diff --git a/akka-http/pom.xml b/akka-http/pom.xml
index 6d73f2f2e6..e276ef1aa4 100644
--- a/akka-http/pom.xml
+++ b/akka-http/pom.xml
@@ -1,47 +1,46 @@
-<?xml version="1.0"?>
-<project
-	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"
-	xmlns="http://maven.apache.org/POM/4.0.0"
-	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
+<?xml version="1.0" encoding="UTF-8"?>
+<project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"
+         xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
+    <modelVersion>4.0.0</modelVersion>
+    <artifactId>akka-http</artifactId>
+    <name>akka-http</name>
 
-	<modelVersion>4.0.0</modelVersion>
-	<artifactId>akka-http</artifactId>
-	<name>akka-http</name>
+    <parent>
+        <groupId>com.baeldung</groupId>
+        <artifactId>parent-modules</artifactId>
+        <version>1.0.0-SNAPSHOT</version>
+    </parent>
 
-	<parent>
-		<artifactId>parent-modules</artifactId>
-		<groupId>com.baeldung</groupId>
-		<version>1.0.0-SNAPSHOT</version>
-	</parent>
+    <dependencies>
+        <dependency>
+            <groupId>com.typesafe.akka</groupId>
+            <artifactId>akka-http_2.12</artifactId>
+            <version>${akka.http.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>com.typesafe.akka</groupId>
+            <artifactId>akka-stream_2.12</artifactId>
+            <version>${akka.stream.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>com.typesafe.akka</groupId>
+            <artifactId>akka-http-jackson_2.12</artifactId>
+            <version>${akka.http.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>com.typesafe.akka</groupId>
+            <artifactId>akka-http-testkit_2.12</artifactId>
+            <version>${akka.http.version}</version>
+            <scope>test</scope>
+        </dependency>
+    </dependencies>
 
-	<dependencies>
-		<dependency>
-			<groupId>com.typesafe.akka</groupId>
-			<artifactId>akka-http_2.12</artifactId>
-			<version>${akka.http.version}</version>
-		</dependency>
-		<dependency>
-			<groupId>com.typesafe.akka</groupId>
-			<artifactId>akka-stream_2.12</artifactId>
-			<version>${akka.stream.version}</version>
-		</dependency>
-		<dependency>
-			<groupId>com.typesafe.akka</groupId>
-			<artifactId>akka-http-jackson_2.12</artifactId>
-			<version>${akka.http.version}</version>
-		</dependency>
-		<dependency>
-			<groupId>com.typesafe.akka</groupId>
-			<artifactId>akka-http-testkit_2.12</artifactId>
-			<version>${akka.http.version}</version>
-			<scope>test</scope>
-		</dependency>
-	</dependencies>
+    <properties>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
+        <akka.http.version>10.0.11</akka.http.version>
+        <akka.stream.version>2.5.11</akka.stream.version>
+    </properties>
 
-	<properties>
-		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-		<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
-		<akka.http.version>10.0.11</akka.http.version>
-		<akka.stream.version>2.5.11</akka.stream.version>
-	</properties>
 </project>
diff --git a/akka-streams/pom.xml b/akka-streams/pom.xml
index 7719bb7351..967556d976 100644
--- a/akka-streams/pom.xml
+++ b/akka-streams/pom.xml
@@ -1,13 +1,13 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>akka-streams</artifactId>
     <name>akka-streams</name>
 
     <parent>
-        <artifactId>parent-modules</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-modules</artifactId>
         <version>1.0.0-SNAPSHOT</version>
     </parent>
 
diff --git a/algorithms-genetic/pom.xml b/algorithms-genetic/pom.xml
index 56f6a31525..eeccb89d6f 100644
--- a/algorithms-genetic/pom.xml
+++ b/algorithms-genetic/pom.xml
@@ -1,10 +1,11 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>algorithms-genetic</artifactId>
     <version>0.0.1-SNAPSHOT</version>
     <name>algorithms-genetic</name>
-    
+
     <parent>
         <groupId>com.baeldung</groupId>
         <artifactId>parent-modules</artifactId>
@@ -60,5 +61,4 @@
         <commons-codec.version>1.11</commons-codec.version>
     </properties>
 
-    
 </project>
diff --git a/algorithms-miscellaneous-1/pom.xml b/algorithms-miscellaneous-1/pom.xml
index affa66f147..a2183f7474 100644
--- a/algorithms-miscellaneous-1/pom.xml
+++ b/algorithms-miscellaneous-1/pom.xml
@@ -1,10 +1,11 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>algorithms-miscellaneous-1</artifactId>
     <version>0.0.1-SNAPSHOT</version>
     <name>algorithms-miscellaneous-1</name>
-    
+
     <parent>
         <groupId>com.baeldung</groupId>
         <artifactId>parent-modules</artifactId>
@@ -43,7 +44,7 @@
             <groupId>com.github.dpaukov</groupId>
             <artifactId>combinatoricslib3</artifactId>
             <version>${combinatoricslib3.version}</version>
-         </dependency>
+        </dependency>
     </dependencies>
 
     <build>
diff --git a/algorithms-miscellaneous-2/pom.xml b/algorithms-miscellaneous-2/pom.xml
index e85dd456a3..e4f4e5c2ea 100644
--- a/algorithms-miscellaneous-2/pom.xml
+++ b/algorithms-miscellaneous-2/pom.xml
@@ -1,5 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>algorithms-miscellaneous-2</artifactId>
     <version>0.0.1-SNAPSHOT</version>
@@ -34,9 +35,9 @@
             <version>${org.jgrapht.core.version}</version>
         </dependency>
         <dependency>
-        	<groupId>org.jgrapht</groupId>
-        	<artifactId>jgrapht-ext</artifactId>
-        	<version>${org.jgrapht.ext.version}</version>
+            <groupId>org.jgrapht</groupId>
+            <artifactId>jgrapht-ext</artifactId>
+            <version>${org.jgrapht.ext.version}</version>
         </dependency>
         <dependency>
             <groupId>pl.allegro.finance</groupId>
diff --git a/algorithms-miscellaneous-3/pom.xml b/algorithms-miscellaneous-3/pom.xml
index 67923d37d7..a893f0a045 100644
--- a/algorithms-miscellaneous-3/pom.xml
+++ b/algorithms-miscellaneous-3/pom.xml
@@ -1,3 +1,4 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
@@ -91,4 +92,5 @@
         <jmh-core.version>1.19</jmh-core.version>
         <jmh-generator.version>1.19</jmh-generator.version>
     </properties>
+
 </project>
\ No newline at end of file
diff --git a/algorithms-miscellaneous-4/pom.xml b/algorithms-miscellaneous-4/pom.xml
index 8fd8f807ba..682234ad07 100644
--- a/algorithms-miscellaneous-4/pom.xml
+++ b/algorithms-miscellaneous-4/pom.xml
@@ -1,10 +1,11 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>algorithms-miscellaneous-4</artifactId>
     <version>0.0.1-SNAPSHOT</version>
     <name>algorithms-miscellaneous-4</name>
-    
+
     <parent>
         <groupId>com.baeldung</groupId>
         <artifactId>parent-modules</artifactId>
diff --git a/algorithms-miscellaneous-5/pom.xml b/algorithms-miscellaneous-5/pom.xml
index 98a7f33474..2f530958e3 100644
--- a/algorithms-miscellaneous-5/pom.xml
+++ b/algorithms-miscellaneous-5/pom.xml
@@ -1,5 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>algorithms-miscellaneous-5</artifactId>
     <version>0.0.1-SNAPSHOT</version>
diff --git a/algorithms-searching/pom.xml b/algorithms-searching/pom.xml
index 6bd4b0233e..da32874a18 100644
--- a/algorithms-searching/pom.xml
+++ b/algorithms-searching/pom.xml
@@ -1,5 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>algorithms-searching</artifactId>
     <version>0.0.1-SNAPSHOT</version>
diff --git a/algorithms-sorting/pom.xml b/algorithms-sorting/pom.xml
index 5bb19a8069..84856235d9 100644
--- a/algorithms-sorting/pom.xml
+++ b/algorithms-sorting/pom.xml
@@ -1,5 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>algorithms-sorting</artifactId>
     <version>0.0.1-SNAPSHOT</version>
diff --git a/animal-sniffer-mvn-plugin/pom.xml b/animal-sniffer-mvn-plugin/pom.xml
index fd8f6d3d8c..d04581aaac 100644
--- a/animal-sniffer-mvn-plugin/pom.xml
+++ b/animal-sniffer-mvn-plugin/pom.xml
@@ -1,5 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>animal-sniffer-mvn-plugin</artifactId>
     <version>1.0-SNAPSHOT</version>
@@ -43,4 +44,5 @@
         <animal-sniffer-maven-plugin.version>1.16</animal-sniffer-maven-plugin.version>
         <org.codehaus.mojo.signature.java16.version>1.0</org.codehaus.mojo.signature.java16.version>
     </properties>
+    
 </project>
\ No newline at end of file
diff --git a/annotations/annotation-processing/pom.xml b/annotations/annotation-processing/pom.xml
index d9aca6040d..645bbd7a0f 100644
--- a/annotations/annotation-processing/pom.xml
+++ b/annotations/annotation-processing/pom.xml
@@ -1,10 +1,10 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://maven.apache.org/POM/4.0.0"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>annotation-processing</artifactId>
     <name>annotation-processing</name>
-    
+
     <parent>
         <groupId>com.baeldung</groupId>
         <version>1.0.0-SNAPSHOT</version>
diff --git a/annotations/annotation-user/pom.xml b/annotations/annotation-user/pom.xml
index 422cc7f119..ae47e19f05 100644
--- a/annotations/annotation-user/pom.xml
+++ b/annotations/annotation-user/pom.xml
@@ -1,13 +1,13 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>annotation-user</artifactId>
     <name>annotation-user</name>
 
     <parent>
-        <artifactId>annotations</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>annotations</artifactId>
         <version>1.0.0-SNAPSHOT</version>
         <relativePath>../</relativePath>
     </parent>
diff --git a/annotations/pom.xml b/annotations/pom.xml
index 5fe89adf0a..41e1e8735b 100644
--- a/annotations/pom.xml
+++ b/annotations/pom.xml
@@ -1,14 +1,14 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>annotations</artifactId>
     <name>annotations</name>
     <packaging>pom</packaging>
-    
+
     <parent>
-        <artifactId>parent-modules</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-modules</artifactId>
         <version>1.0.0-SNAPSHOT</version>
     </parent>
 
diff --git a/antlr/pom.xml b/antlr/pom.xml
index 91b939a882..641382d450 100644
--- a/antlr/pom.xml
+++ b/antlr/pom.xml
@@ -1,5 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>antlr</artifactId>
     <name>antlr</name>
@@ -52,9 +53,10 @@
             </plugin>
         </plugins>
     </build>
-    	
+
     <properties>
         <antlr.version>4.7.1</antlr.version>
         <mojo.version>3.0.0</mojo.version>
     </properties>
+    
 </project>
\ No newline at end of file
diff --git a/apache-avro/pom.xml b/apache-avro/pom.xml
index 6baae9c541..35898711c8 100644
--- a/apache-avro/pom.xml
+++ b/apache-avro/pom.xml
@@ -5,7 +5,7 @@
     <modelVersion>4.0.0</modelVersion>
     <artifactId>apache-avro</artifactId>
     <version>0.0.1-SNAPSHOT</version>
-	<name>apache-avro</name>
+    <name>apache-avro</name>
 
     <parent>
         <groupId>com.baeldung</groupId>
@@ -67,5 +67,5 @@
         <avro.version>1.8.2</avro.version>
         <slf4j.version>1.7.25</slf4j.version>
     </properties>
-	
+
 </project>
diff --git a/apache-bval/pom.xml b/apache-bval/pom.xml
index 786f587fb1..4254242e55 100644
--- a/apache-bval/pom.xml
+++ b/apache-bval/pom.xml
@@ -1,11 +1,11 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>apache-bval</groupId>
     <artifactId>apache-bval</artifactId>
     <version>0.0.1-SNAPSHOT</version>
     <name>apache-bval</name>
-    
+
     <parent>
         <groupId>com.baeldung</groupId>
         <artifactId>parent-modules</artifactId>
diff --git a/apache-curator/pom.xml b/apache-curator/pom.xml
index 259319d547..ea8fb358ad 100644
--- a/apache-curator/pom.xml
+++ b/apache-curator/pom.xml
@@ -1,9 +1,10 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>apache-curator</artifactId>
     <version>0.0.1-SNAPSHOT</version>
-	<name>apache-curator</name>
+    <name>apache-curator</name>
     <packaging>jar</packaging>
 
     <parent>
diff --git a/apache-cxf/cxf-aegis/pom.xml b/apache-cxf/cxf-aegis/pom.xml
index 1d36178b82..6e6c5b093c 100644
--- a/apache-cxf/cxf-aegis/pom.xml
+++ b/apache-cxf/cxf-aegis/pom.xml
@@ -1,9 +1,10 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>cxf-aegis</artifactId>
-	<name>cxf-aegis</name>
-	
+    <name>cxf-aegis</name>
+
     <parent>
         <groupId>com.baeldung</groupId>
         <artifactId>apache-cxf</artifactId>
diff --git a/apache-cxf/cxf-introduction/pom.xml b/apache-cxf/cxf-introduction/pom.xml
index 17f03afd25..0572b01a9d 100644
--- a/apache-cxf/cxf-introduction/pom.xml
+++ b/apache-cxf/cxf-introduction/pom.xml
@@ -1,11 +1,10 @@
 <?xml version="1.0" encoding="UTF-8"?>
-
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>cxf-introduction</artifactId>
-	<name>cxf-introduction</name>
-	
+    <name>cxf-introduction</name>
+
     <parent>
         <groupId>com.baeldung</groupId>
         <artifactId>apache-cxf</artifactId>
diff --git a/apache-cxf/cxf-jaxrs-implementation/pom.xml b/apache-cxf/cxf-jaxrs-implementation/pom.xml
index 03d0f67c90..37b81882bb 100644
--- a/apache-cxf/cxf-jaxrs-implementation/pom.xml
+++ b/apache-cxf/cxf-jaxrs-implementation/pom.xml
@@ -1,11 +1,10 @@
 <?xml version="1.0" encoding="UTF-8"?>
-
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>cxf-jaxrs-implementation</artifactId>
-	<name>cxf-jaxrs-implementation</name>
-	
+    <name>cxf-jaxrs-implementation</name>
+
     <parent>
         <groupId>com.baeldung</groupId>
         <artifactId>apache-cxf</artifactId>
diff --git a/apache-cxf/cxf-spring/pom.xml b/apache-cxf/cxf-spring/pom.xml
index 97715af54c..01ee7d9411 100644
--- a/apache-cxf/cxf-spring/pom.xml
+++ b/apache-cxf/cxf-spring/pom.xml
@@ -1,9 +1,10 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>cxf-spring</artifactId>
+    <name>cxf-spring</name>
     <packaging>war</packaging>
-	<name>cxf-spring</name>
 
     <parent>
         <groupId>com.baeldung</groupId>
@@ -98,7 +99,6 @@
                 </plugins>
             </build>
         </profile>
-
     </profiles>
 
     <properties>
diff --git a/apache-cxf/pom.xml b/apache-cxf/pom.xml
index 0016f33d70..c993eff3a5 100644
--- a/apache-cxf/pom.xml
+++ b/apache-cxf/pom.xml
@@ -1,3 +1,4 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
diff --git a/apache-cxf/sse-jaxrs/pom.xml b/apache-cxf/sse-jaxrs/pom.xml
index cb5c96660a..89bd5d4191 100644
--- a/apache-cxf/sse-jaxrs/pom.xml
+++ b/apache-cxf/sse-jaxrs/pom.xml
@@ -16,6 +16,6 @@
     <modules>
         <module>sse-jaxrs-server</module>
         <module>sse-jaxrs-client</module>
-   </modules>
+    </modules>
 
 </project>
diff --git a/apache-cxf/sse-jaxrs/sse-jaxrs-client/pom.xml b/apache-cxf/sse-jaxrs/sse-jaxrs-client/pom.xml
index be2138e172..37a068003c 100644
--- a/apache-cxf/sse-jaxrs/sse-jaxrs-client/pom.xml
+++ b/apache-cxf/sse-jaxrs/sse-jaxrs-client/pom.xml
@@ -5,7 +5,7 @@
     <modelVersion>4.0.0</modelVersion>
     <artifactId>sse-jaxrs-client</artifactId>
     <name>sse-jaxrs-client</name>
-    
+
     <parent>
         <groupId>com.baeldung</groupId>
         <artifactId>sse-jaxrs</artifactId>
diff --git a/apache-fop/pom.xml b/apache-fop/pom.xml
index 150756d51d..41a6761eaf 100644
--- a/apache-fop/pom.xml
+++ b/apache-fop/pom.xml
@@ -1,5 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>apache-fop</artifactId>
     <version>0.1-SNAPSHOT</version>
diff --git a/apache-geode/pom.xml b/apache-geode/pom.xml
index 195dfadd20..78c6390f80 100644
--- a/apache-geode/pom.xml
+++ b/apache-geode/pom.xml
@@ -6,7 +6,7 @@
     <artifactId>apache-geode</artifactId>
     <version>1.0-SNAPSHOT</version>
     <name>apache-geode</name>
-    
+
     <parent>
         <groupId>com.baeldung</groupId>
         <artifactId>parent-modules</artifactId>
@@ -20,8 +20,9 @@
             <version>${geode.core}</version>
         </dependency>
     </dependencies>
-	
+
     <properties>
         <geode.core>1.6.0</geode.core>
     </properties>
+
 </project>
\ No newline at end of file
diff --git a/apache-meecrowave/pom.xml b/apache-meecrowave/pom.xml
index 51c6514992..9e79780e22 100644
--- a/apache-meecrowave/pom.xml
+++ b/apache-meecrowave/pom.xml
@@ -1,11 +1,12 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>apache-meecrowave</artifactId>
     <version>0.0.1</version>
     <name>apache-meecrowave</name>
     <description>A sample REST API application with Meecrowave</description>
-    
+
     <parent>
         <groupId>com.baeldung</groupId>
         <artifactId>parent-modules</artifactId>
@@ -38,7 +39,7 @@
             <scope>test</scope>
         </dependency>
     </dependencies>
-	
+
     <build>
         <plugins>
             <plugin>
@@ -48,14 +49,15 @@
             </plugin>
         </plugins>
     </build>
-	
+
     <properties>
         <maven.compiler.source>1.8</maven.compiler.source>
         <maven.compiler.target>1.8</maven.compiler.target>
-		<meecrowave-junit.version>1.2.0</meecrowave-junit.version>
-		<okhttp.version>3.10.0</okhttp.version>
-		<meecrowave-jpa.version>1.2.1</meecrowave-jpa.version>
-		<meecrowave-core.version>1.2.1</meecrowave-core.version>
-		<meecrowave-maven-plugin.version>1.2.1</meecrowave-maven-plugin.version>
+        <meecrowave-junit.version>1.2.0</meecrowave-junit.version>
+        <okhttp.version>3.10.0</okhttp.version>
+        <meecrowave-jpa.version>1.2.1</meecrowave-jpa.version>
+        <meecrowave-core.version>1.2.1</meecrowave-core.version>
+        <meecrowave-maven-plugin.version>1.2.1</meecrowave-maven-plugin.version>
     </properties>
+
 </project>
\ No newline at end of file
diff --git a/apache-olingo/olingo2/pom.xml b/apache-olingo/olingo2/pom.xml
index 95b123efbc..fdbc9b4390 100644
--- a/apache-olingo/olingo2/pom.xml
+++ b/apache-olingo/olingo2/pom.xml
@@ -1,87 +1,87 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0"
-	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
-	<modelVersion>4.0.0</modelVersion>
-	<groupId>org.baeldung.examples.olingo2</groupId>
-	<artifactId>olingo2</artifactId>
-	<name>olingo2</name>
-	<description>Sample Olingo 2 Project</description>
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <groupId>org.baeldung.examples.olingo2</groupId>
+    <artifactId>olingo2</artifactId>
+    <name>olingo2</name>
+    <description>Sample Olingo 2 Project</description>
 
     <parent>
-        <artifactId>parent-boot-2</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-2</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../../parent-boot-2</relativePath>
     </parent>
 
-	<dependencies>
-		<dependency>
-			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-starter-jersey</artifactId>
-		</dependency>
-		<dependency>
-			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-starter-data-jpa</artifactId>
-		</dependency>
-		<dependency>
-			<groupId>com.h2database</groupId>
-			<artifactId>h2</artifactId>
-			<scope>runtime</scope>
-		</dependency>
-		<dependency>
-			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-configuration-processor</artifactId>
-			<optional>true</optional>
-		</dependency>
-		<dependency>
-			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-starter-test</artifactId>
-			<scope>test</scope>
-		</dependency>
+    <dependencies>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-jersey</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-data-jpa</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>com.h2database</groupId>
+            <artifactId>h2</artifactId>
+            <scope>runtime</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-configuration-processor</artifactId>
+            <optional>true</optional>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-test</artifactId>
+            <scope>test</scope>
+        </dependency>
 
-		<!-- Olingo 2 Dependencies -->
-		<dependency>
-			<groupId>org.apache.olingo</groupId>
-			<artifactId>olingo-odata2-core</artifactId>
-			<version>${olingo2.version}</version>
-			<!-- Avoid jax-rs version conflict by excluding Olingo's version -->
-			<exclusions>
-				<exclusion>
-					<groupId>javax.ws.rs</groupId>
-					<artifactId>javax.ws.rs-api</artifactId>
-				</exclusion>
-			</exclusions>
-		</dependency>
-		<dependency>
-			<groupId>org.apache.olingo</groupId>
-			<artifactId>olingo-odata2-jpa-processor-core</artifactId>
-			<version>${olingo2.version}</version>
-		</dependency>
-		<dependency>
-			<groupId>org.apache.olingo</groupId>
-			<artifactId>olingo-odata2-jpa-processor-ref</artifactId>
-			<version>${olingo2.version}</version>
-			<exclusions>
-				<exclusion>
-					<groupId>org.eclipse.persistence</groupId>
-					<artifactId>eclipselink</artifactId>
-				</exclusion>
-			</exclusions>
-		</dependency>
-	</dependencies>
+        <!-- Olingo 2 Dependencies -->
+        <dependency>
+            <groupId>org.apache.olingo</groupId>
+            <artifactId>olingo-odata2-core</artifactId>
+            <version>${olingo2.version}</version>
+            <!-- Avoid jax-rs version conflict by excluding Olingo's version -->
+            <exclusions>
+                <exclusion>
+                    <groupId>javax.ws.rs</groupId>
+                    <artifactId>javax.ws.rs-api</artifactId>
+                </exclusion>
+            </exclusions>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.olingo</groupId>
+            <artifactId>olingo-odata2-jpa-processor-core</artifactId>
+            <version>${olingo2.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.olingo</groupId>
+            <artifactId>olingo-odata2-jpa-processor-ref</artifactId>
+            <version>${olingo2.version}</version>
+            <exclusions>
+                <exclusion>
+                    <groupId>org.eclipse.persistence</groupId>
+                    <artifactId>eclipselink</artifactId>
+                </exclusion>
+            </exclusions>
+        </dependency>
+    </dependencies>
 
-	<build>
-		<plugins>
-			<plugin>
-				<groupId>org.springframework.boot</groupId>
-				<artifactId>spring-boot-maven-plugin</artifactId>
-			</plugin>
-		</plugins>
-	</build>
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.springframework.boot</groupId>
+                <artifactId>spring-boot-maven-plugin</artifactId>
+            </plugin>
+        </plugins>
+    </build>
 
-	<properties>
-		<olingo2.version>2.0.11</olingo2.version>
-	</properties>
+    <properties>
+        <olingo2.version>2.0.11</olingo2.version>
+    </properties>
 
 </project>
diff --git a/apache-opennlp/pom.xml b/apache-opennlp/pom.xml
index 6b2e6a9729..701d33c6fd 100644
--- a/apache-opennlp/pom.xml
+++ b/apache-opennlp/pom.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>apache-opennlp</artifactId>
     <version>1.0-SNAPSHOT</version>
diff --git a/apache-poi/pom.xml b/apache-poi/pom.xml
index 54c3e8e928..a114946c47 100644
--- a/apache-poi/pom.xml
+++ b/apache-poi/pom.xml
@@ -1,5 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>apache-poi</artifactId>
     <version>0.0.1-SNAPSHOT</version>
diff --git a/apache-pulsar/pom.xml b/apache-pulsar/pom.xml
index fdd9ae1e95..206e1ab74d 100644
--- a/apache-pulsar/pom.xml
+++ b/apache-pulsar/pom.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd" xmlns="http://maven.apache.org/POM/4.0.0"
-    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
     <modelVersion>4.0.0</modelVersion>
     <groupId>com.baeldung.pulsar</groupId>
     <artifactId>apache-pulsar</artifactId>
@@ -22,8 +22,9 @@
             <scope>compile</scope>
         </dependency>
     </dependencies>
-	
+
     <properties>
- 		<pulsar-client.version>2.1.1-incubating</pulsar-client.version>
+        <pulsar-client.version>2.1.1-incubating</pulsar-client.version>
     </properties>
+
 </project>
diff --git a/apache-shiro/pom.xml b/apache-shiro/pom.xml
index 7f0d07589c..0458ba783f 100644
--- a/apache-shiro/pom.xml
+++ b/apache-shiro/pom.xml
@@ -6,10 +6,10 @@
     <artifactId>apache-shiro</artifactId>
     <version>1.0-SNAPSHOT</version>
     <name>apache-shiro</name>
-    
+
     <parent>
-        <artifactId>parent-boot-1</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-1</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../parent-boot-1</relativePath>
     </parent>
diff --git a/apache-solrj/pom.xml b/apache-solrj/pom.xml
index b19ceb1e48..b25fd0fb04 100644
--- a/apache-solrj/pom.xml
+++ b/apache-solrj/pom.xml
@@ -1,5 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>apache-solrj</artifactId>
     <version>0.0.1-SNAPSHOT</version>
diff --git a/apache-spark/pom.xml b/apache-spark/pom.xml
index 4eb00192ac..59843adc71 100644
--- a/apache-spark/pom.xml
+++ b/apache-spark/pom.xml
@@ -1,110 +1,112 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0"
-	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
-	<modelVersion>4.0.0</modelVersion>
-	<artifactId>apache-spark</artifactId>
-	<version>1.0-SNAPSHOT</version>
-	<name>apache-spark</name>
-	<packaging>jar</packaging>
-	<url>http://maven.apache.org</url>
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <artifactId>apache-spark</artifactId>
+    <version>1.0-SNAPSHOT</version>
+    <name>apache-spark</name>
+    <packaging>jar</packaging>
+    <url>http://maven.apache.org</url>
 
-	<parent>
-		<groupId>com.baeldung</groupId>
-		<artifactId>parent-modules</artifactId>
-		<version>1.0.0-SNAPSHOT</version>
-	</parent>
+    <parent>
+        <groupId>com.baeldung</groupId>
+        <artifactId>parent-modules</artifactId>
+        <version>1.0.0-SNAPSHOT</version>
+    </parent>
 
-	<dependencies>
-		<dependency>
-			<groupId>org.apache.spark</groupId>
-			<artifactId>spark-core_2.11</artifactId>
-			<version>${org.apache.spark.spark-core.version}</version>
-			<scope>provided</scope>
-		</dependency>
-		<dependency>
-			<groupId>org.apache.spark</groupId>
-			<artifactId>spark-sql_2.11</artifactId>
-			<version>${org.apache.spark.spark-sql.version}</version>
-			<scope>provided</scope>
-		</dependency>
-		<dependency>
-			<groupId>org.apache.spark</groupId>
-			<artifactId>spark-graphx_2.11</artifactId>
-			<version>${org.apache.spark.spark-graphx.version}</version>
-			<scope>provided</scope>
-		</dependency>
-		<dependency>
-			<groupId>graphframes</groupId>
-			<artifactId>graphframes</artifactId>
-			<version>${graphframes.version}</version>
-			<scope>provided</scope>
-		</dependency>
-		<dependency>
-			<groupId>org.apache.spark</groupId>
-			<artifactId>spark-streaming_2.11</artifactId>
-			<version>${org.apache.spark.spark-streaming.version}</version>
-			<scope>provided</scope>
-		</dependency>
-		<dependency>
-			<groupId>org.apache.spark</groupId>
-			<artifactId>spark-mllib_2.11</artifactId>
-			<version>${org.apache.spark.spark-mllib.version}</version>
-			<scope>provided</scope>
-		</dependency>
-		<dependency>
-			<groupId>org.apache.spark</groupId>
-			<artifactId>spark-streaming-kafka-0-10_2.11</artifactId>
-			<version>${org.apache.spark.spark-streaming-kafka.version}</version>
-		</dependency>
-		<dependency>
-			<groupId>com.datastax.spark</groupId>
-			<artifactId>spark-cassandra-connector_2.11</artifactId>
-			<version>${com.datastax.spark.spark-cassandra-connector.version}</version>
-		</dependency>
-		<dependency>
-			<groupId>com.datastax.spark</groupId>
-			<artifactId>spark-cassandra-connector-java_2.11</artifactId>
-			<version>${com.datastax.spark.spark-cassandra-connector-java.version}</version>
-		</dependency>
-	</dependencies>
+    <dependencies>
+        <dependency>
+            <groupId>org.apache.spark</groupId>
+            <artifactId>spark-core_2.11</artifactId>
+            <version>${org.apache.spark.spark-core.version}</version>
+            <scope>provided</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.spark</groupId>
+            <artifactId>spark-sql_2.11</artifactId>
+            <version>${org.apache.spark.spark-sql.version}</version>
+            <scope>provided</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.spark</groupId>
+            <artifactId>spark-graphx_2.11</artifactId>
+            <version>${org.apache.spark.spark-graphx.version}</version>
+            <scope>provided</scope>
+        </dependency>
+        <dependency>
+            <groupId>graphframes</groupId>
+            <artifactId>graphframes</artifactId>
+            <version>${graphframes.version}</version>
+            <scope>provided</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.spark</groupId>
+            <artifactId>spark-streaming_2.11</artifactId>
+            <version>${org.apache.spark.spark-streaming.version}</version>
+            <scope>provided</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.spark</groupId>
+            <artifactId>spark-mllib_2.11</artifactId>
+            <version>${org.apache.spark.spark-mllib.version}</version>
+            <scope>provided</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.spark</groupId>
+            <artifactId>spark-streaming-kafka-0-10_2.11</artifactId>
+            <version>${org.apache.spark.spark-streaming-kafka.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>com.datastax.spark</groupId>
+            <artifactId>spark-cassandra-connector_2.11</artifactId>
+            <version>${com.datastax.spark.spark-cassandra-connector.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>com.datastax.spark</groupId>
+            <artifactId>spark-cassandra-connector-java_2.11</artifactId>
+            <version>${com.datastax.spark.spark-cassandra-connector-java.version}</version>
+        </dependency>
+    </dependencies>
 
-	<build>
-		<plugins>
-			<plugin>
-				<artifactId>maven-assembly-plugin</artifactId>
-				<executions>
-					<execution>
-						<phase>package</phase>
-						<goals>
-							<goal>single</goal>
-						</goals>
-					</execution>
-				</executions>
-				<configuration>
-					<descriptorRefs>
-						<descriptorRef>jar-with-dependencies</descriptorRef>
-					</descriptorRefs>
-				</configuration>
-			</plugin>
-		</plugins>
-	</build>
+    <build>
+        <plugins>
+            <plugin>
+                <artifactId>maven-assembly-plugin</artifactId>
+                <executions>
+                    <execution>
+                        <phase>package</phase>
+                        <goals>
+                            <goal>single</goal>
+                        </goals>
+                    </execution>
+                </executions>
+                <configuration>
+                    <descriptorRefs>
+                        <descriptorRef>jar-with-dependencies</descriptorRef>
+                    </descriptorRefs>
+                </configuration>
+            </plugin>
+        </plugins>
+    </build>
 
-	<properties>
-		<org.apache.spark.spark-core.version>2.3.0</org.apache.spark.spark-core.version>
-		<org.apache.spark.spark-sql.version>2.3.0</org.apache.spark.spark-sql.version>
-		<org.apache.spark.spark-streaming.version>2.3.0</org.apache.spark.spark-streaming.version>
-		<org.apache.spark.spark-mllib.version>2.3.0</org.apache.spark.spark-mllib.version>
-		<org.apache.spark.spark-graphx.version>2.3.0</org.apache.spark.spark-graphx.version>
-		<graphframes.version>0.7.0-spark2.4-s_2.11</graphframes.version>
-		<org.apache.spark.spark-streaming-kafka.version>2.3.0</org.apache.spark.spark-streaming-kafka.version>
-		<com.datastax.spark.spark-cassandra-connector.version>2.3.0</com.datastax.spark.spark-cassandra-connector.version>
-		<com.datastax.spark.spark-cassandra-connector-java.version>1.5.2</com.datastax.spark.spark-cassandra-connector-java.version>
-	</properties>
+    <repositories>
+        <repository>
+            <id>SparkPackagesRepo</id>
+            <url>http://dl.bintray.com/spark-packages/maven</url>
+        </repository>
+    </repositories>
+
+    <properties>
+        <org.apache.spark.spark-core.version>2.3.0</org.apache.spark.spark-core.version>
+        <org.apache.spark.spark-sql.version>2.3.0</org.apache.spark.spark-sql.version>
+        <org.apache.spark.spark-streaming.version>2.3.0</org.apache.spark.spark-streaming.version>
+        <org.apache.spark.spark-mllib.version>2.3.0</org.apache.spark.spark-mllib.version>
+        <org.apache.spark.spark-graphx.version>2.3.0</org.apache.spark.spark-graphx.version>
+        <graphframes.version>0.7.0-spark2.4-s_2.11</graphframes.version>
+        <org.apache.spark.spark-streaming-kafka.version>2.3.0</org.apache.spark.spark-streaming-kafka.version>
+        <com.datastax.spark.spark-cassandra-connector.version>2.3.0</com.datastax.spark.spark-cassandra-connector.version>
+        <com.datastax.spark.spark-cassandra-connector-java.version>1.5.2</com.datastax.spark.spark-cassandra-connector-java.version>
+    </properties>
 
-	<repositories>
-		<repository>
-			<id>SparkPackagesRepo</id>
-			<url>http://dl.bintray.com/spark-packages/maven</url>
-		</repository>
-	</repositories>
 </project>
diff --git a/apache-tapestry/pom.xml b/apache-tapestry/pom.xml
index da033d69d5..e306b56b4a 100644
--- a/apache-tapestry/pom.xml
+++ b/apache-tapestry/pom.xml
@@ -1,12 +1,14 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd"
          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://maven.apache.org/POM/4.0.0">
     <modelVersion>4.0.0</modelVersion>
     <groupId>com.baeldung</groupId>
     <artifactId>apache-tapestry</artifactId>
     <version>0.0.1-SNAPSHOT</version>
-    <packaging>war</packaging>
     <name>apache-tapestry</name>
-        <dependencies>
+    <packaging>war</packaging>
+
+    <dependencies>
         <!-- To set up an application with a database, change the artifactId below to
              tapestry-hibernate, and add a dependency on your JDBC driver. You'll also
              need to add Hibernate configuration files, such as hibernate.cfg.xml. -->
@@ -22,7 +24,7 @@
             <artifactId>slf4j-log4j12</artifactId>
             <version>${slf4j-release-version}</version>
         </dependency>
-        
+
         <dependency>
             <groupId>org.apache.tapestry</groupId>
             <artifactId>tapestry-webresources</artifactId>
@@ -71,8 +73,8 @@ of testing facilities designed for use with TestNG (http://testng.org/), so it's
             <version>${tapestry-release-version}</version>
             <scope>provided</scope>
         </dependency>
-
     </dependencies>
+
     <build>
         <finalName>apache-tapestry</finalName>
         <plugins>
@@ -142,6 +144,6 @@ of testing facilities designed for use with TestNG (http://testng.org/), so it's
         <servlet-api-release-version>2.5</servlet-api-release-version>
         <testng-release-version>6.8.21</testng-release-version>
         <slf4j-release-version>1.7.19</slf4j-release-version>
-
     </properties>
+
 </project>
diff --git a/apache-thrift/pom.xml b/apache-thrift/pom.xml
index ab54fc2cef..409467ccc5 100644
--- a/apache-thrift/pom.xml
+++ b/apache-thrift/pom.xml
@@ -1,5 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>apache-thrift</artifactId>
     <version>0.0.1-SNAPSHOT</version>
diff --git a/apache-tika/pom.xml b/apache-tika/pom.xml
index 0399914a5f..24c904aec3 100644
--- a/apache-tika/pom.xml
+++ b/apache-tika/pom.xml
@@ -1,10 +1,11 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>apache-tika</artifactId>
     <version>0.0.1-SNAPSHOT</version>
     <name>apache-tika</name>
-    
+
     <parent>
         <groupId>com.baeldung</groupId>
         <artifactId>parent-modules</artifactId>
diff --git a/apache-velocity/pom.xml b/apache-velocity/pom.xml
index b370b11cc1..61d7e74498 100644
--- a/apache-velocity/pom.xml
+++ b/apache-velocity/pom.xml
@@ -1,8 +1,9 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <version>0.1-SNAPSHOT</version>
     <artifactId>apache-velocity</artifactId>
+    <version>0.1-SNAPSHOT</version>
     <name>apache-velocity</name>
     <packaging>war</packaging>
 
diff --git a/apache-zookeeper/pom.xml b/apache-zookeeper/pom.xml
index 53e4217358..0bab6cded6 100644
--- a/apache-zookeeper/pom.xml
+++ b/apache-zookeeper/pom.xml
@@ -1,5 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>apache-zookeeper</artifactId>
     <version>0.0.1-SNAPSHOT</version>
diff --git a/asciidoctor/pom.xml b/asciidoctor/pom.xml
index 42ee544eb0..5421df91be 100644
--- a/asciidoctor/pom.xml
+++ b/asciidoctor/pom.xml
@@ -1,13 +1,13 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>asciidoctor</artifactId>
     <name>asciidoctor</name>
 
     <parent>
-        <artifactId>parent-modules</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-modules</artifactId>
         <version>1.0.0-SNAPSHOT</version>
     </parent>
 
@@ -63,7 +63,6 @@
     <properties>
         <asciidoctor-maven-plugin.version>1.5.6</asciidoctor-maven-plugin.version>
         <asciidoctorj.version>1.5.6</asciidoctorj.version>
-        
         <asciidoctorj-pdf.version>1.5.0-alpha.15</asciidoctorj-pdf.version>
         <asciidoctorj-pdf.plugin.version>1.5.0-alpha.15</asciidoctorj-pdf.plugin.version>
     </properties>
diff --git a/asm/pom.xml b/asm/pom.xml
index e56438c808..77dbab964c 100644
--- a/asm/pom.xml
+++ b/asm/pom.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <groupId>com.baeldung.examples</groupId>
     <artifactId>asm</artifactId>
diff --git a/atomix/pom.xml b/atomix/pom.xml
index e50c1d867f..7821ef26d7 100644
--- a/atomix/pom.xml
+++ b/atomix/pom.xml
@@ -1,11 +1,12 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <groupId>com.atomix.io</groupId>
     <artifactId>atomix</artifactId>
     <version>0.0.1-SNAPSHOT</version>
     <name>atomix</name>
-    
+
     <parent>
         <groupId>com.baeldung</groupId>
         <artifactId>parent-modules</artifactId>
diff --git a/aws-lambda/pom.xml b/aws-lambda/pom.xml
index 1f3c31f87c..12be77baef 100644
--- a/aws-lambda/pom.xml
+++ b/aws-lambda/pom.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>aws-lambda</artifactId>
     <version>0.1.0-SNAPSHOT</version>
@@ -8,13 +8,12 @@
     <packaging>jar</packaging>
 
     <parent>
-        <artifactId>parent-modules</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-modules</artifactId>
         <version>1.0.0-SNAPSHOT</version>
     </parent>
 
     <dependencies>
-
         <dependency>
             <groupId>com.amazonaws</groupId>
             <artifactId>aws-java-sdk-dynamodb</artifactId>
@@ -63,7 +62,7 @@
             <version>${json-simple.version}</version>
         </dependency>
     </dependencies>
-    
+
     <build>
         <plugins>
             <plugin>
@@ -84,7 +83,7 @@
             </plugin>
         </plugins>
     </build>
-    
+
     <properties>
         <json-simple.version>1.1.1</json-simple.version>
         <commons-io.version>2.5</commons-io.version>
@@ -94,5 +93,5 @@
         <aws-java-sdk.version>1.11.241</aws-java-sdk.version>
         <maven-shade-plugin.version>3.0.0</maven-shade-plugin.version>
     </properties>
-    
+
 </project>
\ No newline at end of file
diff --git a/aws/pom.xml b/aws/pom.xml
index 45a30f96ba..19057d48e9 100644
--- a/aws/pom.xml
+++ b/aws/pom.xml
@@ -1,5 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>aws</artifactId>
     <version>0.1.0-SNAPSHOT</version>
@@ -18,7 +19,7 @@
             <artifactId>aws-java-sdk</artifactId>
             <version>${aws-java-sdk.version}</version>
         </dependency>
-       <dependency>
+        <dependency>
             <groupId>org.mockito</groupId>
             <artifactId>mockito-core</artifactId>
             <version>${mockito-core.version}</version>
diff --git a/axon/pom.xml b/axon/pom.xml
index 21e21f0ef2..be74b38fa6 100644
--- a/axon/pom.xml
+++ b/axon/pom.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>axon</artifactId>
     <name>axon</name>
diff --git a/azure/pom.xml b/azure/pom.xml
index 3d9c296748..7134a47cd7 100644
--- a/azure/pom.xml
+++ b/azure/pom.xml
@@ -1,16 +1,16 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>azure</artifactId>
     <version>0.1</version>
     <name>azure</name>
-    <description>Demo project for Spring Boot on Azure</description>
     <packaging>war</packaging>
+    <description>Demo project for Spring Boot on Azure</description>
 
     <parent>
-        <artifactId>parent-boot-2</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-2</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../parent-boot-2</relativePath>
     </parent>
@@ -43,7 +43,6 @@
             <artifactId>mysql-connector-java</artifactId>
             <scope>runtime</scope>
         </dependency>
-
     </dependencies>
 
     <build>
diff --git a/bazel/bazelapp/pom.xml b/bazel/bazelapp/pom.xml
index e56cc06ef4..6440c26cd6 100644
--- a/bazel/bazelapp/pom.xml
+++ b/bazel/bazelapp/pom.xml
@@ -5,10 +5,10 @@
     <modelVersion>4.0.0</modelVersion>
     <artifactId>bazelapp</artifactId>
     <name>bazelapp</name>
-	
+
     <parent>
-        <artifactId>bazel</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>bazel</artifactId>
         <version>1.0.0-SNAPSHOT</version>
     </parent>
 
diff --git a/bazel/bazelgreeting/pom.xml b/bazel/bazelgreeting/pom.xml
index e688a55bd5..ae8a6e4080 100644
--- a/bazel/bazelgreeting/pom.xml
+++ b/bazel/bazelgreeting/pom.xml
@@ -5,12 +5,11 @@
     <modelVersion>4.0.0</modelVersion>
     <artifactId>bazelgreeting</artifactId>
     <name>bazelgreeting</name>
-	
+
     <parent>
-        <artifactId>bazel</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>bazel</artifactId>
         <version>1.0.0-SNAPSHOT</version>
     </parent>
 
-
 </project>
\ No newline at end of file
diff --git a/bazel/pom.xml b/bazel/pom.xml
index cb784ec6e6..b1585cc73b 100644
--- a/bazel/pom.xml
+++ b/bazel/pom.xml
@@ -4,19 +4,18 @@
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>bazel</artifactId>
-    <packaging>pom</packaging>
     <name>bazel</name>
-	
+    <packaging>pom</packaging>
+
     <parent>
-        <artifactId>parent-modules</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-modules</artifactId>
         <version>1.0.0-SNAPSHOT</version>
     </parent>
-	
+
     <modules>
         <module>bazelgreeting</module>
         <module>bazelapp</module>
     </modules>
 
-
 </project>
\ No newline at end of file
diff --git a/blade/pom.xml b/blade/pom.xml
index 6f8a78852d..e302f33c51 100644
--- a/blade/pom.xml
+++ b/blade/pom.xml
@@ -1,16 +1,16 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0"
-    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
-
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>blade</artifactId>
     <name>blade</name>
 
-	<parent>
-		<groupId>com.baeldung</groupId>
-		<artifactId>parent-modules</artifactId>
-		<version>1.0.0-SNAPSHOT</version>
-	</parent>
+    <parent>
+        <groupId>com.baeldung</groupId>
+        <artifactId>parent-modules</artifactId>
+        <version>1.0.0-SNAPSHOT</version>
+    </parent>
 
     <dependencies>
         <dependency>
@@ -65,8 +65,9 @@
             <scope>test</scope>
         </dependency>
     </dependencies>
+
     <build>
-        <finalName>sample-blade-app</finalName>
+        <finalName>blade</finalName>
         <plugins>
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
@@ -121,7 +122,6 @@
                 </executions>
             </plugin>
 
-
             <plugin>
                 <artifactId>maven-assembly-plugin</artifactId>
                 <version>3.1.0</version>
@@ -149,17 +149,18 @@
             </plugin>
         </plugins>
     </build>
-	
+
     <properties>
-		<blade-mvc.version>2.0.14.RELEASE</blade-mvc.version>
-		<bootstrap.version>4.2.1</bootstrap.version>
-		<commons-lang3.version>3.8.1</commons-lang3.version>
-		<lombok.version>1.18.4</lombok.version>
-		<httpclient.version>4.5.6</httpclient.version>
-		<httpmime.version>4.5.6</httpmime.version>
-		<httpcore.version>4.4.10</httpcore.version>
-		<assertj-core.version>3.11.1</assertj-core.version>
-		<maven-failsafe-plugin.version>3.0.0-M3</maven-failsafe-plugin.version>
-		<process-exec-maven-plugin.version>0.7</process-exec-maven-plugin.version>
+        <blade-mvc.version>2.0.14.RELEASE</blade-mvc.version>
+        <bootstrap.version>4.2.1</bootstrap.version>
+        <commons-lang3.version>3.8.1</commons-lang3.version>
+        <lombok.version>1.18.4</lombok.version>
+        <httpclient.version>4.5.6</httpclient.version>
+        <httpmime.version>4.5.6</httpmime.version>
+        <httpcore.version>4.4.10</httpcore.version>
+        <assertj-core.version>3.11.1</assertj-core.version>
+        <maven-failsafe-plugin.version>3.0.0-M3</maven-failsafe-plugin.version>
+        <process-exec-maven-plugin.version>0.7</process-exec-maven-plugin.version>
     </properties>
+
 </project>
diff --git a/bootique/pom.xml b/bootique/pom.xml
index 7601321b99..8e40b3ec8d 100644
--- a/bootique/pom.xml
+++ b/bootique/pom.xml
@@ -1,5 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <groupId>com.baeldung.bootique</groupId>
     <artifactId>bootique</artifactId>
diff --git a/cas/cas-secured-app/pom.xml b/cas/cas-secured-app/pom.xml
index 338a9e5653..63d5d43417 100644
--- a/cas/cas-secured-app/pom.xml
+++ b/cas/cas-secured-app/pom.xml
@@ -1,15 +1,15 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>cas-secured-app</artifactId>
     <name>cas-secured-app</name>
-    <description>Demo project for CAS</description>
     <packaging>jar</packaging>
+    <description>Demo project for CAS</description>
 
     <parent>
-        <artifactId>parent-boot-1</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-1</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../../parent-boot-1</relativePath>
     </parent>
diff --git a/cas/cas-server/pom.xml b/cas/cas-server/pom.xml
index 8a1e602114..bfd8f685ac 100644
--- a/cas/cas-server/pom.xml
+++ b/cas/cas-server/pom.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd ">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd ">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>cas-server</artifactId>
     <version>1.0</version>
@@ -8,12 +8,12 @@
     <packaging>war</packaging>
 
     <parent>
-        <artifactId>parent-boot-1</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-1</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../../parent-boot-1</relativePath>
     </parent>
-    
+
     <dependencies>
         <dependency>
             <groupId>org.apereo.cas</groupId>
@@ -198,7 +198,7 @@
 
         <wrapper-maven-plugin.version>0.0.4</wrapper-maven-plugin.version>
         <maven-war-plugin.version>2.6</maven-war-plugin.version>
-        
+
         <echo-maven-plugin.version>0.3.0</echo-maven-plugin.version>
         <pgpverify-maven-plugin.version>1.1.0</pgpverify-maven-plugin.version>
     </properties>
diff --git a/cas/pom.xml b/cas/pom.xml
index 6d141277c5..f458b23797 100644
--- a/cas/pom.xml
+++ b/cas/pom.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://maven.apache.org/POM/4.0.0"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>cas</artifactId>
     <name>cas</name>
diff --git a/cdi/pom.xml b/cdi/pom.xml
index 809622a5db..87ad9c111a 100644
--- a/cdi/pom.xml
+++ b/cdi/pom.xml
@@ -5,7 +5,7 @@
     <artifactId>cdi</artifactId>
     <version>1.0-SNAPSHOT</version>
     <name>cdi</name>
-    
+
     <parent>
         <groupId>com.baeldung</groupId>
         <artifactId>parent-spring-4</artifactId>
@@ -23,7 +23,7 @@
             <groupId>org.jboss.weld.se</groupId>
             <artifactId>weld-se-core</artifactId>
             <version>${weld-se-core.version}</version>
-        </dependency>  
+        </dependency>
         <dependency>
             <groupId>org.hamcrest</groupId>
             <artifactId>hamcrest-core</artifactId>
@@ -53,7 +53,7 @@
             <scope>test</scope>
         </dependency>
     </dependencies>
-	
+
     <properties>
         <cdi-api.version>2.0.SP1</cdi-api.version>
         <weld-se-core.version>3.0.5.Final</weld-se-core.version>
@@ -61,4 +61,5 @@
         <assertj-core.version>3.10.0</assertj-core.version>
         <spring.version>5.1.2.RELEASE</spring.version>
     </properties>
+
 </project>
diff --git a/checker-plugin/pom.xml b/checker-plugin/pom.xml
index 63def4dbdc..0140d7951a 100644
--- a/checker-plugin/pom.xml
+++ b/checker-plugin/pom.xml
@@ -1,3 +1,4 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://maven.apache.org/POM/4.0.0"
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
     <modelVersion>4.0.0</modelVersion>
diff --git a/cloud-foundry-uaa/cf-uaa-oauth2-client/pom.xml b/cloud-foundry-uaa/cf-uaa-oauth2-client/pom.xml
index fe1b919905..1429ca8b24 100644
--- a/cloud-foundry-uaa/cf-uaa-oauth2-client/pom.xml
+++ b/cloud-foundry-uaa/cf-uaa-oauth2-client/pom.xml
@@ -8,8 +8,8 @@
     <description>Demo project for Spring Boot</description>
 
     <parent>
-        <artifactId>parent-boot-2</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-2</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../../parent-boot-2</relativePath>
     </parent>
@@ -33,5 +33,5 @@
             </plugin>
         </plugins>
     </build>
-	
+
 </project>
diff --git a/cloud-foundry-uaa/cf-uaa-oauth2-resource-server/pom.xml b/cloud-foundry-uaa/cf-uaa-oauth2-resource-server/pom.xml
index 7cd47bb7b3..6297c6f673 100644
--- a/cloud-foundry-uaa/cf-uaa-oauth2-resource-server/pom.xml
+++ b/cloud-foundry-uaa/cf-uaa-oauth2-resource-server/pom.xml
@@ -8,12 +8,12 @@
     <description>Demo project for Spring Boot</description>
 
     <parent>
-        <artifactId>parent-boot-2</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-2</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../../parent-boot-2</relativePath>
     </parent>
-	
+
     <dependencies>
         <dependency>
             <groupId>org.springframework.boot</groupId>
diff --git a/code-generation/pom.xml b/code-generation/pom.xml
index 91ce0a4639..7cc076c58f 100644
--- a/code-generation/pom.xml
+++ b/code-generation/pom.xml
@@ -1,5 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>code-generation</artifactId>
     <version>1.0</version>
diff --git a/core-groovy-2/pom.xml b/core-groovy-2/pom.xml
index 08526bac9a..e0987de4b3 100644
--- a/core-groovy-2/pom.xml
+++ b/core-groovy-2/pom.xml
@@ -180,9 +180,10 @@
         <junit.platform.version>1.0.0</junit.platform.version>
         <hsqldb.version>2.4.0</hsqldb.version>
         <spock-core.version>1.1-groovy-2.4</spock-core.version>
-        <groovy-wslite.version>1.1.3</groovy-wslite.version>        
+        <groovy-wslite.version>1.1.3</groovy-wslite.version>
         <logback.version>1.2.3</logback.version>
         <groovy.version>2.5.7</groovy.version>
     </properties>
+
 </project>
 
diff --git a/core-groovy-collections/pom.xml b/core-groovy-collections/pom.xml
index bf3ae26592..423be5e977 100644
--- a/core-groovy-collections/pom.xml
+++ b/core-groovy-collections/pom.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>core-groovy-collections</artifactId>
     <version>1.0-SNAPSHOT</version>
@@ -101,11 +101,11 @@
                 <artifactId>maven-surefire-plugin</artifactId>
                 <version>2.20.1</version>
                 <configuration>
-                <useFile>false</useFile>
-                <includes>
-                    <include>**/*Test.java</include>
-                    <include>**/*Spec.java</include>
-                </includes>
+                    <useFile>false</useFile>
+                    <includes>
+                        <include>**/*Test.java</include>
+                        <include>**/*Spec.java</include>
+                    </includes>
                 </configuration>
             </plugin>
         </plugins>
@@ -127,5 +127,6 @@
         <spock-core.version>1.1-groovy-2.4</spock-core.version>
         <gmavenplus-plugin.version>1.6</gmavenplus-plugin.version>
     </properties>
+
 </project>
 
diff --git a/core-groovy/pom.xml b/core-groovy/pom.xml
index 80d6f8d2d5..6407f7c0c6 100644
--- a/core-groovy/pom.xml
+++ b/core-groovy/pom.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>core-groovy</artifactId>
     <version>1.0-SNAPSHOT</version>
@@ -116,5 +116,6 @@
         <spock-core.version>1.1-groovy-2.4</spock-core.version>
         <gmavenplus-plugin.version>1.6</gmavenplus-plugin.version>
     </properties>
+
 </project>
 
diff --git a/core-java-modules/core-java-10/pom.xml b/core-java-modules/core-java-10/pom.xml
index 7163619679..49ebbfb283 100644
--- a/core-java-modules/core-java-10/pom.xml
+++ b/core-java-modules/core-java-10/pom.xml
@@ -1,7 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung</groupId>
     <artifactId>core-java-10</artifactId>
     <version>0.1.0-SNAPSHOT</version>
     <name>core-java-10</name>
diff --git a/core-java-modules/core-java-11/pom.xml b/core-java-modules/core-java-11/pom.xml
index 81917b6397..5bebaae00d 100644
--- a/core-java-modules/core-java-11/pom.xml
+++ b/core-java-modules/core-java-11/pom.xml
@@ -1,9 +1,8 @@
-<project
-        xmlns="http://maven.apache.org/POM/4.0.0"
-        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-        xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung</groupId>
     <artifactId>core-java-11</artifactId>
     <version>0.1.0-SNAPSHOT</version>
     <name>core-java-11</name>
@@ -110,4 +109,5 @@
         <uberjar.name>benchmarks</uberjar.name>
         <jmh.version>1.22</jmh.version>
     </properties>
+
 </project>
diff --git a/core-java-modules/core-java-12/pom.xml b/core-java-modules/core-java-12/pom.xml
index 06c49a0021..171d3f6e73 100644
--- a/core-java-modules/core-java-12/pom.xml
+++ b/core-java-modules/core-java-12/pom.xml
@@ -1,9 +1,8 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0"
-    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung</groupId>
     <artifactId>core-java-12</artifactId>
     <version>0.1.0-SNAPSHOT</version>
     <name>core-java-12</name>
diff --git a/core-java-modules/core-java-8-2/pom.xml b/core-java-modules/core-java-8-2/pom.xml
index 269631e0dd..746755f7a9 100644
--- a/core-java-modules/core-java-8-2/pom.xml
+++ b/core-java-modules/core-java-8-2/pom.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0"
-    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>core-java-8-2</artifactId>
     <version>0.1.0-SNAPSHOT</version>
@@ -33,4 +33,5 @@
         <icu.version>64.2</icu.version>
         <assertj.version>3.12.2</assertj.version>
     </properties>
+
 </project>
diff --git a/core-java-modules/core-java-8/pom.xml b/core-java-modules/core-java-8/pom.xml
index 074359ae54..c2c84a5407 100644
--- a/core-java-modules/core-java-8/pom.xml
+++ b/core-java-modules/core-java-8/pom.xml
@@ -1,3 +1,4 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
@@ -76,4 +77,5 @@
         <!-- plugins -->
         <spring-boot-maven-plugin.version>2.0.4.RELEASE</spring-boot-maven-plugin.version>
     </properties>
+
 </project>
diff --git a/core-java-modules/core-java-9-improvements/pom.xml b/core-java-modules/core-java-9-improvements/pom.xml
index aee289c79f..9958bf9364 100644
--- a/core-java-modules/core-java-9-improvements/pom.xml
+++ b/core-java-modules/core-java-9-improvements/pom.xml
@@ -1,9 +1,10 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <artifactId>core-java-9</artifactId>
+    <artifactId>core-java-9-improvements</artifactId>
     <version>0.2-SNAPSHOT</version>
-    <name>core-java-9</name>
+    <name>core-java-9-improvements</name>
 
     <parent>
         <groupId>com.baeldung</groupId>
@@ -39,7 +40,7 @@
     </dependencies>
 
     <build>
-        <finalName>core-java-9</finalName>
+        <finalName>core-java-9-improvements</finalName>
         <plugins>
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
diff --git a/core-java-modules/core-java-9-jigsaw/pom.xml b/core-java-modules/core-java-9-jigsaw/pom.xml
index 8194ae9d00..ecb36c365d 100644
--- a/core-java-modules/core-java-9-jigsaw/pom.xml
+++ b/core-java-modules/core-java-9-jigsaw/pom.xml
@@ -1,9 +1,10 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>core-java-9-jigsaw</artifactId>
     <version>0.2-SNAPSHOT</version>
-    <name>core-java-9</name>
+    <name>core-java-9-jigsaw</name>
 
     <parent>
         <groupId>com.baeldung</groupId>
diff --git a/core-java-modules/core-java-9-new-features/pom.xml b/core-java-modules/core-java-9-new-features/pom.xml
index cfdbb285d4..9db1112f1d 100644
--- a/core-java-modules/core-java-9-new-features/pom.xml
+++ b/core-java-modules/core-java-9-new-features/pom.xml
@@ -1,9 +1,10 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>core-java-9-new-features</artifactId>
     <version>0.2-SNAPSHOT</version>
-    <name>core-java-9</name>
+    <name>core-java-9-new-features</name>
 
     <parent>
         <groupId>com.baeldung</groupId>
diff --git a/core-java-modules/core-java-9-streams/pom.xml b/core-java-modules/core-java-9-streams/pom.xml
index 6e167caf9c..99be29f2b0 100644
--- a/core-java-modules/core-java-9-streams/pom.xml
+++ b/core-java-modules/core-java-9-streams/pom.xml
@@ -1,3 +1,4 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
@@ -13,9 +14,6 @@
         <relativePath>../../parent-java</relativePath>
     </parent>
 
-    <dependencies>
-    </dependencies>
-
     <build>
         <finalName>core-java-9-streams</finalName>
         <resources>
@@ -26,6 +24,4 @@
         </resources>
     </build>
 
-    <properties>
-    </properties>
 </project>
diff --git a/core-java-modules/core-java-9/pom.xml b/core-java-modules/core-java-9/pom.xml
index aee289c79f..23a465caa1 100644
--- a/core-java-modules/core-java-9/pom.xml
+++ b/core-java-modules/core-java-9/pom.xml
@@ -1,5 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>core-java-9</artifactId>
     <version>0.2-SNAPSHOT</version>
diff --git a/core-java-modules/core-java-annotations/pom.xml b/core-java-modules/core-java-annotations/pom.xml
index 92b5afbd47..a97686a5b5 100644
--- a/core-java-modules/core-java-annotations/pom.xml
+++ b/core-java-modules/core-java-annotations/pom.xml
@@ -1,3 +1,4 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
diff --git a/core-java-modules/core-java-arrays-2/pom.xml b/core-java-modules/core-java-arrays-2/pom.xml
index a1da169f2f..3f6b7094bb 100644
--- a/core-java-modules/core-java-arrays-2/pom.xml
+++ b/core-java-modules/core-java-arrays-2/pom.xml
@@ -1,3 +1,4 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
@@ -39,7 +40,6 @@
     </build>
 
     <properties>
-
         <!-- util -->
         <commons-lang3.version>3.9</commons-lang3.version>
         <!-- testing -->
diff --git a/core-java-modules/core-java-arrays/pom.xml b/core-java-modules/core-java-arrays/pom.xml
index ca4e262ff9..20a835594f 100644
--- a/core-java-modules/core-java-arrays/pom.xml
+++ b/core-java-modules/core-java-arrays/pom.xml
@@ -1,3 +1,4 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
@@ -171,12 +172,12 @@
                         <argument>-Xmx300m</argument>
                         <argument>-XX:+UseParallelGC</argument>
                         <argument>-classpath</argument>
-                        <classpath />
+                        <classpath/>
                         <argument>com.baeldung.outofmemoryerror.OutOfMemoryGCLimitExceed</argument>
                     </arguments>
                 </configuration>
             </plugin>
-            
+
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-javadoc-plugin</artifactId>
@@ -237,7 +238,7 @@
                                     <executable>java</executable>
                                     <arguments>
                                         <argument>-classpath</argument>
-                                        <classpath />
+                                        <classpath/>
                                         <argument>org.openjdk.jmh.Main</argument>
                                         <argument>.*</argument>
                                     </arguments>
@@ -356,10 +357,9 @@
     </profiles>
 
     <properties>
-
         <!-- util -->
         <commons-lang3.version>3.9</commons-lang3.version>
-        
+
         <jmh-core.version>1.19</jmh-core.version>
         <jmh-generator-annprocess.version>1.19</jmh-generator-annprocess.version>
 
diff --git a/core-java-modules/core-java-collections-2/pom.xml b/core-java-modules/core-java-collections-2/pom.xml
index 217c1d9258..e0e7dd5c82 100644
--- a/core-java-modules/core-java-collections-2/pom.xml
+++ b/core-java-modules/core-java-collections-2/pom.xml
@@ -1,5 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>core-java-collections-2</artifactId>
     <name>core-java-collections-2</name>
@@ -54,4 +55,5 @@
         <junit.platform.version>1.2.0</junit.platform.version>
         <commons-exec.version>1.3</commons-exec.version>
     </properties>
+
 </project>
diff --git a/core-java-modules/core-java-collections-3/pom.xml b/core-java-modules/core-java-collections-3/pom.xml
index 84c7865e68..f94ff6f71f 100644
--- a/core-java-modules/core-java-collections-3/pom.xml
+++ b/core-java-modules/core-java-collections-3/pom.xml
@@ -1,5 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>core-java-collections-3</artifactId>
     <version>0.1.0-SNAPSHOT</version>
@@ -31,4 +32,5 @@
         <openjdk.jmh.version>1.19</openjdk.jmh.version>
         <assertj.version>3.11.1</assertj.version>
     </properties>
+
 </project>
diff --git a/core-java-modules/core-java-collections-array-list/pom.xml b/core-java-modules/core-java-collections-array-list/pom.xml
index 249103152a..cf7889fa58 100644
--- a/core-java-modules/core-java-collections-array-list/pom.xml
+++ b/core-java-modules/core-java-collections-array-list/pom.xml
@@ -1,5 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>core-java-collections-array-list</artifactId>
     <version>0.1.0-SNAPSHOT</version>
@@ -31,4 +32,5 @@
         <commons-collections4.version>4.1</commons-collections4.version>
         <assertj.version>3.11.1</assertj.version>
     </properties>
+
 </project>
diff --git a/core-java-modules/core-java-collections-list-2/pom.xml b/core-java-modules/core-java-collections-list-2/pom.xml
index 9652a7d79f..05b82a179b 100644
--- a/core-java-modules/core-java-collections-list-2/pom.xml
+++ b/core-java-modules/core-java-collections-list-2/pom.xml
@@ -1,5 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>core-java-collections-list-2</artifactId>
     <version>0.1.0-SNAPSHOT</version>
@@ -34,7 +35,8 @@
     </dependencies>
 
     <properties>
-        <commons-collections4.version>4.1</commons-collections4.version>    
+        <commons-collections4.version>4.1</commons-collections4.version>
         <assertj.version>3.11.1</assertj.version>
     </properties>
+
 </project>
diff --git a/core-java-modules/core-java-collections-list-3/pom.xml b/core-java-modules/core-java-collections-list-3/pom.xml
index dab5058cd3..ced8a732c1 100644
--- a/core-java-modules/core-java-collections-list-3/pom.xml
+++ b/core-java-modules/core-java-collections-list-3/pom.xml
@@ -1,5 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>core-java-collections-list-3</artifactId>
     <version>0.1.0-SNAPSHOT</version>
@@ -57,8 +58,9 @@
     <properties>
         <commons-collections4.version>4.1</commons-collections4.version>
         <assertj.version>3.11.1</assertj.version>
-		<trove4j.version>3.0.2</trove4j.version>
-		<fastutil.version>8.1.0</fastutil.version>
-		<colt.version>1.2.0</colt.version>
+        <trove4j.version>3.0.2</trove4j.version>
+        <fastutil.version>8.1.0</fastutil.version>
+        <colt.version>1.2.0</colt.version>
     </properties>
+
 </project>
diff --git a/core-java-modules/core-java-collections-list/pom.xml b/core-java-modules/core-java-collections-list/pom.xml
index c8e881110e..3227c94e78 100644
--- a/core-java-modules/core-java-collections-list/pom.xml
+++ b/core-java-modules/core-java-collections-list/pom.xml
@@ -1,5 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>core-java-collections-list</artifactId>
     <version>0.1.0-SNAPSHOT</version>
@@ -37,4 +38,5 @@
         <commons-lang3.version>3.8.1</commons-lang3.version>
         <assertj.version>3.11.1</assertj.version>
     </properties>
+
 </project>
diff --git a/core-java-modules/core-java-collections-set/pom.xml b/core-java-modules/core-java-collections-set/pom.xml
index 1dd1e06ca1..d21bbeef77 100644
--- a/core-java-modules/core-java-collections-set/pom.xml
+++ b/core-java-modules/core-java-collections-set/pom.xml
@@ -1,5 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>core-java-collections-set</artifactId>
     <version>0.1.0-SNAPSHOT</version>
@@ -35,4 +36,5 @@
         <commons-collections4.version>4.3</commons-collections4.version>
         <gson.version>2.8.5</gson.version>
     </properties>
+
 </project>
\ No newline at end of file
diff --git a/core-java-modules/core-java-collections/pom.xml b/core-java-modules/core-java-collections/pom.xml
index 62b42b53e7..c9cbe94a4f 100644
--- a/core-java-modules/core-java-collections/pom.xml
+++ b/core-java-modules/core-java-collections/pom.xml
@@ -1,5 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>core-java-collections</artifactId>
     <version>0.1.0-SNAPSHOT</version>
@@ -36,4 +37,5 @@
         <openjdk.jmh.version>1.19</openjdk.jmh.version>
         <assertj.version>3.11.1</assertj.version>
     </properties>
+
 </project>
diff --git a/core-java-modules/core-java-concurrency-2/pom.xml b/core-java-modules/core-java-concurrency-2/pom.xml
index 6b179a29c7..690fe97ae6 100644
--- a/core-java-modules/core-java-concurrency-2/pom.xml
+++ b/core-java-modules/core-java-concurrency-2/pom.xml
@@ -1,7 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung</groupId>
     <artifactId>core-java-concurrency-2</artifactId>
     <version>0.1.0-SNAPSHOT</version>
     <name>core-java-concurrency-2</name>
diff --git a/core-java-modules/core-java-concurrency-advanced-2/pom.xml b/core-java-modules/core-java-concurrency-advanced-2/pom.xml
index cad492b1ea..7e76219c4e 100644
--- a/core-java-modules/core-java-concurrency-advanced-2/pom.xml
+++ b/core-java-modules/core-java-concurrency-advanced-2/pom.xml
@@ -1,7 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung</groupId>
     <artifactId>core-java-concurrency-advanced-2</artifactId>
     <version>0.1.0-SNAPSHOT</version>
     <name>core-java-concurrency-advanced-2</name>
@@ -30,7 +30,7 @@
             <artifactId>jmh-generator-annprocess</artifactId>
             <version>${jmh-generator-annprocess.version}</version>
         </dependency>
-        
+
         <dependency>
             <groupId>org.assertj</groupId>
             <artifactId>assertj-core</artifactId>
@@ -52,7 +52,6 @@
     <properties>
         <jmh-core.version>1.19</jmh-core.version>
         <jmh-generator-annprocess.version>1.19</jmh-generator-annprocess.version>
-        
         <assertj.version>3.6.1</assertj.version>
     </properties>
 
diff --git a/core-java-modules/core-java-concurrency-advanced-3/pom.xml b/core-java-modules/core-java-concurrency-advanced-3/pom.xml
index 77b86d7d58..df9834181f 100644
--- a/core-java-modules/core-java-concurrency-advanced-3/pom.xml
+++ b/core-java-modules/core-java-concurrency-advanced-3/pom.xml
@@ -1,7 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0"
          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0
-    http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
 
     <modelVersion>4.0.0</modelVersion>
     <artifactId>core-java-concurrency-advanced-3</artifactId>
diff --git a/core-java-modules/core-java-concurrency-advanced/pom.xml b/core-java-modules/core-java-concurrency-advanced/pom.xml
index 4a9ee30d65..65ca811737 100644
--- a/core-java-modules/core-java-concurrency-advanced/pom.xml
+++ b/core-java-modules/core-java-concurrency-advanced/pom.xml
@@ -1,7 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung</groupId>
     <artifactId>core-java-concurrency-advanced</artifactId>
     <version>0.1.0-SNAPSHOT</version>
     <name>core-java-concurrency-advanced</name>
diff --git a/core-java-modules/core-java-concurrency-basic-2/pom.xml b/core-java-modules/core-java-concurrency-basic-2/pom.xml
index 396447ff75..0fee2c04ff 100644
--- a/core-java-modules/core-java-concurrency-basic-2/pom.xml
+++ b/core-java-modules/core-java-concurrency-basic-2/pom.xml
@@ -1,5 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>core-java-concurrency-basic-2</artifactId>
     <version>0.1.0-SNAPSHOT</version>
@@ -13,9 +14,6 @@
         <relativePath>../../parent-java</relativePath>
     </parent>
 
-    <dependencies>
-    </dependencies>
-
     <build>
         <finalName>core-java-concurrency-basic-2</finalName>
         <resources>
diff --git a/core-java-modules/core-java-concurrency-basic/pom.xml b/core-java-modules/core-java-concurrency-basic/pom.xml
index 93b8523eb4..9d9d2cb663 100644
--- a/core-java-modules/core-java-concurrency-basic/pom.xml
+++ b/core-java-modules/core-java-concurrency-basic/pom.xml
@@ -1,5 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>core-java-concurrency-basic</artifactId>
     <version>0.1.0-SNAPSHOT</version>
diff --git a/core-java-modules/core-java-concurrency-collections/pom.xml b/core-java-modules/core-java-concurrency-collections/pom.xml
index 0d3a6042ac..f731b1acd1 100644
--- a/core-java-modules/core-java-concurrency-collections/pom.xml
+++ b/core-java-modules/core-java-concurrency-collections/pom.xml
@@ -1,5 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>core-java-concurrency-collections</artifactId>
     <version>0.1.0-SNAPSHOT</version>
diff --git a/core-java-modules/core-java-date-operations/pom.xml b/core-java-modules/core-java-date-operations/pom.xml
index dcfe893a46..251d3f85a2 100644
--- a/core-java-modules/core-java-date-operations/pom.xml
+++ b/core-java-modules/core-java-date-operations/pom.xml
@@ -1,38 +1,40 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0"
-	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
-	<modelVersion>4.0.0</modelVersion>
-	<artifactId>core-java-date-operations</artifactId>
-	<version>${project.parent.version}</version>
-	<packaging>jar</packaging>
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <artifactId>core-java-date-operations</artifactId>
+    <version>${project.parent.version}</version>
+    <packaging>jar</packaging>
 
-	<parent>
-		<groupId>com.baeldung</groupId>
-		<artifactId>parent-java</artifactId>
-		<version>0.0.1-SNAPSHOT</version>
-		<relativePath>../../parent-java</relativePath>
-	</parent>
+    <parent>
+        <groupId>com.baeldung</groupId>
+        <artifactId>parent-java</artifactId>
+        <version>0.0.1-SNAPSHOT</version>
+        <relativePath>../../parent-java</relativePath>
+    </parent>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.apache.commons</groupId>
+            <artifactId>commons-lang3</artifactId>
+            <version>${commons-lang3.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>joda-time</groupId>
+            <artifactId>joda-time</artifactId>
+            <version>${joda-time.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>com.darwinsys</groupId>
+            <artifactId>hirondelle-date4j</artifactId>
+            <version>${hirondelle-date4j.version}</version>
+        </dependency>
+    </dependencies>
+
+    <properties>
+        <joda-time.version>2.10</joda-time.version>
+        <hirondelle-date4j.version>1.5.1</hirondelle-date4j.version>
+    </properties>
 
-	<dependencies>
-		<dependency>
-			<groupId>org.apache.commons</groupId>
-			<artifactId>commons-lang3</artifactId>
-			<version>${commons-lang3.version}</version>
-		</dependency>
-		<dependency>
-			<groupId>joda-time</groupId>
-			<artifactId>joda-time</artifactId>
-			<version>${joda-time.version}</version>
-		</dependency>
-		<dependency>
-			<groupId>com.darwinsys</groupId>
-			<artifactId>hirondelle-date4j</artifactId>
-			<version>${hirondelle-date4j.version}</version>
-		</dependency>
-	</dependencies>
-	<properties>
-		<joda-time.version>2.10</joda-time.version>
-		<hirondelle-date4j.version>1.5.1</hirondelle-date4j.version>
-	</properties>
 </project>
\ No newline at end of file
diff --git a/core-java-modules/core-java-datetime-computations/pom.xml b/core-java-modules/core-java-datetime-computations/pom.xml
index 934df8018f..af6b110296 100644
--- a/core-java-modules/core-java-datetime-computations/pom.xml
+++ b/core-java-modules/core-java-datetime-computations/pom.xml
@@ -1,5 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>core-java-datetime-computations</artifactId>
     <version>${project.parent.version}</version>
@@ -68,4 +69,5 @@
         <maven.compiler.source>1.9</maven.compiler.source>
         <maven.compiler.target>1.9</maven.compiler.target>
     </properties>
+
 </project>
diff --git a/core-java-modules/core-java-datetime-conversion/pom.xml b/core-java-modules/core-java-datetime-conversion/pom.xml
index a93eca00af..e2b143aa88 100644
--- a/core-java-modules/core-java-datetime-conversion/pom.xml
+++ b/core-java-modules/core-java-datetime-conversion/pom.xml
@@ -1,5 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>core-java-datetime-conversion</artifactId>
     <version>${project.parent.version}</version>
@@ -64,7 +65,8 @@
         <joda-time.version>2.10</joda-time.version>
         <!-- testing -->
         <assertj.version>3.6.1</assertj.version>
-		<maven.compiler.source>1.9</maven.compiler.source>
+        <maven.compiler.source>1.9</maven.compiler.source>
         <maven.compiler.target>1.9</maven.compiler.target>
     </properties>
+
 </project>
diff --git a/core-java-modules/core-java-datetime-java8/pom.xml b/core-java-modules/core-java-datetime-java8/pom.xml
index 72d51b5f10..34323fe76c 100644
--- a/core-java-modules/core-java-datetime-java8/pom.xml
+++ b/core-java-modules/core-java-datetime-java8/pom.xml
@@ -1,5 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>core-java-datetime-java8</artifactId>
     <version>${project.parent.version}</version>
@@ -61,10 +62,11 @@
     </build>
 
     <properties>
-		<maven.compiler.source>1.9</maven.compiler.source>
+        <maven.compiler.source>1.9</maven.compiler.source>
         <maven.compiler.target>1.9</maven.compiler.target>
         <joda-time.version>2.10</joda-time.version>
         <!-- testing -->
         <assertj.version>3.6.1</assertj.version>
     </properties>
+
 </project>
diff --git a/core-java-modules/core-java-datetime-string/pom.xml b/core-java-modules/core-java-datetime-string/pom.xml
index b4e7aff524..dd793f7fe8 100644
--- a/core-java-modules/core-java-datetime-string/pom.xml
+++ b/core-java-modules/core-java-datetime-string/pom.xml
@@ -1,5 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>core-java-datetime-string</artifactId>
     <version>${project.parent.version}</version>
@@ -77,7 +78,8 @@
         <joda-time.version>2.10</joda-time.version>
         <!-- testing -->
         <assertj.version>3.6.1</assertj.version>
-		<maven.compiler.source>1.9</maven.compiler.source>
+        <maven.compiler.source>1.9</maven.compiler.source>
         <maven.compiler.target>1.9</maven.compiler.target>
     </properties>
+
 </project>
diff --git a/core-java-modules/core-java-exceptions/pom.xml b/core-java-modules/core-java-exceptions/pom.xml
index da5ec76622..303a09d5b7 100644
--- a/core-java-modules/core-java-exceptions/pom.xml
+++ b/core-java-modules/core-java-exceptions/pom.xml
@@ -2,8 +2,8 @@
 <project xmlns="http://maven.apache.org/POM/4.0.0"
          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
-    <groupId>com.baeldung.exceptions</groupId>
     <modelVersion>4.0.0</modelVersion>
+    <groupId>com.baeldung.exceptions</groupId>
     <artifactId>core-java-exceptions</artifactId>
     <version>0.1.0-SNAPSHOT</version>
     <name>core-java-exceptions</name>
diff --git a/core-java-modules/core-java-function/pom.xml b/core-java-modules/core-java-function/pom.xml
index 22b2fd9bda..0e61f73c84 100644
--- a/core-java-modules/core-java-function/pom.xml
+++ b/core-java-modules/core-java-function/pom.xml
@@ -1,3 +1,4 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
@@ -37,4 +38,5 @@
         <!-- testing -->
         <assertj.version>3.6.1</assertj.version>
     </properties>
+
 </project>
diff --git a/core-java-modules/core-java-io-2/pom.xml b/core-java-modules/core-java-io-2/pom.xml
index dd0f8931c3..0c271737d9 100644
--- a/core-java-modules/core-java-io-2/pom.xml
+++ b/core-java-modules/core-java-io-2/pom.xml
@@ -1,5 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>core-java-io-2</artifactId>
     <version>0.1.0-SNAPSHOT</version>
diff --git a/core-java-modules/core-java-io-apis/pom.xml b/core-java-modules/core-java-io-apis/pom.xml
index 0eab844681..6eb869c537 100644
--- a/core-java-modules/core-java-io-apis/pom.xml
+++ b/core-java-modules/core-java-io-apis/pom.xml
@@ -1,5 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>core-java-io-apis</artifactId>
     <version>0.1.0-SNAPSHOT</version>
diff --git a/core-java-modules/core-java-io-conversions/pom.xml b/core-java-modules/core-java-io-conversions/pom.xml
index 186dde2721..c3a1b2fe2d 100644
--- a/core-java-modules/core-java-io-conversions/pom.xml
+++ b/core-java-modules/core-java-io-conversions/pom.xml
@@ -1,5 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>core-java-io-conversions</artifactId>
     <version>0.1.0-SNAPSHOT</version>
diff --git a/core-java-modules/core-java-io/pom.xml b/core-java-modules/core-java-io/pom.xml
index 0244011f78..1c568a610d 100644
--- a/core-java-modules/core-java-io/pom.xml
+++ b/core-java-modules/core-java-io/pom.xml
@@ -1,5 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>core-java-io</artifactId>
     <version>0.1.0-SNAPSHOT</version>
@@ -72,7 +73,7 @@
                         <argument>-Xmx300m</argument>
                         <argument>-XX:+UseParallelGC</argument>
                         <argument>-classpath</argument>
-                        <classpath />
+                        <classpath/>
                         <argument>com.baeldung.outofmemoryerror.OutOfMemoryGCLimitExceed</argument>
                     </arguments>
                 </configuration>
@@ -86,7 +87,7 @@
                     <target>${maven.compiler.target}</target>
                 </configuration>
             </plugin>
-            
+
             <plugin>
                 <!-- Build an executable JAR -->
                 <groupId>org.apache.maven.plugins</groupId>
@@ -126,7 +127,7 @@
                                     <executable>java</executable>
                                     <arguments>
                                         <argument>-classpath</argument>
-                                        <classpath />
+                                        <classpath/>
                                         <argument>org.openjdk.jmh.Main</argument>
                                         <argument>.*</argument>
                                     </arguments>
diff --git a/core-java-modules/core-java-jar/pom.xml b/core-java-modules/core-java-jar/pom.xml
index cd86479d72..a3e8941622 100644
--- a/core-java-modules/core-java-jar/pom.xml
+++ b/core-java-modules/core-java-jar/pom.xml
@@ -1,3 +1,4 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
@@ -63,7 +64,7 @@
     </dependencies>
 
     <build>
-        <finalName>core-java</finalName>
+        <finalName>core-java-jar</finalName>
         <resources>
             <resource>
                 <directory>src/main/resources</directory>
@@ -195,12 +196,12 @@
                         <argument>-Xmx300m</argument>
                         <argument>-XX:+UseParallelGC</argument>
                         <argument>-classpath</argument>
-                        <classpath />
+                        <classpath/>
                         <argument>com.baeldung.outofmemoryerror.OutOfMemoryGCLimitExceed</argument>
                     </arguments>
                 </configuration>
             </plugin>
-            
+
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-javadoc-plugin</artifactId>
@@ -261,7 +262,7 @@
                                     <executable>java</executable>
                                     <arguments>
                                         <argument>-classpath</argument>
-                                        <classpath />
+                                        <classpath/>
                                         <argument>org.openjdk.jmh.Main</argument>
                                         <argument>.*</argument>
                                     </arguments>
@@ -383,7 +384,7 @@
         <!-- util -->
         <unix4j.version>0.4</unix4j.version>
         <grep4j.version>1.8.7</grep4j.version>
-      
+
         <!-- testing -->
         <assertj-core.version>3.10.0</assertj-core.version>
 
@@ -397,4 +398,5 @@
         <spring-boot-maven-plugin.version>2.0.3.RELEASE</spring-boot-maven-plugin.version>
         <exec-maven-plugin.version>1.6.0</exec-maven-plugin.version>
     </properties>
+
 </project>
diff --git a/core-java-modules/core-java-jndi/pom.xml b/core-java-modules/core-java-jndi/pom.xml
index 7f621af21d..13504886d6 100644
--- a/core-java-modules/core-java-jndi/pom.xml
+++ b/core-java-modules/core-java-jndi/pom.xml
@@ -3,7 +3,6 @@
          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-
     <groupId>com.baeldung.jndi</groupId>
     <artifactId>core-java-jndi</artifactId>
     <version>1.0-SNAPSHOT</version>
@@ -63,4 +62,5 @@
             </plugin>
         </plugins>
     </build>
+
 </project>
diff --git a/core-java-modules/core-java-jpms/decoupling-pattern1/consumermodule/pom.xml b/core-java-modules/core-java-jpms/decoupling-pattern1/consumermodule/pom.xml
index 059075318a..ddf52d8fef 100644
--- a/core-java-modules/core-java-jpms/decoupling-pattern1/consumermodule/pom.xml
+++ b/core-java-modules/core-java-jpms/decoupling-pattern1/consumermodule/pom.xml
@@ -1,24 +1,25 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>consumermodule</artifactId>
-    <packaging>jar</packaging>
     <version>1.0</version>
-    
+    <packaging>jar</packaging>
+
     <parent>
         <groupId>com.baeldung.decoupling-pattern1</groupId>
         <artifactId>decoupling-pattern1</artifactId>
         <version>1.0</version>
     </parent>
-    
+
     <dependencies>
         <dependency>
             <groupId>com.baeldung.servicemodule</groupId>
             <artifactId>servicemodule</artifactId>
-            <version>1.0</version>           
+            <version>1.0</version>
         </dependency>
     </dependencies>
-    
+
     <build>
         <plugins>
             <plugin>
@@ -27,4 +28,5 @@
             </plugin>
         </plugins>
     </build>
+
 </project>
diff --git a/core-java-modules/core-java-jpms/decoupling-pattern1/pom.xml b/core-java-modules/core-java-jpms/decoupling-pattern1/pom.xml
index 282723e0a0..78a9d1eaad 100644
--- a/core-java-modules/core-java-jpms/decoupling-pattern1/pom.xml
+++ b/core-java-modules/core-java-jpms/decoupling-pattern1/pom.xml
@@ -1,18 +1,18 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<project xmlns="http://maven.apache.org/POM/4.0.0" 
-    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <groupId>com.baeldung.decoupling-pattern1</groupId>
     <artifactId>decoupling-pattern1</artifactId>
     <version>1.0</version>
     <packaging>pom</packaging>
-    
+
     <modules>
         <module>servicemodule</module>
         <module>consumermodule</module>
     </modules>
-    
+
     <build>
         <pluginManagement>
             <plugins>
@@ -28,8 +28,9 @@
             </plugins>
         </pluginManagement>
     </build>
-    
+
     <properties>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
     </properties>
+
 </project>
\ No newline at end of file
diff --git a/core-java-modules/core-java-jpms/decoupling-pattern1/servicemodule/pom.xml b/core-java-modules/core-java-jpms/decoupling-pattern1/servicemodule/pom.xml
index 1bda70f867..ece85fd5dc 100644
--- a/core-java-modules/core-java-jpms/decoupling-pattern1/servicemodule/pom.xml
+++ b/core-java-modules/core-java-jpms/decoupling-pattern1/servicemodule/pom.xml
@@ -1,17 +1,17 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    
     <groupId>com.baeldung.servicemodule</groupId>
     <artifactId>servicemodule</artifactId>
     <packaging>jar</packaging>
-    
+
     <parent>
         <groupId>com.baeldung.decoupling-pattern1</groupId>
         <artifactId>decoupling-pattern1</artifactId>
         <version>1.0</version>
     </parent>
-    
+
     <build>
         <plugins>
             <plugin>
@@ -20,5 +20,5 @@
             </plugin>
         </plugins>
     </build>
-   
+
 </project>
\ No newline at end of file
diff --git a/core-java-modules/core-java-jpms/decoupling-pattern2/consumermodule/pom.xml b/core-java-modules/core-java-jpms/decoupling-pattern2/consumermodule/pom.xml
index 09ca44d9be..734774af0e 100644
--- a/core-java-modules/core-java-jpms/decoupling-pattern2/consumermodule/pom.xml
+++ b/core-java-modules/core-java-jpms/decoupling-pattern2/consumermodule/pom.xml
@@ -8,8 +8,8 @@
     <version>1.0</version>
 
     <parent>
-        <artifactId>com.baeldung.decoupling-pattern2</artifactId>
         <groupId>decoupling-pattern2</groupId>
+        <artifactId>com.baeldung.decoupling-pattern2</artifactId>
         <version>1.0-SNAPSHOT</version>
     </parent>
 
diff --git a/core-java-modules/core-java-jpms/decoupling-pattern2/pom.xml b/core-java-modules/core-java-jpms/decoupling-pattern2/pom.xml
index f8c05d40b8..2f84c69fd6 100644
--- a/core-java-modules/core-java-jpms/decoupling-pattern2/pom.xml
+++ b/core-java-modules/core-java-jpms/decoupling-pattern2/pom.xml
@@ -3,7 +3,6 @@
          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-
     <groupId>com.baeldung.decoupling-pattern2</groupId>
     <artifactId>decoupling-pattern2</artifactId>
     <version>1.0-SNAPSHOT</version>
diff --git a/core-java-modules/core-java-jpms/decoupling-pattern2/providermodule/pom.xml b/core-java-modules/core-java-jpms/decoupling-pattern2/providermodule/pom.xml
index ceeda9049c..5ec36c581e 100644
--- a/core-java-modules/core-java-jpms/decoupling-pattern2/providermodule/pom.xml
+++ b/core-java-modules/core-java-jpms/decoupling-pattern2/providermodule/pom.xml
@@ -2,15 +2,14 @@
 <project xmlns="http://maven.apache.org/POM/4.0.0"
          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
-
     <modelVersion>4.0.0</modelVersion>
     <groupId>com.baeldung.providermodule</groupId>
     <artifactId>providermodule</artifactId>
     <version>1.0</version>
 
     <parent>
-        <artifactId>com.baeldung.decoupling-pattern2</artifactId>
         <groupId>decoupling-pattern2</groupId>
+        <artifactId>com.baeldung.decoupling-pattern2</artifactId>
         <version>1.0-SNAPSHOT</version>
     </parent>
 
diff --git a/core-java-modules/core-java-jpms/decoupling-pattern2/servicemodule/pom.xml b/core-java-modules/core-java-jpms/decoupling-pattern2/servicemodule/pom.xml
index 861f06f089..9249ea5d89 100644
--- a/core-java-modules/core-java-jpms/decoupling-pattern2/servicemodule/pom.xml
+++ b/core-java-modules/core-java-jpms/decoupling-pattern2/servicemodule/pom.xml
@@ -8,8 +8,8 @@
     <version>1.0</version>
 
     <parent>
-        <artifactId>>com.baeldung.decoupling-pattern2</artifactId>
         <groupId>decoupling-pattern2</groupId>
+        <artifactId>>com.baeldung.decoupling-pattern2</artifactId>
         <version>1.0-SNAPSHOT</version>
     </parent>
 
diff --git a/core-java-modules/core-java-jvm/pom.xml b/core-java-modules/core-java-jvm/pom.xml
index 74960820d7..61c31ce82f 100644
--- a/core-java-modules/core-java-jvm/pom.xml
+++ b/core-java-modules/core-java-jvm/pom.xml
@@ -1,10 +1,11 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>core-java-jvm</artifactId>
     <version>0.1.0-SNAPSHOT</version>
-    <packaging>jar</packaging>
     <name>core-java-jvm</name>
+    <packaging>jar</packaging>
 
     <parent>
         <groupId>com.baeldung</groupId>
@@ -48,7 +49,6 @@
             <scope>system</scope>
             <systemPath>${java.home}/../lib/tools.jar</systemPath>
         </dependency>
-
     </dependencies>
 
     <properties>
@@ -58,4 +58,5 @@
         <esapi.version>2.1.0.1</esapi.version>
         <sun.tools.version>1.8.0</sun.tools.version>
     </properties>
+
 </project>
diff --git a/core-java-modules/core-java-lambdas/pom.xml b/core-java-modules/core-java-lambdas/pom.xml
index 433db0a9ca..fbcd9d5870 100644
--- a/core-java-modules/core-java-lambdas/pom.xml
+++ b/core-java-modules/core-java-lambdas/pom.xml
@@ -2,24 +2,25 @@
 <project xmlns="http://maven.apache.org/POM/4.0.0"
          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
-  <modelVersion>4.0.0</modelVersion>
-  <artifactId>core-java-lambdas</artifactId>
-  <version>0.1.0-SNAPSHOT</version>
-  <name>core-java-lambdas</name>
-  <packaging>jar</packaging>
+    <modelVersion>4.0.0</modelVersion>
+    <artifactId>core-java-lambdas</artifactId>
+    <version>0.1.0-SNAPSHOT</version>
+    <name>core-java-lambdas</name>
+    <packaging>jar</packaging>
 
-  <parent>
-    <groupId>com.baeldung</groupId>
-    <artifactId>parent-java</artifactId>
-    <version>0.0.1-SNAPSHOT</version>
-    <relativePath>../../parent-java</relativePath>
-  </parent>
+    <parent>
+        <groupId>com.baeldung</groupId>
+        <artifactId>parent-java</artifactId>
+        <version>0.0.1-SNAPSHOT</version>
+        <relativePath>../../parent-java</relativePath>
+    </parent>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.apache.commons</groupId>
+            <artifactId>commons-lang3</artifactId>
+            <version>${commons-lang3.version}</version>
+        </dependency>
+    </dependencies>
 
-  <dependencies>
-    <dependency>
-      <groupId>org.apache.commons</groupId>
-      <artifactId>commons-lang3</artifactId>
-      <version>${commons-lang3.version}</version>
-    </dependency>
-  </dependencies>
 </project>
\ No newline at end of file
diff --git a/core-java-modules/core-java-lang-2/pom.xml b/core-java-modules/core-java-lang-2/pom.xml
index 88e92aaf22..5657e64b17 100644
--- a/core-java-modules/core-java-lang-2/pom.xml
+++ b/core-java-modules/core-java-lang-2/pom.xml
@@ -1,3 +1,4 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
@@ -18,7 +19,7 @@
             <groupId>commons-beanutils</groupId>
             <artifactId>commons-beanutils</artifactId>
             <version>1.9.4</version>
-        </dependency>  
+        </dependency>
         <dependency>
             <groupId>org.openjdk.jmh</groupId>
             <artifactId>jmh-generator-annprocess</artifactId>
diff --git a/core-java-modules/core-java-lang-math/pom.xml b/core-java-modules/core-java-lang-math/pom.xml
index f884aca3a9..671d5630d2 100644
--- a/core-java-modules/core-java-lang-math/pom.xml
+++ b/core-java-modules/core-java-lang-math/pom.xml
@@ -1,3 +1,4 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
@@ -37,4 +38,5 @@
         <!-- testing -->
         <assertj.version>3.6.1</assertj.version>
     </properties>
+
 </project>
diff --git a/core-java-modules/core-java-lang-oop-2/pom.xml b/core-java-modules/core-java-lang-oop-2/pom.xml
index 5bca2f0dbf..01bacab0b9 100644
--- a/core-java-modules/core-java-lang-oop-2/pom.xml
+++ b/core-java-modules/core-java-lang-oop-2/pom.xml
@@ -1,5 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>core-java-lang-oop-2</artifactId>
     <version>0.1.0-SNAPSHOT</version>
@@ -13,7 +14,7 @@
         <relativePath>../../parent-java</relativePath>
     </parent>
 
-	<dependencies>
+    <dependencies>
         <!-- test scoped -->
         <dependency>
             <groupId>org.assertj</groupId>
@@ -27,8 +28,8 @@
             <version>${equalsverifier.version}</version>
             <scope>test</scope>
         </dependency>
-	</dependencies>
-    
+    </dependencies>
+
     <build>
         <finalName>core-java-lang-oop-2</finalName>
         <resources>
diff --git a/core-java-modules/core-java-lang-oop-3/pom.xml b/core-java-modules/core-java-lang-oop-3/pom.xml
index 1caf17bef3..70939c32c9 100644
--- a/core-java-modules/core-java-lang-oop-3/pom.xml
+++ b/core-java-modules/core-java-lang-oop-3/pom.xml
@@ -1,5 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>core-java-lang-oop-3</artifactId>
     <version>0.1.0-SNAPSHOT</version>
diff --git a/core-java-modules/core-java-lang-oop-4/pom.xml b/core-java-modules/core-java-lang-oop-4/pom.xml
index 72662a8ea4..9e138afddf 100644
--- a/core-java-modules/core-java-lang-oop-4/pom.xml
+++ b/core-java-modules/core-java-lang-oop-4/pom.xml
@@ -1,5 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>core-java-lang-oop-4</artifactId>
     <version>0.1.0-SNAPSHOT</version>
diff --git a/core-java-modules/core-java-lang-oop/pom.xml b/core-java-modules/core-java-lang-oop/pom.xml
index bdd9857dfa..a628a4d6c2 100644
--- a/core-java-modules/core-java-lang-oop/pom.xml
+++ b/core-java-modules/core-java-lang-oop/pom.xml
@@ -1,5 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>core-java-lang-oop</artifactId>
     <version>0.1.0-SNAPSHOT</version>
diff --git a/core-java-modules/core-java-lang-operators/pom.xml b/core-java-modules/core-java-lang-operators/pom.xml
index 81865552dd..03720122cb 100644
--- a/core-java-modules/core-java-lang-operators/pom.xml
+++ b/core-java-modules/core-java-lang-operators/pom.xml
@@ -1,3 +1,4 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0"
          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
diff --git a/core-java-modules/core-java-lang-syntax-2/pom.xml b/core-java-modules/core-java-lang-syntax-2/pom.xml
index 98eea99fc0..961cf022cb 100644
--- a/core-java-modules/core-java-lang-syntax-2/pom.xml
+++ b/core-java-modules/core-java-lang-syntax-2/pom.xml
@@ -1,3 +1,4 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
@@ -22,4 +23,5 @@
             </resource>
         </resources>
     </build>
+
 </project>
diff --git a/core-java-modules/core-java-lang-syntax/pom.xml b/core-java-modules/core-java-lang-syntax/pom.xml
index f4549b689d..c47a1011b7 100644
--- a/core-java-modules/core-java-lang-syntax/pom.xml
+++ b/core-java-modules/core-java-lang-syntax/pom.xml
@@ -1,3 +1,4 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
diff --git a/core-java-modules/core-java-lang/pom.xml b/core-java-modules/core-java-lang/pom.xml
index 10b0526177..5b8fe4133b 100644
--- a/core-java-modules/core-java-lang/pom.xml
+++ b/core-java-modules/core-java-lang/pom.xml
@@ -1,3 +1,4 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
diff --git a/core-java-modules/core-java-networking-2/pom.xml b/core-java-modules/core-java-networking-2/pom.xml
index c3a5891066..2e2eb51809 100644
--- a/core-java-modules/core-java-networking-2/pom.xml
+++ b/core-java-modules/core-java-networking-2/pom.xml
@@ -1,5 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-      xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>core-java-networking-2</artifactId>
     <name>core-java-networking-2</name>
@@ -44,4 +45,5 @@
         <javax.mail.version>1.5.0-b01</javax.mail.version>
         <async-http-client.version>2.4.5</async-http-client.version>
     </properties>
+
 </project>
diff --git a/core-java-modules/core-java-networking/pom.xml b/core-java-modules/core-java-networking/pom.xml
index cd84d2a27c..f5b39625f0 100644
--- a/core-java-modules/core-java-networking/pom.xml
+++ b/core-java-modules/core-java-networking/pom.xml
@@ -1,3 +1,4 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
@@ -27,5 +28,6 @@
 
     <properties>
         <springframework.spring-web.version>4.3.4.RELEASE</springframework.spring-web.version>
-    </properties>	
+    </properties>
+
 </project>
diff --git a/core-java-modules/core-java-nio-2/pom.xml b/core-java-modules/core-java-nio-2/pom.xml
index c1fa423b38..cd5c87d44e 100644
--- a/core-java-modules/core-java-nio-2/pom.xml
+++ b/core-java-modules/core-java-nio-2/pom.xml
@@ -1,6 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0"
-	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>core-java-nio-2</artifactId>
     <version>0.1.0-SNAPSHOT</version>
diff --git a/core-java-modules/core-java-nio/pom.xml b/core-java-modules/core-java-nio/pom.xml
index da8759a956..bc7801c398 100644
--- a/core-java-modules/core-java-nio/pom.xml
+++ b/core-java-modules/core-java-nio/pom.xml
@@ -1,6 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0"
-	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>core-java-nio</artifactId>
     <version>0.1.0-SNAPSHOT</version>
diff --git a/core-java-modules/core-java-optional/pom.xml b/core-java-modules/core-java-optional/pom.xml
index 3c556012da..9ab41d5a82 100644
--- a/core-java-modules/core-java-optional/pom.xml
+++ b/core-java-modules/core-java-optional/pom.xml
@@ -1,16 +1,18 @@
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>core-java-optional</artifactId>
     <version>0.1.0-SNAPSHOT</version>
-    <packaging>jar</packaging>
     <name>core-java-optional</name>
-	
+    <packaging>jar</packaging>
+
     <parent>
         <groupId>com.baeldung.core-java-modules</groupId>
         <artifactId>core-java-modules</artifactId>
         <version>1.0.0-SNAPSHOT</version>
     </parent>
-  
+
     <dependencies>
         <dependency>
             <groupId>org.hibernate</groupId>
@@ -69,4 +71,5 @@
         <assertj.version>3.10.0</assertj.version>
         <rest-assured.version>3.1.1</rest-assured.version>
     </properties>
+
 </project>
\ No newline at end of file
diff --git a/core-java-modules/core-java-os/pom.xml b/core-java-modules/core-java-os/pom.xml
index f09b62ebf2..b934701067 100644
--- a/core-java-modules/core-java-os/pom.xml
+++ b/core-java-modules/core-java-os/pom.xml
@@ -1,7 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung</groupId>
     <artifactId>core-java-os</artifactId>
     <version>0.1.0-SNAPSHOT</version>
     <name>core-java-os</name>
@@ -80,7 +80,7 @@
         <!-- util -->
         <commons-collections4.version>4.1</commons-collections4.version>
         <collections-generic.version>4.01</collections-generic.version>
-    
+
         <!-- testing -->
         <assertj.version>3.6.1</assertj.version>
         <asspectj.version>1.8.9</asspectj.version>
@@ -90,4 +90,5 @@
         <unix4j.version>0.4</unix4j.version>
         <grep4j.version>1.8.7</grep4j.version>
     </properties>
+
 </project>
diff --git a/core-java-modules/core-java-perf/pom.xml b/core-java-modules/core-java-perf/pom.xml
index a6e20f198d..18e05c9741 100644
--- a/core-java-modules/core-java-perf/pom.xml
+++ b/core-java-modules/core-java-perf/pom.xml
@@ -1,3 +1,4 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
diff --git a/core-java-modules/core-java-security-manager/pom.xml b/core-java-modules/core-java-security-manager/pom.xml
index f5be1639da..52f1554ace 100644
--- a/core-java-modules/core-java-security-manager/pom.xml
+++ b/core-java-modules/core-java-security-manager/pom.xml
@@ -1,10 +1,12 @@
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>core-java-security-manager</artifactId>
     <version>0.1.0-SNAPSHOT</version>
-    <packaging>jar</packaging>
     <name>core-java-security-manager</name>
-	
+    <packaging>jar</packaging>
+
     <parent>
         <groupId>com.baeldung.core-java-modules</groupId>
         <artifactId>core-java-modules</artifactId>
diff --git a/core-java-modules/core-java-security/pom.xml b/core-java-modules/core-java-security/pom.xml
index e882fd823e..cefbd3a8a7 100644
--- a/core-java-modules/core-java-security/pom.xml
+++ b/core-java-modules/core-java-security/pom.xml
@@ -1,3 +1,4 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
@@ -35,14 +36,12 @@
     </dependencies>
 
     <properties>
-
         <!-- util -->
         <bouncycastle.version>1.60</bouncycastle.version>
         <commons-codec.version>1.11</commons-codec.version>
 
         <!-- testing -->
         <assertj-core.version>3.10.0</assertj-core.version>
-      
     </properties>
 
 </project>
diff --git a/core-java-modules/core-java-streams-2/pom.xml b/core-java-modules/core-java-streams-2/pom.xml
index 20c028edaa..58f13d658c 100644
--- a/core-java-modules/core-java-streams-2/pom.xml
+++ b/core-java-modules/core-java-streams-2/pom.xml
@@ -1,5 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>core-java-streams-2</artifactId>
     <version>1.0</version>
@@ -43,11 +44,12 @@
             <scope>test</scope>
         </dependency>
     </dependencies>
-	
+
     <properties>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <maven.compiler.source>1.9</maven.compiler.source>
         <maven.compiler.target>1.9</maven.compiler.target>
         <assertj.version>3.11.1</assertj.version>
     </properties>
+
 </project>
\ No newline at end of file
diff --git a/core-java-modules/core-java-streams-3/pom.xml b/core-java-modules/core-java-streams-3/pom.xml
index b5b21a4368..02503d3cab 100644
--- a/core-java-modules/core-java-streams-3/pom.xml
+++ b/core-java-modules/core-java-streams-3/pom.xml
@@ -1,3 +1,4 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
@@ -50,4 +51,5 @@
         <!-- plugins -->
         <maven-surefire-plugin.version>2.22.1</maven-surefire-plugin.version>
     </properties>
+
 </project>
diff --git a/core-java-modules/core-java-streams/pom.xml b/core-java-modules/core-java-streams/pom.xml
index 9b68c8dded..56fdd523fe 100644
--- a/core-java-modules/core-java-streams/pom.xml
+++ b/core-java-modules/core-java-streams/pom.xml
@@ -1,3 +1,4 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
@@ -114,8 +115,9 @@
         <!-- testing -->
         <assertj.version>3.11.1</assertj.version>
         <asspectj.version>1.8.9</asspectj.version>
-		<maven-compiler-plugin.version>3.1</maven-compiler-plugin.version>
+        <maven-compiler-plugin.version>3.1</maven-compiler-plugin.version>
         <maven.compiler.source>1.8</maven.compiler.source>
         <maven.compiler.target>1.8</maven.compiler.target>
     </properties>
+
 </project>
diff --git a/core-java-modules/core-java-string-algorithms-2/pom.xml b/core-java-modules/core-java-string-algorithms-2/pom.xml
index 5b0e710bb8..a67f1df6d2 100644
--- a/core-java-modules/core-java-string-algorithms-2/pom.xml
+++ b/core-java-modules/core-java-string-algorithms-2/pom.xml
@@ -1,10 +1,11 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>core-java-string-algorithms-2</artifactId>
     <version>0.1.0-SNAPSHOT</version>
-    <packaging>jar</packaging>
     <name>core-java-string-algorithms-2</name>
+    <packaging>jar</packaging>
 
     <parent>
         <groupId>com.baeldung</groupId>
diff --git a/core-java-modules/core-java-string-algorithms/pom.xml b/core-java-modules/core-java-string-algorithms/pom.xml
index f1b7499b6d..6cae320f1d 100644
--- a/core-java-modules/core-java-string-algorithms/pom.xml
+++ b/core-java-modules/core-java-string-algorithms/pom.xml
@@ -1,10 +1,11 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>core-java-string-algorithms</artifactId>
     <version>0.1.0-SNAPSHOT</version>
-    <packaging>jar</packaging>
     <name>core-java-string-algorithms</name>
+    <packaging>jar</packaging>
 
     <parent>
         <groupId>com.baeldung</groupId>
diff --git a/core-java-modules/core-java-string-apis/pom.xml b/core-java-modules/core-java-string-apis/pom.xml
index 7d9d888fa1..6d0fd4c6fd 100644
--- a/core-java-modules/core-java-string-apis/pom.xml
+++ b/core-java-modules/core-java-string-apis/pom.xml
@@ -1,10 +1,11 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>core-java-string-apis</artifactId>
     <version>0.1.0-SNAPSHOT</version>
-    <packaging>jar</packaging>
     <name>core-java-string-apis</name>
+    <packaging>jar</packaging>
 
     <parent>
         <groupId>com.baeldung</groupId>
diff --git a/core-java-modules/core-java-string-conversions-2/pom.xml b/core-java-modules/core-java-string-conversions-2/pom.xml
index 396d836e6b..58b00b757a 100644
--- a/core-java-modules/core-java-string-conversions-2/pom.xml
+++ b/core-java-modules/core-java-string-conversions-2/pom.xml
@@ -1,10 +1,11 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>core-java-string-conversions-2</artifactId>
     <version>0.1.0-SNAPSHOT</version>
-    <packaging>jar</packaging>
     <name>core-java-string-conversions-2</name>
+    <packaging>jar</packaging>
 
     <parent>
         <groupId>com.baeldung</groupId>
@@ -41,7 +42,6 @@
                 <filtering>true</filtering>
             </resource>
         </resources>
-
     </build>
 
 </project>
diff --git a/core-java-modules/core-java-string-conversions/pom.xml b/core-java-modules/core-java-string-conversions/pom.xml
index 9c968b7f1c..e3d6036e53 100644
--- a/core-java-modules/core-java-string-conversions/pom.xml
+++ b/core-java-modules/core-java-string-conversions/pom.xml
@@ -1,10 +1,11 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>core-java-string-conversions</artifactId>
     <version>0.1.0-SNAPSHOT</version>
-    <packaging>jar</packaging>
     <name>core-java-string-conversions</name>
+    <packaging>jar</packaging>
 
     <parent>
         <groupId>com.baeldung</groupId>
diff --git a/core-java-modules/core-java-string-operations-2/pom.xml b/core-java-modules/core-java-string-operations-2/pom.xml
index 95aeec8fcb..bd1a34f89f 100644
--- a/core-java-modules/core-java-string-operations-2/pom.xml
+++ b/core-java-modules/core-java-string-operations-2/pom.xml
@@ -1,10 +1,11 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>core-java-string-operations-2</artifactId>
     <version>0.1.0-SNAPSHOT</version>
-    <packaging>jar</packaging>
     <name>core-java-string-operations-2</name>
+    <packaging>jar</packaging>
 
     <parent>
         <groupId>com.baeldung</groupId>
diff --git a/core-java-modules/core-java-string-operations/pom.xml b/core-java-modules/core-java-string-operations/pom.xml
index ebbbade7a4..a1921c029f 100644
--- a/core-java-modules/core-java-string-operations/pom.xml
+++ b/core-java-modules/core-java-string-operations/pom.xml
@@ -1,10 +1,11 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>core-java-string-operations</artifactId>
     <version>0.1.0-SNAPSHOT</version>
-    <packaging>jar</packaging>
     <name>core-java-string-operations</name>
+    <packaging>jar</packaging>
 
     <parent>
         <groupId>com.baeldung</groupId>
diff --git a/core-java-modules/core-java-strings/pom.xml b/core-java-modules/core-java-strings/pom.xml
index 6a80886549..9dfe48527f 100644
--- a/core-java-modules/core-java-strings/pom.xml
+++ b/core-java-modules/core-java-strings/pom.xml
@@ -1,10 +1,11 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>core-java-strings</artifactId>
     <version>0.1.0-SNAPSHOT</version>
-    <packaging>jar</packaging>
     <name>core-java-strings</name>
+    <packaging>jar</packaging>
 
     <parent>
         <groupId>com.baeldung</groupId>
diff --git a/core-java-modules/core-java-sun/pom.xml b/core-java-modules/core-java-sun/pom.xml
index 7774d1f9b3..03b6646fec 100644
--- a/core-java-modules/core-java-sun/pom.xml
+++ b/core-java-modules/core-java-sun/pom.xml
@@ -1,5 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>core-java-sun</artifactId>
     <version>0.1.0-SNAPSHOT</version>
@@ -31,7 +32,7 @@
     </dependencies>
 
     <build>
-        <finalName>core-java</finalName>
+        <finalName>core-java-sun</finalName>
         <resources>
             <resource>
                 <directory>src/main/resources</directory>
@@ -64,7 +65,7 @@
                         <argument>-Xmx300m</argument>
                         <argument>-XX:+UseParallelGC</argument>
                         <argument>-classpath</argument>
-                        <classpath />
+                        <classpath/>
                         <argument>com.baeldung.outofmemoryerror.OutOfMemoryGCLimitExceed</argument>
                     </arguments>
                 </configuration>
@@ -94,7 +95,7 @@
                                     <executable>java</executable>
                                     <arguments>
                                         <argument>-classpath</argument>
-                                        <classpath />
+                                        <classpath/>
                                         <argument>org.openjdk.jmh.Main</argument>
                                         <argument>.*</argument>
                                     </arguments>
diff --git a/core-java-modules/core-java-text/pom.xml b/core-java-modules/core-java-text/pom.xml
index 43b0df6309..640b90764a 100644
--- a/core-java-modules/core-java-text/pom.xml
+++ b/core-java-modules/core-java-text/pom.xml
@@ -1,3 +1,4 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
diff --git a/core-java-modules/core-java-time-measurements/pom.xml b/core-java-modules/core-java-time-measurements/pom.xml
index 0ff3787051..9377b04690 100644
--- a/core-java-modules/core-java-time-measurements/pom.xml
+++ b/core-java-modules/core-java-time-measurements/pom.xml
@@ -1,19 +1,20 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0"
-	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
-	<modelVersion>4.0.0</modelVersion>
-	<groupId>com.baeldung.exception.numberformat</groupId>
-	<artifactId>core-java-time-measurements</artifactId>
-	<version>0.0.1-SNAPSHOT</version>
-	<packaging>jar</packaging>
-	<name>core-java-time-measurements</name>
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <groupId>com.baeldung.exception.numberformat</groupId>
+    <artifactId>core-java-time-measurements</artifactId>
+    <version>0.0.1-SNAPSHOT</version>
+    <name>core-java-time-measurements</name>
+    <packaging>jar</packaging>
 
-	<parent>
-		<groupId>com.baeldung</groupId>
-		<artifactId>parent-java</artifactId>
-		<version>0.0.1-SNAPSHOT</version>
-		<relativePath>../../parent-java</relativePath>
-	</parent>
+    <parent>
+        <groupId>com.baeldung</groupId>
+        <artifactId>parent-java</artifactId>
+        <version>0.0.1-SNAPSHOT</version>
+        <relativePath>../../parent-java</relativePath>
+    </parent>
 
     <dependencies>
         <dependency>
@@ -99,4 +100,5 @@
         <!-- plugins -->
         <maven-surefire-plugin.version>2.22.1</maven-surefire-plugin.version>
     </properties>
+
 </project>
diff --git a/core-java-modules/core-java/pom.xml b/core-java-modules/core-java/pom.xml
index 9d4bee081e..341363f8ed 100644
--- a/core-java-modules/core-java/pom.xml
+++ b/core-java-modules/core-java/pom.xml
@@ -1,3 +1,4 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
@@ -195,12 +196,12 @@
                         <argument>-Xmx300m</argument>
                         <argument>-XX:+UseParallelGC</argument>
                         <argument>-classpath</argument>
-                        <classpath />
+                        <classpath/>
                         <argument>com.baeldung.outofmemoryerror.OutOfMemoryGCLimitExceed</argument>
                     </arguments>
                 </configuration>
             </plugin>
-            
+
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-javadoc-plugin</artifactId>
@@ -261,7 +262,7 @@
                                     <executable>java</executable>
                                     <arguments>
                                         <argument>-classpath</argument>
-                                        <classpath />
+                                        <classpath/>
                                         <argument>org.openjdk.jmh.Main</argument>
                                         <argument>.*</argument>
                                     </arguments>
@@ -383,7 +384,7 @@
         <!-- util -->
         <unix4j.version>0.4</unix4j.version>
         <grep4j.version>1.8.7</grep4j.version>
-      
+
         <!-- testing -->
         <assertj-core.version>3.10.0</assertj-core.version>
 
@@ -397,4 +398,5 @@
         <spring-boot-maven-plugin.version>2.0.3.RELEASE</spring-boot-maven-plugin.version>
         <exec-maven-plugin.version>1.6.0</exec-maven-plugin.version>
     </properties>
+
 </project>
diff --git a/core-java-modules/multimodulemavenproject/daomodule/pom.xml b/core-java-modules/multimodulemavenproject/daomodule/pom.xml
index e98c48aa76..79c2628ea4 100644
--- a/core-java-modules/multimodulemavenproject/daomodule/pom.xml
+++ b/core-java-modules/multimodulemavenproject/daomodule/pom.xml
@@ -1,17 +1,18 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <groupId>com.baeldung.daomodule</groupId>
     <artifactId>daomodule</artifactId>
     <version>1.0</version>
     <packaging>jar</packaging>
-    
+
     <parent>
         <groupId>com.baeldung.multimodulemavenproject</groupId>
         <artifactId>multimodulemavenproject</artifactId>
         <version>1.0</version>
     </parent>
-    
+
     <build>
         <plugins>
             <plugin>
@@ -20,9 +21,10 @@
             </plugin>
         </plugins>
     </build>
-    
+
     <properties>
         <maven.compiler.source>9</maven.compiler.source>
         <maven.compiler.target>9</maven.compiler.target>
     </properties>
+
 </project>
\ No newline at end of file
diff --git a/core-java-modules/multimodulemavenproject/entitymodule/pom.xml b/core-java-modules/multimodulemavenproject/entitymodule/pom.xml
index b90a7ed068..2cc789ffbb 100644
--- a/core-java-modules/multimodulemavenproject/entitymodule/pom.xml
+++ b/core-java-modules/multimodulemavenproject/entitymodule/pom.xml
@@ -1,5 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <groupId>com.baeldung.entitymodule</groupId>
     <artifactId>entitymodule</artifactId>
@@ -11,7 +12,7 @@
         <artifactId>multimodulemavenproject</artifactId>
         <version>1.0</version>
     </parent>
-    
+
     <build>
         <plugins>
             <plugin>
@@ -20,10 +21,10 @@
             </plugin>
         </plugins>
     </build>
-    
-     <properties>
+
+    <properties>
         <maven.compiler.source>9</maven.compiler.source>
         <maven.compiler.target>9</maven.compiler.target>
     </properties>
-    
+
 </project>
\ No newline at end of file
diff --git a/core-java-modules/multimodulemavenproject/mainappmodule/pom.xml b/core-java-modules/multimodulemavenproject/mainappmodule/pom.xml
index 1f44a1690c..fa2d92d67f 100644
--- a/core-java-modules/multimodulemavenproject/mainappmodule/pom.xml
+++ b/core-java-modules/multimodulemavenproject/mainappmodule/pom.xml
@@ -1,5 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <groupId>com.baeldung.mainappmodule</groupId>
     <artifactId>mainappmodule</artifactId>
@@ -11,7 +12,7 @@
         <artifactId>multimodulemavenproject</artifactId>
         <version>1.0</version>
     </parent>
-    
+
     <dependencies>
         <dependency>
             <groupId>com.baeldung.entitymodule</groupId>
@@ -29,7 +30,7 @@
             <version>1.0</version>
         </dependency>
     </dependencies>
-    
+
     <build>
         <plugins>
             <plugin>
@@ -38,9 +39,10 @@
             </plugin>
         </plugins>
     </build>
-    
+
     <properties>
         <maven.compiler.source>9</maven.compiler.source>
         <maven.compiler.target>9</maven.compiler.target>
     </properties>
+
 </project>
\ No newline at end of file
diff --git a/core-java-modules/multimodulemavenproject/pom.xml b/core-java-modules/multimodulemavenproject/pom.xml
index ad347a4179..1d4aebf32e 100644
--- a/core-java-modules/multimodulemavenproject/pom.xml
+++ b/core-java-modules/multimodulemavenproject/pom.xml
@@ -1,26 +1,27 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <groupId>com.baeldung.multimodulemavenproject</groupId>
     <artifactId>multimodulemavenproject</artifactId>
     <version>1.0</version>
-    <packaging>pom</packaging>
     <name>multimodulemavenproject</name>
-    
+    <packaging>pom</packaging>
+
     <parent>
-        <artifactId>parent-modules</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-modules</artifactId>
         <version>1.0.0-SNAPSHOT</version>
         <relativePath>../../</relativePath>
     </parent>
-    
+
     <modules>
         <module>entitymodule</module>
         <module>daomodule</module>
         <module>userdaomodule</module>
         <module>mainappmodule</module>
     </modules>
-    
+
     <dependencyManagement>
         <dependencies>
             <dependency>
@@ -37,7 +38,7 @@
             </dependency>
         </dependencies>
     </dependencyManagement>
-    
+
     <build>
         <pluginManagement>
             <plugins>
@@ -46,18 +47,17 @@
                     <artifactId>maven-compiler-plugin</artifactId>
                     <version>3.8.0</version>
                     <configuration>
-                        <configuration>
-                            <source>1.9</source>
-                            <target>1.9</target>
-                        </configuration>
+                        <source>1.9</source>
+                        <target>1.9</target>
                     </configuration>
                 </plugin>
             </plugins>
         </pluginManagement>
     </build>
-    
+
     <properties>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <assertj-core.version>3.12.2</assertj-core.version>
     </properties>
+
 </project>
diff --git a/core-java-modules/multimodulemavenproject/userdaomodule/pom.xml b/core-java-modules/multimodulemavenproject/userdaomodule/pom.xml
index d3543d5864..19012708cf 100644
--- a/core-java-modules/multimodulemavenproject/userdaomodule/pom.xml
+++ b/core-java-modules/multimodulemavenproject/userdaomodule/pom.xml
@@ -1,5 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <groupId>com.baeldung.userdaomodule</groupId>
     <artifactId>userdaomodule</artifactId>
@@ -11,7 +12,7 @@
         <artifactId>multimodulemavenproject</artifactId>
         <version>1.0</version>
     </parent>
-    
+
     <dependencies>
         <dependency>
             <groupId>com.baeldung.entitymodule</groupId>
@@ -24,7 +25,7 @@
             <version>1.0</version>
         </dependency>
     </dependencies>
-    
+
     <build>
         <plugins>
             <plugin>
@@ -33,10 +34,10 @@
             </plugin>
         </plugins>
     </build>
-    
+
     <properties>
         <maven.compiler.source>9</maven.compiler.source>
         <maven.compiler.target>9</maven.compiler.target>
     </properties>
-    
+
 </project>
\ No newline at end of file
diff --git a/core-java-modules/pom.xml b/core-java-modules/pom.xml
index 16ec19835a..dcc98d77f6 100644
--- a/core-java-modules/pom.xml
+++ b/core-java-modules/pom.xml
@@ -1,15 +1,15 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <groupId>com.baeldung.core-java-modules</groupId>
     <artifactId>core-java-modules</artifactId>
     <name>core-java-modules</name>
     <packaging>pom</packaging>
-    
+
     <parent>
-        <artifactId>parent-modules</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-modules</artifactId>
         <version>1.0.0-SNAPSHOT</version>
     </parent>
 
@@ -21,5 +21,5 @@
         <module>core-java-security-manager</module>
         <module>core-java-date-operations</module>
     </modules>
-    
+
 </project>
diff --git a/core-java-modules/pre-jpms/pom.xml b/core-java-modules/pre-jpms/pom.xml
index f37daed0a5..cb23427138 100644
--- a/core-java-modules/pre-jpms/pom.xml
+++ b/core-java-modules/pre-jpms/pom.xml
@@ -1,72 +1,73 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0"
-	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
-	<modelVersion>4.0.0</modelVersion>
-	<artifactId>pre-jpms</artifactId>
-	<version>0.0.1-SNAPSHOT</version>
-	<packaging>jar</packaging>
-	<name>pre-jpms</name>
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <artifactId>pre-jpms</artifactId>
+    <version>0.0.1-SNAPSHOT</version>
+    <name>pre-jpms</name>
+    <packaging>jar</packaging>
 
     <parent>
-        <artifactId>parent-modules</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-modules</artifactId>
         <version>1.0.0-SNAPSHOT</version>
         <relativePath>../../</relativePath>
     </parent>
 
-	<dependencies>
-		<dependency>
-			<groupId>org.slf4j</groupId>
-			<artifactId>slf4j-api</artifactId>
-			<version>${org.slf4j.version}</version>
-		</dependency>
-	</dependencies>
+    <dependencies>
+        <dependency>
+            <groupId>org.slf4j</groupId>
+            <artifactId>slf4j-api</artifactId>
+            <version>${org.slf4j.version}</version>
+        </dependency>
+    </dependencies>
 
-	<build>
-		<finalName>pre-jpms</finalName>
-		<plugins>
-			<plugin>
-				<groupId>org.apache.maven.plugins</groupId>
-				<artifactId>maven-compiler-plugin</artifactId>
-				<version>3.8.0</version>
-				<configuration>
-					<source>1.8</source>
-					<target>1.8</target>
-				</configuration>
-			</plugin>
-			<plugin>
-				<groupId>org.apache.maven.plugins</groupId>
-				<artifactId>maven-dependency-plugin</artifactId>
-				<version>3.1.1</version>
-				<executions>
-					<execution>
-						<id>copy-dependencies</id>
-						<phase>package</phase>
-						<goals>
-							<goal>copy-dependencies</goal>
-						</goals>
-						<configuration>
-							<outputDirectory>
-								${project.build.directory}/dependency-jars/
-							</outputDirectory>
-						</configuration>
-					</execution>
-				</executions>
-			</plugin>
-			<plugin>
-				<groupId>org.apache.maven.plugins</groupId>
-				<artifactId>maven-jar-plugin</artifactId>
-				<configuration>
-					<archive>
-						<manifest>
-							<mainClass>com.baeldung.prejpms.App</mainClass>
-							<addClasspath>true</addClasspath>
-							<classpathPrefix>dependency-jars/</classpathPrefix>
-						</manifest>
-					</archive>
-				</configuration>
-			</plugin>
-		</plugins>
-	</build>
+    <build>
+        <finalName>pre-jpms</finalName>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-compiler-plugin</artifactId>
+                <version>3.8.0</version>
+                <configuration>
+                    <source>1.8</source>
+                    <target>1.8</target>
+                </configuration>
+            </plugin>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-dependency-plugin</artifactId>
+                <version>3.1.1</version>
+                <executions>
+                    <execution>
+                        <id>copy-dependencies</id>
+                        <phase>package</phase>
+                        <goals>
+                            <goal>copy-dependencies</goal>
+                        </goals>
+                        <configuration>
+                            <outputDirectory>
+                                ${project.build.directory}/dependency-jars/
+                            </outputDirectory>
+                        </configuration>
+                    </execution>
+                </executions>
+            </plugin>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-jar-plugin</artifactId>
+                <configuration>
+                    <archive>
+                        <manifest>
+                            <mainClass>com.baeldung.prejpms.App</mainClass>
+                            <addClasspath>true</addClasspath>
+                            <classpathPrefix>dependency-jars/</classpathPrefix>
+                        </manifest>
+                    </archive>
+                </configuration>
+            </plugin>
+        </plugins>
+    </build>
 
 </project>
diff --git a/core-kotlin/pom.xml b/core-kotlin/pom.xml
index e4d243360a..63a6d8035e 100644
--- a/core-kotlin/pom.xml
+++ b/core-kotlin/pom.xml
@@ -80,8 +80,8 @@
         <junit.vintage.version>5.2.0</junit.vintage.version>
         <assertj.version>3.10.0</assertj.version>
         <fuel.version>1.15.0</fuel.version>
-		<kovenant.version>3.3.0</kovenant.version>
-		<injekt-core.version>1.16.1</injekt-core.version>
+        <kovenant.version>3.3.0</kovenant.version>
+        <injekt-core.version>1.16.1</injekt-core.version>
     </properties>
 
 </project>
diff --git a/core-scala/pom.xml b/core-scala/pom.xml
index 343f21484a..d6793cf4c6 100644
--- a/core-scala/pom.xml
+++ b/core-scala/pom.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>core-scala</artifactId>
     <version>1.0-SNAPSHOT</version>
diff --git a/couchbase/pom.xml b/couchbase/pom.xml
index fc40749c61..f4e98b32ba 100644
--- a/couchbase/pom.xml
+++ b/couchbase/pom.xml
@@ -1,13 +1,12 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung</groupId>
     <artifactId>couchbase</artifactId>
     <version>0.1-SNAPSHOT</version>
     <name>couchbase</name>
-    <description>Couchbase Tutorials</description>
     <packaging>jar</packaging>
+    <description>Couchbase Tutorials</description>
 
     <parent>
         <groupId>com.baeldung</groupId>
diff --git a/custom-pmd/pom.xml b/custom-pmd/pom.xml
index 9964bf2bb4..601eedf08f 100644
--- a/custom-pmd/pom.xml
+++ b/custom-pmd/pom.xml
@@ -1,5 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <groupId>org.baeldung.pmd</groupId>
     <artifactId>custom-pmd</artifactId>
@@ -7,10 +8,10 @@
     <name>custom-pmd</name>
     <packaging>jar</packaging>
     <url>http://maven.apache.org</url>
-    
+
     <parent>
-        <artifactId>parent-modules</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-modules</artifactId>
         <version>1.0.0-SNAPSHOT</version>
     </parent>
 
diff --git a/dagger/pom.xml b/dagger/pom.xml
index 80a3e961af..528a5383c6 100644
--- a/dagger/pom.xml
+++ b/dagger/pom.xml
@@ -1,13 +1,13 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>dagger</artifactId>
     <name>dagger</name>
 
     <parent>
-        <artifactId>parent-modules</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-modules</artifactId>
         <version>1.0.0-SNAPSHOT</version>
     </parent>
 
diff --git a/data-structures/pom.xml b/data-structures/pom.xml
index 4958598234..e8f4628062 100644
--- a/data-structures/pom.xml
+++ b/data-structures/pom.xml
@@ -1,5 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>data-structures</artifactId>
     <version>0.0.1-SNAPSHOT</version>
diff --git a/ddd/pom.xml b/ddd/pom.xml
index 24410e9751..508bccdbf2 100644
--- a/ddd/pom.xml
+++ b/ddd/pom.xml
@@ -1,5 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <groupId>com.baeldung.ddd</groupId>
     <artifactId>ddd</artifactId>
@@ -8,8 +9,8 @@
     <description>DDD series examples</description>
 
     <parent>
-        <artifactId>parent-boot-2</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-2</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../parent-boot-2</relativePath>
     </parent>
@@ -34,7 +35,7 @@
         <dependency>
             <groupId>org.junit.platform</groupId>
             <artifactId>junit-platform-launcher</artifactId>
-            <version>${junit-platform.version}</version>            
+            <version>${junit-platform.version}</version>
             <scope>test</scope>
         </dependency>
         <dependency>
@@ -84,7 +85,7 @@
 
     <properties>
         <joda-money.version>1.0.1</joda-money.version>
-        <spring-boot.version>2.0.6.RELEASE</spring-boot.version>        
+        <spring-boot.version>2.0.6.RELEASE</spring-boot.version>
     </properties>
-	
+
 </project>
\ No newline at end of file
diff --git a/deeplearning4j/pom.xml b/deeplearning4j/pom.xml
index a8663865e0..0e84fa1516 100644
--- a/deeplearning4j/pom.xml
+++ b/deeplearning4j/pom.xml
@@ -1,5 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <groupId>com.baeldung.deeplearning4j</groupId>
     <artifactId>deeplearning4j</artifactId>
diff --git a/disruptor/pom.xml b/disruptor/pom.xml
index 213331f25c..94be78fad6 100644
--- a/disruptor/pom.xml
+++ b/disruptor/pom.xml
@@ -1,5 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>disruptor</artifactId>
     <version>0.1.0-SNAPSHOT</version>
@@ -115,7 +116,7 @@
     <properties>
         <!-- util -->
         <disruptor.version>3.3.6</disruptor.version>
-        <!-- testing -->        
+        <!-- testing -->
         <maven-shade-plugin.version>2.4.3</maven-shade-plugin.version>
         <maven-jar-plugin.version>3.0.2</maven-jar-plugin.version>
         <onejar-maven-plugin.version>1.4.4</onejar-maven-plugin.version>
diff --git a/dozer/pom.xml b/dozer/pom.xml
index c781962d83..e307354603 100644
--- a/dozer/pom.xml
+++ b/dozer/pom.xml
@@ -1,5 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>dozer</artifactId>
     <version>1.0</version>
diff --git a/drools/pom.xml b/drools/pom.xml
index b5cfc7d6dc..b4421ff2e3 100644
--- a/drools/pom.xml
+++ b/drools/pom.xml
@@ -1,10 +1,10 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>drools</artifactId>
     <name>drools</name>
-    
+
     <parent>
         <groupId>com.baeldung</groupId>
         <artifactId>parent-spring-4</artifactId>
diff --git a/dubbo/pom.xml b/dubbo/pom.xml
index 947175b6a0..9a7aceb9e5 100644
--- a/dubbo/pom.xml
+++ b/dubbo/pom.xml
@@ -1,12 +1,13 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>dubbo</artifactId>
     <name>dubbo</name>
 
     <parent>
-        <artifactId>parent-modules</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-modules</artifactId>
         <version>1.0.0-SNAPSHOT</version>
     </parent>
 
diff --git a/ethereum/pom.xml b/ethereum/pom.xml
index 148909e787..6fc31208d2 100644
--- a/ethereum/pom.xml
+++ b/ethereum/pom.xml
@@ -1,3 +1,4 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
@@ -6,8 +7,8 @@
     <name>ethereum</name>
 
     <parent>
-        <artifactId>parent-spring-5</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-spring-5</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../parent-spring-5</relativePath>
     </parent>
diff --git a/feign/pom.xml b/feign/pom.xml
index d2fa334270..6dc8e7bafa 100644
--- a/feign/pom.xml
+++ b/feign/pom.xml
@@ -1,10 +1,10 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://maven.apache.org/POM/4.0.0"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <groupId>com.baeldung.feign</groupId>
     <artifactId>feign</artifactId>
-	<name>feign</name>
+    <name>feign</name>
 
     <parent>
         <groupId>com.baeldung</groupId>
diff --git a/flyway-cdi-extension/pom.xml b/flyway-cdi-extension/pom.xml
index 49bd6bd9fd..8f7d058db7 100644
--- a/flyway-cdi-extension/pom.xml
+++ b/flyway-cdi-extension/pom.xml
@@ -50,10 +50,10 @@
     </dependencies>
 
     <properties>
-		<cdi-api.version>2.0.SP1</cdi-api.version>
-		<weld-se-core.version>3.0.5.Final</weld-se-core.version>
-		<flyway-core.version>5.1.4</flyway-core.version>
-		<tomcat-jdbc.version>8.5.33</tomcat-jdbc.version>
-		<javax.annotation-api.version>1.3.2</javax.annotation-api.version>
+        <cdi-api.version>2.0.SP1</cdi-api.version>
+        <weld-se-core.version>3.0.5.Final</weld-se-core.version>
+        <flyway-core.version>5.1.4</flyway-core.version>
+        <tomcat-jdbc.version>8.5.33</tomcat-jdbc.version>
+        <javax.annotation-api.version>1.3.2</javax.annotation-api.version>
     </properties>
 </project>
diff --git a/geotools/pom.xml b/geotools/pom.xml
index 17beded326..71489bdf94 100644
--- a/geotools/pom.xml
+++ b/geotools/pom.xml
@@ -1,49 +1,50 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0"
-	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
-	<modelVersion>4.0.0</modelVersion>
-	<artifactId>geotools</artifactId>
-	<version>0.0.1-SNAPSHOT</version>
-	<name>geotools</name>
-	<packaging>jar</packaging>
-	<url>http://maven.apache.org</url>
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <artifactId>geotools</artifactId>
+    <version>0.0.1-SNAPSHOT</version>
+    <name>geotools</name>
+    <packaging>jar</packaging>
+    <url>http://maven.apache.org</url>
 
-	<parent>
-		<groupId>com.baeldung</groupId>
-		<artifactId>parent-modules</artifactId>
-		<version>1.0.0-SNAPSHOT</version>
-	</parent>
+    <parent>
+        <groupId>com.baeldung</groupId>
+        <artifactId>parent-modules</artifactId>
+        <version>1.0.0-SNAPSHOT</version>
+    </parent>
 
-	<dependencies>
-		<dependency>
-			<groupId>org.geotools</groupId>
-			<artifactId>gt-shapefile</artifactId>
-			<version>${geotools-shapefile.version}</version>
-		</dependency>
-		<dependency>
-			<groupId>org.geotools</groupId>
-			<artifactId>gt-epsg-hsql</artifactId>
-			<version>${geotools.version}</version>
-		</dependency>
-		<dependency>
-			<groupId>org.geotools</groupId>
-			<artifactId>gt-swing</artifactId>
-			<version>${geotools-swing.version}</version>
-		</dependency>
-	</dependencies>
+    <dependencies>
+        <dependency>
+            <groupId>org.geotools</groupId>
+            <artifactId>gt-shapefile</artifactId>
+            <version>${geotools-shapefile.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.geotools</groupId>
+            <artifactId>gt-epsg-hsql</artifactId>
+            <version>${geotools.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.geotools</groupId>
+            <artifactId>gt-swing</artifactId>
+            <version>${geotools-swing.version}</version>
+        </dependency>
+    </dependencies>
 
-	<repositories>
-		<repository>
-			<id>osgeo</id>
-			<name>Open Source Geospatial Foundation Repository</name>
-			<url>http://download.osgeo.org/webdav/geotools/</url>
-		</repository>
-	</repositories>
+    <repositories>
+        <repository>
+            <id>osgeo</id>
+            <name>Open Source Geospatial Foundation Repository</name>
+            <url>http://download.osgeo.org/webdav/geotools/</url>
+        </repository>
+    </repositories>
 
-	<properties>
-		<geotools.version>15.2</geotools.version>
-		<geotools-swing.version>15.2</geotools-swing.version>
-		<geotools-shapefile.version>15.2</geotools-shapefile.version>
-	</properties>
+    <properties>
+        <geotools.version>15.2</geotools.version>
+        <geotools-swing.version>15.2</geotools-swing.version>
+        <geotools-shapefile.version>15.2</geotools-shapefile.version>
+    </properties>
 
 </project>
diff --git a/google-cloud/pom.xml b/google-cloud/pom.xml
index ec53b78070..15f7f5c824 100644
--- a/google-cloud/pom.xml
+++ b/google-cloud/pom.xml
@@ -1,12 +1,12 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>google-cloud</artifactId>
     <version>0.1-SNAPSHOT</version>
     <name>google-cloud</name>
-    <description>Google Cloud Tutorials</description>
     <packaging>jar</packaging>
+    <description>Google Cloud Tutorials</description>
 
     <parent>
         <groupId>com.baeldung</groupId>
diff --git a/google-web-toolkit/pom.xml b/google-web-toolkit/pom.xml
index 8a7cb87701..e79b43c5e5 100644
--- a/google-web-toolkit/pom.xml
+++ b/google-web-toolkit/pom.xml
@@ -1,125 +1,124 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0"
-	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
+    <!-- POM file generated with GWT webAppCreator -->
+    <modelVersion>4.0.0</modelVersion>
+    <artifactId>google-web-toolkit</artifactId>
+    <version>1.0-SNAPSHOT</version>
+    <name>google-web-toolkit</name>
+    <packaging>war</packaging>
 
-	<!-- POM file generated with GWT webAppCreator -->
-	<modelVersion>4.0.0</modelVersion>
-	<artifactId>google-web-toolkit</artifactId>
-	<version>1.0-SNAPSHOT</version>
-	<name>google-web-toolkit</name>
-	<packaging>war</packaging>
-	
     <parent>
         <groupId>com.baeldung</groupId>
         <artifactId>parent-modules</artifactId>
         <version>1.0.0-SNAPSHOT</version>
     </parent>
 
-	<dependencyManagement>
-		<dependencies>
-			<!-- ensure all GWT deps use the same version (unless overridden) -->
-			<dependency>
-				<groupId>com.google.gwt</groupId>
-				<artifactId>gwt</artifactId>
-				<version>${gwt.version}</version>
-				<type>pom</type>
-				<scope>import</scope>
-			</dependency>
-		</dependencies>
-	</dependencyManagement>
+    <dependencyManagement>
+        <dependencies>
+            <!-- ensure all GWT deps use the same version (unless overridden) -->
+            <dependency>
+                <groupId>com.google.gwt</groupId>
+                <artifactId>gwt</artifactId>
+                <version>${gwt.version}</version>
+                <type>pom</type>
+                <scope>import</scope>
+            </dependency>
+        </dependencies>
+    </dependencyManagement>
 
-	<dependencies>
-		<dependency>
-			<groupId>com.google.gwt</groupId>
-			<artifactId>gwt-servlet</artifactId>
-			<scope>runtime</scope>
-		</dependency>
-		<dependency>
-			<groupId>com.google.gwt</groupId>
-			<artifactId>gwt-user</artifactId>
-			<scope>provided</scope>
-		</dependency>
-		<dependency>
-			<groupId>com.google.gwt</groupId>
-			<artifactId>gwt-dev</artifactId>
-			<scope>provided</scope>
-		</dependency>
-		<dependency>
-			<groupId>junit</groupId>
-			<artifactId>junit</artifactId>
-			<version>${junit.version}</version>
-			<scope>test</scope>
-		</dependency>
-	</dependencies>
+    <dependencies>
+        <dependency>
+            <groupId>com.google.gwt</groupId>
+            <artifactId>gwt-servlet</artifactId>
+            <scope>runtime</scope>
+        </dependency>
+        <dependency>
+            <groupId>com.google.gwt</groupId>
+            <artifactId>gwt-user</artifactId>
+            <scope>provided</scope>
+        </dependency>
+        <dependency>
+            <groupId>com.google.gwt</groupId>
+            <artifactId>gwt-dev</artifactId>
+            <scope>provided</scope>
+        </dependency>
+        <dependency>
+            <groupId>junit</groupId>
+            <artifactId>junit</artifactId>
+            <version>${junit.version}</version>
+            <scope>test</scope>
+        </dependency>
+    </dependencies>
 
-	<build>
-		<!-- Output classes directly into the webapp, so that IDEs and "mvn process-classes" 
-			update them in DevMode -->
-		<outputDirectory>${project.build.directory}/${project.build.finalName}/WEB-INF/classes</outputDirectory>
+    <build>
+        <!-- Output classes directly into the webapp, so that IDEs and "mvn process-classes"
+            update them in DevMode -->
+        <outputDirectory>${project.build.directory}/${project.build.finalName}/WEB-INF/classes</outputDirectory>
 
-		<plugins>
+        <plugins>
 
-			<!-- GWT Maven Plugin -->
-			<plugin>
-				<groupId>net.ltgt.gwt.maven</groupId>
-				<artifactId>gwt-maven-plugin</artifactId>
-				<version>1.0-rc-8</version>
-				<executions>
-					<execution>
-						<goals>
-							<goal>compile</goal>
-							<goal>test</goal>
-						</goals>
-					</execution>
-				</executions>
-				<configuration>
-					<moduleName>com.baeldung.Google_web_toolkit</moduleName>
-					<moduleShortName>Google_web_toolkit</moduleShortName>
-					<failOnError>true</failOnError>
-					<!-- GWT compiler 2.8 requires 1.8, hence define sourceLevel here if 
-						you use a different source language for java compilation -->
-					<sourceLevel>1.8</sourceLevel>
-					<!-- Compiler configuration -->
-					<compilerArgs>
-						<!-- Ask GWT to create the Story of Your Compile (SOYC) (gwt:compile) -->
-						<arg>-compileReport</arg>
-						<arg>-XcompilerMetrics</arg>
-					</compilerArgs>
-					<!-- DevMode configuration -->
-					<warDir>${project.build.directory}/${project.build.finalName}</warDir>
-					<classpathScope>compile+runtime</classpathScope>
-					<!-- URL(s) that should be opened by DevMode (gwt:devmode). -->
-					<startupUrls>
-						<startupUrl>Google_web_toolkit.html</startupUrl>
-					</startupUrls>
-				</configuration>
-			</plugin>
+            <!-- GWT Maven Plugin -->
+            <plugin>
+                <groupId>net.ltgt.gwt.maven</groupId>
+                <artifactId>gwt-maven-plugin</artifactId>
+                <version>1.0-rc-8</version>
+                <executions>
+                    <execution>
+                        <goals>
+                            <goal>compile</goal>
+                            <goal>test</goal>
+                        </goals>
+                    </execution>
+                </executions>
+                <configuration>
+                    <moduleName>com.baeldung.Google_web_toolkit</moduleName>
+                    <moduleShortName>Google_web_toolkit</moduleShortName>
+                    <failOnError>true</failOnError>
+                    <!-- GWT compiler 2.8 requires 1.8, hence define sourceLevel here if
+                        you use a different source language for java compilation -->
+                    <sourceLevel>1.8</sourceLevel>
+                    <!-- Compiler configuration -->
+                    <compilerArgs>
+                        <!-- Ask GWT to create the Story of Your Compile (SOYC) (gwt:compile) -->
+                        <arg>-compileReport</arg>
+                        <arg>-XcompilerMetrics</arg>
+                    </compilerArgs>
+                    <!-- DevMode configuration -->
+                    <warDir>${project.build.directory}/${project.build.finalName}</warDir>
+                    <classpathScope>compile+runtime</classpathScope>
+                    <!-- URL(s) that should be opened by DevMode (gwt:devmode). -->
+                    <startupUrls>
+                        <startupUrl>Google_web_toolkit.html</startupUrl>
+                    </startupUrls>
+                </configuration>
+            </plugin>
 
-			<!-- Skip normal test execution, we use gwt:test instead -->
-			<plugin>
-				<artifactId>maven-surefire-plugin</artifactId>
-				<version>2.17</version>
-				<configuration>
-					<skip>true</skip>
-				</configuration>
-			</plugin>
+            <!-- Skip normal test execution, we use gwt:test instead -->
+            <plugin>
+                <artifactId>maven-surefire-plugin</artifactId>
+                <version>2.17</version>
+                <configuration>
+                    <skip>true</skip>
+                </configuration>
+            </plugin>
 
-		</plugins>
-	</build>
-	
-	<properties>
+        </plugins>
+    </build>
 
-		<!-- Setting maven.compiler.source to something different to 1.8 needs 
-			that you configure the sourceLevel in gwt-maven-plugin since GWT compiler 
-			2.8 requires 1.8 (see gwt-maven-plugin block below) -->
-		<maven.compiler.source>1.8</maven.compiler.source>
-		<maven.compiler.target>1.8</maven.compiler.target>
+    <properties>
+
+        <!-- Setting maven.compiler.source to something different to 1.8 needs
+            that you configure the sourceLevel in gwt-maven-plugin since GWT compiler
+            2.8 requires 1.8 (see gwt-maven-plugin block below) -->
+        <maven.compiler.source>1.8</maven.compiler.source>
+        <maven.compiler.target>1.8</maven.compiler.target>
+
+        <!-- Don't let your Mac use a crazy non-standard encoding -->
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
+        <gwt.version>2.8.2</gwt.version>
+    </properties>
 
-		<!-- Don't let your Mac use a crazy non-standard encoding -->
-		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-		<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
-		<gwt.version>2.8.2</gwt.version>
-	</properties>
-	
 </project>
diff --git a/graphql/graphql-java/pom.xml b/graphql/graphql-java/pom.xml
index fb121d3234..3613d89ae7 100644
--- a/graphql/graphql-java/pom.xml
+++ b/graphql/graphql-java/pom.xml
@@ -1,5 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <groupId>com.baeldung.graphql</groupId>
     <artifactId>graphql-java</artifactId>
diff --git a/grpc/pom.xml b/grpc/pom.xml
index ab550c31d7..c7ae111da3 100644
--- a/grpc/pom.xml
+++ b/grpc/pom.xml
@@ -1,11 +1,12 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>grpc</artifactId>
     <version>0.0.1-SNAPSHOT</version>
-	<name>grpc</name>
+    <name>grpc</name>
     <packaging>jar</packaging>
-	
+
     <parent>
         <groupId>com.baeldung</groupId>
         <artifactId>parent-modules</artifactId>
diff --git a/gson/pom.xml b/gson/pom.xml
index 4aa6c00458..f2ed5509fa 100644
--- a/gson/pom.xml
+++ b/gson/pom.xml
@@ -1,3 +1,4 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0"
          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
diff --git a/guava-collections-map/pom.xml b/guava-collections-map/pom.xml
index 21597d0e28..ee8ceb10f3 100644
--- a/guava-collections-map/pom.xml
+++ b/guava-collections-map/pom.xml
@@ -1,5 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <groupId>com.baeldung.guava</groupId>
     <artifactId>guava-collections-map</artifactId>
diff --git a/guava-collections-set/pom.xml b/guava-collections-set/pom.xml
index 640a28c4c1..8bb0b924f9 100644
--- a/guava-collections-set/pom.xml
+++ b/guava-collections-set/pom.xml
@@ -1,5 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>guava-collections-set</artifactId>
     <version>0.1.0-SNAPSHOT</version>
diff --git a/guava-collections/pom.xml b/guava-collections/pom.xml
index 9dfcceaab8..9002ac2b91 100644
--- a/guava-collections/pom.xml
+++ b/guava-collections/pom.xml
@@ -1,5 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>guava-collections</artifactId>
     <version>0.1.0-SNAPSHOT</version>
diff --git a/guava-io/pom.xml b/guava-io/pom.xml
index aaaf7edd4e..7517d442b0 100644
--- a/guava-io/pom.xml
+++ b/guava-io/pom.xml
@@ -1,5 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>guava-io</artifactId>
     <version>0.1.0-SNAPSHOT</version>
diff --git a/guava-modules/guava-18/pom.xml b/guava-modules/guava-18/pom.xml
index d55aa9ce82..30d9f953ac 100644
--- a/guava-modules/guava-18/pom.xml
+++ b/guava-modules/guava-18/pom.xml
@@ -1,11 +1,11 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>guava-18</artifactId>
     <version>0.1.0-SNAPSHOT</version>
     <name>guava-18</name>
-    
+
     <parent>
         <groupId>com.baeldung</groupId>
         <artifactId>parent-java</artifactId>
diff --git a/guava-modules/guava-19/pom.xml b/guava-modules/guava-19/pom.xml
index 0548bb0c1f..0060afd426 100644
--- a/guava-modules/guava-19/pom.xml
+++ b/guava-modules/guava-19/pom.xml
@@ -1,11 +1,11 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>guava-19</artifactId>
     <version>0.1.0-SNAPSHOT</version>
     <name>guava-19</name>
-    
+
     <parent>
         <groupId>com.baeldung</groupId>
         <artifactId>parent-java</artifactId>
diff --git a/guava-modules/guava-21/pom.xml b/guava-modules/guava-21/pom.xml
index bdb1058a48..7932cfa6d8 100644
--- a/guava-modules/guava-21/pom.xml
+++ b/guava-modules/guava-21/pom.xml
@@ -1,11 +1,11 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>guava-21</artifactId>
     <version>1.0-SNAPSHOT</version>
     <name>guava-21</name>
-    
+
     <parent>
         <groupId>com.baeldung</groupId>
         <artifactId>parent-java</artifactId>
diff --git a/guava-modules/pom.xml b/guava-modules/pom.xml
index fed9e446f7..2b899df162 100644
--- a/guava-modules/pom.xml
+++ b/guava-modules/pom.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://maven.apache.org/POM/4.0.0"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>guava-modules</artifactId>
     <name>guava-modules</name>
diff --git a/guava/pom.xml b/guava/pom.xml
index 4ca9918455..3f07b77b0b 100644
--- a/guava/pom.xml
+++ b/guava/pom.xml
@@ -1,5 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>guava</artifactId>
     <version>0.1.0-SNAPSHOT</version>
diff --git a/guest/core-java-9/pom.xml b/guest/core-java-9/pom.xml
index 3847c19d16..786f85ce86 100644
--- a/guest/core-java-9/pom.xml
+++ b/guest/core-java-9/pom.xml
@@ -1,11 +1,12 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <groupId>com.stackify</groupId>
     <artifactId>core-java-9</artifactId>
     <version>0.0.1-SNAPSHOT</version>
-	<name>core-java-9</name>
-	
+    <name>core-java-9</name>
+
     <parent>
         <groupId>com.baeldung</groupId>
         <artifactId>parent-modules</artifactId>
diff --git a/guest/core-java/pom.xml b/guest/core-java/pom.xml
index 5057f7eaed..aaf67fd27e 100644
--- a/guest/core-java/pom.xml
+++ b/guest/core-java/pom.xml
@@ -1,10 +1,11 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <groupId>com.stackify</groupId>
     <artifactId>core-java</artifactId>
     <version>0.0.1-SNAPSHOT</version>
-	<name>core-java</name>
+    <name>core-java</name>
 
     <parent>
         <groupId>com.baeldung</groupId>
diff --git a/guest/core-kotlin/pom.xml b/guest/core-kotlin/pom.xml
index a57dd28ffd..2d4a0c6144 100644
--- a/guest/core-kotlin/pom.xml
+++ b/guest/core-kotlin/pom.xml
@@ -2,12 +2,12 @@
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
+    <groupId>com.stackify</groupId>
     <artifactId>core-kotlin</artifactId>
     <version>1.0-SNAPSHOT</version>
-    <groupId>com.stackify</groupId>
+    <name>core-kotlin</name>
     <packaging>jar</packaging>
-	<name>core-kotlin</name>
-	
+
     <repositories>
         <repository>
             <id>jcenter</id>
diff --git a/guest/deep-jsf/pom.xml b/guest/deep-jsf/pom.xml
index 12426a8833..91cf567e73 100644
--- a/guest/deep-jsf/pom.xml
+++ b/guest/deep-jsf/pom.xml
@@ -1,28 +1,27 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <groupId>com.stackify</groupId>
     <artifactId>deep-jsf</artifactId>
     <version>0.0.1-SNAPSHOT</version>
     <name>deep-jsf</name>
     <packaging>war</packaging>
-    
+
     <parent>
         <groupId>com.baeldung</groupId>
         <artifactId>parent-modules</artifactId>
         <version>1.0.0-SNAPSHOT</version>
         <relativePath>../../</relativePath>
     </parent>
-    
-    <dependencies>
 
+    <dependencies>
         <dependency>
             <groupId>javax</groupId>
             <artifactId>javaee-api</artifactId>
             <version>${javaee-api.version}</version>
             <scope>provided</scope>
         </dependency>
-
     </dependencies>
 
     <build>
diff --git a/guest/junit5-example/pom.xml b/guest/junit5-example/pom.xml
index c6370941d1..05e320f96d 100644
--- a/guest/junit5-example/pom.xml
+++ b/guest/junit5-example/pom.xml
@@ -1,11 +1,12 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <groupId>junit5-example</groupId>
     <artifactId>junit5-example</artifactId>
     <version>0.0.1-SNAPSHOT</version>
     <name>junit5-example</name>
-    
+
     <parent>
         <groupId>com.baeldung</groupId>
         <artifactId>parent-modules</artifactId>
diff --git a/guest/log4j2-example/pom.xml b/guest/log4j2-example/pom.xml
index 31a32a4562..a3284dbfe3 100644
--- a/guest/log4j2-example/pom.xml
+++ b/guest/log4j2-example/pom.xml
@@ -1,11 +1,12 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <groupId>log4j2-example</groupId>
     <artifactId>log4j2-example</artifactId>
     <version>0.0.1-SNAPSHOT</version>
     <name>log4j2-example</name>
-    
+
     <parent>
         <groupId>com.baeldung</groupId>
         <artifactId>parent-modules</artifactId>
diff --git a/guest/logback-example/pom.xml b/guest/logback-example/pom.xml
index 6e9fe0ddea..e7e83c743f 100644
--- a/guest/logback-example/pom.xml
+++ b/guest/logback-example/pom.xml
@@ -1,3 +1,4 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
@@ -5,14 +6,14 @@
     <artifactId>logback-example</artifactId>
     <version>0.0.1-SNAPSHOT</version>
     <name>logback-example</name>
-    
+
     <parent>
         <groupId>com.baeldung</groupId>
         <artifactId>parent-modules</artifactId>
         <version>1.0.0-SNAPSHOT</version>
         <relativePath>../../</relativePath>
     </parent>
-    
+
     <dependencies>
         <dependency>
             <groupId>org.codehaus.janino</groupId>
@@ -20,7 +21,7 @@
             <version>${janino.version}</version>
         </dependency>
     </dependencies>
-    
+
     <properties>
         <janino.version>3.0.7</janino.version>
     </properties>
diff --git a/guest/memory-leaks/pom.xml b/guest/memory-leaks/pom.xml
index f1d411acbc..0712e0627d 100644
--- a/guest/memory-leaks/pom.xml
+++ b/guest/memory-leaks/pom.xml
@@ -1,10 +1,11 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>memory-leaks</artifactId>
     <version>0.0.1-SNAPSHOT</version>
     <name>memory-leaks</name>
-    
+
     <parent>
         <groupId>com.baeldung</groupId>
         <artifactId>parent-modules</artifactId>
diff --git a/guest/remote-debugging/pom.xml b/guest/remote-debugging/pom.xml
index 07b9cc49d8..4541160e37 100644
--- a/guest/remote-debugging/pom.xml
+++ b/guest/remote-debugging/pom.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <groupId>com.stackify</groupId>
     <artifactId>remote-debugging</artifactId>
@@ -12,7 +12,7 @@
         <groupId>org.springframework.boot</groupId>
         <artifactId>spring-boot-starter-parent</artifactId>
         <version>1.5.8.RELEASE</version>
-        <relativePath /> <!-- lookup parent from repository -->
+        <relativePath/> <!-- lookup parent from repository -->
     </parent>
 
     <dependencies>
diff --git a/guest/slf4j/guide/pom.xml b/guest/slf4j/guide/pom.xml
index 657ede73b6..8b479a4ba7 100644
--- a/guest/slf4j/guide/pom.xml
+++ b/guest/slf4j/guide/pom.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <groupId>com.stackify.slf4j.guide</groupId>
     <artifactId>slf4j-parent-module</artifactId>
@@ -44,7 +44,6 @@
         </dependency>
     </dependencies>
 
-
     <build>
         <plugins>
             <plugin>
diff --git a/guest/slf4j/guide/slf4j-log4j/pom.xml b/guest/slf4j/guide/slf4j-log4j/pom.xml
index bca5392f4d..70b93d8ab4 100644
--- a/guest/slf4j/guide/slf4j-log4j/pom.xml
+++ b/guest/slf4j/guide/slf4j-log4j/pom.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>slf4j-log4j</artifactId>
     <version>0.0.1-SNAPSHOT</version>
@@ -35,6 +35,7 @@
             <scope>test</scope>
         </dependency>
     </dependencies>
+
     <properties>
         <slf4j.log4j.version>1.7.25</slf4j.log4j.version>
     </properties>
diff --git a/guest/slf4j/guide/slf4j-log4j2/pom.xml b/guest/slf4j/guide/slf4j-log4j2/pom.xml
index 9473362cb8..93a8d9e974 100644
--- a/guest/slf4j/guide/slf4j-log4j2/pom.xml
+++ b/guest/slf4j/guide/slf4j-log4j2/pom.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>slf4j-log4j2</artifactId>
     <version>0.0.1-SNAPSHOT</version>
diff --git a/guest/slf4j/guide/slf4j-logback/pom.xml b/guest/slf4j/guide/slf4j-logback/pom.xml
index 0327e79732..74f4470bad 100644
--- a/guest/slf4j/guide/slf4j-logback/pom.xml
+++ b/guest/slf4j/guide/slf4j-logback/pom.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>slf4j-logback</artifactId>
     <version>0.0.1-SNAPSHOT</version>
diff --git a/guest/spring-boot-app/pom.xml b/guest/spring-boot-app/pom.xml
index 423dadbb99..6f9c8e8aa9 100644
--- a/guest/spring-boot-app/pom.xml
+++ b/guest/spring-boot-app/pom.xml
@@ -1,5 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <groupId>spring-boot-app</groupId>
     <artifactId>spring-boot-app</artifactId>
diff --git a/guest/spring-mvc/pom.xml b/guest/spring-mvc/pom.xml
index 3bffb1530d..df08fa0595 100644
--- a/guest/spring-mvc/pom.xml
+++ b/guest/spring-mvc/pom.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <groupId>com.stackify.guest</groupId>
     <artifactId>spring-mvc</artifactId>
@@ -13,7 +13,7 @@
         <groupId>org.springframework.boot</groupId>
         <artifactId>spring-boot-starter-parent</artifactId>
         <version>2.0.0.RELEASE</version>
-        <relativePath /> <!-- lookup parent from repository -->
+        <relativePath/> <!-- lookup parent from repository -->
     </parent>
 
     <dependencies>
diff --git a/guest/spring-security/pom.xml b/guest/spring-security/pom.xml
index 8be42ba32b..2ac8935c3c 100644
--- a/guest/spring-security/pom.xml
+++ b/guest/spring-security/pom.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <groupId>com.stackify.guest</groupId>
     <artifactId>spring-security</artifactId>
@@ -12,7 +12,7 @@
         <groupId>org.springframework.boot</groupId>
         <artifactId>spring-boot-starter-parent</artifactId>
         <version>2.0.0.RELEASE</version>
-        <relativePath />
+        <relativePath/>
     </parent>
 
     <dependencies>
diff --git a/guest/thread-pools/pom.xml b/guest/thread-pools/pom.xml
index 2591cb2746..26809fccd8 100644
--- a/guest/thread-pools/pom.xml
+++ b/guest/thread-pools/pom.xml
@@ -1,11 +1,12 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <groupId>com.stackify</groupId>
     <artifactId>thread-pools</artifactId>
     <version>0.0.1-SNAPSHOT</version>
     <name>thread-pools</name>
-    
+
     <parent>
         <groupId>com.baeldung</groupId>
         <artifactId>parent-modules</artifactId>
diff --git a/guest/tomcat-app/pom.xml b/guest/tomcat-app/pom.xml
index ab18023f70..acdecc445c 100644
--- a/guest/tomcat-app/pom.xml
+++ b/guest/tomcat-app/pom.xml
@@ -1,5 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <groupId>com.stackify</groupId>
     <artifactId>tomcat-app</artifactId>
diff --git a/guest/webservices/rest-client/pom.xml b/guest/webservices/rest-client/pom.xml
index 8508186e86..b05e435c4c 100644
--- a/guest/webservices/rest-client/pom.xml
+++ b/guest/webservices/rest-client/pom.xml
@@ -1,4 +1,6 @@
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <groupId>com.stackify</groupId>
     <artifactId>rest-client</artifactId>
diff --git a/guest/webservices/rest-server/pom.xml b/guest/webservices/rest-server/pom.xml
index c576924215..ca81979b1e 100644
--- a/guest/webservices/rest-server/pom.xml
+++ b/guest/webservices/rest-server/pom.xml
@@ -1,5 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <groupId>com.stackify</groupId>
     <artifactId>rest-server</artifactId>
diff --git a/guest/webservices/spring-rest-service/pom.xml b/guest/webservices/spring-rest-service/pom.xml
index fcec8a3e12..6243f09727 100644
--- a/guest/webservices/spring-rest-service/pom.xml
+++ b/guest/webservices/spring-rest-service/pom.xml
@@ -1,5 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <groupId>com.stackify</groupId>
     <artifactId>spring-rest-service</artifactId>
diff --git a/guice/pom.xml b/guice/pom.xml
index 8ed2b557dc..d119bbf78e 100644
--- a/guice/pom.xml
+++ b/guice/pom.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <groupId>com.baeldung.examples.guice</groupId>
     <artifactId>guice</artifactId>
diff --git a/hazelcast/pom.xml b/hazelcast/pom.xml
index 9e0b0671d0..10234bb81f 100644
--- a/hazelcast/pom.xml
+++ b/hazelcast/pom.xml
@@ -1,5 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>hazelcast</artifactId>
     <version>0.0.1-SNAPSHOT</version>
@@ -13,11 +14,11 @@
 
     <dependencies>
         <!-- Hazelcast Jet -->
-		<dependency>
-          <groupId>com.hazelcast.jet</groupId>
-          <artifactId>hazelcast-jet</artifactId>
-          <version>${hazelcast.jet.version}</version>
-		</dependency>
+        <dependency>
+            <groupId>com.hazelcast.jet</groupId>
+            <artifactId>hazelcast-jet</artifactId>
+            <version>${hazelcast.jet.version}</version>
+        </dependency>
     </dependencies>
 
     <build>
diff --git a/helidon/helidon-mp/pom.xml b/helidon/helidon-mp/pom.xml
index 82d52ca2ef..38187a5cb8 100644
--- a/helidon/helidon-mp/pom.xml
+++ b/helidon/helidon-mp/pom.xml
@@ -4,13 +4,13 @@
     <modelVersion>4.0.0</modelVersion>
     <artifactId>helidon-mp</artifactId>
     <name>helidon-mp</name>
-    
-	<parent>
+
+    <parent>
         <groupId>com.baeldung.helidon</groupId>
         <artifactId>helidon</artifactId>
         <version>1.0.0-SNAPSHOT</version>
     </parent>
-	
+
     <dependencies>
         <dependency>
             <groupId>io.helidon.microprofile.bundles</groupId>
diff --git a/helidon/helidon-se/pom.xml b/helidon/helidon-se/pom.xml
index ae16fa16e4..d5592dfb7b 100644
--- a/helidon/helidon-se/pom.xml
+++ b/helidon/helidon-se/pom.xml
@@ -5,7 +5,7 @@
     <modelVersion>4.0.0</modelVersion>
     <artifactId>helidon-se</artifactId>
     <name>helidon-se</name>
-    
+
     <parent>
         <groupId>com.baeldung.helidon</groupId>
         <artifactId>helidon</artifactId>
@@ -54,7 +54,6 @@
             <artifactId>helidon-security-integration-webserver</artifactId>
             <version>${helidon.version}</version>
         </dependency>
-
     </dependencies>
 
     <properties>
diff --git a/httpclient-simple/pom.xml b/httpclient-simple/pom.xml
index 183c4438de..4b97070307 100644
--- a/httpclient-simple/pom.xml
+++ b/httpclient-simple/pom.xml
@@ -1,5 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>httpclient-simple</artifactId>
     <version>0.1-SNAPSHOT</version>
diff --git a/httpclient/pom.xml b/httpclient/pom.xml
index 6316ee4eed..606e9ed793 100644
--- a/httpclient/pom.xml
+++ b/httpclient/pom.xml
@@ -1,5 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>httpclient</artifactId>
     <version>0.1-SNAPSHOT</version>
diff --git a/hystrix/pom.xml b/hystrix/pom.xml
index 4aeb47f095..8c505c9104 100644
--- a/hystrix/pom.xml
+++ b/hystrix/pom.xml
@@ -1,13 +1,14 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>hystrix</artifactId>
     <version>1.0</version>
     <name>hystrix</name>
 
     <parent>
-        <artifactId>parent-boot-1</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-1</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../parent-boot-1</relativePath>
     </parent>
diff --git a/image-processing/pom.xml b/image-processing/pom.xml
index ce75145dc7..7b130329c7 100644
--- a/image-processing/pom.xml
+++ b/image-processing/pom.xml
@@ -1,11 +1,11 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>image-processing</artifactId>
     <version>1.0-SNAPSHOT</version>
     <name>image-processing</name>
-    
+
     <parent>
         <groupId>com.baeldung</groupId>
         <artifactId>parent-modules</artifactId>
diff --git a/immutables/pom.xml b/immutables/pom.xml
index efb21e584a..af4a62ea6b 100644
--- a/immutables/pom.xml
+++ b/immutables/pom.xml
@@ -1,10 +1,10 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>immutables</artifactId>
     <name>immutables</name>
-    
+
     <parent>
         <groupId>com.baeldung</groupId>
         <artifactId>parent-modules</artifactId>
diff --git a/jackson-annotations/pom.xml b/jackson-annotations/pom.xml
index b3efc51e62..a259d895da 100644
--- a/jackson-annotations/pom.xml
+++ b/jackson-annotations/pom.xml
@@ -1,5 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>jackson-annotations</artifactId>
     <version>0.0.1-SNAPSHOT</version>
diff --git a/jackson-conversions-2/pom.xml b/jackson-conversions-2/pom.xml
index 07104a8972..732c89c1e5 100644
--- a/jackson-conversions-2/pom.xml
+++ b/jackson-conversions-2/pom.xml
@@ -1,5 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>jackson-conversions-2</artifactId>
     <version>0.0.1-SNAPSHOT</version>
diff --git a/jackson-conversions/pom.xml b/jackson-conversions/pom.xml
index 58489fc7b5..c45d88bedd 100644
--- a/jackson-conversions/pom.xml
+++ b/jackson-conversions/pom.xml
@@ -1,5 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>jackson-conversions</artifactId>
     <version>0.0.1-SNAPSHOT</version>
diff --git a/jackson-custom-conversions/pom.xml b/jackson-custom-conversions/pom.xml
index 501bc28d6d..68c785e972 100644
--- a/jackson-custom-conversions/pom.xml
+++ b/jackson-custom-conversions/pom.xml
@@ -1,5 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>jackson-custom-conversions</artifactId>
     <version>0.0.1-SNAPSHOT</version>
diff --git a/jackson-exceptions/pom.xml b/jackson-exceptions/pom.xml
index ce580996de..3cf4796fa7 100644
--- a/jackson-exceptions/pom.xml
+++ b/jackson-exceptions/pom.xml
@@ -1,5 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>jackson-exceptions</artifactId>
     <version>0.0.1-SNAPSHOT</version>
diff --git a/jackson-simple/pom.xml b/jackson-simple/pom.xml
index 23574a70a8..cdda031e0f 100644
--- a/jackson-simple/pom.xml
+++ b/jackson-simple/pom.xml
@@ -1,5 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>jackson-simple</artifactId>
     <version>0.1-SNAPSHOT</version>
diff --git a/jackson/pom.xml b/jackson/pom.xml
index 40e768381b..d7fc3aac9a 100644
--- a/jackson/pom.xml
+++ b/jackson/pom.xml
@@ -1,5 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>jackson</artifactId>
     <version>0.1-SNAPSHOT</version>
diff --git a/java-blockchain/pom.xml b/java-blockchain/pom.xml
index 4c5d0f31d5..3100fed7b9 100644
--- a/java-blockchain/pom.xml
+++ b/java-blockchain/pom.xml
@@ -1,6 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0"
-    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <groupId>com.baeldung.blockchain</groupId>
     <artifactId>java-blockchain</artifactId>
diff --git a/java-collections-conversions-2/pom.xml b/java-collections-conversions-2/pom.xml
index 17eee0c009..b04d764719 100644
--- a/java-collections-conversions-2/pom.xml
+++ b/java-collections-conversions-2/pom.xml
@@ -1,5 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>java-collections-conversions-2</artifactId>
     <version>0.1.0-SNAPSHOT</version>
diff --git a/java-collections-conversions/pom.xml b/java-collections-conversions/pom.xml
index 25131d2031..2073640372 100644
--- a/java-collections-conversions/pom.xml
+++ b/java-collections-conversions/pom.xml
@@ -1,5 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>java-collections-conversions</artifactId>
     <version>0.1.0-SNAPSHOT</version>
@@ -27,7 +28,7 @@
     </dependencies>
 
     <build>
-        <finalName>java-collections-conversions-2</finalName>
+        <finalName>java-collections-conversions</finalName>
         <resources>
             <resource>
                 <directory>src/main/resources</directory>
diff --git a/java-collections-maps/pom.xml b/java-collections-maps/pom.xml
index fb4d2fe88e..38cf1c38ad 100644
--- a/java-collections-maps/pom.xml
+++ b/java-collections-maps/pom.xml
@@ -1,5 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>java-collections-maps</artifactId>
     <version>0.1.0-SNAPSHOT</version>
diff --git a/java-ee-8-security-api/app-auth-basic-store-db/pom.xml b/java-ee-8-security-api/app-auth-basic-store-db/pom.xml
index 582e82d8bb..02e3b04a40 100644
--- a/java-ee-8-security-api/app-auth-basic-store-db/pom.xml
+++ b/java-ee-8-security-api/app-auth-basic-store-db/pom.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>app-auth-basic-store-db</artifactId>
     <name>app-auth-basic-store-db</name>
@@ -64,4 +64,5 @@
             </plugin>
         </plugins>
     </build>
+
 </project>
diff --git a/java-ee-8-security-api/app-auth-custom-form-store-custom/pom.xml b/java-ee-8-security-api/app-auth-custom-form-store-custom/pom.xml
index 43809f1cd5..9354782999 100644
--- a/java-ee-8-security-api/app-auth-custom-form-store-custom/pom.xml
+++ b/java-ee-8-security-api/app-auth-custom-form-store-custom/pom.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>app-auth-custom-form-store-custom</artifactId>
     <name>app-auth-custom-form-store-custom</name>
@@ -38,4 +38,5 @@
             </plugin>
         </plugins>
     </build>
+
 </project>
diff --git a/java-ee-8-security-api/app-auth-custom-no-store/pom.xml b/java-ee-8-security-api/app-auth-custom-no-store/pom.xml
index 51ee64097a..fee665e22d 100644
--- a/java-ee-8-security-api/app-auth-custom-no-store/pom.xml
+++ b/java-ee-8-security-api/app-auth-custom-no-store/pom.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>app-auth-custom-no-store</artifactId>
     <name>app-auth-custom-no-store</name>
@@ -64,4 +64,5 @@
             </plugin>
         </plugins>
     </build>
+
 </project>
diff --git a/java-ee-8-security-api/app-auth-form-store-ldap/pom.xml b/java-ee-8-security-api/app-auth-form-store-ldap/pom.xml
index 6a7b97b2d7..912a2cabac 100644
--- a/java-ee-8-security-api/app-auth-form-store-ldap/pom.xml
+++ b/java-ee-8-security-api/app-auth-form-store-ldap/pom.xml
@@ -47,4 +47,5 @@
             </plugin>
         </plugins>
     </build>
+
 </project>
diff --git a/java-ee-8-security-api/pom.xml b/java-ee-8-security-api/pom.xml
index f43f3d7c5f..5eeebcb6f0 100644
--- a/java-ee-8-security-api/pom.xml
+++ b/java-ee-8-security-api/pom.xml
@@ -8,11 +8,11 @@
     <name>java-ee-8-security-api</name>
     <packaging>pom</packaging>
 
-	<parent>
-		<groupId>com.baeldung</groupId>
-		<artifactId>parent-modules</artifactId>
-		<version>1.0.0-SNAPSHOT</version>
-	</parent>
+    <parent>
+        <groupId>com.baeldung</groupId>
+        <artifactId>parent-modules</artifactId>
+        <version>1.0.0-SNAPSHOT</version>
+    </parent>
 
     <modules>
         <module>app-auth-basic-store-db</module>
@@ -22,14 +22,12 @@
     </modules>
 
     <dependencies>
-    
         <dependency>
             <groupId>javax</groupId>
             <artifactId>javaee-web-api</artifactId>
             <version>${javaee-version}</version>
             <scope>provided</scope>
         </dependency>
-        
     </dependencies>
 
     <build>
diff --git a/java-jdi/pom.xml b/java-jdi/pom.xml
index 4fcaadf4f0..978ede604b 100644
--- a/java-jdi/pom.xml
+++ b/java-jdi/pom.xml
@@ -1,6 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0"
-    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>java-jdi</artifactId>
     <version>0.1.0-SNAPSHOT</version>
@@ -20,7 +21,7 @@
             <artifactId>tools</artifactId>
             <version>${tools.version}</version>
             <scope>system</scope>
-      		<systemPath>${java.home}/../lib/tools.jar</systemPath>
+            <systemPath>${java.home}/../lib/tools.jar</systemPath>
         </dependency>
     </dependencies>
 
@@ -35,6 +36,7 @@
     </build>
 
     <properties>
-		<tools.version>1.8</tools.version>
+        <tools.version>1.8</tools.version>
     </properties>
+
 </project>
diff --git a/java-lite/pom.xml b/java-lite/pom.xml
index ce6e838d92..7ff50a8fd3 100644
--- a/java-lite/pom.xml
+++ b/java-lite/pom.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <groupId>org.baeldung</groupId>
     <artifactId>java-lite</artifactId>
diff --git a/java-math-2/pom.xml b/java-math-2/pom.xml
index 10af20812e..e22dcc2b31 100644
--- a/java-math-2/pom.xml
+++ b/java-math-2/pom.xml
@@ -1,10 +1,11 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>java-math-2</artifactId>
     <version>0.0.1-SNAPSHOT</version>
     <name>java-math-2</name>
-    
+
     <parent>
         <groupId>com.baeldung</groupId>
         <artifactId>parent-modules</artifactId>
diff --git a/java-math/pom.xml b/java-math/pom.xml
index 9f0aa8d878..9b4af4c13d 100644
--- a/java-math/pom.xml
+++ b/java-math/pom.xml
@@ -1,10 +1,11 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>java-math</artifactId>
     <version>0.0.1-SNAPSHOT</version>
     <name>java-math</name>
-    
+
     <parent>
         <groupId>com.baeldung</groupId>
         <artifactId>parent-modules</artifactId>
@@ -52,7 +53,7 @@
             <groupId>com.github.dpaukov</groupId>
             <artifactId>combinatoricslib3</artifactId>
             <version>${combinatoricslib3.version}</version>
-         </dependency>
+        </dependency>
         <!-- Benchmarking -->
         <dependency>
             <groupId>org.openjdk.jmh</groupId>
diff --git a/java-numbers-2/pom.xml b/java-numbers-2/pom.xml
index 3f49cbf5f4..ba40ef0a38 100644
--- a/java-numbers-2/pom.xml
+++ b/java-numbers-2/pom.xml
@@ -1,6 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0"
-    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>java-numbers-2</artifactId>
     <version>0.1.0-SNAPSHOT</version>
diff --git a/java-numbers/pom.xml b/java-numbers/pom.xml
index 3fc7134be2..fc904c5747 100644
--- a/java-numbers/pom.xml
+++ b/java-numbers/pom.xml
@@ -1,6 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0"
-    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>java-numbers</artifactId>
     <version>0.1.0-SNAPSHOT</version>
@@ -52,4 +53,5 @@
         <decimal4j.version>1.0.3</decimal4j.version>
         <assertj.version>3.6.1</assertj.version>
     </properties>
+
 </project>
diff --git a/java-rmi/pom.xml b/java-rmi/pom.xml
index ad413b66ab..5fa3ac8845 100644
--- a/java-rmi/pom.xml
+++ b/java-rmi/pom.xml
@@ -1,3 +1,4 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
diff --git a/java-spi/exchange-rate-api/pom.xml b/java-spi/exchange-rate-api/pom.xml
index fd3a7ae0a7..1630dbf699 100644
--- a/java-spi/exchange-rate-api/pom.xml
+++ b/java-spi/exchange-rate-api/pom.xml
@@ -1,5 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>exchange-rate-api</artifactId>
     <name>exchange-rate-api</name>
diff --git a/java-spi/exchange-rate-app/pom.xml b/java-spi/exchange-rate-app/pom.xml
index 7a076d560c..fea9ebe8d9 100644
--- a/java-spi/exchange-rate-app/pom.xml
+++ b/java-spi/exchange-rate-app/pom.xml
@@ -1,5 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>exchange-rate-app</artifactId>
     <name>exchange-rate-app</name>
diff --git a/java-spi/exchange-rate-impl/pom.xml b/java-spi/exchange-rate-impl/pom.xml
index 8a77b51793..553a9e3377 100644
--- a/java-spi/exchange-rate-impl/pom.xml
+++ b/java-spi/exchange-rate-impl/pom.xml
@@ -1,5 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>exchange-rate-impl</artifactId>
     <name>exchange-rate-impl</name>
diff --git a/java-spi/pom.xml b/java-spi/pom.xml
index 97a22024bd..6d4874083d 100644
--- a/java-spi/pom.xml
+++ b/java-spi/pom.xml
@@ -1,5 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>java-spi</artifactId>
     <name>java-spi</name>
diff --git a/java-vavr-stream/pom.xml b/java-vavr-stream/pom.xml
index c92f3c8742..94520f299d 100644
--- a/java-vavr-stream/pom.xml
+++ b/java-vavr-stream/pom.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <groupId>com.baeldung.samples</groupId>
     <artifactId>java-vavr-stream</artifactId>
diff --git a/java-websocket/pom.xml b/java-websocket/pom.xml
index 7ba3ca61d0..ddf10c4457 100644
--- a/java-websocket/pom.xml
+++ b/java-websocket/pom.xml
@@ -1,5 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>java-websocket</artifactId>
     <version>0.0.1-SNAPSHOT</version>
diff --git a/javafx/pom.xml b/javafx/pom.xml
index 44e6f7e8da..50b9e7135c 100644
--- a/javafx/pom.xml
+++ b/javafx/pom.xml
@@ -1,13 +1,13 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>javafx</artifactId>
     <name>javafx</name>
-    
+
     <parent>
-        <artifactId>parent-modules</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-modules</artifactId>
         <version>1.0.0-SNAPSHOT</version>
     </parent>
 
diff --git a/javax-servlets/pom.xml b/javax-servlets/pom.xml
index 214cfd9218..5fc9fef24a 100644
--- a/javax-servlets/pom.xml
+++ b/javax-servlets/pom.xml
@@ -1,19 +1,19 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <groupId>com.baeldung.javax-servlets</groupId>
     <artifactId>javax-servlets</artifactId>
     <version>1.0-SNAPSHOT</version>
     <name>javax-servlets</name>
     <packaging>war</packaging>
-    
+
     <parent>
         <groupId>com.baeldung</groupId>
         <artifactId>parent-modules</artifactId>
         <version>1.0.0-SNAPSHOT</version>
     </parent>
-    
+
     <dependencies>
         <dependency>
             <groupId>org.assertj</groupId>
@@ -54,7 +54,7 @@
             <version>${gson.version}</version>
         </dependency>
     </dependencies>
-	
+
     <properties>
         <org.apache.httpcomponents.version>4.5.3</org.apache.httpcomponents.version>
         <gson.version>2.8.2</gson.version>
@@ -62,4 +62,5 @@
         <commons-fileupload.version>1.3.3</commons-fileupload.version>
         <javax.servlet-api.version>4.0.1</javax.servlet-api.version>
     </properties>
+
 </project>
diff --git a/javaxval/pom.xml b/javaxval/pom.xml
index 9484399874..2655d1fe3e 100644
--- a/javaxval/pom.xml
+++ b/javaxval/pom.xml
@@ -1,10 +1,11 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>javaxval</artifactId>
     <version>0.1-SNAPSHOT</version>
     <name>javaxval</name>
-    
+
     <parent>
         <groupId>com.baeldung</groupId>
         <artifactId>parent-modules</artifactId>
@@ -39,11 +40,11 @@
             <scope>test</scope>
         </dependency>
     </dependencies>
-	
+
     <properties>
         <hibernate-validator.version>6.0.13.Final</hibernate-validator.version>
-        <javax.el.version>3.0.0</javax.el.version>    
+        <javax.el.version>3.0.0</javax.el.version>
         <org.springframework.version>5.0.2.RELEASE</org.springframework.version>
         <assertj.version>3.11.1</assertj.version>
-    </properties>    
+    </properties>
 </project>
diff --git a/jaxb/pom.xml b/jaxb/pom.xml
index e5c842d7f0..dc13cf75bc 100644
--- a/jaxb/pom.xml
+++ b/jaxb/pom.xml
@@ -1,5 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>jaxb</artifactId>
     <version>0.0.1-SNAPSHOT</version>
@@ -54,7 +55,7 @@
                                         </goals>
                                     </pluginExecutionFilter>
                                     <action>
-                                        <execute />
+                                        <execute/>
                                     </action>
                                 </pluginExecution>
                             </pluginExecutions>
diff --git a/jee-7-security/pom.xml b/jee-7-security/pom.xml
index 0637bf65cf..e47df7aae9 100644
--- a/jee-7-security/pom.xml
+++ b/jee-7-security/pom.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>jee-7-security</artifactId>
     <version>1.0-SNAPSHOT</version>
@@ -55,7 +55,7 @@
     <properties>
         <javaee_api.version>7.0</javaee_api.version>
         <org.springframework.security.version>4.2.3.RELEASE</org.springframework.security.version>
-		<javax.mvc-api.version>1.0-pr</javax.mvc-api.version>
+        <javax.mvc-api.version>1.0-pr</javax.mvc-api.version>
     </properties>
 
 </project>
diff --git a/jee-7/pom.xml b/jee-7/pom.xml
index 9432801fd9..635d820c2b 100644
--- a/jee-7/pom.xml
+++ b/jee-7/pom.xml
@@ -1,540 +1,540 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0"
-	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
-	<modelVersion>4.0.0</modelVersion>
-	<artifactId>jee-7</artifactId>
-	<version>1.0-SNAPSHOT</version>
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <artifactId>jee-7</artifactId>
+    <version>1.0-SNAPSHOT</version>
     <name>jee-7</name>
-	<packaging>war</packaging>
-	<description>JavaEE 7 Arquillian Archetype Sample</description>
+    <packaging>war</packaging>
+    <description>JavaEE 7 Arquillian Archetype Sample</description>
 
-	<parent>
-		<groupId>com.baeldung</groupId>
-		<artifactId>parent-modules</artifactId>
-		<version>1.0.0-SNAPSHOT</version>
-	</parent>
+    <parent>
+        <groupId>com.baeldung</groupId>
+        <artifactId>parent-modules</artifactId>
+        <version>1.0.0-SNAPSHOT</version>
+    </parent>
 
-	<dependencies>
-		<dependency>
-			<groupId>javax</groupId>
-			<artifactId>javaee-api</artifactId>
-			<version>${javaee_api.version}</version>
-			<scope>provided</scope>
-		</dependency>
+    <dependencyManagement>
+        <dependencies>
+            <dependency>
+                <groupId>org.jboss.arquillian</groupId>
+                <artifactId>arquillian-bom</artifactId>
+                <version>${arquillian_core.version}</version>
+                <scope>import</scope>
+                <type>pom</type>
+            </dependency>
+            <dependency>
+                <groupId>org.jboss.arquillian.extension</groupId>
+                <artifactId>arquillian-drone-bom</artifactId>
+                <version>${arquillian-drone-bom.version}</version>
+                <type>pom</type>
+                <scope>import</scope>
+            </dependency>
+        </dependencies>
+    </dependencyManagement>
 
-		<dependency>
-			<groupId>org.jboss.arquillian.junit</groupId>
-			<artifactId>arquillian-junit-container</artifactId>
-			<scope>test</scope>
-		</dependency>
-		<dependency>
-			<groupId>org.jboss.arquillian.graphene</groupId>
-			<artifactId>graphene-webdriver</artifactId>
-			<version>${graphene-webdriver.version}</version>
-			<type>pom</type>
-			<scope>test</scope>
-		</dependency>
-		<dependency>
-			<groupId>com.jayway.awaitility</groupId>
-			<artifactId>awaitility</artifactId>
-			<version>${awaitility.version}</version>
-			<scope>test</scope>
-		</dependency>
+    <dependencies>
+        <dependency>
+            <groupId>javax</groupId>
+            <artifactId>javaee-api</artifactId>
+            <version>${javaee_api.version}</version>
+            <scope>provided</scope>
+        </dependency>
 
-		<dependency>
-			<groupId>org.jboss.shrinkwrap.resolver</groupId>
-			<artifactId>shrinkwrap-resolver-impl-maven</artifactId>
-			<scope>test</scope>
-			<type>jar</type>
-		</dependency>
+        <dependency>
+            <groupId>org.jboss.arquillian.junit</groupId>
+            <artifactId>arquillian-junit-container</artifactId>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.jboss.arquillian.graphene</groupId>
+            <artifactId>graphene-webdriver</artifactId>
+            <version>${graphene-webdriver.version}</version>
+            <type>pom</type>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>com.jayway.awaitility</groupId>
+            <artifactId>awaitility</artifactId>
+            <version>${awaitility.version}</version>
+            <scope>test</scope>
+        </dependency>
 
-		<dependency>
-			<groupId>org.jboss.shrinkwrap.resolver</groupId>
-			<artifactId>shrinkwrap-resolver-impl-maven-archive</artifactId>
-			<scope>test</scope>
-		</dependency>
-		<dependency>
-			<groupId>org.apache.httpcomponents</groupId>
-			<artifactId>httpclient</artifactId>
-			<version>${httpclient.version}</version>
-		</dependency>
-		<dependency>
-			<groupId>commons-io</groupId>
-			<artifactId>commons-io</artifactId>
-			<version>${commons-io.version}</version>
-		</dependency>
-		<dependency>
-			<groupId>com.sun.faces</groupId>
-			<artifactId>jsf-api</artifactId>
-			<version>${com.sun.faces.jsf.version}</version>
-		</dependency>
-		<dependency>
-			<groupId>com.sun.faces</groupId>
-			<artifactId>jsf-impl</artifactId>
-			<version>${com.sun.faces.jsf.version}</version>
-		</dependency>
-		<dependency>
-			<groupId>javax.servlet</groupId>
-			<artifactId>jstl</artifactId>
-			<version>${jstl.version}</version>
-		</dependency>
-		<dependency>
-			<groupId>javax.servlet</groupId>
-			<artifactId>javax.servlet-api</artifactId>
-			<version>${javax.servlet-api.version}</version>
-		</dependency>
-		<dependency>
-			<groupId>javax.servlet.jsp</groupId>
-			<artifactId>jsp-api</artifactId>
-			<version>${jsp-api.version}</version>
-			<scope>provided</scope>
-		</dependency>
-		<dependency>
-			<groupId>taglibs</groupId>
-			<artifactId>standard</artifactId>
-			<version>${taglibs.standard.version}</version>
-		</dependency>
+        <dependency>
+            <groupId>org.jboss.shrinkwrap.resolver</groupId>
+            <artifactId>shrinkwrap-resolver-impl-maven</artifactId>
+            <scope>test</scope>
+            <type>jar</type>
+        </dependency>
 
-		<dependency>
-			<groupId>javax.mvc</groupId>
-			<artifactId>javax.mvc-api</artifactId>
-			<version>20160715</version>
-		</dependency>
-		<dependency>
-			<groupId>org.glassfish.ozark</groupId>
-			<artifactId>ozark</artifactId>
-			<version>${ozark.version}</version>
-		</dependency>
+        <dependency>
+            <groupId>org.jboss.shrinkwrap.resolver</groupId>
+            <artifactId>shrinkwrap-resolver-impl-maven-archive</artifactId>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.httpcomponents</groupId>
+            <artifactId>httpclient</artifactId>
+            <version>${httpclient.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>commons-io</groupId>
+            <artifactId>commons-io</artifactId>
+            <version>${commons-io.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>com.sun.faces</groupId>
+            <artifactId>jsf-api</artifactId>
+            <version>${com.sun.faces.jsf.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>com.sun.faces</groupId>
+            <artifactId>jsf-impl</artifactId>
+            <version>${com.sun.faces.jsf.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>javax.servlet</groupId>
+            <artifactId>jstl</artifactId>
+            <version>${jstl.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>javax.servlet</groupId>
+            <artifactId>javax.servlet-api</artifactId>
+            <version>${javax.servlet-api.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>javax.servlet.jsp</groupId>
+            <artifactId>jsp-api</artifactId>
+            <version>${jsp-api.version}</version>
+            <scope>provided</scope>
+        </dependency>
+        <dependency>
+            <groupId>taglibs</groupId>
+            <artifactId>standard</artifactId>
+            <version>${taglibs.standard.version}</version>
+        </dependency>
 
-		<dependency>
-			<groupId>org.springframework.security</groupId>
-			<artifactId>spring-security-web</artifactId>
-			<version>${org.springframework.security.version}</version>
-		</dependency>
+        <dependency>
+            <groupId>javax.mvc</groupId>
+            <artifactId>javax.mvc-api</artifactId>
+            <version>20160715</version>
+        </dependency>
+        <dependency>
+            <groupId>org.glassfish.ozark</groupId>
+            <artifactId>ozark</artifactId>
+            <version>${ozark.version}</version>
+        </dependency>
 
-		<dependency>
-			<groupId>org.springframework.security</groupId>
-			<artifactId>spring-security-config</artifactId>
-			<version>${org.springframework.security.version}</version>
-		</dependency>
-		<dependency>
-			<groupId>org.springframework.security</groupId>
-			<artifactId>spring-security-taglibs</artifactId>
-			<version>${org.springframework.security.version}</version>
-		</dependency>
-		<!-- Batch dependencies -->
+        <dependency>
+            <groupId>org.springframework.security</groupId>
+            <artifactId>spring-security-web</artifactId>
+            <version>${org.springframework.security.version}</version>
+        </dependency>
 
-		<dependency>
-			<groupId>org.jboss.spec.javax.batch</groupId>
-			<artifactId>jboss-batch-api_1.0_spec</artifactId>
-			<version>${jboss-batch-api.version}</version>
-		</dependency>
-		<dependency>
-			<groupId>org.jberet</groupId>
-			<artifactId>jberet-core</artifactId>
-			<version>${jberet.version}</version>
-		</dependency>
-		<dependency>
-			<groupId>org.jberet</groupId>
-			<artifactId>jberet-support</artifactId>
-			<version>${jberet.version}</version>
-		</dependency>
-		<dependency>
-			<groupId>org.jboss.spec.javax.transaction</groupId>
-			<artifactId>jboss-transaction-api_1.2_spec</artifactId>
-			<version>${jboss-transaction-api.version}</version>
-		</dependency>
-		<dependency>
-			<groupId>org.jboss.marshalling</groupId>
-			<artifactId>jboss-marshalling</artifactId>
-			<version>${jboss-marshalling.version}</version>
-		</dependency>
-		<dependency>
-			<groupId>org.jboss.weld</groupId>
-			<artifactId>weld-core</artifactId>
-			<version>${weld.version}</version>
-		</dependency>
-		<dependency>
-			<groupId>org.jboss.weld.se</groupId>
-			<artifactId>weld-se</artifactId>
-			<version>${weld.version}</version>
-		</dependency>
-		<dependency>
-			<groupId>org.jberet</groupId>
-			<artifactId>jberet-se</artifactId>
-			<version>${jberet.version}</version>
-		</dependency>
-		<dependency>
-			<groupId>com.h2database</groupId>
-			<artifactId>h2</artifactId>
-			<version>${h2.version}</version>
-		</dependency>
-		<dependency>
-			<groupId>org.glassfish.jersey.containers</groupId>
-			<artifactId>jersey-container-jetty-servlet</artifactId>
-			<version>${jersey-container-jetty-servlet.version}</version>
-		</dependency>
-	</dependencies>
+        <dependency>
+            <groupId>org.springframework.security</groupId>
+            <artifactId>spring-security-config</artifactId>
+            <version>${org.springframework.security.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.security</groupId>
+            <artifactId>spring-security-taglibs</artifactId>
+            <version>${org.springframework.security.version}</version>
+        </dependency>
+        <!-- Batch dependencies -->
 
-	<build>
-		<plugins>
-			<plugin>
-				<groupId>org.apache.maven.plugins</groupId>
-				<artifactId>maven-war-plugin</artifactId>
-				<version>${maven-war-plugin.version}</version>
-				<configuration>
-					<warSourceDirectory>src/main/webapp</warSourceDirectory>
-					<failOnMissingWebXml>false</failOnMissingWebXml>
-				</configuration>
-			</plugin>
-		</plugins>
-		<pluginManagement>
-			<plugins>
-				<!--This plugin's configuration is used to store Eclipse m2e settings 
-					only. It has no influence on the Maven build itself. -->
-				<plugin>
-					<groupId>org.eclipse.m2e</groupId>
-					<artifactId>lifecycle-mapping</artifactId>
-					<version>1.0.0</version>
-					<configuration>
-						<lifecycleMappingMetadata>
-							<pluginExecutions>
-								<pluginExecution>
-									<pluginExecutionFilter>
-										<groupId>
-											org.apache.maven.plugins
-										</groupId>
-										<artifactId>
-											maven-pmd-plugin
-										</artifactId>
-										<versionRange>
-											[3.8,)
-										</versionRange>
-										<goals>
-											<goal>check</goal>
-										</goals>
-									</pluginExecutionFilter>
-									<action>
-										<ignore></ignore>
-									</action>
-								</pluginExecution>
-							</pluginExecutions>
-						</lifecycleMappingMetadata>
-					</configuration>
-				</plugin>
-			</plugins>
-		</pluginManagement>
-	</build>
+        <dependency>
+            <groupId>org.jboss.spec.javax.batch</groupId>
+            <artifactId>jboss-batch-api_1.0_spec</artifactId>
+            <version>${jboss-batch-api.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.jberet</groupId>
+            <artifactId>jberet-core</artifactId>
+            <version>${jberet.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.jberet</groupId>
+            <artifactId>jberet-support</artifactId>
+            <version>${jberet.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.jboss.spec.javax.transaction</groupId>
+            <artifactId>jboss-transaction-api_1.2_spec</artifactId>
+            <version>${jboss-transaction-api.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.jboss.marshalling</groupId>
+            <artifactId>jboss-marshalling</artifactId>
+            <version>${jboss-marshalling.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.jboss.weld</groupId>
+            <artifactId>weld-core</artifactId>
+            <version>${weld.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.jboss.weld.se</groupId>
+            <artifactId>weld-se</artifactId>
+            <version>${weld.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.jberet</groupId>
+            <artifactId>jberet-se</artifactId>
+            <version>${jberet.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>com.h2database</groupId>
+            <artifactId>h2</artifactId>
+            <version>${h2.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.glassfish.jersey.containers</groupId>
+            <artifactId>jersey-container-jetty-servlet</artifactId>
+            <version>${jersey-container-jetty-servlet.version}</version>
+        </dependency>
+    </dependencies>
 
-	<dependencyManagement>
-		<dependencies>
-			<dependency>
-				<groupId>org.jboss.arquillian</groupId>
-				<artifactId>arquillian-bom</artifactId>
-				<version>${arquillian_core.version}</version>
-				<scope>import</scope>
-				<type>pom</type>
-			</dependency>
-			<dependency>
-				<groupId>org.jboss.arquillian.extension</groupId>
-				<artifactId>arquillian-drone-bom</artifactId>
-				<version>${arquillian-drone-bom.version}</version>
-				<type>pom</type>
-				<scope>import</scope>
-			</dependency>
-		</dependencies>
-	</dependencyManagement>
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-war-plugin</artifactId>
+                <version>${maven-war-plugin.version}</version>
+                <configuration>
+                    <warSourceDirectory>src/main/webapp</warSourceDirectory>
+                    <failOnMissingWebXml>false</failOnMissingWebXml>
+                </configuration>
+            </plugin>
+        </plugins>
+        <pluginManagement>
+            <plugins>
+                <!--This plugin's configuration is used to store Eclipse m2e settings
+                    only. It has no influence on the Maven build itself. -->
+                <plugin>
+                    <groupId>org.eclipse.m2e</groupId>
+                    <artifactId>lifecycle-mapping</artifactId>
+                    <version>1.0.0</version>
+                    <configuration>
+                        <lifecycleMappingMetadata>
+                            <pluginExecutions>
+                                <pluginExecution>
+                                    <pluginExecutionFilter>
+                                        <groupId>
+                                            org.apache.maven.plugins
+                                        </groupId>
+                                        <artifactId>
+                                            maven-pmd-plugin
+                                        </artifactId>
+                                        <versionRange>
+                                            [3.8,)
+                                        </versionRange>
+                                        <goals>
+                                            <goal>check</goal>
+                                        </goals>
+                                    </pluginExecutionFilter>
+                                    <action>
+                                        <ignore></ignore>
+                                    </action>
+                                </pluginExecution>
+                            </pluginExecutions>
+                        </lifecycleMappingMetadata>
+                    </configuration>
+                </plugin>
+            </plugins>
+        </pluginManagement>
+    </build>
 
-	<profiles>
-		<profile>
-			<id>wildfly-managed-arquillian</id>
-			<activation>
-				<activeByDefault>true</activeByDefault>
-			</activation>
-			<properties>
-				<serverProfile>standalone-full.xml</serverProfile>
-				<serverRoot>${project.build.directory}/wildfly-${version.wildfly}</serverRoot>
-			</properties>
-			<dependencies>
-				<dependency>
-					<groupId>io.undertow</groupId>
-					<artifactId>undertow-websockets-jsr</artifactId>
-					<version>${undertow-websockets-jsr.version}</version>
-					<scope>test</scope>
-				</dependency>
-				<dependency>
-					<groupId>org.jboss.resteasy</groupId>
-					<artifactId>resteasy-client</artifactId>
-					<version>${resteasy.version}</version>
-					<scope>test</scope>
-				</dependency>
-				<dependency>
-					<groupId>org.jboss.resteasy</groupId>
-					<artifactId>resteasy-jaxb-provider</artifactId>
-					<version>${resteasy.version}</version>
-					<scope>test</scope>
-				</dependency>
-				<dependency>
-					<groupId>org.jboss.resteasy</groupId>
-					<artifactId>resteasy-json-p-provider</artifactId>
-					<version>${resteasy.version}</version>
-					<scope>test</scope>
-				</dependency>
-				<dependency>
-					<groupId>org.wildfly</groupId>
-					<artifactId>wildfly-arquillian-container-managed</artifactId>
-					<version>${wildfly.version}</version>
-					<scope>test</scope>
-					<exclusions>
-						<exclusion>
-							<groupId>sun.jdk</groupId>
-							<artifactId>jconsole</artifactId>
-						</exclusion>
-					</exclusions>
-				</dependency>
-			</dependencies>
+    <profiles>
+        <profile>
+            <id>wildfly-managed-arquillian</id>
+            <activation>
+                <activeByDefault>true</activeByDefault>
+            </activation>
+            <properties>
+                <serverProfile>standalone-full.xml</serverProfile>
+                <serverRoot>${project.build.directory}/wildfly-${version.wildfly}</serverRoot>
+            </properties>
+            <dependencies>
+                <dependency>
+                    <groupId>io.undertow</groupId>
+                    <artifactId>undertow-websockets-jsr</artifactId>
+                    <version>${undertow-websockets-jsr.version}</version>
+                    <scope>test</scope>
+                </dependency>
+                <dependency>
+                    <groupId>org.jboss.resteasy</groupId>
+                    <artifactId>resteasy-client</artifactId>
+                    <version>${resteasy.version}</version>
+                    <scope>test</scope>
+                </dependency>
+                <dependency>
+                    <groupId>org.jboss.resteasy</groupId>
+                    <artifactId>resteasy-jaxb-provider</artifactId>
+                    <version>${resteasy.version}</version>
+                    <scope>test</scope>
+                </dependency>
+                <dependency>
+                    <groupId>org.jboss.resteasy</groupId>
+                    <artifactId>resteasy-json-p-provider</artifactId>
+                    <version>${resteasy.version}</version>
+                    <scope>test</scope>
+                </dependency>
+                <dependency>
+                    <groupId>org.wildfly</groupId>
+                    <artifactId>wildfly-arquillian-container-managed</artifactId>
+                    <version>${wildfly.version}</version>
+                    <scope>test</scope>
+                    <exclusions>
+                        <exclusion>
+                            <groupId>sun.jdk</groupId>
+                            <artifactId>jconsole</artifactId>
+                        </exclusion>
+                    </exclusions>
+                </dependency>
+            </dependencies>
 
-			<build>
-				<pluginManagement>
-					<plugins>
-						<plugin>
-							<artifactId>maven-dependency-plugin</artifactId>
-							<version>${maven-dependency-plugin.version}</version>
-							<configuration>
-								<skip>${maven.test.skip}</skip>
-							</configuration>
-							<executions>
-								<execution>
-									<id>unpack</id>
-									<phase>process-test-classes</phase>
-									<goals>
-										<goal>unpack</goal>
-									</goals>
-									<configuration>
-										<artifactItems>
-											<artifactItem>
-												<groupId>org.wildfly</groupId>
-												<artifactId>wildfly-dist</artifactId>
-												<version>${wildfly.version}</version>
-												<type>zip</type>
-												<overWrite>false</overWrite>
-												<outputDirectory>${project.build.directory}</outputDirectory>
-												<exclusions>
-													<exclusion>
-														<groupId>sun.jdk</groupId>
-														<artifactId>jconsole</artifactId>
-													</exclusion>
-												</exclusions>
-											</artifactItem>
-										</artifactItems>
-									</configuration>
-								</execution>
-							</executions>
-						</plugin>
-						<plugin>
-							<artifactId>maven-surefire-plugin</artifactId>
-							<version>${maven-surefire-plugin.version}</version>
-							<configuration>
-								<environmentVariables>
-									<JBOSS_HOME>${project.build.directory}/wildfly-${wildfly.version}</JBOSS_HOME>
-								</environmentVariables>
-							</configuration>
-						</plugin>
-					</plugins>
-				</pluginManagement>
-			</build>
-		</profile>
-		<profile>
-			<id>wildfly-remote-arquillian</id>
-			<dependencies>
-				<dependency>
-					<groupId>io.undertow</groupId>
-					<artifactId>undertow-websockets-jsr</artifactId>
-					<version>${undertow-websockets-jsr.version}</version>
-					<scope>test</scope>
-				</dependency>
-				<dependency>
-					<groupId>org.jboss.resteasy</groupId>
-					<artifactId>resteasy-client</artifactId>
-					<version>${resteasy.version}</version>
-					<scope>test</scope>
-				</dependency>
-				<dependency>
-					<groupId>org.jboss.resteasy</groupId>
-					<artifactId>resteasy-jaxb-provider</artifactId>
-					<version>${resteasy.version}</version>
-					<scope>test</scope>
-				</dependency>
-				<dependency>
-					<groupId>org.jboss.resteasy</groupId>
-					<artifactId>resteasy-json-p-provider</artifactId>
-					<version>${resteasy.version}</version>
-					<scope>test</scope>
-				</dependency>
-				<dependency>
-					<groupId>org.wildfly</groupId>
-					<artifactId>wildfly-arquillian-container-remote</artifactId>
-					<version>${wildfly.version}</version>
-					<scope>test</scope>
-					<exclusions>
-						<exclusion>
-							<groupId>sun.jdk</groupId>
-							<artifactId>jconsole</artifactId>
-						</exclusion>
-					</exclusions>
-				</dependency>
-			</dependencies>
-		</profile>
-		<profile>
-			<id>glassfish-embedded-arquillian</id>
-			<dependencies>
-				<dependency>
-					<groupId>org.glassfish.main.extras</groupId>
-					<artifactId>glassfish-embedded-all</artifactId>
-					<version>${glassfish-embedded-all.version}</version>
-					<scope>test</scope>
-				</dependency>
-				<dependency>
-					<groupId>org.glassfish</groupId>
-					<artifactId>javax.json</artifactId>
-					<version>${javax.json.version}</version>
-					<scope>test</scope>
-				</dependency>
-				<dependency>
-					<groupId>org.glassfish.tyrus</groupId>
-					<artifactId>tyrus-client</artifactId>
-					<version>${tyrus.version}</version>
-					<scope>test</scope>
-				</dependency>
-				<dependency>
-					<groupId>org.glassfish.tyrus</groupId>
-					<artifactId>tyrus-container-grizzly-client</artifactId>
-					<version>${tyrus.version}</version>
-					<scope>test</scope>
-				</dependency>
-				<dependency>
-					<groupId>org.glassfish.jersey.core</groupId>
-					<artifactId>jersey-client</artifactId>
-					<version>${jersey.version}</version>
-					<scope>test</scope>
-				</dependency>
-				<dependency>
-					<groupId>org.jboss.arquillian.container</groupId>
-					<artifactId>arquillian-glassfish-embedded-3.1</artifactId>
-					<version>${arquillian-glassfish.version}</version>
-					<scope>test</scope>
-				</dependency>
-			</dependencies>
-		</profile>
-		<profile>
-			<id>glassfish-remote-arquillian</id>
-			<dependencies>
-				<dependency>
-					<groupId>org.glassfish</groupId>
-					<artifactId>javax.json</artifactId>
-					<version>${javax.json.version}</version>
-					<scope>test</scope>
-				</dependency>
-				<dependency>
-					<groupId>org.glassfish.tyrus</groupId>
-					<artifactId>tyrus-client</artifactId>
-					<version>${tyrus.version}</version>
-					<scope>test</scope>
-				</dependency>
-				<dependency>
-					<groupId>org.glassfish.tyrus</groupId>
-					<artifactId>tyrus-container-grizzly-client</artifactId>
-					<version>${tyrus.version}</version>
-					<scope>test</scope>
-				</dependency>
-				<dependency>
-					<groupId>org.glassfish.jersey.core</groupId>
-					<artifactId>jersey-client</artifactId>
-					<version>${jersey.version}</version>
-					<scope>test</scope>
-				</dependency>
-				<dependency>
-					<groupId>org.glassfish.jersey.media</groupId>
-					<artifactId>jersey-media-json-jackson</artifactId>
-					<version>${jersey.version}</version>
-					<scope>test</scope>
-				</dependency>
-				<dependency>
-					<groupId>org.glassfish.jersey.media</groupId>
-					<artifactId>jersey-media-json-processing</artifactId>
-					<version>${jersey.version}</version>
-					<scope>test</scope>
-				</dependency>
-				<dependency>
-					<groupId>org.jboss.arquillian.container</groupId>
-					<artifactId>arquillian-glassfish-remote-3.1</artifactId>
-					<version>${arquillian-glassfish.version}</version>
-					<scope>test</scope>
-				</dependency>
-			</dependencies>
-		</profile>
-		<profile>
-			<id>webdriver-chrome</id>
-			<activation>
-				<activeByDefault>true</activeByDefault>
-			</activation>
-			<properties>
-				<browser>chrome</browser>
-			</properties>
-		</profile>
-		<profile>
-			<id>webdriver-firefox</id>
-			<properties>
-				<browser>firefox</browser>
-			</properties>
-		</profile>
-	</profiles>
+            <build>
+                <pluginManagement>
+                    <plugins>
+                        <plugin>
+                            <artifactId>maven-dependency-plugin</artifactId>
+                            <version>${maven-dependency-plugin.version}</version>
+                            <configuration>
+                                <skip>${maven.test.skip}</skip>
+                            </configuration>
+                            <executions>
+                                <execution>
+                                    <id>unpack</id>
+                                    <phase>process-test-classes</phase>
+                                    <goals>
+                                        <goal>unpack</goal>
+                                    </goals>
+                                    <configuration>
+                                        <artifactItems>
+                                            <artifactItem>
+                                                <groupId>org.wildfly</groupId>
+                                                <artifactId>wildfly-dist</artifactId>
+                                                <version>${wildfly.version}</version>
+                                                <type>zip</type>
+                                                <overWrite>false</overWrite>
+                                                <outputDirectory>${project.build.directory}</outputDirectory>
+                                                <exclusions>
+                                                    <exclusion>
+                                                        <groupId>sun.jdk</groupId>
+                                                        <artifactId>jconsole</artifactId>
+                                                    </exclusion>
+                                                </exclusions>
+                                            </artifactItem>
+                                        </artifactItems>
+                                    </configuration>
+                                </execution>
+                            </executions>
+                        </plugin>
+                        <plugin>
+                            <artifactId>maven-surefire-plugin</artifactId>
+                            <version>${maven-surefire-plugin.version}</version>
+                            <configuration>
+                                <environmentVariables>
+                                    <JBOSS_HOME>${project.build.directory}/wildfly-${wildfly.version}</JBOSS_HOME>
+                                </environmentVariables>
+                            </configuration>
+                        </plugin>
+                    </plugins>
+                </pluginManagement>
+            </build>
+        </profile>
+        <profile>
+            <id>wildfly-remote-arquillian</id>
+            <dependencies>
+                <dependency>
+                    <groupId>io.undertow</groupId>
+                    <artifactId>undertow-websockets-jsr</artifactId>
+                    <version>${undertow-websockets-jsr.version}</version>
+                    <scope>test</scope>
+                </dependency>
+                <dependency>
+                    <groupId>org.jboss.resteasy</groupId>
+                    <artifactId>resteasy-client</artifactId>
+                    <version>${resteasy.version}</version>
+                    <scope>test</scope>
+                </dependency>
+                <dependency>
+                    <groupId>org.jboss.resteasy</groupId>
+                    <artifactId>resteasy-jaxb-provider</artifactId>
+                    <version>${resteasy.version}</version>
+                    <scope>test</scope>
+                </dependency>
+                <dependency>
+                    <groupId>org.jboss.resteasy</groupId>
+                    <artifactId>resteasy-json-p-provider</artifactId>
+                    <version>${resteasy.version}</version>
+                    <scope>test</scope>
+                </dependency>
+                <dependency>
+                    <groupId>org.wildfly</groupId>
+                    <artifactId>wildfly-arquillian-container-remote</artifactId>
+                    <version>${wildfly.version}</version>
+                    <scope>test</scope>
+                    <exclusions>
+                        <exclusion>
+                            <groupId>sun.jdk</groupId>
+                            <artifactId>jconsole</artifactId>
+                        </exclusion>
+                    </exclusions>
+                </dependency>
+            </dependencies>
+        </profile>
+        <profile>
+            <id>glassfish-embedded-arquillian</id>
+            <dependencies>
+                <dependency>
+                    <groupId>org.glassfish.main.extras</groupId>
+                    <artifactId>glassfish-embedded-all</artifactId>
+                    <version>${glassfish-embedded-all.version}</version>
+                    <scope>test</scope>
+                </dependency>
+                <dependency>
+                    <groupId>org.glassfish</groupId>
+                    <artifactId>javax.json</artifactId>
+                    <version>${javax.json.version}</version>
+                    <scope>test</scope>
+                </dependency>
+                <dependency>
+                    <groupId>org.glassfish.tyrus</groupId>
+                    <artifactId>tyrus-client</artifactId>
+                    <version>${tyrus.version}</version>
+                    <scope>test</scope>
+                </dependency>
+                <dependency>
+                    <groupId>org.glassfish.tyrus</groupId>
+                    <artifactId>tyrus-container-grizzly-client</artifactId>
+                    <version>${tyrus.version}</version>
+                    <scope>test</scope>
+                </dependency>
+                <dependency>
+                    <groupId>org.glassfish.jersey.core</groupId>
+                    <artifactId>jersey-client</artifactId>
+                    <version>${jersey.version}</version>
+                    <scope>test</scope>
+                </dependency>
+                <dependency>
+                    <groupId>org.jboss.arquillian.container</groupId>
+                    <artifactId>arquillian-glassfish-embedded-3.1</artifactId>
+                    <version>${arquillian-glassfish.version}</version>
+                    <scope>test</scope>
+                </dependency>
+            </dependencies>
+        </profile>
+        <profile>
+            <id>glassfish-remote-arquillian</id>
+            <dependencies>
+                <dependency>
+                    <groupId>org.glassfish</groupId>
+                    <artifactId>javax.json</artifactId>
+                    <version>${javax.json.version}</version>
+                    <scope>test</scope>
+                </dependency>
+                <dependency>
+                    <groupId>org.glassfish.tyrus</groupId>
+                    <artifactId>tyrus-client</artifactId>
+                    <version>${tyrus.version}</version>
+                    <scope>test</scope>
+                </dependency>
+                <dependency>
+                    <groupId>org.glassfish.tyrus</groupId>
+                    <artifactId>tyrus-container-grizzly-client</artifactId>
+                    <version>${tyrus.version}</version>
+                    <scope>test</scope>
+                </dependency>
+                <dependency>
+                    <groupId>org.glassfish.jersey.core</groupId>
+                    <artifactId>jersey-client</artifactId>
+                    <version>${jersey.version}</version>
+                    <scope>test</scope>
+                </dependency>
+                <dependency>
+                    <groupId>org.glassfish.jersey.media</groupId>
+                    <artifactId>jersey-media-json-jackson</artifactId>
+                    <version>${jersey.version}</version>
+                    <scope>test</scope>
+                </dependency>
+                <dependency>
+                    <groupId>org.glassfish.jersey.media</groupId>
+                    <artifactId>jersey-media-json-processing</artifactId>
+                    <version>${jersey.version}</version>
+                    <scope>test</scope>
+                </dependency>
+                <dependency>
+                    <groupId>org.jboss.arquillian.container</groupId>
+                    <artifactId>arquillian-glassfish-remote-3.1</artifactId>
+                    <version>${arquillian-glassfish.version}</version>
+                    <scope>test</scope>
+                </dependency>
+            </dependencies>
+        </profile>
+        <profile>
+            <id>webdriver-chrome</id>
+            <activation>
+                <activeByDefault>true</activeByDefault>
+            </activation>
+            <properties>
+                <browser>chrome</browser>
+            </properties>
+        </profile>
+        <profile>
+            <id>webdriver-firefox</id>
+            <properties>
+                <browser>firefox</browser>
+            </properties>
+        </profile>
+    </profiles>
 
-	<repositories>
-		<repository>
-			<id>bintray-mvc-spec-maven</id>
-			<name>bintray</name>
-			<url>http://dl.bintray.com/mvc-spec/maven</url>
-			<releases>
-				<enabled>true</enabled>
-			</releases>
-			<snapshots>
-				<enabled>false</enabled>
-			</snapshots>
-		</repository>
-	</repositories>
+    <repositories>
+        <repository>
+            <id>bintray-mvc-spec-maven</id>
+            <name>bintray</name>
+            <url>http://dl.bintray.com/mvc-spec/maven</url>
+            <releases>
+                <enabled>true</enabled>
+            </releases>
+            <snapshots>
+                <enabled>false</enabled>
+            </snapshots>
+        </repository>
+    </repositories>
 
-	<properties>
-		<java.min.version>1.8</java.min.version>
-		<maven.min.version>3.0.0</maven.min.version>
-		<javaee_api.version>7.0</javaee_api.version>
-		<arquillian_core.version>1.1.11.Final</arquillian_core.version>
-		<wildfly.version>8.2.1.Final</wildfly.version>
-		<awaitility.version>1.7.0</awaitility.version>
-		<undertow-websockets-jsr.version>1.4.6.Final</undertow-websockets-jsr.version>
-		<resteasy.version>3.0.19.Final</resteasy.version>
-		<glassfish-embedded-all.version>4.1.1</glassfish-embedded-all.version>
-		<javax.json.version>1.0.4</javax.json.version>
-		<tyrus.version>1.13</tyrus.version>
-		<jersey.version>2.25</jersey.version>
-		<arquillian-glassfish.version>1.0.0.Final</arquillian-glassfish.version>
-		<org.springframework.security.version>4.2.3.RELEASE</org.springframework.security.version>
-		<maven-surefire-plugin.version>2.21.0</maven-surefire-plugin.version>
-		<taglibs.standard.version>1.1.2</taglibs.standard.version>
-		<com.sun.faces.jsf.version>2.2.14</com.sun.faces.jsf.version>
-		<httpclient.version>4.5</httpclient.version>
-		<arquillian-drone-bom.version>2.0.1.Final</arquillian-drone-bom.version>
-		<graphene-webdriver.version>2.1.0.Final</graphene-webdriver.version>
-		<maven-dependency-plugin.version>2.8</maven-dependency-plugin.version>
-		<jsp-api.version>2.2</jsp-api.version>
-		<ozark.version>20160715</ozark.version>
-		<jboss-batch-api.version>1.0.0.Final</jboss-batch-api.version>
-		<jberet.version>1.0.2.Final</jberet.version>
-		<jboss-transaction-api.version>1.0.0.Final</jboss-transaction-api.version>
-		<jboss-marshalling.version>1.4.2.Final</jboss-marshalling.version>
-		<weld.version>2.1.1.Final</weld.version>
-		<jersey-container-jetty-servlet.version>2.22.1</jersey-container-jetty-servlet.version>
-	</properties>
+    <properties>
+        <java.min.version>1.8</java.min.version>
+        <maven.min.version>3.0.0</maven.min.version>
+        <javaee_api.version>7.0</javaee_api.version>
+        <arquillian_core.version>1.1.11.Final</arquillian_core.version>
+        <wildfly.version>8.2.1.Final</wildfly.version>
+        <awaitility.version>1.7.0</awaitility.version>
+        <undertow-websockets-jsr.version>1.4.6.Final</undertow-websockets-jsr.version>
+        <resteasy.version>3.0.19.Final</resteasy.version>
+        <glassfish-embedded-all.version>4.1.1</glassfish-embedded-all.version>
+        <javax.json.version>1.0.4</javax.json.version>
+        <tyrus.version>1.13</tyrus.version>
+        <jersey.version>2.25</jersey.version>
+        <arquillian-glassfish.version>1.0.0.Final</arquillian-glassfish.version>
+        <org.springframework.security.version>4.2.3.RELEASE</org.springframework.security.version>
+        <maven-surefire-plugin.version>2.21.0</maven-surefire-plugin.version>
+        <taglibs.standard.version>1.1.2</taglibs.standard.version>
+        <com.sun.faces.jsf.version>2.2.14</com.sun.faces.jsf.version>
+        <httpclient.version>4.5</httpclient.version>
+        <arquillian-drone-bom.version>2.0.1.Final</arquillian-drone-bom.version>
+        <graphene-webdriver.version>2.1.0.Final</graphene-webdriver.version>
+        <maven-dependency-plugin.version>2.8</maven-dependency-plugin.version>
+        <jsp-api.version>2.2</jsp-api.version>
+        <ozark.version>20160715</ozark.version>
+        <jboss-batch-api.version>1.0.0.Final</jboss-batch-api.version>
+        <jberet.version>1.0.2.Final</jberet.version>
+        <jboss-transaction-api.version>1.0.0.Final</jboss-transaction-api.version>
+        <jboss-marshalling.version>1.4.2.Final</jboss-marshalling.version>
+        <weld.version>2.1.1.Final</weld.version>
+        <jersey-container-jetty-servlet.version>2.22.1</jersey-container-jetty-servlet.version>
+    </properties>
 
 </project>
diff --git a/jee-kotlin/pom.xml b/jee-kotlin/pom.xml
index 60765f6bc2..80c5ea4e22 100644
--- a/jee-kotlin/pom.xml
+++ b/jee-kotlin/pom.xml
@@ -1,17 +1,36 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
-
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>jee-kotlin</artifactId>
     <name>jee-kotlin</name>
     <packaging>war</packaging>
-	
+
     <parent>
-        <artifactId>parent-modules</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-modules</artifactId>
         <version>1.0.0-SNAPSHOT</version>
     </parent>
 
+    <dependencyManagement>
+        <dependencies>
+            <dependency>
+                <groupId>org.jboss.arquillian</groupId>
+                <artifactId>arquillian-bom</artifactId>
+                <version>${arquillian_core.version}</version>
+                <scope>import</scope>
+                <type>pom</type>
+            </dependency>
+            <dependency>
+                <groupId>org.jboss.arquillian.extension</groupId>
+                <artifactId>arquillian-drone-bom</artifactId>
+                <version>${arquillian-drone-bom.version}</version>
+                <type>pom</type>
+                <scope>import</scope>
+            </dependency>
+        </dependencies>
+    </dependencyManagement>
+
     <dependencies>
         <dependency>
             <groupId>org.jetbrains.kotlin</groupId>
@@ -144,25 +163,6 @@
         </plugins>
     </build>
 
-    <dependencyManagement>
-        <dependencies>
-            <dependency>
-                <groupId>org.jboss.arquillian</groupId>
-                <artifactId>arquillian-bom</artifactId>
-                <version>${arquillian_core.version}</version>
-                <scope>import</scope>
-                <type>pom</type>
-            </dependency>
-            <dependency>
-                <groupId>org.jboss.arquillian.extension</groupId>
-                <artifactId>arquillian-drone-bom</artifactId>
-                <version>${arquillian-drone-bom.version}</version>
-                <type>pom</type>
-                <scope>import</scope>
-            </dependency>
-        </dependencies>
-    </dependencyManagement>
-
     <profiles>
         <profile>
             <id>wildfly-managed-arquillian</id>
@@ -265,12 +265,10 @@
         <failOnMissingWebXml>false</failOnMissingWebXml>
         <javaee-api.version>8.0</javaee-api.version>
 
-
         <kotlin.version>1.3.41</kotlin.version>
         <kotlin.code.style>official</kotlin.code.style>
         <kotlin.compiler.incremental>true</kotlin.compiler.incremental>
 
-
         <wildfly.version>8.2.1.Final</wildfly.version>
         <maven-surefire-plugin.version>2.21.0</maven-surefire-plugin.version>
         <maven-dependency-plugin.version>3.1.1</maven-dependency-plugin.version>
@@ -283,4 +281,5 @@
         <shrinkwrap.version>3.1.3</shrinkwrap.version>
 
     </properties>
+
 </project>
diff --git a/jenkins/plugins/pom.xml b/jenkins/plugins/pom.xml
index 1db7cec394..c4caf5567f 100644
--- a/jenkins/plugins/pom.xml
+++ b/jenkins/plugins/pom.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>plugins</artifactId>
     <version>1.0-SNAPSHOT</version>
@@ -12,7 +12,7 @@
         <groupId>org.jenkins-ci.plugins</groupId>
         <artifactId>plugin</artifactId>
         <version>2.33</version>
-        <relativePath />
+        <relativePath/>
     </parent>
 
     <dependencies>
@@ -91,6 +91,6 @@
         <workflow-durable-task-step.version>2.13</workflow-durable-task-step.version>
         <workflow-api.version>2.20</workflow-api.version>
         <workflow-support.version>2.14</workflow-support.version>
-
     </properties>
+
 </project>
diff --git a/jersey/pom.xml b/jersey/pom.xml
index 0b4d469e3a..065e2230a2 100644
--- a/jersey/pom.xml
+++ b/jersey/pom.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0"?>
 <project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd" xmlns="http://maven.apache.org/POM/4.0.0"
-    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>jersey</artifactId>
     <version>0.0.1-SNAPSHOT</version>
diff --git a/jgit/pom.xml b/jgit/pom.xml
index b79a56315f..eef3c9b8e8 100644
--- a/jgit/pom.xml
+++ b/jgit/pom.xml
@@ -1,10 +1,10 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>JGit</artifactId>
     <version>1.0-SNAPSHOT</version>
-	<name>JGit</name>
+    <name>JGit</name>
     <packaging>jar</packaging>
     <url>http://maven.apache.org</url>
 
diff --git a/jgroups/pom.xml b/jgroups/pom.xml
index e95fe2be3c..494de2fb4f 100644
--- a/jgroups/pom.xml
+++ b/jgroups/pom.xml
@@ -1,12 +1,12 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>jgroups</artifactId>
     <version>0.1-SNAPSHOT</version>
     <name>jgroups</name>
-    <description>Reliable Messaging with JGroups Tutorial</description>
     <packaging>jar</packaging>
+    <description>Reliable Messaging with JGroups Tutorial</description>
 
     <parent>
         <groupId>com.baeldung</groupId>
diff --git a/jib/pom.xml b/jib/pom.xml
index 2341fcca0c..1d7413cc18 100644
--- a/jib/pom.xml
+++ b/jib/pom.xml
@@ -1,13 +1,14 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>jib</artifactId>
     <version>0.1-SNAPSHOT</version>
     <name>jib</name>
 
     <parent>
-        <artifactId>parent-boot-2</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-2</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../parent-boot-2</relativePath>
     </parent>
@@ -18,7 +19,7 @@
             <artifactId>spring-boot-starter-web</artifactId>
         </dependency>
     </dependencies>
-	
+
     <build>
         <plugins>
             <plugin>
@@ -39,6 +40,6 @@
     </build>
 
     <properties>
-		<jib-maven-plugin.version>0.9.10</jib-maven-plugin.version>
+        <jib-maven-plugin.version>0.9.10</jib-maven-plugin.version>
     </properties>
 </project>
diff --git a/jjwt/pom.xml b/jjwt/pom.xml
index 7459853155..073f12a922 100644
--- a/jjwt/pom.xml
+++ b/jjwt/pom.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <groupId>io.jsonwebtoken</groupId>
     <artifactId>jjwt</artifactId>
@@ -9,8 +9,8 @@
     <description>Exercising the JJWT</description>
 
     <parent>
-        <artifactId>parent-boot-1</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-1</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../parent-boot-1</relativePath>
     </parent>
diff --git a/jmeter/pom.xml b/jmeter/pom.xml
index 4bc828f106..64642695ff 100644
--- a/jmeter/pom.xml
+++ b/jmeter/pom.xml
@@ -1,15 +1,15 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>jmeter</artifactId>
     <name>jmeter</name>
-    <description>Intro to Performance testing using JMeter</description>
     <packaging>jar</packaging>
+    <description>Intro to Performance testing using JMeter</description>
 
     <parent>
-        <artifactId>parent-boot-1</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-1</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../parent-boot-1</relativePath>
     </parent>
diff --git a/jmh/pom.xml b/jmh/pom.xml
index 61222da71c..735198036e 100644
--- a/jmh/pom.xml
+++ b/jmh/pom.xml
@@ -1,5 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>jmh</artifactId>
     <version>1.0-SNAPSHOT</version>
diff --git a/jni/pom.xml b/jni/pom.xml
index 4850e07ed7..d64fa12c5a 100644
--- a/jni/pom.xml
+++ b/jni/pom.xml
@@ -1,13 +1,14 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>jni</artifactId>
     <name>jni</name>
-    
-	<parent>
-		<groupId>com.baeldung</groupId>
-		<artifactId>parent-modules</artifactId>
-		<version>1.0.0-SNAPSHOT</version>
-	</parent>
+
+    <parent>
+        <groupId>com.baeldung</groupId>
+        <artifactId>parent-modules</artifactId>
+        <version>1.0.0-SNAPSHOT</version>
+    </parent>
 
 </project>
\ No newline at end of file
diff --git a/jooby/pom.xml b/jooby/pom.xml
index 83dd650701..fe26f9a4c6 100644
--- a/jooby/pom.xml
+++ b/jooby/pom.xml
@@ -1,63 +1,63 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
-	<modelVersion>4.0.0</modelVersion>
-	<artifactId>jooby</artifactId>
-	<groupId>com.baeldung.jooby</groupId>
-	<version>1.0</version>
-	<name>jooby</name>
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <groupId>com.baeldung.jooby</groupId>
+    <artifactId>jooby</artifactId>
+    <version>1.0</version>
+    <name>jooby</name>
 
-	<parent>
-		<groupId>com.baeldung</groupId>
-		<artifactId>parent-modules</artifactId>
-		<version>1.0.0-SNAPSHOT</version>
-	</parent>
+    <parent>
+        <groupId>com.baeldung</groupId>
+        <artifactId>parent-modules</artifactId>
+        <version>1.0.0-SNAPSHOT</version>
+    </parent>
 
-	<dependencyManagement>
-		<dependencies>
-			<dependency>
-				<groupId>org.jooby</groupId>
-				<artifactId>modules</artifactId>
-				<version>${jooby.version}</version>
-				<type>pom</type>
-			</dependency>
-		</dependencies>
-	</dependencyManagement>
+    <dependencyManagement>
+        <dependencies>
+            <dependency>
+                <groupId>org.jooby</groupId>
+                <artifactId>modules</artifactId>
+                <version>${jooby.version}</version>
+                <type>pom</type>
+            </dependency>
+        </dependencies>
+    </dependencyManagement>
 
-	<dependencies>
-		<dependency>
-			<groupId>org.jooby</groupId>
-			<artifactId>jooby-netty</artifactId>
-			<version>${jooby.version}</version>
-		</dependency>
-		<dependency>
-			<groupId>org.jooby</groupId>
-			<artifactId>jooby-jedis</artifactId>
-			<version>${jooby.version}</version>
-		</dependency>
-		<dependency>
-			<groupId>io.rest-assured</groupId>
-			<artifactId>rest-assured</artifactId>
-			<scope>test</scope>
-			<version>${rest-assured.version}</version>
-		</dependency>
-	</dependencies>
+    <dependencies>
+        <dependency>
+            <groupId>org.jooby</groupId>
+            <artifactId>jooby-netty</artifactId>
+            <version>${jooby.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.jooby</groupId>
+            <artifactId>jooby-jedis</artifactId>
+            <version>${jooby.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>io.rest-assured</groupId>
+            <artifactId>rest-assured</artifactId>
+            <scope>test</scope>
+            <version>${rest-assured.version}</version>
+        </dependency>
+    </dependencies>
 
-	<build>
-		<plugins>
-			<plugin>
-				<groupId>org.apache.maven.plugins</groupId>
-				<artifactId>maven-shade-plugin</artifactId>
-				<version>${maven-shade-plugin.version}</version>
-			</plugin>
-		</plugins>
-	</build>
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-shade-plugin</artifactId>
+                <version>${maven-shade-plugin.version}</version>
+            </plugin>
+        </plugins>
+    </build>
 
-	<properties>
-		<jooby.version>1.1.3</jooby.version>
-		<rest-assured.version>3.1.1</rest-assured.version>
-		<application.class>com.baeldung.jooby.App</application.class>
-		<maven-shade-plugin.version>2.4.3</maven-shade-plugin.version>
-	</properties>
+    <properties>
+        <jooby.version>1.1.3</jooby.version>
+        <rest-assured.version>3.1.1</rest-assured.version>
+        <application.class>com.baeldung.jooby.App</application.class>
+        <maven-shade-plugin.version>2.4.3</maven-shade-plugin.version>
+    </properties>
 
 </project>
diff --git a/jsf/pom.xml b/jsf/pom.xml
index 0298036dac..dc110b9fd5 100644
--- a/jsf/pom.xml
+++ b/jsf/pom.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>jsf</artifactId>
     <version>0.1-SNAPSHOT</version>
@@ -8,8 +8,8 @@
     <packaging>war</packaging>
 
     <parent>
-        <artifactId>parent-modules</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-modules</artifactId>
         <version>1.0.0-SNAPSHOT</version>
     </parent>
 
diff --git a/json-path/pom.xml b/json-path/pom.xml
index 0f8ff3bd31..8756ffee7b 100644
--- a/json-path/pom.xml
+++ b/json-path/pom.xml
@@ -1,5 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>json-path</artifactId>
     <version>0.0.1-SNAPSHOT</version>
diff --git a/json/pom.xml b/json/pom.xml
index 3ed13d0800..bd901b526e 100644
--- a/json/pom.xml
+++ b/json/pom.xml
@@ -1,11 +1,12 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <groupId>org.baeldung</groupId>
     <artifactId>json</artifactId>
     <version>0.0.1-SNAPSHOT</version>
     <name>json</name>
-    
+
     <parent>
         <groupId>com.baeldung</groupId>
         <artifactId>parent-modules</artifactId>
@@ -44,7 +45,7 @@
             <artifactId>jackson-databind</artifactId>
             <version>${jackson.version}</version>
         </dependency>
-		<dependency>
+        <dependency>
             <groupId>javax.json.bind</groupId>
             <artifactId>javax.json.bind-api</artifactId>
             <version>${jsonb-api.version}</version>
@@ -54,12 +55,12 @@
             <artifactId>javax.json</artifactId>
             <version>${javax.version}</version>
         </dependency>
-		<dependency>
-			<groupId>org.eclipse</groupId>
-			<artifactId>yasson</artifactId>
-			<version>${yasson.version}</version>
+        <dependency>
+            <groupId>org.eclipse</groupId>
+            <artifactId>yasson</artifactId>
+            <version>${yasson.version}</version>
         </dependency>
-		<!-- utils -->
+        <!-- utils -->
         <dependency>
             <groupId>org.apache.commons</groupId>
             <artifactId>commons-collections4</artifactId>
@@ -80,10 +81,10 @@
         <jsonb-api.version>1.0</jsonb-api.version>
         <commons-collections4.version>4.1</commons-collections4.version>
         <yasson.version>1.0.1</yasson.version>
-		<json.version>20171018</json.version>
-		<gson.version>2.8.5</gson.version>
-		<javax.version>1.1.2</javax.version>
-		<assertj-core.version>3.11.1</assertj-core.version>
+        <json.version>20171018</json.version>
+        <gson.version>2.8.5</gson.version>
+        <javax.version>1.1.2</javax.version>
+        <assertj-core.version>3.11.1</assertj-core.version>
     </properties>
 
 </project>
diff --git a/jsoup/pom.xml b/jsoup/pom.xml
index f6e25e7a23..d2b59476f3 100644
--- a/jsoup/pom.xml
+++ b/jsoup/pom.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>jsoup</artifactId>
     <name>jsoup</name>
diff --git a/jta/pom.xml b/jta/pom.xml
index b6f1371629..8f90f74d43 100644
--- a/jta/pom.xml
+++ b/jta/pom.xml
@@ -9,8 +9,8 @@
     <description>JEE JTA demo</description>
 
     <parent>
-        <artifactId>parent-boot-2</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-2</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../parent-boot-2</relativePath>
     </parent>
diff --git a/jws/pom.xml b/jws/pom.xml
index 5c19c887d3..e6ab7e05ec 100644
--- a/jws/pom.xml
+++ b/jws/pom.xml
@@ -1,5 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <groupId>com.example</groupId>
     <artifactId>jws</artifactId>
@@ -13,12 +14,12 @@
         <version>1.0.0-SNAPSHOT</version>
     </parent>
 
-	<repositories>
-	    <repository>
-	        <id>OpenNMS Repository</id>
-	        <url>http://repo.opennms.org/maven2/</url>
-	    </repository>
-	</repositories>
+    <repositories>
+        <repository>
+            <id>OpenNMS Repository</id>
+            <url>http://repo.opennms.org/maven2/</url>
+        </repository>
+    </repositories>
 
     <dependencies>
         <dependency>
diff --git a/kotlin-libraries/pom.xml b/kotlin-libraries/pom.xml
index 5fb8049a8e..dfd1dc363f 100644
--- a/kotlin-libraries/pom.xml
+++ b/kotlin-libraries/pom.xml
@@ -92,7 +92,7 @@
         <dependency>
             <groupId>com.h2database</groupId>
             <artifactId>h2</artifactId>
-            </dependency>
+        </dependency>
         <!-- https://mvnrepository.com/artifact/io.arrow-kt/arrow-core -->
         <dependency>
             <groupId>io.arrow-kt</groupId>
diff --git a/kotlin-quasar/pom.xml b/kotlin-quasar/pom.xml
index 231b02b0c7..a12d27c565 100644
--- a/kotlin-quasar/pom.xml
+++ b/kotlin-quasar/pom.xml
@@ -2,15 +2,14 @@
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung</groupId>
     <artifactId>kotlin-quasar</artifactId>
     <version>1.0.0-SNAPSHOT</version>
     <name>kotlin-quasar</name>
     <packaging>jar</packaging>
 
     <parent>
-        <artifactId>parent-modules</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-modules</artifactId>
         <version>1.0.0-SNAPSHOT</version>
     </parent>
 
@@ -51,27 +50,27 @@
             <artifactId>junit</artifactId>
             <version>4.12</version>
         </dependency>
-		<!-- logging -->
-		<dependency>
-			<groupId>org.slf4j</groupId>
-			<artifactId>slf4j-api</artifactId>
-			<version>${org.slf4j.version}</version>
-		</dependency>
-		<dependency>
-			<groupId>ch.qos.logback</groupId>
-			<artifactId>logback-classic</artifactId>
-			<version>${logback.version}</version>
-		</dependency>
-		<dependency>
-			<groupId>ch.qos.logback</groupId>
-			<artifactId>logback-core</artifactId>
-			<version>${logback.version}</version>
-		</dependency>
-		<dependency>
-			<groupId>org.slf4j</groupId>
-			<artifactId>jcl-over-slf4j</artifactId>
-			<version>${org.slf4j.version}</version>
-		</dependency>
+        <!-- logging -->
+        <dependency>
+            <groupId>org.slf4j</groupId>
+            <artifactId>slf4j-api</artifactId>
+            <version>${org.slf4j.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>ch.qos.logback</groupId>
+            <artifactId>logback-classic</artifactId>
+            <version>${logback.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>ch.qos.logback</groupId>
+            <artifactId>logback-core</artifactId>
+            <version>${logback.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.slf4j</groupId>
+            <artifactId>jcl-over-slf4j</artifactId>
+            <version>${org.slf4j.version}</version>
+        </dependency>
     </dependencies>
 
     <build>
@@ -132,7 +131,8 @@
                     <executable>echo</executable>
                     <arguments>
                         <argument>-javaagent:${co.paralleluniverse:quasar-core:jar}</argument>
-                        <argument>-classpath</argument> <classpath/>
+                        <argument>-classpath</argument>
+                        <classpath/>
                         <argument>com.baeldung.quasar.QuasarHelloWorldKt</argument>
                     </arguments>
                 </configuration>
@@ -143,7 +143,8 @@
     <properties>
         <quasar.version>0.8.0</quasar.version>
         <kotlin.version>1.3.31</kotlin.version>
-		<org.slf4j.version>1.7.21</org.slf4j.version>
-		<logback.version>1.1.7</logback.version>
+        <org.slf4j.version>1.7.21</org.slf4j.version>
+        <logback.version>1.1.7</logback.version>
     </properties>
+
 </project>
diff --git a/libraries-2/pom.xml b/libraries-2/pom.xml
index 1ffaf0bbd7..474ff563c2 100644
--- a/libraries-2/pom.xml
+++ b/libraries-2/pom.xml
@@ -159,4 +159,5 @@
         <spring.version>5.1.9.RELEASE</spring.version>
         <hsqldb.version>2.5.0</hsqldb.version>
     </properties>
+
 </project>
diff --git a/libraries-apache-commons-collections/pom.xml b/libraries-apache-commons-collections/pom.xml
index eba0ad331e..2209874c66 100644
--- a/libraries-apache-commons-collections/pom.xml
+++ b/libraries-apache-commons-collections/pom.xml
@@ -1,13 +1,13 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>libraries-apache-commons-collections</artifactId>
     <name>libraries-apache-commons-collections</name>
 
     <parent>
-        <artifactId>parent-modules</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-modules</artifactId>
         <version>1.0.0-SNAPSHOT</version>
     </parent>
 
diff --git a/libraries-apache-commons-io/pom.xml b/libraries-apache-commons-io/pom.xml
index 7ec71d8264..21f3f16cd3 100644
--- a/libraries-apache-commons-io/pom.xml
+++ b/libraries-apache-commons-io/pom.xml
@@ -1,13 +1,13 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>libraries-apache-commons-io</artifactId>
     <name>libraries-apache-commons-io</name>
 
     <parent>
-        <artifactId>parent-modules</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-modules</artifactId>
         <version>1.0.0-SNAPSHOT</version>
     </parent>
 
diff --git a/libraries-apache-commons/pom.xml b/libraries-apache-commons/pom.xml
index a6dc82b479..688a500c4a 100644
--- a/libraries-apache-commons/pom.xml
+++ b/libraries-apache-commons/pom.xml
@@ -1,13 +1,13 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>libraries-apache-commons</artifactId>
     <name>libraries-apache-commons</name>
 
     <parent>
-        <artifactId>parent-modules</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-modules</artifactId>
         <version>1.0.0-SNAPSHOT</version>
     </parent>
 
@@ -51,7 +51,7 @@
             <groupId>com.h2database</groupId>
             <artifactId>h2</artifactId>
             <version>${h2.version}</version>
-        </dependency>        
+        </dependency>
         <dependency>
             <groupId>org.knowm.xchart</groupId>
             <artifactId>xchart</artifactId>
diff --git a/libraries-data-2/pom.xml b/libraries-data-2/pom.xml
index 00c6f1b4fc..e6106c0fe3 100644
--- a/libraries-data-2/pom.xml
+++ b/libraries-data-2/pom.xml
@@ -2,7 +2,6 @@
 <project xmlns="http://maven.apache.org/POM/4.0.0"
          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
-
     <modelVersion>4.0.0</modelVersion>
     <artifactId>libraries-data-2</artifactId>
     <name>libraries-data-2</name>
@@ -155,4 +154,5 @@
         <slf4j.version>1.7.25</slf4j.version>
         <awaitility.version>3.0.0</awaitility.version>
     </properties>
+
 </project>
\ No newline at end of file
diff --git a/libraries-data-db/pom.xml b/libraries-data-db/pom.xml
index 767b8b79ba..682a6ed185 100644
--- a/libraries-data-db/pom.xml
+++ b/libraries-data-db/pom.xml
@@ -95,16 +95,16 @@
                         </goals>
                         <configuration>
                             <tasks>
-                                <property name="plugin_classpath" refid="maven.plugin.classpath" />
-                                <taskdef name="gen-reladomo" classpath="plugin_classpath" classname="com.gs.fw.common.mithra.generator.MithraGenerator" />
+                                <property name="plugin_classpath" refid="maven.plugin.classpath"/>
+                                <taskdef name="gen-reladomo" classpath="plugin_classpath" classname="com.gs.fw.common.mithra.generator.MithraGenerator"/>
                                 <gen-reladomo xml="${project.basedir}/src/main/resources/reladomo/ReladomoClassList.xml" generateGscListMethod="true"
-                                              generatedDir="${project.build.directory}/generated-sources/reladomo" nonGeneratedDir="${project.basedir}/src/main/java" />
+                                              generatedDir="${project.build.directory}/generated-sources/reladomo" nonGeneratedDir="${project.basedir}/src/main/java"/>
 
                                 <taskdef name="gen-ddl" classname="com.gs.fw.common.mithra.generator.dbgenerator.MithraDbDefinitionGenerator" loaderRef="reladomoGenerator">
-                                    <classpath refid="maven.plugin.classpath" />
+                                    <classpath refid="maven.plugin.classpath"/>
                                 </taskdef>
                                 <gen-ddl xml="${project.basedir}/src/main/resources/reladomo/ReladomoClassList.xml"
-                                         generatedDir="${project.build.directory}/generated-db/sql" databaseType="postgres" />
+                                         generatedDir="${project.build.directory}/generated-db/sql" databaseType="postgres"/>
                             </tasks>
                         </configuration>
                     </execution>
@@ -213,4 +213,5 @@
         <HikariCP.version>2.7.2</HikariCP.version>
         <ebean.version>11.22.4</ebean.version>
     </properties>
+
 </project>
\ No newline at end of file
diff --git a/libraries-data-io/pom.xml b/libraries-data-io/pom.xml
index dcc8fee3ad..e15e188d10 100644
--- a/libraries-data-io/pom.xml
+++ b/libraries-data-io/pom.xml
@@ -74,4 +74,5 @@
         <docx4j.version>3.3.5</docx4j.version>
         <jaxb-api.version>2.1</jaxb-api.version>
     </properties>
+
 </project>
\ No newline at end of file
diff --git a/libraries-data/pom.xml b/libraries-data/pom.xml
index 6f9b6388fc..2086ecb614 100644
--- a/libraries-data/pom.xml
+++ b/libraries-data/pom.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>libraries-data</artifactId>
     <name>libraries-data</name>
@@ -166,7 +166,7 @@
         <flink.version>1.5.0</flink.version>
         <hazelcast.version>3.8.4</hazelcast.version>
         <org.apache.crunch.crunch-core.version>0.15.0</org.apache.crunch.crunch-core.version>
-        <org.apache.hadoop.hadoop-client>2.2.0</org.apache.hadoop.hadoop-client> 
+        <org.apache.hadoop.hadoop-client>2.2.0</org.apache.hadoop.hadoop-client>
         <slf4j.version>1.7.25</slf4j.version>
     </properties>
 
diff --git a/libraries-http/pom.xml b/libraries-http/pom.xml
index 86f5390c3a..6261456486 100644
--- a/libraries-http/pom.xml
+++ b/libraries-http/pom.xml
@@ -1,31 +1,30 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0"
-	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <artifactId>libraries-http</artifactId>
+    <name>libraries-http</name>
 
-	<modelVersion>4.0.0</modelVersion>
-	<artifactId>libraries-http</artifactId>
-	<name>libraries-http</name>
+    <parent>
+        <groupId>com.baeldung</groupId>
+        <artifactId>parent-modules</artifactId>
+        <version>1.0.0-SNAPSHOT</version>
+    </parent>
 
-	<parent>
-		<groupId>com.baeldung</groupId>
-		<artifactId>parent-modules</artifactId>
-		<version>1.0.0-SNAPSHOT</version>
-	</parent>
+    <dependencies>
+        <dependency>
+            <groupId>org.assertj</groupId>
+            <artifactId>assertj-core</artifactId>
+            <version>${assertj.version}</version>
+        </dependency>
 
-	<dependencies>
-		<dependency>
-			<groupId>org.assertj</groupId>
-			<artifactId>assertj-core</artifactId>
-			<version>${assertj.version}</version>
-		</dependency>
-
-		<!-- Dependencies for response decoder with okhttp -->
-		<dependency>
-			<groupId>com.squareup.okhttp3</groupId>
-			<artifactId>okhttp</artifactId>
+        <!-- Dependencies for response decoder with okhttp -->
+        <dependency>
+            <groupId>com.squareup.okhttp3</groupId>
+            <artifactId>okhttp</artifactId>
             <version>${com.squareup.okhttp3.version}</version>
-		</dependency>
+        </dependency>
 
         <!-- Dependencies for google http client -->
         <dependency>
@@ -39,22 +38,22 @@
             <version>${googleclient.version}</version>
         </dependency>
 
-		<!-- Retrofit -->
-		<dependency>
-			<groupId>com.squareup.retrofit2</groupId>
-			<artifactId>retrofit</artifactId>
-			<version>${retrofit.version}</version>
-		</dependency>
-		<dependency>
-			<groupId>com.squareup.retrofit2</groupId>
-			<artifactId>converter-gson</artifactId>
-			<version>${retrofit.version}</version>
-		</dependency>
-		<dependency>
-			<groupId>com.squareup.retrofit2</groupId>
-			<artifactId>adapter-rxjava</artifactId>
-			<version>${retrofit.version}</version>
-		</dependency>
+        <!-- Retrofit -->
+        <dependency>
+            <groupId>com.squareup.retrofit2</groupId>
+            <artifactId>retrofit</artifactId>
+            <version>${retrofit.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>com.squareup.retrofit2</groupId>
+            <artifactId>converter-gson</artifactId>
+            <version>${retrofit.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>com.squareup.retrofit2</groupId>
+            <artifactId>adapter-rxjava</artifactId>
+            <version>${retrofit.version}</version>
+        </dependency>
 
         <!-- https://mvnrepository.com/artifact/org.asynchttpclient/async-http-client -->
         <dependency>
@@ -63,70 +62,70 @@
             <version>${async.http.client.version}</version>
         </dependency>
 
-		<dependency>
-			<groupId>com.fasterxml.jackson.core</groupId>
-			<artifactId>jackson-databind</artifactId>
-			<version>${jackson.version}</version>
-		</dependency>
+        <dependency>
+            <groupId>com.fasterxml.jackson.core</groupId>
+            <artifactId>jackson-databind</artifactId>
+            <version>${jackson.version}</version>
+        </dependency>
 
-		<dependency>
-			<groupId>com.google.code.gson</groupId>
-			<artifactId>gson</artifactId>
-			<version>2.8.5</version>
-		</dependency>
+        <dependency>
+            <groupId>com.google.code.gson</groupId>
+            <artifactId>gson</artifactId>
+            <version>2.8.5</version>
+        </dependency>
 
-		<dependency>
-			<groupId>com.squareup.okhttp3</groupId>
-			<artifactId>mockwebserver</artifactId>
+        <dependency>
+            <groupId>com.squareup.okhttp3</groupId>
+            <artifactId>mockwebserver</artifactId>
             <version>${com.squareup.okhttp3.version}</version>
-			<scope>test</scope>
-		</dependency>
+            <scope>test</scope>
+        </dependency>
 
-		<dependency>
-			<groupId>com.mashape.unirest</groupId>
-			<artifactId>unirest-java</artifactId>
-			<version>${unirest.version}</version>
-		</dependency>
-		<!-- javalin -->
-		<dependency>
-			<groupId>io.javalin</groupId>
-			<artifactId>javalin</artifactId>
-			<version>${javalin.version}</version>
-		</dependency>
-		<dependency>
-			<groupId>com.squareup.okhttp3</groupId>
-			<artifactId>logging-interceptor</artifactId>
-			<version>${logging-interceptor.version}</version>
-		</dependency>
-		<dependency>
-			<groupId>com.fasterxml.jackson.core</groupId>
-			<artifactId>jackson-databind</artifactId>
-			<version>${jackson.version}</version>
-		</dependency>
-		<dependency>
-			<groupId>org.apache.httpcomponents</groupId>
-			<artifactId>httpclient</artifactId>
-			<version>${httpclient.version}</version>
-			<exclusions>
-				<exclusion>
-					<artifactId>commons-logging</artifactId>
-					<groupId>commons-logging</groupId>
-				</exclusion>
-			</exclusions>
-		</dependency>
-          
-	</dependencies>
+        <dependency>
+            <groupId>com.mashape.unirest</groupId>
+            <artifactId>unirest-java</artifactId>
+            <version>${unirest.version}</version>
+        </dependency>
+        <!-- javalin -->
+        <dependency>
+            <groupId>io.javalin</groupId>
+            <artifactId>javalin</artifactId>
+            <version>${javalin.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>com.squareup.okhttp3</groupId>
+            <artifactId>logging-interceptor</artifactId>
+            <version>${logging-interceptor.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>com.fasterxml.jackson.core</groupId>
+            <artifactId>jackson-databind</artifactId>
+            <version>${jackson.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.httpcomponents</groupId>
+            <artifactId>httpclient</artifactId>
+            <version>${httpclient.version}</version>
+            <exclusions>
+                <exclusion>
+                    <artifactId>commons-logging</artifactId>
+                    <groupId>commons-logging</groupId>
+                </exclusion>
+            </exclusions>
+        </dependency>
+    </dependencies>
 
-	<properties>
-		<httpclient.version>4.5.3</httpclient.version>
-		<jackson.version>2.9.8</jackson.version>
-		<assertj.version>3.6.2</assertj.version>
+    <properties>
+        <httpclient.version>4.5.3</httpclient.version>
+        <jackson.version>2.9.8</jackson.version>
+        <assertj.version>3.6.2</assertj.version>
         <com.squareup.okhttp3.version>3.14.2</com.squareup.okhttp3.version>
         <googleclient.version>1.23.0</googleclient.version>
         <async.http.client.version>2.2.0</async.http.client.version>
-		<retrofit.version>2.3.0</retrofit.version>
-		<unirest.version>1.4.9</unirest.version>
-		<javalin.version>1.6.0</javalin.version>
-		<logging-interceptor.version>3.9.0</logging-interceptor.version>
-	</properties>
+        <retrofit.version>2.3.0</retrofit.version>
+        <unirest.version>1.4.9</unirest.version>
+        <javalin.version>1.6.0</javalin.version>
+        <logging-interceptor.version>3.9.0</logging-interceptor.version>
+    </properties>
+
 </project>
diff --git a/libraries-io/pom.xml b/libraries-io/pom.xml
index 5b78ae9442..8c2e841630 100644
--- a/libraries-io/pom.xml
+++ b/libraries-io/pom.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0"
-    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>libraries-io</artifactId>
     <name>libraries-io</name>
@@ -37,4 +37,5 @@
         <sshj.version>0.27.0</sshj.version>
         <vfs.version>2.4</vfs.version>
     </properties>
+
 </project>
diff --git a/libraries-primitive/pom.xml b/libraries-primitive/pom.xml
index 9eecda2a22..1370468e76 100644
--- a/libraries-primitive/pom.xml
+++ b/libraries-primitive/pom.xml
@@ -49,6 +49,7 @@
         <jmh.version>1.19</jmh.version>
         <eclipse-collections.version>10.0.0</eclipse-collections.version>
         <maven.compiler.source>1.8</maven.compiler.source>
-        <maven.compiler.target>1.8</maven.compiler.target>		
+        <maven.compiler.target>1.8</maven.compiler.target>
     </properties>
+
 </project>
\ No newline at end of file
diff --git a/libraries-security/pom.xml b/libraries-security/pom.xml
index ae08de9a4d..e287de4527 100644
--- a/libraries-security/pom.xml
+++ b/libraries-security/pom.xml
@@ -74,10 +74,11 @@
 
     <properties>
         <scribejava.version>5.6.0</scribejava.version>
-		<passay.version>1.3.1</passay.version>
+        <passay.version>1.3.1</passay.version>
         <tink.version>1.2.2</tink.version>
-		<cryptacular.version>1.2.2</cryptacular.version>
+        <cryptacular.version>1.2.2</cryptacular.version>
         <jasypt.version>1.9.2</jasypt.version>
         <bouncycastle.version>1.58</bouncycastle.version>
     </properties>
+
 </project>
diff --git a/libraries-server/pom.xml b/libraries-server/pom.xml
index 45069fe4f7..a849708cd8 100644
--- a/libraries-server/pom.xml
+++ b/libraries-server/pom.xml
@@ -1,16 +1,17 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>libraries-server</artifactId>
     <version>0.0.1-SNAPSHOT</version>
     <name>libraries-server</name>
-    
+
     <parent>
         <groupId>com.baeldung</groupId>
         <artifactId>parent-modules</artifactId>
         <version>1.0.0-SNAPSHOT</version>
     </parent>
-    
+
     <dependencies>
         <dependency>
             <groupId>org.eclipse.paho</groupId>
@@ -73,23 +74,23 @@
             <version>${tomcat.version}</version>
         </dependency>
 
-         <dependency>
-             <groupId>org.igniterealtime.smack</groupId>
-             <artifactId>smack-tcp</artifactId>
-             <version>${smack.version}</version>
-         </dependency>
+        <dependency>
+            <groupId>org.igniterealtime.smack</groupId>
+            <artifactId>smack-tcp</artifactId>
+            <version>${smack.version}</version>
+        </dependency>
 
-         <dependency>
-             <groupId>org.igniterealtime.smack</groupId>
-             <artifactId>smack-extensions</artifactId>
-             <version>${smack.version}</version>
-         </dependency>
+        <dependency>
+            <groupId>org.igniterealtime.smack</groupId>
+            <artifactId>smack-extensions</artifactId>
+            <version>${smack.version}</version>
+        </dependency>
 
-         <dependency>
-             <groupId>org.igniterealtime.smack</groupId>
-             <artifactId>smack-java7</artifactId>
-             <version>${smack.version}</version>
-         </dependency>
+        <dependency>
+            <groupId>org.igniterealtime.smack</groupId>
+            <artifactId>smack-java7</artifactId>
+            <version>${smack.version}</version>
+        </dependency>
 
         <!-- NanoHTTPD -->
         <dependency>
diff --git a/libraries-testing/pom.xml b/libraries-testing/pom.xml
index 86c9bd52e1..c84f8dda76 100644
--- a/libraries-testing/pom.xml
+++ b/libraries-testing/pom.xml
@@ -1,171 +1,170 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0"
-	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <artifactId>libraries-testing</artifactId>
+    <name>libraries-testing</name>
 
-	<modelVersion>4.0.0</modelVersion>
-	<artifactId>libraries-testing</artifactId>
-	<name>libraries-testing</name>
+    <parent>
+        <groupId>com.baeldung</groupId>
+        <artifactId>parent-modules</artifactId>
+        <version>1.0.0-SNAPSHOT</version>
+    </parent>
 
-	<parent>
-		<groupId>com.baeldung</groupId>
-		<artifactId>parent-modules</artifactId>
-		<version>1.0.0-SNAPSHOT</version>
-	</parent>
+    <dependencies>
+        <dependency>
+            <groupId>net.serenity-bdd</groupId>
+            <artifactId>serenity-core</artifactId>
+            <version>${serenity.version}</version>
+            <scope>test</scope>
+            <exclusions>
+                <exclusion>
+                    <groupId>org.asciidoctor</groupId>
+                    <artifactId>asciidoctorj</artifactId>
+                </exclusion>
+            </exclusions>
+        </dependency>
+        <dependency>
+            <groupId>net.serenity-bdd</groupId>
+            <artifactId>serenity-junit</artifactId>
+            <version>${serenity.version}</version>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>net.serenity-bdd</groupId>
+            <artifactId>serenity-jbehave</artifactId>
+            <version>${serenity.jbehave.version}</version>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>net.serenity-bdd</groupId>
+            <artifactId>serenity-rest-assured</artifactId>
+            <version>${serenity.version}</version>
+            <scope>test</scope>
+            <exclusions>
+                <exclusion>
+                    <groupId>io.rest-assured</groupId>
+                    <artifactId>rest-assured</artifactId>
+                </exclusion>
+            </exclusions>
+        </dependency>
+        <dependency>
+            <groupId>net.serenity-bdd</groupId>
+            <artifactId>serenity-jira-requirements-provider</artifactId>
+            <version>${serenity.jira.version}</version>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>net.serenity-bdd</groupId>
+            <artifactId>serenity-spring</artifactId>
+            <version>${serenity.version}</version>
+            <scope>test</scope>
+            <exclusions>
+                <exclusion>
+                    <groupId>org.springframework</groupId>
+                    <artifactId>spring-test</artifactId>
+                </exclusion>
+            </exclusions>
+        </dependency>
+        <dependency>
+            <groupId>net.serenity-bdd</groupId>
+            <artifactId>serenity-screenplay</artifactId>
+            <version>${serenity.version}</version>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>net.serenity-bdd</groupId>
+            <artifactId>serenity-screenplay-webdriver</artifactId>
+            <version>${serenity.version}</version>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.skyscreamer</groupId>
+            <artifactId>jsonassert</artifactId>
+            <version>${jsonassert.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.awaitility</groupId>
+            <artifactId>awaitility</artifactId>
+            <version>${awaitility.version}</version>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.awaitility</groupId>
+            <artifactId>awaitility-proxy</artifactId>
+            <version>${awaitility.version}</version>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>io.specto</groupId>
+            <artifactId>hoverfly-java</artifactId>
+            <version>${hoverfly-java.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework</groupId>
+            <artifactId>spring-web</artifactId>
+            <version>${spring.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>io.rest-assured</groupId>
+            <artifactId>spring-mock-mvc</artifactId>
+            <version>${spring-mock-mvc.version}</version>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.assertj</groupId>
+            <artifactId>assertj-core</artifactId>
+            <version>${assertj.version}</version>
+        </dependency>
+        <!-- https://mvnrepository.com/artifact/org.hamcrest/java-hamcrest -->
+        <dependency>
+            <groupId>org.hamcrest</groupId>
+            <artifactId>java-hamcrest</artifactId>
+            <version>${java-hamcrest.version}</version>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.asciidoctor</groupId>
+            <artifactId>asciidoctor-maven-plugin</artifactId>
+            <version>1.5.7.1</version>
+        </dependency>
 
-	<dependencies>
-		<dependency>
-			<groupId>net.serenity-bdd</groupId>
-			<artifactId>serenity-core</artifactId>
-			<version>${serenity.version}</version>
-			<scope>test</scope>
-			<exclusions>
-				<exclusion>
-					<groupId>org.asciidoctor</groupId>
-					<artifactId>asciidoctorj</artifactId>
-				</exclusion>
-			</exclusions>
-		</dependency>
-		<dependency>
-			<groupId>net.serenity-bdd</groupId>
-			<artifactId>serenity-junit</artifactId>
-			<version>${serenity.version}</version>
-			<scope>test</scope>
-		</dependency>
-		<dependency>
-			<groupId>net.serenity-bdd</groupId>
-			<artifactId>serenity-jbehave</artifactId>
-			<version>${serenity.jbehave.version}</version>
-			<scope>test</scope>
-		</dependency>
-		<dependency>
-			<groupId>net.serenity-bdd</groupId>
-			<artifactId>serenity-rest-assured</artifactId>
-			<version>${serenity.version}</version>
-			<scope>test</scope>
-			<exclusions>
-				<exclusion>
-					<groupId>io.rest-assured</groupId>
-					<artifactId>rest-assured</artifactId>
-				</exclusion>
-			</exclusions>
-		</dependency>
-		<dependency>
-			<groupId>net.serenity-bdd</groupId>
-			<artifactId>serenity-jira-requirements-provider</artifactId>
-			<version>${serenity.jira.version}</version>
-			<scope>test</scope>
-		</dependency>
-		<dependency>
-			<groupId>net.serenity-bdd</groupId>
-			<artifactId>serenity-spring</artifactId>
-			<version>${serenity.version}</version>
-			<scope>test</scope>
-			<exclusions>
-            <exclusion>
-                <groupId>org.springframework</groupId>
-                <artifactId>spring-test</artifactId>
-            </exclusion>
-        </exclusions>
-		</dependency>
-		<dependency>
-			<groupId>net.serenity-bdd</groupId>
-			<artifactId>serenity-screenplay</artifactId>
-			<version>${serenity.version}</version>
-			<scope>test</scope>
-		</dependency>
-		<dependency>
-			<groupId>net.serenity-bdd</groupId>
-			<artifactId>serenity-screenplay-webdriver</artifactId>
-			<version>${serenity.version}</version>
-			<scope>test</scope>
-		</dependency>
-		<dependency>
-			<groupId>org.skyscreamer</groupId>
-			<artifactId>jsonassert</artifactId>
-			<version>${jsonassert.version}</version>
-		</dependency>
-		<dependency>
-			<groupId>org.awaitility</groupId>
-			<artifactId>awaitility</artifactId>
-			<version>${awaitility.version}</version>
-			<scope>test</scope>
-		</dependency>
-		<dependency>
-			<groupId>org.awaitility</groupId>
-			<artifactId>awaitility-proxy</artifactId>
-			<version>${awaitility.version}</version>
-			<scope>test</scope>
-		</dependency>
-		<dependency>
-			<groupId>io.specto</groupId>
-			<artifactId>hoverfly-java</artifactId>
-			<version>${hoverfly-java.version}</version>
-		</dependency>
-		<dependency>
-			<groupId>org.springframework</groupId>
-			<artifactId>spring-web</artifactId>
-			<version>${spring.version}</version>
-		</dependency>
-		<dependency>
-			<groupId>io.rest-assured</groupId>
-			<artifactId>spring-mock-mvc</artifactId>
-			<version>${spring-mock-mvc.version}</version>
-			<scope>test</scope>
-		</dependency>
-		<dependency>
-			<groupId>org.assertj</groupId>
-			<artifactId>assertj-core</artifactId>
-			<version>${assertj.version}</version>
-		</dependency>
-		<!-- https://mvnrepository.com/artifact/org.hamcrest/java-hamcrest -->
-		<dependency>
-			<groupId>org.hamcrest</groupId>
-			<artifactId>java-hamcrest</artifactId>
-			<version>${java-hamcrest.version}</version>
-			<scope>test</scope>
-		</dependency>
-		<dependency>
-			<groupId>org.asciidoctor</groupId>
-			<artifactId>asciidoctor-maven-plugin</artifactId>
-			<version>1.5.7.1</version>
-		</dependency>
+    </dependencies>
 
-	</dependencies>
+    <build>
+        <plugins>
 
-	<build>
-		<plugins>
+            <plugin>
+                <groupId>net.serenity-bdd.maven.plugins</groupId>
+                <artifactId>serenity-maven-plugin</artifactId>
+                <version>${serenity.plugin.version}</version>
+                <executions>
+                    <execution>
+                        <id>serenity-reports</id>
+                        <phase>post-integration-test</phase>
+                        <goals>
+                            <goal>aggregate</goal>
+                        </goals>
+                    </execution>
+                </executions>
+            </plugin>
 
-			<plugin>
-				<groupId>net.serenity-bdd.maven.plugins</groupId>
-				<artifactId>serenity-maven-plugin</artifactId>
-				<version>${serenity.plugin.version}</version>
-				<executions>
-					<execution>
-						<id>serenity-reports</id>
-						<phase>post-integration-test</phase>
-						<goals>
-							<goal>aggregate</goal>
-						</goals>
-					</execution>
-				</executions>
-			</plugin>
+        </plugins>
+    </build>
 
-		</plugins>
-	</build>
+    <properties>
+        <serenity.version>1.9.9</serenity.version>
+        <serenity.jbehave.version>1.9.0</serenity.jbehave.version>
+        <serenity.jira.version>1.9.0</serenity.jira.version>
+        <serenity.plugin.version>1.9.27</serenity.plugin.version>
+        <jsonassert.version>1.5.0</jsonassert.version>
+        <awaitility.version>3.0.0</awaitility.version>
+        <hoverfly-java.version>0.8.1</hoverfly-java.version>
+        <spring.version>4.3.8.RELEASE</spring.version>
+        <spring-mock-mvc.version>4.1.1</spring-mock-mvc.version>
+        <assertj.version>3.6.2</assertj.version>
+        <java-hamcrest.version>2.0.0.0</java-hamcrest.version>
+    </properties>
 
-	<properties>
-		<serenity.version>1.9.9</serenity.version>
-		<serenity.jbehave.version>1.9.0</serenity.jbehave.version>
-		<serenity.jira.version>1.9.0</serenity.jira.version>
-		<serenity.plugin.version>1.9.27</serenity.plugin.version>
-		<jsonassert.version>1.5.0</jsonassert.version>
-		<awaitility.version>3.0.0</awaitility.version>
-		<hoverfly-java.version>0.8.1</hoverfly-java.version>
-		<spring.version>4.3.8.RELEASE</spring.version>
-		<spring-mock-mvc.version>4.1.1</spring-mock-mvc.version>
-		<assertj.version>3.6.2</assertj.version>
-		<java-hamcrest.version>2.0.0.0</java-hamcrest.version>
-
-	</properties>
 </project>
diff --git a/libraries/pom.xml b/libraries/pom.xml
index 7d20f1778a..13f91711fd 100644
--- a/libraries/pom.xml
+++ b/libraries/pom.xml
@@ -1,13 +1,13 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>libraries</artifactId>
     <name>libraries</name>
 
     <parent>
-        <artifactId>parent-modules</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-modules</artifactId>
         <version>1.0.0-SNAPSHOT</version>
     </parent>
 
@@ -76,17 +76,17 @@
             <version>${rome.version}</version>
         </dependency>
         <dependency>
-        <groupId>net.serenity-bdd</groupId>
-        <artifactId>serenity-core</artifactId>
-        <version>${serenity.version}</version>
-        <scope>test</scope>
-        <exclusions>
-            <exclusion>
-                <groupId>org.asciidoctor</groupId>
-                <artifactId>asciidoctorj</artifactId>
-            </exclusion>
-        </exclusions>
-    </dependency>
+            <groupId>net.serenity-bdd</groupId>
+            <artifactId>serenity-core</artifactId>
+            <version>${serenity.version}</version>
+            <scope>test</scope>
+            <exclusions>
+                <exclusion>
+                    <groupId>org.asciidoctor</groupId>
+                    <artifactId>asciidoctorj</artifactId>
+                </exclusion>
+            </exclusions>
+        </dependency>
         <dependency>
             <groupId>net.serenity-bdd</groupId>
             <artifactId>serenity-junit</artifactId>
@@ -377,8 +377,6 @@
             <scope>test</scope>
         </dependency>
 
-
-
         <!-- Atlassian Fugue -->
         <dependency>
             <groupId>io.atlassian.fugue</groupId>
@@ -431,12 +429,12 @@
             <version>${mockftpserver.version}</version>
             <scope>test</scope>
         </dependency>
-      	<!-- Reflections -->
-		<dependency>
-			<groupId>org.reflections</groupId>
-			<artifactId>reflections</artifactId>
-			<version>${reflections.version}</version>
-		</dependency>
+        <!-- Reflections -->
+        <dependency>
+            <groupId>org.reflections</groupId>
+            <artifactId>reflections</artifactId>
+            <version>${reflections.version}</version>
+        </dependency>
 
     </dependencies>
 
@@ -457,7 +455,6 @@
         </repository>
     </repositories>
 
-
     <build>
         <plugins>
             <plugin>
@@ -559,7 +556,6 @@
     </build>
 
     <properties>
-
         <multiverse.version>0.7.0</multiverse.version>
         <cglib.version>3.2.7</cglib.version>
         <javatuples.version>1.2</javatuples.version>
@@ -567,7 +563,6 @@
         <javers.version>3.1.0</javers.version>
         <jnats.version>1.0</jnats.version>
 
-
         <neuroph.version>2.92</neuroph.version>
         <serenity.version>1.9.26</serenity.version>
         <serenity.jbehave.version>1.41.0</serenity.jbehave.version>
@@ -618,7 +613,6 @@
         <mockftpserver.version>2.7.1</mockftpserver.version>
         <commons-net.version>3.6</commons-net.version>
         <reflections.version>0.9.11</reflections.version>
-
     </properties>
 
 </project>
diff --git a/linkrest/pom.xml b/linkrest/pom.xml
index c40cad41c8..89af27d50c 100644
--- a/linkrest/pom.xml
+++ b/linkrest/pom.xml
@@ -1,5 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>linkrest</artifactId>
     <version>0.0.1-SNAPSHOT</version>
diff --git a/logging-modules/flogger/pom.xml b/logging-modules/flogger/pom.xml
index 20201af179..c27e2c8d7a 100644
--- a/logging-modules/flogger/pom.xml
+++ b/logging-modules/flogger/pom.xml
@@ -6,8 +6,8 @@
     <artifactId>flogger</artifactId>
 
     <parent>
-        <artifactId>logging-modules</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>logging-modules</artifactId>
         <version>1.0.0-SNAPSHOT</version>
     </parent>
 
@@ -61,6 +61,6 @@
             <artifactId>apache-log4j-extras</artifactId>
             <version>1.2.17</version>
         </dependency>
-
     </dependencies>
+
 </project>
\ No newline at end of file
diff --git a/logging-modules/log-mdc/pom.xml b/logging-modules/log-mdc/pom.xml
index ce58f43e4e..e367a63de6 100644
--- a/logging-modules/log-mdc/pom.xml
+++ b/logging-modules/log-mdc/pom.xml
@@ -1,7 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung</groupId>
     <artifactId>log-mdc</artifactId>
     <version>0.0.1-SNAPSHOT</version>
     <name>log-mdc</name>
@@ -76,7 +76,6 @@
             <version>${spring.version}</version>
             <scope>test</scope>
         </dependency>
-
     </dependencies>
 
     <build>
diff --git a/logging-modules/log4j/pom.xml b/logging-modules/log4j/pom.xml
index af97d812de..cc0996a45a 100644
--- a/logging-modules/log4j/pom.xml
+++ b/logging-modules/log4j/pom.xml
@@ -1,12 +1,11 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0"
-    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung</groupId>
     <artifactId>log4j</artifactId>
     <version>1.0-SNAPSHOT</version>
-	<name>log4j</name>
+    <name>log4j</name>
 
     <parent>
         <groupId>com.baeldung</groupId>
diff --git a/logging-modules/log4j2/pom.xml b/logging-modules/log4j2/pom.xml
index db0c6eb659..03a4fd8ab0 100644
--- a/logging-modules/log4j2/pom.xml
+++ b/logging-modules/log4j2/pom.xml
@@ -1,10 +1,10 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>log4j2</artifactId>
-	<name>log4j2</name>
-	
+    <name>log4j2</name>
+
     <parent>
         <groupId>com.baeldung</groupId>
         <artifactId>parent-modules</artifactId>
@@ -19,12 +19,12 @@
             <artifactId>log4j-core</artifactId>
             <version>${log4j-core.version}</version>
         </dependency>
-        
+
         <!-- This is the needed API component. -->
         <dependency>
-          <groupId>org.apache.logging.log4j</groupId>
-          <artifactId>log4j-api</artifactId>
-          <version>${log4j-core.version}</version>
+            <groupId>org.apache.logging.log4j</groupId>
+            <artifactId>log4j-api</artifactId>
+            <version>${log4j-core.version}</version>
         </dependency>
 
         <!-- This is used by JSONLayout. -->
diff --git a/logging-modules/logback/pom.xml b/logging-modules/logback/pom.xml
index 22a89124b5..6ffc9e1235 100644
--- a/logging-modules/logback/pom.xml
+++ b/logging-modules/logback/pom.xml
@@ -1,8 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0
                              http://maven.apache.org/xsd/maven-4.0.0.xsd">
-
     <modelVersion>4.0.0</modelVersion>
     <artifactId>logback</artifactId>
     <version>0.1-SNAPSHOT</version>
@@ -16,7 +15,6 @@
     </parent>
 
     <dependencies>
-
         <dependency>
             <groupId>ch.qos.logback</groupId>
             <artifactId>logback-classic</artifactId>
@@ -52,7 +50,6 @@
                 </exclusion>
             </exclusions>
         </dependency>
-        
     </dependencies>
 
     <properties>
diff --git a/logging-modules/pom.xml b/logging-modules/pom.xml
index 927afb6ca9..b9a1fe77c6 100644
--- a/logging-modules/pom.xml
+++ b/logging-modules/pom.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://maven.apache.org/POM/4.0.0"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>logging-modules</artifactId>
     <name>logging-modules</name>
diff --git a/lombok-custom/pom.xml b/lombok-custom/pom.xml
index cfbe629945..1455a4f6c6 100644
--- a/lombok-custom/pom.xml
+++ b/lombok-custom/pom.xml
@@ -2,18 +2,17 @@
 <project xmlns="http://maven.apache.org/POM/4.0.0"
          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
-
     <modelVersion>4.0.0</modelVersion>
     <artifactId>lombok-custom</artifactId>
-	<name>lombok-custom</name>
+    <name>lombok-custom</name>
     <version>0.1-SNAPSHOT</version>
 
     <parent>
-        <artifactId>parent-modules</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-modules</artifactId>
         <version>1.0.0-SNAPSHOT</version>
     </parent>
-	
+
     <dependencies>
         <dependency>
             <groupId>org.projectlombok</groupId>
@@ -59,9 +58,8 @@
     <properties>
         <!-- lombok: https://projectlombok.org/changelog.html -->
         <lombok.version>1.14.8</lombok.version>
-		<metainf-services.version>1.8</metainf-services.version>
-		<eclipse.jdt.core.version>3.3.0-v_771</eclipse.jdt.core.version>
+        <metainf-services.version>1.8</metainf-services.version>
+        <eclipse.jdt.core.version>3.3.0-v_771</eclipse.jdt.core.version>
     </properties>
 
-
 </project>
diff --git a/lombok/pom.xml b/lombok/pom.xml
index 5e2ad33f66..e347515b40 100644
--- a/lombok/pom.xml
+++ b/lombok/pom.xml
@@ -1,12 +1,11 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0
                              http://maven.apache.org/xsd/maven-4.0.0.xsd">
-
     <modelVersion>4.0.0</modelVersion>
-    <name>lombok</name>
     <artifactId>lombok</artifactId>
     <version>0.1-SNAPSHOT</version>
+    <name>lombok</name>
 
     <parent>
         <groupId>com.baeldung</groupId>
diff --git a/lucene/pom.xml b/lucene/pom.xml
index 921832e280..0a0e09f724 100644
--- a/lucene/pom.xml
+++ b/lucene/pom.xml
@@ -1,5 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>lucene</artifactId>
     <version>0.0.1-SNAPSHOT</version>
@@ -28,7 +29,6 @@
             <artifactId>lucene-analyzers-common</artifactId>
             <version>${lucene.version}</version>
         </dependency>
-        
     </dependencies>
 
     <properties>
diff --git a/machine-learning/pom.xml b/machine-learning/pom.xml
index bb64470c74..7bc0332012 100644
--- a/machine-learning/pom.xml
+++ b/machine-learning/pom.xml
@@ -1,7 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-
     <artifactId>machine-learning</artifactId>
     <version>1.0-SNAPSHOT</version>
     <name>Supervised Learning</name>
@@ -54,6 +54,7 @@
             <version>${kotlin.version}</version>
         </dependency>
     </dependencies>
+
     <build>
         <sourceDirectory>src/main/kotlin</sourceDirectory>
         <testSourceDirectory>src/test</testSourceDirectory>
@@ -147,4 +148,5 @@
             </plugin>
         </plugins>
     </build>
+
 </project>
diff --git a/mapstruct/pom.xml b/mapstruct/pom.xml
index e98c4a318b..11c8d9b41e 100644
--- a/mapstruct/pom.xml
+++ b/mapstruct/pom.xml
@@ -1,10 +1,10 @@
 <?xml version="1.0"?>
 <project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd" xmlns="http://maven.apache.org/POM/4.0.0"
-    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>mapstruct</artifactId>
-    <name>mapstruct</name>
     <version>1.0</version>
+    <name>mapstruct</name>
     <packaging>jar</packaging>
 
     <parent>
diff --git a/maven-all/compiler-plugin-java-9/pom.xml b/maven-all/compiler-plugin-java-9/pom.xml
index 5303cee82e..1975e1f7cd 100644
--- a/maven-all/compiler-plugin-java-9/pom.xml
+++ b/maven-all/compiler-plugin-java-9/pom.xml
@@ -1,22 +1,24 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0"
-	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
-	<modelVersion>4.0.0</modelVersion>
-	<groupId>com.baeldung</groupId>
-	<artifactId>compiler-plugin-java-9</artifactId>
-	<version>0.0.1-SNAPSHOT</version>
-	
-	<build>
-		<plugins>
-			<plugin>
-				<groupId>org.apache.maven.plugins</groupId>
-				<artifactId>maven-compiler-plugin</artifactId>
-				<version>3.8.0</version>
-				<configuration>
-					<source>9</source>
-					<target>9</target>
-				</configuration>
-			</plugin>
-		</plugins>
-	</build>
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <groupId>com.baeldung</groupId>
+    <artifactId>compiler-plugin-java-9</artifactId>
+    <version>0.0.1-SNAPSHOT</version>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-compiler-plugin</artifactId>
+                <version>3.8.0</version>
+                <configuration>
+                    <source>9</source>
+                    <target>9</target>
+                </configuration>
+            </plugin>
+        </plugins>
+    </build>
+
 </project>
\ No newline at end of file
diff --git a/maven-all/maven-custom-plugin/counter-maven-plugin/pom.xml b/maven-all/maven-custom-plugin/counter-maven-plugin/pom.xml
index 8cf79bcacb..7ddf5b739c 100644
--- a/maven-all/maven-custom-plugin/counter-maven-plugin/pom.xml
+++ b/maven-all/maven-custom-plugin/counter-maven-plugin/pom.xml
@@ -1,81 +1,80 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0"
-	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
-	<modelVersion>4.0.0</modelVersion>
-	<groupId>com.baeldung</groupId>
-	<artifactId>counter-maven-plugin</artifactId>
-	<packaging>maven-plugin</packaging>
-	<version>0.0.1-SNAPSHOT</version>
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <groupId>com.baeldung</groupId>
+    <artifactId>counter-maven-plugin</artifactId>
+    <version>0.0.1-SNAPSHOT</version>
+    <name>counter-maven-plugin Maven Mojo</name>
+    <packaging>maven-plugin</packaging>
+    <url>http://maven.apache.org</url>
 
-	<name>counter-maven-plugin Maven Mojo</name>
-	<url>http://maven.apache.org</url>
+    <organization>
+        <name>Baeldung</name>
+        <url>https://www.baeldung.com/</url>
+    </organization>
 
-	<organization>
-		<name>Baeldung</name>
-		<url>https://www.baeldung.com/</url>
-	</organization>
+    <dependencies>
+        <dependency>
+            <groupId>org.apache.maven</groupId>
+            <artifactId>maven-plugin-api</artifactId>
+            <version>${maven-plugin-api.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.maven.plugin-tools</groupId>
+            <artifactId>maven-plugin-annotations</artifactId>
+            <version>${maven-plugin-annotations.version}</version>
+            <scope>provided</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.maven</groupId>
+            <artifactId>maven-project</artifactId>
+            <version>${maven-project.version}</version>
+        </dependency>
+    </dependencies>
 
-	<properties>
-		<maven.compiler.target>1.8</maven.compiler.target>
-		<maven.compiler.source>1.8</maven.compiler.source>
+    <build>
+        <pluginManagement>
+            <plugins>
+                <plugin>
+                    <groupId>org.apache.maven.plugins</groupId>
+                    <artifactId>maven-plugin-plugin</artifactId>
+                    <version>${maven-plugin-plugin.version}</version>
+                </plugin>
+                <plugin>
+                    <groupId>org.apache.maven.plugins</groupId>
+                    <artifactId>maven-site-plugin</artifactId>
+                    <version>${maven-site-plugin.version}</version>
+                </plugin>
+            </plugins>
+        </pluginManagement>
+    </build>
 
-		<maven-plugin-api.version>3.6.2</maven-plugin-api.version>
-		<maven-plugin-annotations.version>3.6.0</maven-plugin-annotations.version>
-		<maven-project.version>2.2.1</maven-project.version>
-		<maven-plugin-plugin.version>3.6.0</maven-plugin-plugin.version>
-		<maven-site-plugin.version>3.8.2</maven-site-plugin.version>
-	</properties>
+    <reporting>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-plugin-plugin</artifactId>
+                <reportSets>
+                    <reportSet>
+                        <reports>
+                            <report>report</report>
+                        </reports>
+                    </reportSet>
+                </reportSets>
+            </plugin>
+        </plugins>
+    </reporting>
 
-	<dependencies>
-		<dependency>
-			<groupId>org.apache.maven</groupId>
-			<artifactId>maven-plugin-api</artifactId>
-			<version>${maven-plugin-api.version}</version>
-		</dependency>
-		<dependency>
-			<groupId>org.apache.maven.plugin-tools</groupId>
-			<artifactId>maven-plugin-annotations</artifactId>
-			<version>${maven-plugin-annotations.version}</version>
-			<scope>provided</scope>
-		</dependency>
-		<dependency>
-			<groupId>org.apache.maven</groupId>
-			<artifactId>maven-project</artifactId>
-			<version>${maven-project.version}</version>
-		</dependency>
-	</dependencies>
-
-	<build>
-		<pluginManagement>
-			<plugins>
-				<plugin>
-					<groupId>org.apache.maven.plugins</groupId>
-					<artifactId>maven-plugin-plugin</artifactId>
-					<version>${maven-plugin-plugin.version}</version>
-				</plugin>
-				<plugin>
-					<groupId>org.apache.maven.plugins</groupId>
-					<artifactId>maven-site-plugin</artifactId>
-					<version>${maven-site-plugin.version}</version>
-				</plugin>
-			</plugins>
-		</pluginManagement>
-	</build>
-
-	<reporting>
-		<plugins>
-			<plugin>
-				<groupId>org.apache.maven.plugins</groupId>
-				<artifactId>maven-plugin-plugin</artifactId>
-				<reportSets>
-					<reportSet>
-						<reports>
-							<report>report</report>
-						</reports>
-					</reportSet>
-				</reportSets>
-			</plugin>
-		</plugins>
-	</reporting>
+    <properties>
+        <maven.compiler.target>1.8</maven.compiler.target>
+        <maven.compiler.source>1.8</maven.compiler.source>
+        <maven-plugin-api.version>3.6.2</maven-plugin-api.version>
+        <maven-plugin-annotations.version>3.6.0</maven-plugin-annotations.version>
+        <maven-project.version>2.2.1</maven-project.version>
+        <maven-plugin-plugin.version>3.6.0</maven-plugin-plugin.version>
+        <maven-site-plugin.version>3.8.2</maven-site-plugin.version>
+    </properties>
 
 </project>
\ No newline at end of file
diff --git a/maven-all/maven-custom-plugin/usage-example/pom.xml b/maven-all/maven-custom-plugin/usage-example/pom.xml
index 62c5a64a44..542a02b3eb 100644
--- a/maven-all/maven-custom-plugin/usage-example/pom.xml
+++ b/maven-all/maven-custom-plugin/usage-example/pom.xml
@@ -1,45 +1,45 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0"
-	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <groupId>com.baeldung</groupId>
+    <artifactId>example</artifactId>
+    <version>0.0.1-SNAPSHOT</version>
+    <packaging>pom</packaging>
 
-	<modelVersion>4.0.0</modelVersion>
-	<groupId>com.baeldung</groupId>
-	<artifactId>example</artifactId>
-	<packaging>pom</packaging>
-	<version>0.0.1-SNAPSHOT</version>
+    <dependencies>
+        <dependency>
+            <groupId>org.apache.commons</groupId>
+            <artifactId>commons-lang3</artifactId>
+            <version>3.9</version>
+        </dependency>
+        <dependency>
+            <groupId>junit</groupId>
+            <artifactId>junit</artifactId>
+            <version>4.12</version>
+            <scope>test</scope>
+        </dependency>
+    </dependencies>
 
-	<dependencies>
-		<dependency>
-			<groupId>org.apache.commons</groupId>
-			<artifactId>commons-lang3</artifactId>
-			<version>3.9</version>
-		</dependency>
-		<dependency>
-			<groupId>junit</groupId>
-			<artifactId>junit</artifactId>
-			<version>4.12</version>
-			<scope>test</scope>
-		</dependency>
-	</dependencies>
-
-	<build>
-		<plugins>
-			<plugin>
-				<groupId>com.baeldung</groupId>
-				<artifactId>counter-maven-plugin</artifactId>
-				<version>0.0.1-SNAPSHOT</version>
-				<executions>
-					<execution>
-						<goals>
-							<goal>dependency-counter</goal>
-						</goals>
-					</execution>
-				</executions>
-				<configuration>
-					<scope>test</scope>
-				</configuration>
-			</plugin>
-		</plugins>
-	</build>
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>com.baeldung</groupId>
+                <artifactId>counter-maven-plugin</artifactId>
+                <version>0.0.1-SNAPSHOT</version>
+                <executions>
+                    <execution>
+                        <goals>
+                            <goal>dependency-counter</goal>
+                        </goals>
+                    </execution>
+                </executions>
+                <configuration>
+                    <scope>test</scope>
+                </configuration>
+            </plugin>
+        </plugins>
+    </build>
 
 </project>
diff --git a/maven-all/maven-war-plugin/pom.xml b/maven-all/maven-war-plugin/pom.xml
index 25c2e1ba1b..233a9f3571 100644
--- a/maven-all/maven-war-plugin/pom.xml
+++ b/maven-all/maven-war-plugin/pom.xml
@@ -1,12 +1,13 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0"
-    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <groupId>com.baeldung</groupId>
     <artifactId>maven-war-plugin</artifactId>
     <version>0.0.1-SNAPSHOT</version>
-    <packaging>war</packaging>
     <name>maven-war-plugin</name>
+    <packaging>war</packaging>
 
     <build>
         <plugins>
@@ -21,9 +22,10 @@
             </plugin>
         </plugins>
     </build>
-    
+
     <!-- Set failOnMissingWebXml as false in properties section -->
     <properties>
         <failOnMissingWebXml>false</failOnMissingWebXml>
     </properties>
+
 </project>
\ No newline at end of file
diff --git a/maven-all/maven/custom-rule/pom.xml b/maven-all/maven/custom-rule/pom.xml
index 2fbeb18922..6ff984cb85 100644
--- a/maven-all/maven/custom-rule/pom.xml
+++ b/maven-all/maven/custom-rule/pom.xml
@@ -4,11 +4,11 @@
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>custom-rule</artifactId>
-	<name>custom-rule</name>
-	
+    <name>custom-rule</name>
+
     <parent>
-        <artifactId>maven</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>maven</artifactId>
         <version>0.0.1-SNAPSHOT</version>
     </parent>
 
@@ -64,4 +64,5 @@
         <maven.version>2.0.9</maven.version>
         <plexus-container-default.version>1.0-alpha-9</plexus-container-default.version>
     </properties>
+
 </project>
diff --git a/maven-all/maven/maven-enforcer/pom.xml b/maven-all/maven/maven-enforcer/pom.xml
index b18be4f43d..cde37eabd1 100644
--- a/maven-all/maven/maven-enforcer/pom.xml
+++ b/maven-all/maven/maven-enforcer/pom.xml
@@ -4,11 +4,11 @@
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>maven-enforcer</artifactId>
-	<name>maven-enforcer</name>
-    	
+    <name>maven-enforcer</name>
+
     <parent>
-        <artifactId>maven</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>maven</artifactId>
         <version>0.0.1-SNAPSHOT</version>
     </parent>
 
@@ -19,11 +19,11 @@
                 <artifactId>maven-enforcer-plugin</artifactId>
                 <version>3.0.0-M2</version>
                 <!--<dependencies>-->
-                    <!--<dependency>-->
-                        <!--<groupId>com.baeldung</groupId>-->
-                        <!--<artifactId>custom-rule</artifactId>-->
-                        <!--<version>1.0</version>-->
-                    <!--</dependency>-->
+                <!--<dependency>-->
+                <!--<groupId>com.baeldung</groupId>-->
+                <!--<artifactId>custom-rule</artifactId>-->
+                <!--<version>1.0</version>-->
+                <!--</dependency>-->
                 <!--</dependencies>-->
                 <executions>
                     <execution>
@@ -72,5 +72,4 @@
         </plugins>
     </build>
 
-
 </project>
\ No newline at end of file
diff --git a/maven-all/maven/pom.xml b/maven-all/maven/pom.xml
index 117a8a7002..0220cf8dfc 100644
--- a/maven-all/maven/pom.xml
+++ b/maven-all/maven/pom.xml
@@ -1,3 +1,4 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
@@ -7,8 +8,8 @@
     <packaging>pom</packaging>
 
     <parent>
-        <artifactId>parent-modules</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-modules</artifactId>
         <version>1.0.0-SNAPSHOT</version>
         <relativePath>../..</relativePath>
     </parent>
@@ -309,4 +310,5 @@
         <jetty.version>9.4.11.v20180605</jetty.version>
         <jersey.version>2.27</jersey.version>
     </properties>
+
 </project>
\ No newline at end of file
diff --git a/maven-all/profiles/pom.xml b/maven-all/profiles/pom.xml
index 110016f3a2..01b191c7d6 100644
--- a/maven-all/profiles/pom.xml
+++ b/maven-all/profiles/pom.xml
@@ -1,11 +1,12 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0"
-    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <groupId>com.baeldung</groupId>
     <artifactId>profiles</artifactId>
     <version>0.0.1-SNAPSHOT</version>
-	<name>profiles</name>
+    <name>profiles</name>
 
     <profiles>
         <profile>
@@ -85,4 +86,5 @@
             </plugin>
         </plugins>
     </build>
+
 </project>
\ No newline at end of file
diff --git a/maven-all/versions-maven-plugin/original/pom.xml b/maven-all/versions-maven-plugin/original/pom.xml
index df8ee9a20e..c6c1657b25 100644
--- a/maven-all/versions-maven-plugin/original/pom.xml
+++ b/maven-all/versions-maven-plugin/original/pom.xml
@@ -1,3 +1,4 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0"
     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
     xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
diff --git a/maven-all/versions-maven-plugin/pom.xml b/maven-all/versions-maven-plugin/pom.xml
index c9f63a46f1..3ce25d16f9 100644
--- a/maven-all/versions-maven-plugin/pom.xml
+++ b/maven-all/versions-maven-plugin/pom.xml
@@ -1,14 +1,14 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0"
-    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <groupId>com.baeldung</groupId>
     <artifactId>versions-maven-plugin</artifactId>
     <version>0.0.1-SNAPSHOT</version>
-	<name>versions-maven-plugin</name>
+    <name>versions-maven-plugin</name>
 
     <dependencies>
-
         <dependency>
             <groupId>commons-io</groupId>
             <artifactId>commons-io</artifactId>
@@ -38,7 +38,6 @@
             <artifactId>commons-beanutils</artifactId>
             <version>1.9.1</version>
         </dependency>
-
     </dependencies>
 
     <build>
@@ -69,8 +68,8 @@
             </snapshots>
         </repository>
     </repositories>
-	
-    <properties>        
+
+    <properties>
         <commons-compress-version>1.15</commons-compress-version>
     </properties>
 
diff --git a/maven-archetype/pom.xml b/maven-archetype/pom.xml
index 73ddc78fc7..be616ac299 100644
--- a/maven-archetype/pom.xml
+++ b/maven-archetype/pom.xml
@@ -1,14 +1,14 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <groupId>com.baeldung.archetypes</groupId>
     <artifactId>maven-archetype</artifactId>
     <version>1.0-SNAPSHOT</version>
-	<name>maven-archetype</name>
+    <name>maven-archetype</name>
     <packaging>maven-archetype</packaging>
     <description>Archetype used to generate rest application based on jaxrs 2.1</description>
-	
+
     <build>
         <extensions>
             <extension>
diff --git a/maven-java-11/multimodule-maven-project/daomodule/pom.xml b/maven-java-11/multimodule-maven-project/daomodule/pom.xml
index 5520c5a90a..cbe0b4cb95 100644
--- a/maven-java-11/multimodule-maven-project/daomodule/pom.xml
+++ b/maven-java-11/multimodule-maven-project/daomodule/pom.xml
@@ -1,15 +1,17 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <groupId>com.baeldung.daomodule</groupId>
     <artifactId>daomodule</artifactId>
-    <packaging>jar</packaging>
     <version>1.0</version>
     <name>daomodule</name>
-	
+    <packaging>jar</packaging>
+
     <parent>
         <groupId>com.baeldung.multimodule-maven-project</groupId>
         <artifactId>multimodule-maven-project</artifactId>
         <version>1.0</version>
     </parent>
+
 </project>
diff --git a/maven-java-11/multimodule-maven-project/entitiymodule/pom.xml b/maven-java-11/multimodule-maven-project/entitiymodule/pom.xml
index 747722e912..228619ed74 100644
--- a/maven-java-11/multimodule-maven-project/entitiymodule/pom.xml
+++ b/maven-java-11/multimodule-maven-project/entitiymodule/pom.xml
@@ -1,11 +1,12 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <groupId>com.baeldung.entitymodule</groupId>
     <artifactId>entitymodule</artifactId>
-    <packaging>jar</packaging>
     <version>1.0</version>
     <name>entitymodule</name>
+    <packaging>jar</packaging>
 
     <parent>
         <groupId>com.baeldung.multimodule-maven-project</groupId>
@@ -17,4 +18,5 @@
         <maven.compiler.source>11</maven.compiler.source>
         <maven.compiler.target>11</maven.compiler.target>
     </properties>
+
 </project>
diff --git a/maven-java-11/multimodule-maven-project/mainppmodule/pom.xml b/maven-java-11/multimodule-maven-project/mainppmodule/pom.xml
index 3e5ec122ff..42b06bbebd 100644
--- a/maven-java-11/multimodule-maven-project/mainppmodule/pom.xml
+++ b/maven-java-11/multimodule-maven-project/mainppmodule/pom.xml
@@ -1,18 +1,19 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <groupId>com.baeldung.mainappmodule</groupId>
     <artifactId>mainappmodule</artifactId>
     <version>1.0</version>
-    <packaging>jar</packaging>
     <name>mainappmodule</name>
+    <packaging>jar</packaging>
 
     <parent>
         <groupId>com.baeldung.multimodule-maven-project</groupId>
         <artifactId>multimodule-maven-project</artifactId>
         <version>1.0</version>
     </parent>
-    
+
     <dependencies>
         <dependency>
             <groupId>com.baeldung.entitymodule</groupId>
@@ -30,4 +31,5 @@
             <version>1.0</version>
         </dependency>
     </dependencies>
+
 </project>
diff --git a/maven-java-11/multimodule-maven-project/pom.xml b/maven-java-11/multimodule-maven-project/pom.xml
index 7e2eb0dd7b..a79dff93d3 100644
--- a/maven-java-11/multimodule-maven-project/pom.xml
+++ b/maven-java-11/multimodule-maven-project/pom.xml
@@ -1,25 +1,26 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <groupId>com.baeldung.multimodule-maven-project</groupId>
     <artifactId>multimodule-maven-project</artifactId>
     <version>1.0</version>
-    <packaging>pom</packaging>
     <name>multimodule-maven-project</name>
+    <packaging>pom</packaging>
 
     <parent>
         <groupId>com.baeldung.maven-java-11</groupId>
         <artifactId>maven-java-11</artifactId>
         <version>1.0</version>
     </parent>
-    
+
     <modules>
         <module>entitymodule</module>
         <module>daomodule</module>
         <module>userdaomodule</module>
         <module>mainappmodule</module>
     </modules>
-    
+
     <dependencyManagement>
         <dependencies>
             <dependency>
@@ -36,7 +37,7 @@
             </dependency>
         </dependencies>
     </dependencyManagement>
-    
+
     <build>
         <pluginManagement>
             <plugins>
@@ -52,8 +53,9 @@
             </plugins>
         </pluginManagement>
     </build>
-    
+
     <properties>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
     </properties>
+
 </project>
diff --git a/maven-java-11/multimodule-maven-project/userdaomodule/pom.xml b/maven-java-11/multimodule-maven-project/userdaomodule/pom.xml
index 68e7ae9b82..3eb5897f8b 100644
--- a/maven-java-11/multimodule-maven-project/userdaomodule/pom.xml
+++ b/maven-java-11/multimodule-maven-project/userdaomodule/pom.xml
@@ -1,18 +1,19 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <groupId>com.baeldung.userdaomodule</groupId>
     <artifactId>userdaomodule</artifactId>
     <version>1.0</version>
-    <packaging>jar</packaging>
     <name>userdaomodule</name>
-	
+    <packaging>jar</packaging>
+
     <parent>
         <groupId>com.baeldung.multimodule-maven-project</groupId>
         <artifactId>multimodule-maven-project</artifactId>
         <version>1.0</version>
     </parent>
-	
+
     <dependencies>
         <dependency>
             <groupId>com.baeldung.entitymodule</groupId>
@@ -30,4 +31,5 @@
             <scope>test</scope>
         </dependency>
     </dependencies>
+
 </project>
diff --git a/maven-java-11/pom.xml b/maven-java-11/pom.xml
index 5ae4c00892..10e80365c8 100644
--- a/maven-java-11/pom.xml
+++ b/maven-java-11/pom.xml
@@ -1,15 +1,16 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <groupId>com.baeldung.maven-java-11</groupId>
     <artifactId>maven-java-11</artifactId>
     <version>1.0</version>
-    <packaging>pom</packaging>
     <name>maven-java-11</name>
+    <packaging>pom</packaging>
 
     <parent>
-        <artifactId>parent-modules</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-modules</artifactId>
         <version>1.0.0-SNAPSHOT</version>
     </parent>
 
@@ -22,4 +23,5 @@
         <maven.compiler.source>11</maven.compiler.source>
         <maven.compiler.target>11</maven.compiler.target>
     </properties>
+
 </project>
diff --git a/maven-polyglot/maven-polyglot-json-extension/pom.xml b/maven-polyglot/maven-polyglot-json-extension/pom.xml
index 13f05c743f..0043bae151 100644
--- a/maven-polyglot/maven-polyglot-json-extension/pom.xml
+++ b/maven-polyglot/maven-polyglot-json-extension/pom.xml
@@ -6,7 +6,7 @@
     <groupId>com.baeldung.maven.polyglot</groupId>
     <artifactId>maven-polyglot-json-extension</artifactId>
     <version>1.0-SNAPSHOT</version>
-	<name>maven-polyglot-json-extension</name>
+    <name>maven-polyglot-json-extension</name>
 
     <parent>
         <groupId>com.baeldung</groupId>
@@ -45,7 +45,7 @@
             </plugin>
         </plugins>
     </build>
-	
+
     <properties>
         <maven-core.version>3.5.4</maven-core.version>
     </properties>
diff --git a/mesos-marathon/pom.xml b/mesos-marathon/pom.xml
index 0e9bc321ef..4fb819c434 100644
--- a/mesos-marathon/pom.xml
+++ b/mesos-marathon/pom.xml
@@ -1,13 +1,13 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>mesos-marathon</artifactId>
     <name>mesos-marathon</name>
-	
+
     <parent>
-        <artifactId>parent-boot-1</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-1</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../parent-boot-1</relativePath>
     </parent>
diff --git a/metrics/pom.xml b/metrics/pom.xml
index 49adb088d8..92699c3fb8 100644
--- a/metrics/pom.xml
+++ b/metrics/pom.xml
@@ -1,13 +1,13 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>metrics</artifactId>
     <name>metrics</name>
 
     <parent>
-        <artifactId>parent-modules</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-modules</artifactId>
         <version>1.0.0-SNAPSHOT</version>
     </parent>
 
@@ -73,7 +73,7 @@
             <artifactId>jackson-dataformat-smile</artifactId>
             <version>${fasterxml.jackson.version}</version>
         </dependency>
-        
+
         <dependency>
             <groupId>io.astefanutti.metrics.aspectj</groupId>
             <artifactId>metrics-aspectj-deps</artifactId>
@@ -86,7 +86,6 @@
             <version>${assertj-core.version}</version>
             <scope>test</scope>
         </dependency>
-
     </dependencies>
 
     <properties>
@@ -95,8 +94,8 @@
         <netflix.servo.ver>0.12.17</netflix.servo.ver>
         <micrometer.ver>0.12.0.RELEASE</micrometer.ver>
         <fasterxml.jackson.version>2.9.1</fasterxml.jackson.version>
-		<spring-boot-starter-web.version>2.0.7.RELEASE</spring-boot-starter-web.version>
-		<assertj-core.version>3.11.1</assertj-core.version>
+        <spring-boot-starter-web.version>2.0.7.RELEASE</spring-boot-starter-web.version>
+        <assertj-core.version>3.11.1</assertj-core.version>
         <metrics-aspectj.version>1.1.0</metrics-aspectj.version>
     </properties>
 
diff --git a/micronaut/pom.xml b/micronaut/pom.xml
index 02ac36218d..13639c11ff 100644
--- a/micronaut/pom.xml
+++ b/micronaut/pom.xml
@@ -1,4 +1,6 @@
-<?xml version="1.0" encoding="UTF-8"?><project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <groupId>com.baeldung.micronaut</groupId>
     <artifactId>micronaut</artifactId>
@@ -22,6 +24,7 @@
             </dependency>
         </dependencies>
     </dependencyManagement>
+
     <dependencies>
         <dependency>
             <groupId>io.micronaut</groupId>
@@ -72,6 +75,7 @@
             <version>3.1.6.RELEASE</version>
         </dependency>
     </dependencies>
+
     <build>
         <plugins>
             <plugin>
@@ -133,10 +137,11 @@
             </plugins>
         </pluginManagement>
     </build>
-    
+
     <properties>
         <exec.mainClass>com.baeldung.micronaut.helloworld.server.ServerApplication</exec.mainClass>
         <micronaut.version>1.0.0.RC2</micronaut.version>
         <jdk.version>1.8</jdk.version>
     </properties>
+
 </project>
diff --git a/microprofile/pom.xml b/microprofile/pom.xml
index 9150a6adb1..5a32ad8dba 100644
--- a/microprofile/pom.xml
+++ b/microprofile/pom.xml
@@ -1,10 +1,10 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://maven.apache.org/POM/4.0.0"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>microprofile</artifactId>
     <version>1.0-SNAPSHOT</version>
-	<name>microprofile</name>
+    <name>microprofile</name>
     <packaging>war</packaging>
 
     <parent>
diff --git a/msf4j/pom.xml b/msf4j/pom.xml
index 2a862ac289..a220ce0229 100644
--- a/msf4j/pom.xml
+++ b/msf4j/pom.xml
@@ -1,45 +1,46 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0"
-	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
-	<modelVersion>4.0.0</modelVersion>
-	<groupId>com.baeldung.msf4j</groupId>
-	<artifactId>msf4j</artifactId>
-	<version>0.0.1-SNAPSHOT</version>
-	<name>msf4j</name>
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <groupId>com.baeldung.msf4j</groupId>
+    <artifactId>msf4j</artifactId>
+    <version>0.0.1-SNAPSHOT</version>
+    <name>msf4j</name>
 
     <parent>
-        <artifactId>parent-modules</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-modules</artifactId>
         <version>1.0.0-SNAPSHOT</version>
     </parent>
 
-	<dependencyManagement>
-		<dependencies>
-			<dependency>
-			    <groupId>org.wso2.msf4j</groupId>
-			    <artifactId>msf4j-service</artifactId>
-			    <version>${msf4j.version}</version>
-			    <type>pom</type>
-			</dependency>
-		</dependencies>		
-	</dependencyManagement>
-	
-	<dependencies>
-		<dependency>
-			<groupId>org.wso2.msf4j</groupId>
-			<artifactId>msf4j-spring</artifactId>
-			<version>${msf4j.version}</version>
-		</dependency>
-		<dependency>
-			<groupId>org.wso2.msf4j</groupId>
-			<artifactId>msf4j-mustache-template</artifactId>
-			<version>${msf4j.version}</version>
-		</dependency>
-	</dependencies>
+    <dependencyManagement>
+        <dependencies>
+            <dependency>
+                <groupId>org.wso2.msf4j</groupId>
+                <artifactId>msf4j-service</artifactId>
+                <version>${msf4j.version}</version>
+                <type>pom</type>
+            </dependency>
+        </dependencies>
+    </dependencyManagement>
 
-	<properties>
-		<microservice.mainClass>com.baeldung.msf4j.msf4jintro.Application</microservice.mainClass>
-		<msf4j.version>2.6.3</msf4j.version>
-	</properties>
+    <dependencies>
+        <dependency>
+            <groupId>org.wso2.msf4j</groupId>
+            <artifactId>msf4j-spring</artifactId>
+            <version>${msf4j.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.wso2.msf4j</groupId>
+            <artifactId>msf4j-mustache-template</artifactId>
+            <version>${msf4j.version}</version>
+        </dependency>
+    </dependencies>
+
+    <properties>
+        <microservice.mainClass>com.baeldung.msf4j.msf4jintro.Application</microservice.mainClass>
+        <msf4j.version>2.6.3</msf4j.version>
+    </properties>
 
 </project>
\ No newline at end of file
diff --git a/muleesb/pom.xml b/muleesb/pom.xml
index 4b74b6d4f4..c8468c1e00 100644
--- a/muleesb/pom.xml
+++ b/muleesb/pom.xml
@@ -1,14 +1,13 @@
 <?xml version="1.0" encoding="UTF-8" standalone="no"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
-
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <groupId>com.mycompany</groupId>
     <artifactId>muleesb</artifactId>
     <version>1.0.0-SNAPSHOT</version>
     <name>muleesb</name>
-	<packaging>mule</packaging>
-    
+    <packaging>mule</packaging>
+
     <parent>
         <groupId>com.baeldung</groupId>
         <artifactId>parent-modules</artifactId>
diff --git a/mustache/pom.xml b/mustache/pom.xml
index 0e382ae14b..9f2402f353 100644
--- a/mustache/pom.xml
+++ b/mustache/pom.xml
@@ -1,14 +1,14 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
-
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>mustache</artifactId>
     <name>mustache</name>
     <packaging>jar</packaging>
 
     <parent>
-        <artifactId>parent-boot-2</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-2</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../parent-boot-2</relativePath>
     </parent>
@@ -24,7 +24,7 @@
             <groupId>org.assertj</groupId>
             <artifactId>assertj-core</artifactId>
         </dependency>
-        
+
         <dependency>
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-web</artifactId>
@@ -50,7 +50,6 @@
             <artifactId>datafactory</artifactId>
             <version>${datafactory.version}</version>
         </dependency>
-
     </dependencies>
 
     <build>
diff --git a/mybatis/pom.xml b/mybatis/pom.xml
index b3149dc342..3b4695fb58 100644
--- a/mybatis/pom.xml
+++ b/mybatis/pom.xml
@@ -1,10 +1,10 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>mybatis</artifactId>
     <name>mybatis</name>
-	
+
     <parent>
         <groupId>com.baeldung</groupId>
         <artifactId>parent-modules</artifactId>
diff --git a/netflix/genie/pom.xml b/netflix/genie/pom.xml
index 9c78a11464..2288c5338a 100644
--- a/netflix/genie/pom.xml
+++ b/netflix/genie/pom.xml
@@ -1,13 +1,11 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
     xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-
-    <groupId>com.baeldung</groupId>
     <artifactId>genie</artifactId>
-    <packaging>jar</packaging>
     <version>1.0.0-SNAPSHOT</version>
-
     <name>Genie</name>
+    <packaging>jar</packaging>
     <description>Sample project for Netflix Genie</description>
 
     <parent>
@@ -15,4 +13,5 @@
         <artifactId>netflix</artifactId>
         <version>1.0.0-SNAPSHOT</version>
     </parent>
+
 </project>
\ No newline at end of file
diff --git a/netflix/pom.xml b/netflix/pom.xml
index 4b0954d777..6cf81cd7ab 100644
--- a/netflix/pom.xml
+++ b/netflix/pom.xml
@@ -1,13 +1,11 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-
-    <groupId>com.baeldung</groupId>
     <artifactId>netflix</artifactId>
-    <packaging>pom</packaging>
     <version>1.0.0-SNAPSHOT</version>
-    
     <name>Netflix</name>
+    <packaging>pom</packaging>
     <description>Module for Netflix projects</description>
 
     <parent>
@@ -19,4 +17,5 @@
     <modules>
         <module>genie</module>
     </modules>
+
 </project>
\ No newline at end of file
diff --git a/oauth2-framework-impl/oauth2-authorization-server/pom.xml b/oauth2-framework-impl/oauth2-authorization-server/pom.xml
index 8793eefe78..e608c09188 100644
--- a/oauth2-framework-impl/oauth2-authorization-server/pom.xml
+++ b/oauth2-framework-impl/oauth2-authorization-server/pom.xml
@@ -4,8 +4,8 @@
          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>oauth2-authorization-server</artifactId>
-    <packaging>war</packaging>
     <name>oauth2-authorization-server</name>
+    <packaging>war</packaging>
 
     <parent>
         <groupId>com.baeldung.oauth2</groupId>
@@ -30,6 +30,7 @@
             <version>${bcpkix-jdk15on.version}</version>
         </dependency>
     </dependencies>
+
     <build>
         <plugins>
             <plugin>
@@ -72,4 +73,5 @@
         <bcprov-jdk15on.version>1.62</bcprov-jdk15on.version>
         <bcpkix-jdk15on.version>1.62</bcpkix-jdk15on.version>
     </properties>
+
 </project>
diff --git a/oauth2-framework-impl/oauth2-client/pom.xml b/oauth2-framework-impl/oauth2-client/pom.xml
index 4f12095d30..febfe8dd27 100644
--- a/oauth2-framework-impl/oauth2-client/pom.xml
+++ b/oauth2-framework-impl/oauth2-client/pom.xml
@@ -4,8 +4,8 @@
          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>oauth2-client</artifactId>
-    <packaging>war</packaging>
     <name>oauth2-client</name>
+    <packaging>war</packaging>
 
     <parent>
         <groupId>com.baeldung.oauth2</groupId>
@@ -26,4 +26,5 @@
         <httpPort>9180</httpPort>
         <httpsPort>9543</httpsPort>
     </properties>
+
 </project>
diff --git a/oauth2-framework-impl/oauth2-resource-server/pom.xml b/oauth2-framework-impl/oauth2-resource-server/pom.xml
index 4c82668547..62f5889290 100644
--- a/oauth2-framework-impl/oauth2-resource-server/pom.xml
+++ b/oauth2-framework-impl/oauth2-resource-server/pom.xml
@@ -4,8 +4,8 @@
          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>oauth2-resource-server</artifactId>
-    <packaging>war</packaging>
     <name>oauth2-resource-server</name>
+    <packaging>war</packaging>
 
     <parent>
         <groupId>com.baeldung.oauth2</groupId>
diff --git a/oauth2-framework-impl/pom.xml b/oauth2-framework-impl/pom.xml
index 3c98b45112..24559d3c4d 100644
--- a/oauth2-framework-impl/pom.xml
+++ b/oauth2-framework-impl/pom.xml
@@ -6,8 +6,8 @@
     <groupId>com.baeldung.oauth2</groupId>
     <artifactId>oauth2-framework-impl</artifactId>
     <version>1.0-SNAPSHOT</version>
-    <packaging>pom</packaging>
     <name>oauth2-framework-impl</name>
+    <packaging>pom</packaging>
 
     <modules>
         <module>oauth2-authorization-server</module>
@@ -94,4 +94,5 @@
         <javaee-web-api.version>8.0</javaee-web-api.version>
         <microprofile-config-api.version>1.3</microprofile-config-api.version>
     </properties>
+
 </project>
diff --git a/optaplanner/pom.xml b/optaplanner/pom.xml
index bcf7080a1e..d907cfc830 100644
--- a/optaplanner/pom.xml
+++ b/optaplanner/pom.xml
@@ -4,11 +4,11 @@
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>optaplanner</artifactId>
-	<name>optaplanner</name>
+    <name>optaplanner</name>
 
     <parent>
-        <artifactId>parent-modules</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-modules</artifactId>
         <version>1.0.0-SNAPSHOT</version>
     </parent>
 
@@ -20,8 +20,8 @@
         </dependency>
     </dependencies>
 
-	<properties>
-		<optaplanner-core.version>7.9.0.Final</optaplanner-core.version>
-	</properties>
+    <properties>
+        <optaplanner-core.version>7.9.0.Final</optaplanner-core.version>
+    </properties>
 
 </project>
\ No newline at end of file
diff --git a/orika/pom.xml b/orika/pom.xml
index e4da5955bf..6974bd296e 100644
--- a/orika/pom.xml
+++ b/orika/pom.xml
@@ -1,7 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung</groupId>
     <artifactId>orika</artifactId>
     <version>1.0</version>
     <name>orika</name>
diff --git a/osgi/osgi-intro-sample-activator/pom.xml b/osgi/osgi-intro-sample-activator/pom.xml
index 2bc1c20eed..e6611dcf7d 100644
--- a/osgi/osgi-intro-sample-activator/pom.xml
+++ b/osgi/osgi-intro-sample-activator/pom.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://maven.apache.org/POM/4.0.0"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>osgi-intro-sample-activator</artifactId>
     <name>osgi-intro-sample-activator</name>
@@ -9,8 +9,8 @@
 
     <!-- com.baeldung/osgi-intro-sample-activator/1.0-SNAPSHOT -->
     <parent>
-        <artifactId>osgi</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>osgi</artifactId>
         <version>1.0-SNAPSHOT</version>
     </parent>
 
diff --git a/osgi/osgi-intro-sample-client/pom.xml b/osgi/osgi-intro-sample-client/pom.xml
index a630625ed2..e91b831db1 100644
--- a/osgi/osgi-intro-sample-client/pom.xml
+++ b/osgi/osgi-intro-sample-client/pom.xml
@@ -9,8 +9,8 @@
     <packaging>bundle</packaging>
 
     <parent>
-        <artifactId>osgi</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>osgi</artifactId>
         <version>1.0-SNAPSHOT</version>
     </parent>
 
@@ -49,4 +49,5 @@
     <properties>
         <osgi-intro-sample-service.version>1.0-SNAPSHOT</osgi-intro-sample-service.version>
     </properties>
+
 </project>
\ No newline at end of file
diff --git a/osgi/osgi-intro-sample-service/pom.xml b/osgi/osgi-intro-sample-service/pom.xml
index 4f0b108837..b44e1f9be3 100644
--- a/osgi/osgi-intro-sample-service/pom.xml
+++ b/osgi/osgi-intro-sample-service/pom.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://maven.apache.org/POM/4.0.0"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>osgi-intro-sample-service</artifactId>
     <name>osgi-intro-sample-service</name>
@@ -9,8 +9,8 @@
 
     <!-- mvn:com.baeldung/osgi-intro-sample-service/1.0-SNAPSHOT -->
     <parent>
-        <artifactId>osgi</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>osgi</artifactId>
         <version>1.0-SNAPSHOT</version>
     </parent>
 
diff --git a/osgi/pom.xml b/osgi/pom.xml
index 9ebcb09091..ed708e8004 100644
--- a/osgi/pom.xml
+++ b/osgi/pom.xml
@@ -1,11 +1,11 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://maven.apache.org/POM/4.0.0"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>osgi</artifactId>
-    <packaging>pom</packaging>
     <version>1.0-SNAPSHOT</version>
-	<name>osgi</name>
+    <name>osgi</name>
+    <packaging>pom</packaging>
 
     <parent>
         <groupId>com.baeldung</groupId>
diff --git a/parent-boot-1/pom.xml b/parent-boot-1/pom.xml
index 8f1af24466..df2a7f8400 100644
--- a/parent-boot-1/pom.xml
+++ b/parent-boot-1/pom.xml
@@ -1,61 +1,62 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
-	<modelVersion>4.0.0</modelVersion>
-	<artifactId>parent-boot-1</artifactId>
-	<version>0.0.1-SNAPSHOT</version>
-	<name>parent-boot-1</name>
-	<packaging>pom</packaging>
-	<description>Parent for all Spring Boot 1.x modules</description>
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <artifactId>parent-boot-1</artifactId>
+    <version>0.0.1-SNAPSHOT</version>
+    <name>parent-boot-1</name>
+    <packaging>pom</packaging>
+    <description>Parent for all Spring Boot 1.x modules</description>
 
-	<parent>
-		<groupId>com.baeldung</groupId>
-		<artifactId>parent-modules</artifactId>
-		<version>1.0.0-SNAPSHOT</version>
-	</parent>
+    <parent>
+        <groupId>com.baeldung</groupId>
+        <artifactId>parent-modules</artifactId>
+        <version>1.0.0-SNAPSHOT</version>
+    </parent>
 
-	<dependencyManagement>
-		<dependencies>
-			<dependency>
-				<groupId>org.springframework.boot</groupId>
-				<artifactId>spring-boot-dependencies</artifactId>
-				<version>${spring-boot.version}</version>
-				<type>pom</type>
-				<scope>import</scope>
-			</dependency>
-		</dependencies>
-	</dependencyManagement>
-	<dependencies>
-		<dependency>
-			<groupId>io.rest-assured</groupId>
-			<artifactId>rest-assured</artifactId>
-			<version>${rest-assured.version}</version>
-		</dependency>
-		<dependency>
-			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-starter-test</artifactId>
-			<scope>test</scope>
-		</dependency>
-	</dependencies>
+    <dependencyManagement>
+        <dependencies>
+            <dependency>
+                <groupId>org.springframework.boot</groupId>
+                <artifactId>spring-boot-dependencies</artifactId>
+                <version>${spring-boot.version}</version>
+                <type>pom</type>
+                <scope>import</scope>
+            </dependency>
+        </dependencies>
+    </dependencyManagement>
+    <dependencies>
+        <dependency>
+            <groupId>io.rest-assured</groupId>
+            <artifactId>rest-assured</artifactId>
+            <version>${rest-assured.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-test</artifactId>
+            <scope>test</scope>
+        </dependency>
+    </dependencies>
 
-	<build>
-		<pluginManagement>
-			<plugins>
-				<plugin>
-					<groupId>org.springframework.boot</groupId>
-					<artifactId>spring-boot-maven-plugin</artifactId>
-					<version>${spring-boot.version}</version>
-					<configuration>
-						<mainClass>${start-class}</mainClass>
-						<!-- this is necessary as we're not using the Boot parent -->
-					</configuration>
-				</plugin>
-			</plugins>
-		</pluginManagement>
-	</build>
+    <build>
+        <pluginManagement>
+            <plugins>
+                <plugin>
+                    <groupId>org.springframework.boot</groupId>
+                    <artifactId>spring-boot-maven-plugin</artifactId>
+                    <version>${spring-boot.version}</version>
+                    <configuration>
+                        <mainClass>${start-class}</mainClass>
+                        <!-- this is necessary as we're not using the Boot parent -->
+                    </configuration>
+                </plugin>
+            </plugins>
+        </pluginManagement>
+    </build>
+
+    <properties>
+        <rest-assured.version>3.1.0</rest-assured.version>
+        <spring-boot.version>1.5.22.RELEASE</spring-boot.version>
+    </properties>
 
-	<properties>
-		<rest-assured.version>3.1.0</rest-assured.version>
-		<spring-boot.version>1.5.22.RELEASE</spring-boot.version>
-	</properties>
-	
 </project>
diff --git a/parent-boot-2/pom.xml b/parent-boot-2/pom.xml
index fe272b56a3..881a0f1d67 100644
--- a/parent-boot-2/pom.xml
+++ b/parent-boot-2/pom.xml
@@ -1,3 +1,4 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
@@ -80,4 +81,5 @@
         <thin.version>1.0.22.RELEASE</thin.version>
         <spring-boot.version>2.1.9.RELEASE</spring-boot.version>
     </properties>
+
 </project>
diff --git a/parent-java/pom.xml b/parent-java/pom.xml
index 5b8b7ceb9b..47965fc36d 100644
--- a/parent-java/pom.xml
+++ b/parent-java/pom.xml
@@ -1,11 +1,12 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>parent-java</artifactId>
     <version>0.0.1-SNAPSHOT</version>
     <name>parent-java</name>
-    <description>Parent for all java modules</description>
     <packaging>pom</packaging>
+    <description>Parent for all java modules</description>
 
     <parent>
         <groupId>com.baeldung</groupId>
@@ -21,7 +22,7 @@
             <artifactId>guava</artifactId>
             <version>${guava.version}</version>
         </dependency>
-        <dependency> 
+        <dependency>
             <groupId>commons-io</groupId>
             <artifactId>commons-io</artifactId>
             <version>${commons.io.version}</version>
diff --git a/parent-kotlin/pom.xml b/parent-kotlin/pom.xml
index 84844dbb8b..a180343378 100644
--- a/parent-kotlin/pom.xml
+++ b/parent-kotlin/pom.xml
@@ -1,219 +1,220 @@
 <?xml version="1.0"?>
 <project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd" xmlns="http://maven.apache.org/POM/4.0.0"
-		 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
-	<modelVersion>4.0.0</modelVersion>
-	<artifactId>parent-kotlin</artifactId>
-	<name>parent-kotlin</name>
-	<packaging>pom</packaging>
-	<description>Parent for all kotlin modules</description>
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
+    <modelVersion>4.0.0</modelVersion>
+    <artifactId>parent-kotlin</artifactId>
+    <name>parent-kotlin</name>
+    <packaging>pom</packaging>
+    <description>Parent for all kotlin modules</description>
 
-	<parent>
-		<groupId>com.baeldung</groupId>
-		<artifactId>parent-modules</artifactId>
-		<version>1.0.0-SNAPSHOT</version>
-	</parent>
+    <parent>
+        <groupId>com.baeldung</groupId>
+        <artifactId>parent-modules</artifactId>
+        <version>1.0.0-SNAPSHOT</version>
+    </parent>
 
-	<repositories>
-		<repository>
-			<id>jcenter</id>
-			<url>http://jcenter.bintray.com</url>
-		</repository>
-		<repository>
-			<id>kotlin-ktor</id>
-			<url>https://dl.bintray.com/kotlin/ktor/</url>
-		</repository>
-		<repository>
-			<id>kotlin-eap</id>
-			<url>http://dl.bintray.com/kotlin/kotlin-eap</url>
-		</repository>
-		<repository>
-			<id>spring-milestone</id>
-			<name>Spring Milestone Repository</name>
-			<url>http://repo.spring.io/milestone</url>
-		</repository>
-	</repositories>
+    <repositories>
+        <repository>
+            <id>jcenter</id>
+            <url>http://jcenter.bintray.com</url>
+        </repository>
+        <repository>
+            <id>kotlin-ktor</id>
+            <url>https://dl.bintray.com/kotlin/ktor/</url>
+        </repository>
+        <repository>
+            <id>kotlin-eap</id>
+            <url>http://dl.bintray.com/kotlin/kotlin-eap</url>
+        </repository>
+        <repository>
+            <id>spring-milestone</id>
+            <name>Spring Milestone Repository</name>
+            <url>http://repo.spring.io/milestone</url>
+        </repository>
+    </repositories>
 
-	<pluginRepositories>
-		<pluginRepository>
-			<id>kotlin-eap</id>
-			<url>http://dl.bintray.com/kotlin/kotlin-eap</url>
-		</pluginRepository>
-	</pluginRepositories>
+    <pluginRepositories>
+        <pluginRepository>
+            <id>kotlin-eap</id>
+            <url>http://dl.bintray.com/kotlin/kotlin-eap</url>
+        </pluginRepository>
+    </pluginRepositories>
 
-	<dependencyManagement>
-		<dependencies>
-			<dependency>
-				<groupId>org.springframework.boot</groupId>
-				<artifactId>spring-boot-dependencies</artifactId>
-				<version>2.2.0.M4</version>
-				<type>pom</type>
-				<scope>import</scope>
-			</dependency>
-		</dependencies>
-	</dependencyManagement>
+    <dependencyManagement>
+        <dependencies>
+            <dependency>
+                <groupId>org.springframework.boot</groupId>
+                <artifactId>spring-boot-dependencies</artifactId>
+                <version>2.2.0.M4</version>
+                <type>pom</type>
+                <scope>import</scope>
+            </dependency>
+        </dependencies>
+    </dependencyManagement>
 
-	<dependencies>
-		<dependency>
-			<groupId>org.jetbrains.kotlin</groupId>
-			<artifactId>kotlin-stdlib-jdk8</artifactId>
-		</dependency>
-		<dependency>
-			<groupId>org.jetbrains.kotlin</groupId>
-			<artifactId>kotlin-stdlib</artifactId>
-		</dependency>
-		<dependency>
-			<groupId>org.jetbrains.kotlin</groupId>
-			<artifactId>kotlin-reflect</artifactId>
-		</dependency>
+    <dependencies>
+        <dependency>
+            <groupId>org.jetbrains.kotlin</groupId>
+            <artifactId>kotlin-stdlib-jdk8</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.jetbrains.kotlin</groupId>
+            <artifactId>kotlin-stdlib</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.jetbrains.kotlin</groupId>
+            <artifactId>kotlin-reflect</artifactId>
+        </dependency>
 
-		<dependency>
-			<groupId>org.jetbrains.kotlinx</groupId>
-			<artifactId>kotlinx-coroutines-core</artifactId>
-			<version>${kotlinx.version}</version>
-		</dependency>
+        <dependency>
+            <groupId>org.jetbrains.kotlinx</groupId>
+            <artifactId>kotlinx-coroutines-core</artifactId>
+            <version>${kotlinx.version}</version>
+        </dependency>
 
-		<dependency>
-			<groupId>io.ktor</groupId>
-			<artifactId>ktor-server-netty</artifactId>
-			<version>${ktor.io.version}</version>
-		</dependency>
-		<dependency>
-			<groupId>io.ktor</groupId>
-			<artifactId>ktor-gson</artifactId>
-			<version>${ktor.io.version}</version>
-		</dependency>
-		<dependency>
-			<groupId>com.fasterxml.jackson.module</groupId>
-			<artifactId>jackson-module-kotlin</artifactId>
-		</dependency>
+        <dependency>
+            <groupId>io.ktor</groupId>
+            <artifactId>ktor-server-netty</artifactId>
+            <version>${ktor.io.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>io.ktor</groupId>
+            <artifactId>ktor-gson</artifactId>
+            <version>${ktor.io.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>com.fasterxml.jackson.module</groupId>
+            <artifactId>jackson-module-kotlin</artifactId>
+        </dependency>
 
-		<dependency>
-			<groupId>org.jetbrains.kotlin</groupId>
-			<artifactId>kotlin-test-junit</artifactId>
-			<scope>test</scope>
-		</dependency>
+        <dependency>
+            <groupId>org.jetbrains.kotlin</groupId>
+            <artifactId>kotlin-test-junit</artifactId>
+            <scope>test</scope>
+        </dependency>
 
-	</dependencies>
+    </dependencies>
 
-	<build>
-		<plugins>
-			<plugin>
-				<groupId>org.jetbrains.kotlin</groupId>
-				<artifactId>kotlin-maven-plugin</artifactId>
-				<version>${kotlin.version}</version>
-				<executions>
-					<execution>
-						<id>compile</id>
-						<goals>
-							<goal>compile</goal>
-						</goals>
-						<configuration>
-							<sourceDirs>
-								<sourceDir>${project.basedir}/src/main/kotlin</sourceDir>
-								<sourceDir>${project.basedir}/src/main/java</sourceDir>
-							</sourceDirs>
-							<jvmTarget>${java.version}</jvmTarget>
-							<args>
-								<arg>-Xjvm-default=enable</arg>
-							</args>
-						</configuration>
-					</execution>
-					<execution>
-						<id>test-compile</id>
-						<goals>
-							<goal>test-compile</goal>
-						</goals>
-						<configuration>
-							<sourceDirs>
-								<sourceDir>${project.basedir}/src/test/kotlin</sourceDir>
-								<sourceDir>${project.basedir}/src/test/java</sourceDir>
-							</sourceDirs>
-							<jvmTarget>${java.version}</jvmTarget>
-						</configuration>
-					</execution>
-				</executions>
-				<configuration>
-					<compilerPlugins>
-						<plugin>spring</plugin>
-					</compilerPlugins>
-				</configuration>
-				<dependencies>
-					<dependency>
-						<groupId>org.jetbrains.kotlin</groupId>
-						<artifactId>kotlin-maven-allopen</artifactId>
-						<version>${kotlin.version}</version>
-					</dependency>
-				</dependencies>
-			</plugin>
-			<plugin>
-				<groupId>org.apache.maven.plugins</groupId>
-				<artifactId>maven-compiler-plugin</artifactId>
-				<version>${maven-compiler-plugin.version}</version>
-				<configuration>
-					<source>${java.version}</source>
-					<target>${java.version}</target>
-				</configuration>
-				<executions>
-					<!-- Replacing default-compile as it is treated specially by maven -->
-					<execution>
-						<id>default-compile</id>
-						<phase>none</phase>
-					</execution>
-					<!-- Replacing default-testCompile as it is treated specially by maven -->
-					<execution>
-						<id>default-testCompile</id>
-						<phase>none</phase>
-					</execution>
-					<execution>
-						<id>java-compile</id>
-						<phase>compile</phase>
-						<goals>
-							<goal>compile</goal>
-						</goals>
-					</execution>
-					<execution>
-						<id>java-test-compile</id>
-						<phase>test-compile</phase>
-						<goals>
-							<goal>testCompile</goal>
-						</goals>
-					</execution>
-				</executions>
-			</plugin>
-			<plugin>
-				<groupId>org.apache.maven.plugins</groupId>
-				<artifactId>maven-failsafe-plugin</artifactId>
-				<version>${maven-failsafe-plugin.version}</version>
-				<dependencies>
-					<dependency>
-						<groupId>org.junit.platform</groupId>
-						<artifactId>junit-platform-surefire-provider</artifactId>
-						<version>${junit.platform.version}</version>
-					</dependency>
-				</dependencies>
-				<executions>
-					<execution>
-						<id>junit5</id>
-						<goals>
-							<goal>integration-test</goal>
-							<goal>verify</goal>
-						</goals>
-						<configuration>
-							<includes>
-								<include>**/*Test5.java</include>
-							</includes>
-						</configuration>
-					</execution>
-				</executions>
-			</plugin>
-		</plugins>
-	</build>
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.jetbrains.kotlin</groupId>
+                <artifactId>kotlin-maven-plugin</artifactId>
+                <version>${kotlin.version}</version>
+                <executions>
+                    <execution>
+                        <id>compile</id>
+                        <goals>
+                            <goal>compile</goal>
+                        </goals>
+                        <configuration>
+                            <sourceDirs>
+                                <sourceDir>${project.basedir}/src/main/kotlin</sourceDir>
+                                <sourceDir>${project.basedir}/src/main/java</sourceDir>
+                            </sourceDirs>
+                            <jvmTarget>${java.version}</jvmTarget>
+                            <args>
+                                <arg>-Xjvm-default=enable</arg>
+                            </args>
+                        </configuration>
+                    </execution>
+                    <execution>
+                        <id>test-compile</id>
+                        <goals>
+                            <goal>test-compile</goal>
+                        </goals>
+                        <configuration>
+                            <sourceDirs>
+                                <sourceDir>${project.basedir}/src/test/kotlin</sourceDir>
+                                <sourceDir>${project.basedir}/src/test/java</sourceDir>
+                            </sourceDirs>
+                            <jvmTarget>${java.version}</jvmTarget>
+                        </configuration>
+                    </execution>
+                </executions>
+                <configuration>
+                    <compilerPlugins>
+                        <plugin>spring</plugin>
+                    </compilerPlugins>
+                </configuration>
+                <dependencies>
+                    <dependency>
+                        <groupId>org.jetbrains.kotlin</groupId>
+                        <artifactId>kotlin-maven-allopen</artifactId>
+                        <version>${kotlin.version}</version>
+                    </dependency>
+                </dependencies>
+            </plugin>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-compiler-plugin</artifactId>
+                <version>${maven-compiler-plugin.version}</version>
+                <configuration>
+                    <source>${java.version}</source>
+                    <target>${java.version}</target>
+                </configuration>
+                <executions>
+                    <!-- Replacing default-compile as it is treated specially by maven -->
+                    <execution>
+                        <id>default-compile</id>
+                        <phase>none</phase>
+                    </execution>
+                    <!-- Replacing default-testCompile as it is treated specially by maven -->
+                    <execution>
+                        <id>default-testCompile</id>
+                        <phase>none</phase>
+                    </execution>
+                    <execution>
+                        <id>java-compile</id>
+                        <phase>compile</phase>
+                        <goals>
+                            <goal>compile</goal>
+                        </goals>
+                    </execution>
+                    <execution>
+                        <id>java-test-compile</id>
+                        <phase>test-compile</phase>
+                        <goals>
+                            <goal>testCompile</goal>
+                        </goals>
+                    </execution>
+                </executions>
+            </plugin>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-failsafe-plugin</artifactId>
+                <version>${maven-failsafe-plugin.version}</version>
+                <dependencies>
+                    <dependency>
+                        <groupId>org.junit.platform</groupId>
+                        <artifactId>junit-platform-surefire-provider</artifactId>
+                        <version>${junit.platform.version}</version>
+                    </dependency>
+                </dependencies>
+                <executions>
+                    <execution>
+                        <id>junit5</id>
+                        <goals>
+                            <goal>integration-test</goal>
+                            <goal>verify</goal>
+                        </goals>
+                        <configuration>
+                            <includes>
+                                <include>**/*Test5.java</include>
+                            </includes>
+                        </configuration>
+                    </execution>
+                </executions>
+            </plugin>
+        </plugins>
+    </build>
+
+    <properties>
+        <kotlin.version>1.3.30</kotlin.version>
+        <kotlinx.version>1.0.0</kotlinx.version>
+        <ktor.io.version>0.9.5</ktor.io.version>
+        <assertj.version>3.12.0</assertj.version>
+        <junit.platform.version>1.3.2</junit.platform.version>
+    </properties>
 
-	<properties>
-		<kotlin.version>1.3.30</kotlin.version>
-		<kotlinx.version>1.0.0</kotlinx.version>
-		<ktor.io.version>0.9.5</ktor.io.version>
-		<assertj.version>3.12.0</assertj.version>
-		<junit.platform.version>1.3.2</junit.platform.version>
-	</properties>
 </project>
diff --git a/parent-spring-4/pom.xml b/parent-spring-4/pom.xml
index b98d962580..671ca7db6b 100644
--- a/parent-spring-4/pom.xml
+++ b/parent-spring-4/pom.xml
@@ -1,5 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>parent-spring-4</artifactId>
     <version>0.0.1-SNAPSHOT</version>
diff --git a/parent-spring-5/pom.xml b/parent-spring-5/pom.xml
index f126006bcb..9260f88de5 100644
--- a/parent-spring-5/pom.xml
+++ b/parent-spring-5/pom.xml
@@ -1,12 +1,13 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0"
-    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>parent-spring-5</artifactId>
     <version>0.0.1-SNAPSHOT</version>
     <name>parent-spring-5</name>
-    <description>Parent for all spring 5 core modules</description>
     <packaging>pom</packaging>
+    <description>Parent for all spring 5 core modules</description>
 
     <parent>
         <groupId>com.baeldung</groupId>
diff --git a/patterns/design-patterns-architectural/pom.xml b/patterns/design-patterns-architectural/pom.xml
index cf99919e7c..81cc55aa21 100644
--- a/patterns/design-patterns-architectural/pom.xml
+++ b/patterns/design-patterns-architectural/pom.xml
@@ -1,12 +1,12 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>design-patterns-architectural</artifactId>
     <version>1.0</version>
     <name>design-patterns-architectural</name>
-	<packaging>jar</packaging>
-	
+    <packaging>jar</packaging>
+
     <parent>
         <groupId>com.baeldung</groupId>
         <artifactId>patterns</artifactId>
@@ -21,8 +21,8 @@
             <version>${assertj-core.version}</version>
             <scope>test</scope>
         </dependency>
-        
-    	<dependency>
+
+        <dependency>
             <groupId>javax</groupId>
             <artifactId>javaee-api</artifactId>
             <version>${javaee.version}</version>
@@ -39,16 +39,15 @@
             <type>jar</type>
         </dependency>
     </dependencies>
-	
+
     <properties>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <maven.compiler.source>1.8</maven.compiler.source>
         <maven.compiler.target>1.8</maven.compiler.target>
-        
         <assertj-core.version>3.9.1</assertj-core.version>
-        
         <javaee.version>8.0</javaee.version>
         <hibernate-core.version>5.2.16.Final</hibernate-core.version>
         <mysql-connector.version>6.0.6</mysql-connector.version>
     </properties>
+
 </project>
diff --git a/patterns/design-patterns-behavioral-2/pom.xml b/patterns/design-patterns-behavioral-2/pom.xml
index 7e73c0ad19..4cbe6e32b9 100644
--- a/patterns/design-patterns-behavioral-2/pom.xml
+++ b/patterns/design-patterns-behavioral-2/pom.xml
@@ -1,12 +1,12 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>design-patterns-behavioral-2</artifactId>
     <version>1.0</version>
     <name>design-patterns-behavioral-2</name>
-	<packaging>jar</packaging>
-	
+    <packaging>jar</packaging>
+
     <parent>
         <groupId>com.baeldung</groupId>
         <artifactId>patterns</artifactId>
@@ -22,12 +22,12 @@
             <scope>test</scope>
         </dependency>
     </dependencies>
-	
+
     <properties>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <maven.compiler.source>1.8</maven.compiler.source>
         <maven.compiler.target>1.8</maven.compiler.target>
-        
         <assertj.version>3.12.2</assertj.version>
     </properties>
+
 </project>
diff --git a/patterns/design-patterns-behavioral/pom.xml b/patterns/design-patterns-behavioral/pom.xml
index d6603f94ec..c4ae00435e 100644
--- a/patterns/design-patterns-behavioral/pom.xml
+++ b/patterns/design-patterns-behavioral/pom.xml
@@ -1,12 +1,12 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>design-patterns-behavioral</artifactId>
     <version>1.0</version>
     <name>design-patterns-behavioral</name>
-	<packaging>jar</packaging>
-	
+    <packaging>jar</packaging>
+
     <parent>
         <groupId>com.baeldung</groupId>
         <artifactId>patterns</artifactId>
@@ -31,7 +31,7 @@
             <artifactId>commons-lang3</artifactId>
             <version>${commons-lang3.version}</version>
         </dependency>
-        
+
         <dependency>
             <groupId>org.assertj</groupId>
             <artifactId>assertj-core</artifactId>
@@ -39,13 +39,13 @@
             <scope>test</scope>
         </dependency>
     </dependencies>
-	
+
     <properties>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <maven.compiler.source>1.8</maven.compiler.source>
         <maven.compiler.target>1.8</maven.compiler.target>
-        
         <intellij.annotations.version>16.0.2</intellij.annotations.version>
         <assertj-core.version>3.9.1</assertj-core.version>
     </properties>
+
 </project>
diff --git a/patterns/design-patterns-cloud/pom.xml b/patterns/design-patterns-cloud/pom.xml
index b5265a1f94..51f6a42f76 100644
--- a/patterns/design-patterns-cloud/pom.xml
+++ b/patterns/design-patterns-cloud/pom.xml
@@ -6,8 +6,8 @@
     <groupId>com.baeldung</groupId>
     <artifactId>design-patterns-cloud</artifactId>
     <version>1.0.0-SNAPSHOT</version>
-    <packaging>pom</packaging>
     <name>design-patterns-cloud</name>
+    <packaging>pom</packaging>
 
     <dependencies>
         <dependency>
diff --git a/patterns/design-patterns-creational/pom.xml b/patterns/design-patterns-creational/pom.xml
index 351f69f749..aa20c1c085 100644
--- a/patterns/design-patterns-creational/pom.xml
+++ b/patterns/design-patterns-creational/pom.xml
@@ -1,12 +1,12 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>design-patterns-creational</artifactId>
     <version>1.0</version>
     <name>design-patterns-creational</name>
-	<packaging>jar</packaging>
-	
+    <packaging>jar</packaging>
+
     <parent>
         <groupId>com.baeldung</groupId>
         <artifactId>patterns</artifactId>
@@ -26,7 +26,7 @@
             <artifactId>jsr305</artifactId>
             <version>${javax.annotations.version}</version>
         </dependency>
-        
+
         <dependency>
             <groupId>org.assertj</groupId>
             <artifactId>assertj-core</artifactId>
@@ -34,14 +34,15 @@
             <scope>test</scope>
         </dependency>
     </dependencies>
-	
+
     <properties>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <maven.compiler.source>1.8</maven.compiler.source>
         <maven.compiler.target>1.8</maven.compiler.target>
-        
+
         <freebuilder.version>2.4.1</freebuilder.version>
         <javax.annotations.version>3.0.2</javax.annotations.version>
         <assertj-core.version>3.9.1</assertj-core.version>
     </properties>
+
 </project>
diff --git a/patterns/design-patterns-functional/pom.xml b/patterns/design-patterns-functional/pom.xml
index 5df7cc0cb9..ec37ad1e8d 100644
--- a/patterns/design-patterns-functional/pom.xml
+++ b/patterns/design-patterns-functional/pom.xml
@@ -1,12 +1,12 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>design-patterns-functional</artifactId>
     <version>1.0</version>
     <name>design-patterns-functional</name>
-	<packaging>jar</packaging>
-	
+    <packaging>jar</packaging>
+
     <parent>
         <groupId>com.baeldung</groupId>
         <artifactId>patterns</artifactId>
@@ -14,12 +14,10 @@
         <relativePath>..</relativePath>
     </parent>
 
-    <dependencies>
-    </dependencies>
-	
     <properties>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <maven.compiler.source>1.8</maven.compiler.source>
         <maven.compiler.target>1.8</maven.compiler.target>
     </properties>
+
 </project>
diff --git a/patterns/design-patterns-structural/pom.xml b/patterns/design-patterns-structural/pom.xml
index 63806058c9..97e0b9b38b 100644
--- a/patterns/design-patterns-structural/pom.xml
+++ b/patterns/design-patterns-structural/pom.xml
@@ -1,12 +1,12 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>design-patterns-structural</artifactId>
     <version>1.0</version>
     <name>design-patterns-structural</name>
-	<packaging>jar</packaging>
-	
+    <packaging>jar</packaging>
+
     <parent>
         <groupId>com.baeldung</groupId>
         <artifactId>patterns</artifactId>
@@ -21,10 +21,11 @@
             <version>${log4j.version}</version>
         </dependency>
     </dependencies>
-	
+
     <properties>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <maven.compiler.source>1.8</maven.compiler.source>
         <maven.compiler.target>1.8</maven.compiler.target>
     </properties>
+    
 </project>
diff --git a/patterns/dip/pom.xml b/patterns/dip/pom.xml
index bc793c0090..37c980f2e3 100644
--- a/patterns/dip/pom.xml
+++ b/patterns/dip/pom.xml
@@ -5,8 +5,8 @@
     <modelVersion>4.0.0</modelVersion>
     <groupId>com.baeldung.dip</groupId>
     <artifactId>dip</artifactId>
-    <name>dip</name>
     <version>1.0-SNAPSHOT</version>
+    <name>dip</name>
 
     <parent>
         <groupId>com.baeldung</groupId>
@@ -29,7 +29,7 @@
             <scope>test</scope>
         </dependency>
     </dependencies>
-    
+
     <properties>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <maven.compiler.source>11</maven.compiler.source>
diff --git a/patterns/front-controller/pom.xml b/patterns/front-controller/pom.xml
index bb003dd00a..1de3b82fcd 100644
--- a/patterns/front-controller/pom.xml
+++ b/patterns/front-controller/pom.xml
@@ -1,14 +1,14 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>front-controller</artifactId>
-	<name>front-controller</name>
+    <name>front-controller</name>
     <packaging>war</packaging>
 
     <parent>
-        <artifactId>patterns</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>patterns</artifactId>
         <version>1.0.0-SNAPSHOT</version>
         <relativePath>..</relativePath>
     </parent>
@@ -37,4 +37,5 @@
             </plugin>
         </plugins>
     </build>
+    
 </project>
diff --git a/patterns/intercepting-filter/pom.xml b/patterns/intercepting-filter/pom.xml
index 33589dc242..435c1e13cf 100644
--- a/patterns/intercepting-filter/pom.xml
+++ b/patterns/intercepting-filter/pom.xml
@@ -3,7 +3,7 @@
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>intercepting-filter</artifactId>
-	<name>intercepting-filter</name>
+    <name>intercepting-filter</name>
     <packaging>war</packaging>
 
     <parent>
diff --git a/patterns/pom.xml b/patterns/pom.xml
index 331415bf5b..8a510769a9 100644
--- a/patterns/pom.xml
+++ b/patterns/pom.xml
@@ -3,8 +3,8 @@
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>patterns</artifactId>
-    <packaging>pom</packaging>
     <name>patterns</name>
+    <packaging>pom</packaging>
 
     <parent>
         <groupId>com.baeldung</groupId>
diff --git a/patterns/solid/pom.xml b/patterns/solid/pom.xml
index faf8bdc8d9..1b0e35339d 100644
--- a/patterns/solid/pom.xml
+++ b/patterns/solid/pom.xml
@@ -3,10 +3,9 @@
          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung</groupId>
     <artifactId>solid</artifactId>
-    <name>solid</name>
     <version>1.0-SNAPSHOT</version>
+    <name>solid</name>
 
     <parent>
         <groupId>com.baeldung</groupId>
diff --git a/pdf/pom.xml b/pdf/pom.xml
index bf5d475163..d148aa1670 100644
--- a/pdf/pom.xml
+++ b/pdf/pom.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0"?>
 <project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd" xmlns="http://maven.apache.org/POM/4.0.0"
-    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>pdf</artifactId>
     <name>pdf</name>
diff --git a/performance-tests/pom.xml b/performance-tests/pom.xml
index 4dc480ef86..94588c99d4 100644
--- a/performance-tests/pom.xml
+++ b/performance-tests/pom.xml
@@ -1,15 +1,14 @@
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung</groupId>
     <artifactId>performance-tests</artifactId>
     <version>1.0</version>
-    <packaging>jar</packaging>
     <name>performance-tests</name>
+    <packaging>jar</packaging>
 
     <parent>
-        <artifactId>parent-modules</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-modules</artifactId>
         <version>1.0.0-SNAPSHOT</version>
     </parent>
 
diff --git a/persistence-modules/activejdbc/pom.xml b/persistence-modules/activejdbc/pom.xml
index 45a618b840..47643cd639 100644
--- a/persistence-modules/activejdbc/pom.xml
+++ b/persistence-modules/activejdbc/pom.xml
@@ -1,5 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>activejdbc</artifactId>
     <version>1.0-SNAPSHOT</version>
@@ -8,8 +9,8 @@
     <url>http://maven.apache.org</url>
 
     <parent>
-        <artifactId>parent-modules</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-modules</artifactId>
         <version>1.0.0-SNAPSHOT</version>
         <relativePath>../../</relativePath>
     </parent>
diff --git a/persistence-modules/apache-cayenne/pom.xml b/persistence-modules/apache-cayenne/pom.xml
index 776b2b5233..7c94c5ba39 100644
--- a/persistence-modules/apache-cayenne/pom.xml
+++ b/persistence-modules/apache-cayenne/pom.xml
@@ -27,7 +27,6 @@
             <version>${mysql.connector.version}</version>
             <scope>runtime</scope>
         </dependency>
-
     </dependencies>
 
     <build>
diff --git a/persistence-modules/core-java-persistence/pom.xml b/persistence-modules/core-java-persistence/pom.xml
index 2760489ce1..80c4053743 100644
--- a/persistence-modules/core-java-persistence/pom.xml
+++ b/persistence-modules/core-java-persistence/pom.xml
@@ -1,3 +1,4 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
diff --git a/persistence-modules/deltaspike/pom.xml b/persistence-modules/deltaspike/pom.xml
index 46e774edff..141412654f 100644
--- a/persistence-modules/deltaspike/pom.xml
+++ b/persistence-modules/deltaspike/pom.xml
@@ -1,8 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung</groupId>
     <artifactId>deltaspike</artifactId>
     <version>1.0</version>
     <name>deltaspike</name>
diff --git a/persistence-modules/elasticsearch/pom.xml b/persistence-modules/elasticsearch/pom.xml
index 943cfa6a23..878dd5847b 100644
--- a/persistence-modules/elasticsearch/pom.xml
+++ b/persistence-modules/elasticsearch/pom.xml
@@ -2,7 +2,6 @@
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung</groupId>
     <artifactId>elasticsearch</artifactId>
     <version>0.0.1-SNAPSHOT</version>
     <name>elasticsearch</name>
@@ -31,4 +30,5 @@
     <properties>
         <jest.version>6.3.1</jest.version>
     </properties>
+    
 </project>
diff --git a/persistence-modules/flyway/pom.xml b/persistence-modules/flyway/pom.xml
index 99549ee3fc..01b3dab6ee 100644
--- a/persistence-modules/flyway/pom.xml
+++ b/persistence-modules/flyway/pom.xml
@@ -8,8 +8,8 @@
     <description>Flyway Callbacks Demo</description>
 
     <parent>
-        <artifactId>parent-boot-1</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-1</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../../parent-boot-1</relativePath>
     </parent>
diff --git a/persistence-modules/hbase/pom.xml b/persistence-modules/hbase/pom.xml
index daf0db5291..9403239fb2 100644
--- a/persistence-modules/hbase/pom.xml
+++ b/persistence-modules/hbase/pom.xml
@@ -1,13 +1,13 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>hbase</artifactId>
-	<name>hbase</name>
+    <name>hbase</name>
 
     <parent>
-        <artifactId>parent-modules</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-modules</artifactId>
         <version>1.0.0-SNAPSHOT</version>
         <relativePath>../../</relativePath>
     </parent>
diff --git a/persistence-modules/hibernate-mapping/pom.xml b/persistence-modules/hibernate-mapping/pom.xml
index 98c946a6e9..a0a2a047e3 100644
--- a/persistence-modules/hibernate-mapping/pom.xml
+++ b/persistence-modules/hibernate-mapping/pom.xml
@@ -2,9 +2,9 @@
 <project xmlns="http://maven.apache.org/POM/4.0.0"
          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
     <artifactId>hibernate-mapping</artifactId>
     <version>1.0.0-SNAPSHOT</version>
-    <modelVersion>4.0.0</modelVersion>
     <name>hibernate-mapping</name>
 
     <parent>
diff --git a/persistence-modules/hibernate-ogm/pom.xml b/persistence-modules/hibernate-ogm/pom.xml
index 7ac29b1720..bb15881788 100644
--- a/persistence-modules/hibernate-ogm/pom.xml
+++ b/persistence-modules/hibernate-ogm/pom.xml
@@ -1,11 +1,10 @@
 <?xml version="1.0"?>
 <project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd" xmlns="http://maven.apache.org/POM/4.0.0"
-    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung</groupId>
     <artifactId>hibernate-ogm</artifactId>
     <version>0.0.1-SNAPSHOT</version>
-	<name>hibernate-ogm</name>
+    <name>hibernate-ogm</name>
 
     <parent>
         <groupId>com.baeldung</groupId>
@@ -15,37 +14,37 @@
     </parent>
 
     <dependencies>
-		<!-- MongoDB -->
-		<dependency>
-			<groupId>org.hibernate.ogm</groupId>
-			<artifactId>hibernate-ogm-mongodb</artifactId>
-			<version>${hibernate.version}</version>
-		</dependency>
-		<!-- Neo4j -->
-		<dependency>
-			<groupId>org.hibernate.ogm</groupId>
-			<artifactId>hibernate-ogm-neo4j</artifactId>
-			<version>${hibernate.version}</version>
-		</dependency>
-		<!-- Narayana JTA -->  
-		<dependency>
-			<groupId>org.jboss.narayana.jta</groupId>
-			<artifactId>narayana-jta</artifactId>
-			<version>${narayana-jta.version}</version>
-		</dependency>
-		<!-- Testing -->
-		<dependency>
-			<groupId>junit</groupId>
-			<artifactId>junit</artifactId>
-			<version>${junit.version}</version>
-			<scope>test</scope>
-		</dependency>
-		<dependency>
-			<groupId>org.easytesting</groupId>
-			<artifactId>fest-assert</artifactId>
-			<version>${fest-assert.version}</version>
-			<scope>test</scope>
-		</dependency>
+        <!-- MongoDB -->
+        <dependency>
+            <groupId>org.hibernate.ogm</groupId>
+            <artifactId>hibernate-ogm-mongodb</artifactId>
+            <version>${hibernate.version}</version>
+        </dependency>
+        <!-- Neo4j -->
+        <dependency>
+            <groupId>org.hibernate.ogm</groupId>
+            <artifactId>hibernate-ogm-neo4j</artifactId>
+            <version>${hibernate.version}</version>
+        </dependency>
+        <!-- Narayana JTA -->
+        <dependency>
+            <groupId>org.jboss.narayana.jta</groupId>
+            <artifactId>narayana-jta</artifactId>
+            <version>${narayana-jta.version}</version>
+        </dependency>
+        <!-- Testing -->
+        <dependency>
+            <groupId>junit</groupId>
+            <artifactId>junit</artifactId>
+            <version>${junit.version}</version>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.easytesting</groupId>
+            <artifactId>fest-assert</artifactId>
+            <version>${fest-assert.version}</version>
+            <scope>test</scope>
+        </dependency>
     </dependencies>
 
     <build>
@@ -63,4 +62,5 @@
         <fest-assert.version>1.4</fest-assert.version>
         <narayana-jta.version>5.5.23.Final</narayana-jta.version>
     </properties>
+    
 </project>
\ No newline at end of file
diff --git a/persistence-modules/hibernate5-2/pom.xml b/persistence-modules/hibernate5-2/pom.xml
index ef091c331e..516ab83997 100644
--- a/persistence-modules/hibernate5-2/pom.xml
+++ b/persistence-modules/hibernate5-2/pom.xml
@@ -2,7 +2,6 @@
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
     xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung</groupId>
     <artifactId>hibernate5-2</artifactId>
     <version>0.1-SNAPSHOT</version>
     <name>hibernate5-2</name>
diff --git a/persistence-modules/hibernate5/pom.xml b/persistence-modules/hibernate5/pom.xml
index bf4b2d27ec..ec06136f9c 100644
--- a/persistence-modules/hibernate5/pom.xml
+++ b/persistence-modules/hibernate5/pom.xml
@@ -3,7 +3,6 @@
          xmlns="http://maven.apache.org/POM/4.0.0"
          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung</groupId>
     <artifactId>hibernate5</artifactId>
     <version>0.0.1-SNAPSHOT</version>
     <name>hibernate5</name>
@@ -104,7 +103,7 @@
             </resource>
         </resources>
     </build>
-    
+
     <repositories>
         <repository>
             <id>geodb-repo</id>
diff --git a/persistence-modules/influxdb/pom.xml b/persistence-modules/influxdb/pom.xml
index a8ecaadd62..7531ad8217 100644
--- a/persistence-modules/influxdb/pom.xml
+++ b/persistence-modules/influxdb/pom.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>influxdb</artifactId>
     <version>0.1-SNAPSHOT</version>
diff --git a/persistence-modules/java-cassandra/pom.xml b/persistence-modules/java-cassandra/pom.xml
index 3f8367d130..6628a393fa 100644
--- a/persistence-modules/java-cassandra/pom.xml
+++ b/persistence-modules/java-cassandra/pom.xml
@@ -1,7 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
     xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung</groupId>
     <artifactId>java-cassandra</artifactId>
     <version>1.0.0-SNAPSHOT</version>
     <name>java-cassandra</name>
diff --git a/persistence-modules/java-cockroachdb/pom.xml b/persistence-modules/java-cockroachdb/pom.xml
index 2738ef85ff..750cbfce4c 100644
--- a/persistence-modules/java-cockroachdb/pom.xml
+++ b/persistence-modules/java-cockroachdb/pom.xml
@@ -1,15 +1,14 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung</groupId>
     <artifactId>java-cockroachdb</artifactId>
     <version>1.0-SNAPSHOT</version>
     <name>java-cockroachdb</name>
 
     <parent>
-        <artifactId>parent-modules</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-modules</artifactId>
         <version>1.0.0-SNAPSHOT</version>
         <relativePath>../../</relativePath>
     </parent>
diff --git a/persistence-modules/java-jdbi/pom.xml b/persistence-modules/java-jdbi/pom.xml
index dfb31b26e8..0d978dc164 100644
--- a/persistence-modules/java-jdbi/pom.xml
+++ b/persistence-modules/java-jdbi/pom.xml
@@ -1,14 +1,14 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>java-jdbi</artifactId>
     <version>1.0-SNAPSHOT</version>
-	<name>java-jdbi</name>
+    <name>java-jdbi</name>
 
     <parent>
-        <artifactId>parent-modules</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-modules</artifactId>
         <version>1.0.0-SNAPSHOT</version>
         <relativePath>../../</relativePath>
     </parent>
diff --git a/persistence-modules/java-jpa-2/pom.xml b/persistence-modules/java-jpa-2/pom.xml
index 2488c5ccdf..cc9e69fcaa 100644
--- a/persistence-modules/java-jpa-2/pom.xml
+++ b/persistence-modules/java-jpa-2/pom.xml
@@ -1,5 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>java-jpa-2</artifactId>
     <name>java-jpa-2</name>
diff --git a/persistence-modules/java-jpa/pom.xml b/persistence-modules/java-jpa/pom.xml
index 7ce8262ba5..a979cf7e65 100644
--- a/persistence-modules/java-jpa/pom.xml
+++ b/persistence-modules/java-jpa/pom.xml
@@ -7,8 +7,8 @@
     <name>java-jpa</name>
 
     <parent>
-        <artifactId>parent-modules</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-modules</artifactId>
         <version>1.0.0-SNAPSHOT</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
@@ -19,11 +19,11 @@
             <artifactId>hibernate-core</artifactId>
             <version>${hibernate.version}</version>
         </dependency>
-		<dependency>
-			<groupId>org.hibernate</groupId>
-			<artifactId>hibernate-jpamodelgen</artifactId>
-			<version>${hibernate.version}</version>
-		</dependency>
+        <dependency>
+            <groupId>org.hibernate</groupId>
+            <artifactId>hibernate-jpamodelgen</artifactId>
+            <version>${hibernate.version}</version>
+        </dependency>
         <dependency>
             <groupId>com.h2database</groupId>
             <artifactId>h2</artifactId>
@@ -52,8 +52,8 @@
         </dependency>
     </dependencies>
 
-	<build>
-		<plugins>
+    <build>
+        <plugins>
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-compiler-plugin</artifactId>
@@ -62,48 +62,48 @@
                     <compilerArgument>-proc:none</compilerArgument>
                 </configuration>
             </plugin>
-			<plugin>
-				<groupId>org.bsc.maven</groupId>
-				<artifactId>maven-processor-plugin</artifactId>
-				<version>${maven-processor-plugin.version}</version>
-				<executions>
-					<execution>
-						<id>process</id>
-						<goals>
-							<goal>process</goal>
-						</goals>
-						<phase>generate-sources</phase>
-						<configuration>
-							<outputDirectory>target/metamodel</outputDirectory>
-							<processors>
-								<processor>org.hibernate.jpamodelgen.JPAMetaModelEntityProcessor</processor>
-							</processors>
-						</configuration>
-					</execution>
-				</executions>
-			</plugin>
+            <plugin>
+                <groupId>org.bsc.maven</groupId>
+                <artifactId>maven-processor-plugin</artifactId>
+                <version>${maven-processor-plugin.version}</version>
+                <executions>
+                    <execution>
+                        <id>process</id>
+                        <goals>
+                            <goal>process</goal>
+                        </goals>
+                        <phase>generate-sources</phase>
+                        <configuration>
+                            <outputDirectory>target/metamodel</outputDirectory>
+                            <processors>
+                                <processor>org.hibernate.jpamodelgen.JPAMetaModelEntityProcessor</processor>
+                            </processors>
+                        </configuration>
+                    </execution>
+                </executions>
+            </plugin>
 
-			<plugin>
-				<groupId>org.codehaus.mojo</groupId>
-				<artifactId>build-helper-maven-plugin</artifactId>
-				<version>${build-helper-maven-plugin.version}</version>
-				<executions>
-					<execution>
-						<id>add-source</id>
-						<phase>generate-sources</phase>
-						<goals>
-							<goal>add-source</goal>
-						</goals>
-						<configuration>
-							<sources>
-								<source>target/metamodel</source>
-							</sources>
-						</configuration>
-					</execution>
-				</executions>
-			</plugin>
-		</plugins>
-	</build>
+            <plugin>
+                <groupId>org.codehaus.mojo</groupId>
+                <artifactId>build-helper-maven-plugin</artifactId>
+                <version>${build-helper-maven-plugin.version}</version>
+                <executions>
+                    <execution>
+                        <id>add-source</id>
+                        <phase>generate-sources</phase>
+                        <goals>
+                            <goal>add-source</goal>
+                        </goals>
+                        <configuration>
+                            <sources>
+                                <source>target/metamodel</source>
+                            </sources>
+                        </configuration>
+                    </execution>
+                </executions>
+            </plugin>
+        </plugins>
+    </build>
 
     <properties>
         <hibernate.version>5.4.0.Final</hibernate.version>
diff --git a/persistence-modules/java-mongodb/pom.xml b/persistence-modules/java-mongodb/pom.xml
index 35e59e60c6..1e59bd9064 100644
--- a/persistence-modules/java-mongodb/pom.xml
+++ b/persistence-modules/java-mongodb/pom.xml
@@ -1,49 +1,45 @@
-<?xml version="1.0"?>
-<project
-	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"
-	xmlns="http://maven.apache.org/POM/4.0.0"
-	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
-	<modelVersion>4.0.0</modelVersion>
-	<groupId>com.baeldung</groupId>
-	<artifactId>java-mongodb</artifactId>
-	<version>1.0-SNAPSHOT</version>
-	<name>java-mongodb</name>
+<?xml version="1.0" encoding="UTF-8"?>
+<project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"
+        xmlns="http://maven.apache.org/POM/4.0.0"
+        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
+    <modelVersion>4.0.0</modelVersion>
+    <artifactId>java-mongodb</artifactId>
+    <version>1.0-SNAPSHOT</version>
+    <name>java-mongodb</name>
 
-	<parent>
-		<groupId>com.baeldung</groupId>
-		<artifactId>parent-modules</artifactId>
-		<version>1.0.0-SNAPSHOT</version>
-		<relativePath>../../</relativePath>
-	</parent>
+    <parent>
+        <groupId>com.baeldung</groupId>
+        <artifactId>parent-modules</artifactId>
+        <version>1.0.0-SNAPSHOT</version>
+        <relativePath>../../</relativePath>
+    </parent>
 
-	<dependencies>
+    <dependencies>
+        <dependency>
+            <groupId>de.flapdoodle.embedmongo</groupId>
+            <artifactId>de.flapdoodle.embedmongo</artifactId>
+            <version>${flapdoodle.version}</version>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.mongodb</groupId>
+            <artifactId>mongo-java-driver</artifactId>
+            <version>${mongo.version}</version>
+        </dependency>
 
-		<dependency>
-			<groupId>de.flapdoodle.embedmongo</groupId>
-			<artifactId>de.flapdoodle.embedmongo</artifactId>
-			<version>${flapdoodle.version}</version>
-			<scope>test</scope>
-		</dependency>
-		<dependency>
-			<groupId>org.mongodb</groupId>
-			<artifactId>mongo-java-driver</artifactId>
-			<version>${mongo.version}</version>
-		</dependency>
+        <dependency>
+            <groupId>dev.morphia.morphia</groupId>
+            <artifactId>core</artifactId>
+            <version>${morphia.version}</version>
+        </dependency>
+    </dependencies>
 
-		<dependency>
-			<groupId>dev.morphia.morphia</groupId>
-			<artifactId>core</artifactId>
-			<version>${morphia.version}</version>
-		</dependency>
-
-	</dependencies>
-
-	<properties>
-		<maven.compiler.source>1.8</maven.compiler.source>
-		<maven.compiler.target>1.8</maven.compiler.target>
-		<mongo.version>3.10.1</mongo.version>
-		<flapdoodle.version>1.11</flapdoodle.version>
-		<morphia.version>1.5.3</morphia.version>
-	</properties>
+    <properties>
+        <maven.compiler.source>1.8</maven.compiler.source>
+        <maven.compiler.target>1.8</maven.compiler.target>
+        <mongo.version>3.10.1</mongo.version>
+        <flapdoodle.version>1.11</flapdoodle.version>
+        <morphia.version>1.5.3</morphia.version>
+    </properties>
 
 </project>
diff --git a/persistence-modules/jnosql/jnosql-artemis/pom.xml b/persistence-modules/jnosql/jnosql-artemis/pom.xml
index 09d6af13df..8570d1072f 100644
--- a/persistence-modules/jnosql/jnosql-artemis/pom.xml
+++ b/persistence-modules/jnosql/jnosql-artemis/pom.xml
@@ -4,7 +4,7 @@
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>jnosql-artemis</artifactId>
-	<name>jnosql-artemis</name>
+    <name>jnosql-artemis</name>
     <packaging>war</packaging>
 
     <parent>
@@ -12,7 +12,7 @@
         <artifactId>jnosql</artifactId>
         <version>1.0-SNAPSHOT</version>
     </parent>
-	
+
     <dependencies>
         <dependency>
             <groupId>javax</groupId>
diff --git a/persistence-modules/jnosql/jnosql-diana/pom.xml b/persistence-modules/jnosql/jnosql-diana/pom.xml
index a4951761d8..22e066d36d 100644
--- a/persistence-modules/jnosql/jnosql-diana/pom.xml
+++ b/persistence-modules/jnosql/jnosql-diana/pom.xml
@@ -4,8 +4,8 @@
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>jnosql-diana</artifactId>
-	<name>jnosql-diana</name>
-	
+    <name>jnosql-diana</name>
+
     <parent>
         <groupId>com.baeldung.jnosql</groupId>
         <artifactId>jnosql</artifactId>
@@ -13,7 +13,6 @@
     </parent>
 
     <dependencies>
-
         <!--NoSQL Document oriented-->
         <dependency>
             <groupId>org.jnosql.diana</groupId>
diff --git a/persistence-modules/jnosql/pom.xml b/persistence-modules/jnosql/pom.xml
index 8773456285..b96722de18 100644
--- a/persistence-modules/jnosql/pom.xml
+++ b/persistence-modules/jnosql/pom.xml
@@ -6,7 +6,7 @@
     <groupId>com.baeldung.jnosql</groupId>
     <artifactId>jnosql</artifactId>
     <version>1.0-SNAPSHOT</version>
-	<name>jnosql</name>
+    <name>jnosql</name>
     <packaging>pom</packaging>
 
     <parent>
@@ -19,11 +19,12 @@
     <modules>
         <module>jnosql-artemis</module>
         <module>jnosql-diana</module>
-   </modules>
+    </modules>
 
     <properties>
         <maven.compiler.source>1.8</maven.compiler.source>
         <maven.compiler.target>1.8</maven.compiler.target>
         <jnosql.version>0.0.5</jnosql.version>
     </properties>
+
 </project>
diff --git a/persistence-modules/jpa-hibernate-cascade-type/pom.xml b/persistence-modules/jpa-hibernate-cascade-type/pom.xml
index bc6307efb0..a545723746 100644
--- a/persistence-modules/jpa-hibernate-cascade-type/pom.xml
+++ b/persistence-modules/jpa-hibernate-cascade-type/pom.xml
@@ -2,8 +2,8 @@
 <project xmlns="http://maven.apache.org/POM/4.0.0"
          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
-    <artifactId>jpa-hibernate-cascade-type</artifactId>
     <modelVersion>4.0.0</modelVersion>
+    <artifactId>jpa-hibernate-cascade-type</artifactId>
     <version>1.0.0-SNAPSHOT</version>
 
     <parent>
diff --git a/persistence-modules/liquibase/pom.xml b/persistence-modules/liquibase/pom.xml
index b06d38e6a0..39e86b5186 100644
--- a/persistence-modules/liquibase/pom.xml
+++ b/persistence-modules/liquibase/pom.xml
@@ -1,13 +1,13 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>liquibase</artifactId>
-	<name>liquibase</name>
+    <name>liquibase</name>
 
     <parent>
-        <artifactId>parent-modules</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-modules</artifactId>
         <version>1.0.0-SNAPSHOT</version>
         <relativePath>../../</relativePath>
     </parent>
diff --git a/persistence-modules/orientdb/pom.xml b/persistence-modules/orientdb/pom.xml
index a8ac3fb789..7b0bef7fc5 100644
--- a/persistence-modules/orientdb/pom.xml
+++ b/persistence-modules/orientdb/pom.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>orientdb</artifactId>
     <version>0.0.1-SNAPSHOT</version>
@@ -36,8 +36,7 @@
             <artifactId>blueprints-core</artifactId>
             <version>${blueprints.version}</version>
         </dependency>
-
-   </dependencies>
+    </dependencies>
 
     <properties>
         <orientdb.version>2.2.31</orientdb.version>
diff --git a/persistence-modules/persistence-libraries/pom.xml b/persistence-modules/persistence-libraries/pom.xml
index 273db34ec4..74ff262637 100644
--- a/persistence-modules/persistence-libraries/pom.xml
+++ b/persistence-modules/persistence-libraries/pom.xml
@@ -1,14 +1,14 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>persistence-libraries</artifactId>
     <version>1.0-SNAPSHOT</version>
     <name>java-sql2o</name>
 
     <parent>
-        <artifactId>persistence-modules</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>persistence-modules</artifactId>
         <version>1.0.0-SNAPSHOT</version>
         <relativePath>..</relativePath>
     </parent>
diff --git a/persistence-modules/pom.xml b/persistence-modules/pom.xml
index ce1f0d2163..c0f7c07b70 100644
--- a/persistence-modules/pom.xml
+++ b/persistence-modules/pom.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://maven.apache.org/POM/4.0.0"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>persistence-modules</artifactId>
     <name>persistence-modules</name>
@@ -38,9 +38,9 @@
         <module>orientdb</module>
         <module>persistence-libraries</module>
         <module>querydsl</module>
-		<module>r2dbc</module>
+        <module>r2dbc</module>
         <module>redis</module>
-		<!-- <module>sirix</module> --> <!-- We haven't upgraded to java 11. Fixing in BAEL-10841 -->
+        <!-- <module>sirix</module> --> <!-- We haven't upgraded to java 11. Fixing in BAEL-10841 -->
         <module>solr</module>
         <module>spring-boot-jdbi</module>
         <module>spring-boot-mysql</module>
@@ -68,8 +68,8 @@
         <module>spring-hibernate-5</module> <!-- long running -->
         <module>spring-hibernate4</module>
         <module>spring-jpa</module>
-		<!-- <module>spring-mybatis</module> --> <!-- needs fixing in BAEL-9021 -->
+        <!-- <module>spring-mybatis</module> --> <!-- needs fixing in BAEL-9021 -->
         <module>spring-persistence-simple</module>
     </modules>
-    
+
 </project>
diff --git a/persistence-modules/querydsl/pom.xml b/persistence-modules/querydsl/pom.xml
index 4d4347e909..690e65d737 100644
--- a/persistence-modules/querydsl/pom.xml
+++ b/persistence-modules/querydsl/pom.xml
@@ -1,8 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung</groupId>
     <artifactId>querydsl</artifactId>
     <version>0.1-SNAPSHOT</version>
     <name>querydsl</name>
@@ -18,7 +17,6 @@
 
     <dependencies>
         <!-- QueryDSL -->
-
         <dependency>
             <groupId>com.querydsl</groupId>
             <artifactId>querydsl-jpa</artifactId>
diff --git a/persistence-modules/r2dbc/pom.xml b/persistence-modules/r2dbc/pom.xml
index 4256da659e..3b2a57401c 100644
--- a/persistence-modules/r2dbc/pom.xml
+++ b/persistence-modules/r2dbc/pom.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0"
-    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <groupId>org.baeldung.examples.r2dbc</groupId>
     <artifactId>r2dbc-example</artifactId>
@@ -13,7 +13,7 @@
         <groupId>org.springframework.boot</groupId>
         <artifactId>spring-boot-starter-parent</artifactId>
         <version>2.1.6.RELEASE</version>
-        <relativePath /> <!-- lookup parent from repository -->
+        <relativePath/> <!-- lookup parent from repository -->
     </parent>
 
     <dependencies>
diff --git a/persistence-modules/redis/pom.xml b/persistence-modules/redis/pom.xml
index e5a39d6eac..c4a928bb4a 100644
--- a/persistence-modules/redis/pom.xml
+++ b/persistence-modules/redis/pom.xml
@@ -1,8 +1,7 @@
 <?xml version="1.0"?>
 <project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd" xmlns="http://maven.apache.org/POM/4.0.0"
-    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung</groupId>
     <artifactId>redis</artifactId>
     <version>0.1-SNAPSHOT</version>
     <name>redis</name>
@@ -44,4 +43,5 @@
         <redisson.version>3.3.0</redisson.version>
         <lettuce-core.version>5.0.1.RELEASE</lettuce-core.version>
     </properties>
+
 </project>
diff --git a/persistence-modules/sirix/pom.xml b/persistence-modules/sirix/pom.xml
index 8de961120f..ccaec79775 100644
--- a/persistence-modules/sirix/pom.xml
+++ b/persistence-modules/sirix/pom.xml
@@ -1,53 +1,55 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0"
-	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
-	<modelVersion>4.0.0</modelVersion>
-	<groupId>io.sirix</groupId>
-	<artifactId>core-api-tutorial</artifactId>
-	<packaging>jar</packaging>
-	<version>1.0-SNAPSHOT</version>
-	<name>core-api-tutorial</name>
-	<url>http://maven.apache.org</url>
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <groupId>io.sirix</groupId>
+    <artifactId>core-api-tutorial</artifactId>
+    <version>1.0-SNAPSHOT</version>
+    <name>core-api-tutorial</name>
+    <packaging>jar</packaging>
+    <url>http://maven.apache.org</url>
 
-	<parent>
-		<groupId>com.baeldung</groupId>
-		<artifactId>parent-java</artifactId>
-		<version>0.0.1-SNAPSHOT</version>
-		<relativePath>../../parent-java</relativePath>
-	</parent>
+    <parent>
+        <groupId>com.baeldung</groupId>
+        <artifactId>parent-java</artifactId>
+        <version>0.0.1-SNAPSHOT</version>
+        <relativePath>../../parent-java</relativePath>
+    </parent>
 
-	<dependencies>
-		<dependency>
-			<groupId>io.sirix</groupId>
-			<artifactId>sirix-core</artifactId>
-			<version>${sirix-core.version}</version>
-		</dependency>
-	</dependencies>
+    <dependencies>
+        <dependency>
+            <groupId>io.sirix</groupId>
+            <artifactId>sirix-core</artifactId>
+            <version>${sirix-core.version}</version>
+        </dependency>
+    </dependencies>
 
-	<build>
-		<plugins>
-			<plugin>
-				<groupId>org.apache.maven.plugins</groupId>
-				<artifactId>maven-compiler-plugin</artifactId>
-				<version>3.8.0</version>
-				<configuration>
-					<release>${maven.release.version}</release>
-					<encoding>${project.build.sourceEncoding}</encoding>
-				</configuration>
-				<dependencies>
-					<dependency>
-						<groupId>org.ow2.asm</groupId>
-						<artifactId>asm</artifactId>
-						<version>6.1</version> <!-- Use newer version of ASM -->
-					</dependency>
-				</dependencies>
-			</plugin>
-		</plugins>
-	</build>
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-compiler-plugin</artifactId>
+                <version>3.8.0</version>
+                <configuration>
+                    <release>${maven.release.version}</release>
+                    <encoding>${project.build.sourceEncoding}</encoding>
+                </configuration>
+                <dependencies>
+                    <dependency>
+                        <groupId>org.ow2.asm</groupId>
+                        <artifactId>asm</artifactId>
+                        <version>6.1</version> <!-- Use newer version of ASM -->
+                    </dependency>
+                </dependencies>
+            </plugin>
+        </plugins>
+    </build>
+
+    <properties>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <maven.release.version>11</maven.release.version>
+        <sirix-core.version>0.9.3</sirix-core.version>
+    </properties>
 
-	<properties>
-		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-		<maven.release.version>11</maven.release.version>
-		<sirix-core.version>0.9.3</sirix-core.version>
-	</properties>
 </project>
diff --git a/persistence-modules/solr/pom.xml b/persistence-modules/solr/pom.xml
index 1c14c06315..5902d42a82 100644
--- a/persistence-modules/solr/pom.xml
+++ b/persistence-modules/solr/pom.xml
@@ -1,7 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
     xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung</groupId>
     <artifactId>solr</artifactId>
     <version>0.0.1-SNAPSHOT</version>
     <name>solr</name>
diff --git a/persistence-modules/spring-boot-jdbi/pom.xml b/persistence-modules/spring-boot-jdbi/pom.xml
index e8904492ac..db36185acd 100644
--- a/persistence-modules/spring-boot-jdbi/pom.xml
+++ b/persistence-modules/spring-boot-jdbi/pom.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0"
-    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <groupId>com.baeldung.boot.jdbi</groupId>
     <artifactId>spring-boot-jdbi</artifactId>
@@ -10,8 +10,8 @@
     <description>Sample SpringBoot JDBI Project</description>
 
     <parent>
-        <artifactId>parent-modules</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-modules</artifactId>
         <version>1.0.0-SNAPSHOT</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
@@ -41,12 +41,12 @@
         </dependencies>
     </dependencyManagement>
 
-    <dependencies>        
+    <dependencies>
         <dependency>
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-jdbc</artifactId>
         </dependency>
-        
+
         <dependency>
             <groupId>org.jdbi</groupId>
             <artifactId>jdbi3-spring4</artifactId>
diff --git a/persistence-modules/spring-boot-mysql/pom.xml b/persistence-modules/spring-boot-mysql/pom.xml
index 29374ec116..e4456b2eaf 100644
--- a/persistence-modules/spring-boot-mysql/pom.xml
+++ b/persistence-modules/spring-boot-mysql/pom.xml
@@ -1,14 +1,14 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd"
-    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>spring-boot-mysql</artifactId>
     <version>0.1.0</version>
     <name>spring-boot-mysql</name>
 
     <parent>
-        <artifactId>parent-boot-2</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-2</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../../parent-boot-2</relativePath>
     </parent>
@@ -38,16 +38,13 @@
     </dependencies>
 
     <build>
-        <finalName>spring-boot-mysql-timezone</finalName>
+        <finalName>spring-boot-mysql</finalName>
         <resources>
             <resource>
                 <directory>src/main/resources</directory>
                 <filtering>true</filtering>
             </resource>
         </resources>
-        <plugins>
-
-        </plugins>
     </build>
 
     <properties>
diff --git a/persistence-modules/spring-boot-persistence-h2/pom.xml b/persistence-modules/spring-boot-persistence-h2/pom.xml
index d1fd5b0170..9a0a72ba23 100644
--- a/persistence-modules/spring-boot-persistence-h2/pom.xml
+++ b/persistence-modules/spring-boot-persistence-h2/pom.xml
@@ -6,13 +6,13 @@
     <groupId>com.baeldung.h2db</groupId>
     <artifactId>spring-boot-persistence-h2</artifactId>
     <version>0.0.1-SNAPSHOT</version>
-	<name>spring-boot-persistence-h2</name>
+    <name>spring-boot-persistence-h2</name>
     <packaging>jar</packaging>
     <description>Demo Spring Boot applications that starts H2 in memory database</description>
 
     <parent>
-        <artifactId>parent-boot-2</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-2</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../../parent-boot-2</relativePath>
     </parent>
@@ -49,5 +49,5 @@
         <start-class>com.baeldung.h2db.demo.server.SpringBootApp</start-class>
         <spring-boot.version>2.0.4.RELEASE</spring-boot.version>
     </properties>
-    	
+
 </project>
diff --git a/persistence-modules/spring-boot-persistence-mongodb/pom.xml b/persistence-modules/spring-boot-persistence-mongodb/pom.xml
index dae5efa6d0..da48f066f9 100644
--- a/persistence-modules/spring-boot-persistence-mongodb/pom.xml
+++ b/persistence-modules/spring-boot-persistence-mongodb/pom.xml
@@ -9,8 +9,8 @@
     <description>This is simple boot application for Spring boot persistence mongodb test</description>
 
     <parent>
-        <artifactId>parent-boot-2</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-2</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../../parent-boot-2</relativePath>
     </parent>
@@ -23,7 +23,7 @@
         <dependency>
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-thymeleaf</artifactId>
-        </dependency>        
+        </dependency>
         <!-- MongoDB -->
         <dependency>
             <groupId>org.springframework.boot</groupId>
@@ -61,7 +61,7 @@
     </dependencies>
 
     <build>
-        <finalName>spring-boot-persistence</finalName>
+        <finalName>spring-boot-persistence-mongodb</finalName>
         <resources>
             <resource>
                 <directory>src/main/resources</directory>
@@ -110,5 +110,4 @@
         </profile>
     </profiles>
 
-
 </project>
diff --git a/persistence-modules/spring-boot-persistence/pom.xml b/persistence-modules/spring-boot-persistence/pom.xml
index 3ad925f16b..049e7225ac 100644
--- a/persistence-modules/spring-boot-persistence/pom.xml
+++ b/persistence-modules/spring-boot-persistence/pom.xml
@@ -1,14 +1,14 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd"
-    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>spring-boot-persistence</artifactId>
     <version>0.1.0</version>
     <name>spring-boot-persistence</name>
 
     <parent>
-        <artifactId>parent-boot-2</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-2</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../../parent-boot-2</relativePath>
     </parent>
diff --git a/persistence-modules/spring-data-cassandra-reactive/pom.xml b/persistence-modules/spring-data-cassandra-reactive/pom.xml
index 288f842201..a57ebbe703 100644
--- a/persistence-modules/spring-data-cassandra-reactive/pom.xml
+++ b/persistence-modules/spring-data-cassandra-reactive/pom.xml
@@ -3,7 +3,6 @@
          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung</groupId>
     <artifactId>spring-data-cassandra-reactive</artifactId>
     <version>0.0.1-SNAPSHOT</version>
     <name>spring-data-cassandra-reactive</name>
@@ -52,7 +51,6 @@
             <version>${cassandra-unit-spring.version}</version>
             <scope>test</scope>
         </dependency>
-        
     </dependencies>
 
     <properties>
diff --git a/persistence-modules/spring-data-cassandra/pom.xml b/persistence-modules/spring-data-cassandra/pom.xml
index 4f323a72d8..9ea39f3f55 100644
--- a/persistence-modules/spring-data-cassandra/pom.xml
+++ b/persistence-modules/spring-data-cassandra/pom.xml
@@ -1,7 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung</groupId>
     <artifactId>spring-data-cassandra</artifactId>
     <version>0.0.1-SNAPSHOT</version>
     <name>spring-data-cassandra</name>
diff --git a/persistence-modules/spring-data-couchbase-2/pom.xml b/persistence-modules/spring-data-couchbase-2/pom.xml
index f57d9aaa62..56456fc04b 100644
--- a/persistence-modules/spring-data-couchbase-2/pom.xml
+++ b/persistence-modules/spring-data-couchbase-2/pom.xml
@@ -1,6 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0"
-    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <groupId>org.baeldung</groupId>
     <artifactId>spring-data-couchbase-2</artifactId>
@@ -16,7 +17,6 @@
     </parent>
 
     <dependencies>
-
         <!-- Spring Context and Couchbase Peristence -->
         <dependency>
             <groupId>org.springframework</groupId>
diff --git a/persistence-modules/spring-data-dynamodb/pom.xml b/persistence-modules/spring-data-dynamodb/pom.xml
index e8bf9b8c1e..7b936817d1 100644
--- a/persistence-modules/spring-data-dynamodb/pom.xml
+++ b/persistence-modules/spring-data-dynamodb/pom.xml
@@ -1,14 +1,15 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>spring-data-dynamodb</artifactId>
-    <packaging>jar</packaging>
     <name>spring-data-dynamodb</name>
+    <packaging>jar</packaging>
     <description>This is simple boot application for Spring boot dynamodb test</description>
 
     <parent>
-        <artifactId>parent-boot-1</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-1</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../../parent-boot-1</relativePath>
     </parent>
@@ -134,11 +135,10 @@
             <type>so</type>
             <scope>test</scope>
         </dependency>
-
     </dependencies>
 
     <build>
-        <finalName>spring-boot</finalName>
+        <finalName>spring-data-dynamodb</finalName>
         <resources>
             <resource>
                 <directory>src/main/resources</directory>
diff --git a/persistence-modules/spring-data-eclipselink/pom.xml b/persistence-modules/spring-data-eclipselink/pom.xml
index 5ca827db7b..bb596d4a8a 100644
--- a/persistence-modules/spring-data-eclipselink/pom.xml
+++ b/persistence-modules/spring-data-eclipselink/pom.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>spring-data-eclipselink</artifactId>
     <name>spring-data-eclipselink</name>
diff --git a/persistence-modules/spring-data-elasticsearch/pom.xml b/persistence-modules/spring-data-elasticsearch/pom.xml
index 9495d56798..ccd2f94e59 100644
--- a/persistence-modules/spring-data-elasticsearch/pom.xml
+++ b/persistence-modules/spring-data-elasticsearch/pom.xml
@@ -1,7 +1,6 @@
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung</groupId>
     <artifactId>spring-data-elasticsearch</artifactId>
     <version>0.0.1-SNAPSHOT</version>
     <name>spring-data-elasticsearch</name>
@@ -20,13 +19,13 @@
             <artifactId>spring-core</artifactId>
             <version>${spring.version}</version>
         </dependency>
-        
+
         <dependency>
             <groupId>org.springframework</groupId>
             <artifactId>spring-context</artifactId>
             <version>${spring.version}</version>
         </dependency>
-                
+
         <dependency>
             <groupId>org.springframework.data</groupId>
             <artifactId>spring-data-elasticsearch</artifactId>
@@ -43,12 +42,12 @@
             <artifactId>fastjson</artifactId>
             <version>${fastjson.version}</version>
         </dependency>
-        
+
         <dependency>
-		    <groupId>org.locationtech.spatial4j</groupId>
-		    <artifactId>spatial4j</artifactId>
-		    <version>${spatial4j.version}</version>                        
-		</dependency>
+            <groupId>org.locationtech.spatial4j</groupId>
+            <artifactId>spatial4j</artifactId>
+            <version>${spatial4j.version}</version>
+        </dependency>
 
         <dependency>
             <groupId>com.vividsolutions</groupId>
@@ -61,26 +60,26 @@
                 </exclusion>
             </exclusions>
         </dependency>
-        
+
         <dependency>
             <groupId>org.apache.logging.log4j</groupId>
             <artifactId>log4j-core</artifactId>
             <version>${log4j.version}</version>
         </dependency>
-        
+
         <dependency>
             <groupId>org.elasticsearch.client</groupId>
             <artifactId>transport</artifactId>
             <version>${elasticsearch.version}</version>
         </dependency>
-        
+
         <dependency>
             <groupId>org.springframework</groupId>
             <artifactId>spring-test</artifactId>
             <version>${spring.version}</version>
             <scope>test</scope>
         </dependency>
-        
+
         <dependency>
             <groupId>net.java.dev.jna</groupId>
             <artifactId>jna</artifactId>
diff --git a/persistence-modules/spring-data-gemfire/pom.xml b/persistence-modules/spring-data-gemfire/pom.xml
index dbb869acf0..6bd689192c 100644
--- a/persistence-modules/spring-data-gemfire/pom.xml
+++ b/persistence-modules/spring-data-gemfire/pom.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>spring-data-gemfire</artifactId>
     <name>spring-data-gemfire</name>
diff --git a/persistence-modules/spring-data-geode/pom.xml b/persistence-modules/spring-data-geode/pom.xml
index abd3049755..2a9cbe35e9 100644
--- a/persistence-modules/spring-data-geode/pom.xml
+++ b/persistence-modules/spring-data-geode/pom.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>spring-data-geode</artifactId>
     <name>spring-data-geode</name>
@@ -42,7 +42,7 @@
             <artifactId>spring-geode-starter</artifactId>
             <version>${spring-geode-starter-version}</version>
         </dependency>
-        
+
         <dependency>
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-autoconfigure</artifactId>
@@ -85,7 +85,7 @@
     </build>
 
     <properties>
-    	<spring-boot-version>2.1.9.RELEASE</spring-boot-version>
+        <spring-boot-version>2.1.9.RELEASE</spring-boot-version>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <start-class>com.baeldung.springdatageode.app.ClientCacheApp</start-class>
         <spring-geode-starter-version>1.1.1.RELEASE</spring-geode-starter-version>
diff --git a/persistence-modules/spring-data-jpa-2/pom.xml b/persistence-modules/spring-data-jpa-2/pom.xml
index 3616b5ce18..838327de89 100644
--- a/persistence-modules/spring-data-jpa-2/pom.xml
+++ b/persistence-modules/spring-data-jpa-2/pom.xml
@@ -1,16 +1,14 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0"
-    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-
-    <groupId>com.baeldung</groupId>
     <artifactId>spring-data-jpa-2</artifactId>
     <name>spring-data-jpa-2</name>
 
     <parent>
-        <artifactId>parent-boot-2</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-2</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../../parent-boot-2</relativePath>
     </parent>
@@ -42,8 +40,9 @@
             <artifactId>spring-oxm</artifactId>
         </dependency>
     </dependencies>
-	
+
     <properties>
         <datasource-proxy.version>1.4.1</datasource-proxy.version>
     </properties>
+
 </project>
\ No newline at end of file
diff --git a/persistence-modules/spring-data-jpa-3/pom.xml b/persistence-modules/spring-data-jpa-3/pom.xml
index 351279f60e..8a949b3008 100644
--- a/persistence-modules/spring-data-jpa-3/pom.xml
+++ b/persistence-modules/spring-data-jpa-3/pom.xml
@@ -3,20 +3,18 @@
          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0
          http://maven.apache.org/xsd/maven-4.0.0.xsd">
-
     <modelVersion>4.0.0</modelVersion>
     <artifactId>spring-data-jpa-3</artifactId>
     <name>spring-data-jpa-3</name>
 
     <parent>
-        <artifactId>parent-boot-2</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-2</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../../parent-boot-2</relativePath>
     </parent>
 
     <dependencies>
-
         <!-- Prod Dependencies -->
         <dependency>
             <groupId>org.springframework.boot</groupId>
@@ -81,7 +79,7 @@
             <artifactId>junit-platform-launcher</artifactId>
             <scope>test</scope>
         </dependency>
-        
+
         <!-- Test containers only dependencies -->
         <dependency>
             <groupId>org.testcontainers</groupId>
@@ -100,4 +98,5 @@
         <testcontainers.version>1.12.2</testcontainers.version>
         <h2.version>1.4.200</h2.version>
     </properties>
+
 </project>
diff --git a/persistence-modules/spring-data-jpa-4/pom.xml b/persistence-modules/spring-data-jpa-4/pom.xml
index c74119c1f7..44b7c3c268 100644
--- a/persistence-modules/spring-data-jpa-4/pom.xml
+++ b/persistence-modules/spring-data-jpa-4/pom.xml
@@ -1,25 +1,23 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-
-    <groupId>com.baeldung</groupId>
     <artifactId>spring-data-jpa-4</artifactId>
     <name>spring-data-jpa-4</name>
 
     <parent>
-        <artifactId>parent-boot-2</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-2</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../../parent-boot-2</relativePath>
     </parent>
 
     <dependencies>
-    	<dependency>
+        <dependency>
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-web</artifactId>
         </dependency>
-    
+
         <dependency>
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-data-jpa</artifactId>
@@ -37,6 +35,4 @@
         </dependency>
     </dependencies>
 
-    <properties>
-    </properties>
 </project>
\ No newline at end of file
diff --git a/persistence-modules/spring-data-jpa/pom.xml b/persistence-modules/spring-data-jpa/pom.xml
index af92f331d1..27b8ce5eaf 100644
--- a/persistence-modules/spring-data-jpa/pom.xml
+++ b/persistence-modules/spring-data-jpa/pom.xml
@@ -3,13 +3,12 @@
          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-	<groupId>com.baeldung</groupId>
     <artifactId>spring-data-jpa</artifactId>
-	<name>spring-data-jpa</name>
-	
+    <name>spring-data-jpa</name>
+
     <parent>
-        <artifactId>parent-boot-2</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-2</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../../parent-boot-2</relativePath>
     </parent>
@@ -58,9 +57,9 @@
             <artifactId>spring-boot-starter-web</artifactId>
         </dependency>
         <dependency>
-        <groupId>org.springframework.boot</groupId>
-           <artifactId>spring-boot-starter-test</artifactId>
-           <scope>test</scope>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-test</artifactId>
+            <scope>test</scope>
         </dependency>
 
         <dependency>
@@ -68,7 +67,7 @@
             <artifactId>guava</artifactId>
             <version>${guava.version}</version>
         </dependency>
-        
+
         <!-- JUnit Jupiter dependencies -->
         <dependency>
             <groupId>org.junit.jupiter</groupId>
@@ -89,12 +88,12 @@
             <scope>test</scope>
         </dependency>
     </dependencies>
-    
+
     <properties>
-    	<start-class>com.baeldung.boot.Application</start-class>
-    	<testcontainers.postgresql.version>1.10.6</testcontainers.postgresql.version>
-    	<postgresql.version>42.2.5</postgresql.version>
-    	<guava.version>21.0</guava.version>
+        <start-class>com.baeldung.boot.Application</start-class>
+        <testcontainers.postgresql.version>1.10.6</testcontainers.postgresql.version>
+        <postgresql.version>42.2.5</postgresql.version>
+        <guava.version>21.0</guava.version>
     </properties>
 
 </project>
\ No newline at end of file
diff --git a/persistence-modules/spring-data-keyvalue/pom.xml b/persistence-modules/spring-data-keyvalue/pom.xml
index 1fee0a88d4..b28773c414 100644
--- a/persistence-modules/spring-data-keyvalue/pom.xml
+++ b/persistence-modules/spring-data-keyvalue/pom.xml
@@ -1,12 +1,12 @@
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>spring-data-keyvalue</artifactId>
-	<name>spring-data-keyvalue</name>
+    <name>spring-data-keyvalue</name>
 
     <parent>
-        <artifactId>parent-boot-2</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-2</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../../parent-boot-2</relativePath>
     </parent>
diff --git a/persistence-modules/spring-data-mongodb/pom.xml b/persistence-modules/spring-data-mongodb/pom.xml
index 33ad3a5267..3f7c1cbcb9 100644
--- a/persistence-modules/spring-data-mongodb/pom.xml
+++ b/persistence-modules/spring-data-mongodb/pom.xml
@@ -1,3 +1,4 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
     xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
@@ -100,7 +101,6 @@
         <mysema.maven.version>1.1.3</mysema.maven.version>
         <mongodb-reactivestreams.version>1.9.2</mongodb-reactivestreams.version>
         <projectreactor.version>3.2.0.RELEASE</projectreactor.version>
-
     </properties>
 
 </project>
diff --git a/persistence-modules/spring-data-neo4j/pom.xml b/persistence-modules/spring-data-neo4j/pom.xml
index 1e5d51ddf2..625e2c5fc1 100644
--- a/persistence-modules/spring-data-neo4j/pom.xml
+++ b/persistence-modules/spring-data-neo4j/pom.xml
@@ -1,10 +1,11 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>spring-data-neo4j</artifactId>
     <version>1.0</version>
-	<name>spring-data-neo4j</name>
-	
+    <name>spring-data-neo4j</name>
+
     <parent>
         <groupId>com.baeldung</groupId>
         <artifactId>parent-modules</artifactId>
diff --git a/persistence-modules/spring-data-redis/pom.xml b/persistence-modules/spring-data-redis/pom.xml
index cd8c729844..a304108fee 100644
--- a/persistence-modules/spring-data-redis/pom.xml
+++ b/persistence-modules/spring-data-redis/pom.xml
@@ -1,15 +1,15 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
     xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung</groupId>
     <artifactId>spring-data-redis</artifactId>
     <version>1.0</version>
 	<name>spring-data-redis</name>
     <packaging>jar</packaging>
 
     <parent>
-        <artifactId>parent-boot-2</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-2</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../../parent-boot-2</relativePath>
     </parent>
diff --git a/persistence-modules/spring-data-solr/pom.xml b/persistence-modules/spring-data-solr/pom.xml
index 82539b0ca8..1a17a2e321 100644
--- a/persistence-modules/spring-data-solr/pom.xml
+++ b/persistence-modules/spring-data-solr/pom.xml
@@ -1,7 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
     xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung</groupId>
     <artifactId>spring-data-solr</artifactId>
     <version>0.0.1-SNAPSHOT</version>
     <name>spring-data-solr</name>
diff --git a/persistence-modules/spring-hibernate-3/pom.xml b/persistence-modules/spring-hibernate-3/pom.xml
index 4349492370..e677776a95 100644
--- a/persistence-modules/spring-hibernate-3/pom.xml
+++ b/persistence-modules/spring-hibernate-3/pom.xml
@@ -1,7 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
     xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung</groupId>
     <artifactId>spring-hibernate-3</artifactId>
     <version>0.1-SNAPSHOT</version>
     <name>spring-hibernate-3</name>
diff --git a/persistence-modules/spring-hibernate-5/pom.xml b/persistence-modules/spring-hibernate-5/pom.xml
index 694ab570a5..546dcb1ce0 100644
--- a/persistence-modules/spring-hibernate-5/pom.xml
+++ b/persistence-modules/spring-hibernate-5/pom.xml
@@ -1,7 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung</groupId>
     <artifactId>spring-hibernate-5</artifactId>
     <version>0.1-SNAPSHOT</version>
     <name>spring-hibernate-5</name>
@@ -151,7 +151,6 @@
 
         <!-- util -->
         <guava.version>21.0</guava.version>
-
     </properties>
 
 </project>
diff --git a/persistence-modules/spring-hibernate4/pom.xml b/persistence-modules/spring-hibernate4/pom.xml
index c22342a34a..41c7fdb098 100644
--- a/persistence-modules/spring-hibernate4/pom.xml
+++ b/persistence-modules/spring-hibernate4/pom.xml
@@ -1,20 +1,19 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
     xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung</groupId>
     <artifactId>spring-hibernate4</artifactId>
     <version>0.1-SNAPSHOT</version>
     <name>spring-hibernate4</name>
 
     <parent>
-        <artifactId>parent-spring-4</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-spring-4</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../../parent-spring-4</relativePath>
     </parent>
 
     <dependencies>
-
         <!-- Spring -->
 
         <dependency>
diff --git a/persistence-modules/spring-jpa/pom.xml b/persistence-modules/spring-jpa/pom.xml
index 792f3918b6..4972a20cf6 100644
--- a/persistence-modules/spring-jpa/pom.xml
+++ b/persistence-modules/spring-jpa/pom.xml
@@ -1,5 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>spring-jpa</artifactId>
     <version>0.1-SNAPSHOT</version>
diff --git a/persistence-modules/spring-mybatis/pom.xml b/persistence-modules/spring-mybatis/pom.xml
index 9946c937c8..40d4d915ab 100644
--- a/persistence-modules/spring-mybatis/pom.xml
+++ b/persistence-modules/spring-mybatis/pom.xml
@@ -1,7 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://maven.apache.org/POM/4.0.0"
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung</groupId>
     <artifactId>spring-mybatis</artifactId>
     <version>0.1-SNAPSHOT</version>
     <name>spring-mybatis</name>
@@ -108,7 +108,6 @@
 
         <!-- testing -->
         <assertj-core.version>3.8.0</assertj-core.version>
-
     </properties>
 
 </project>
diff --git a/persistence-modules/spring-persistence-simple/pom.xml b/persistence-modules/spring-persistence-simple/pom.xml
index f0cf8e49d5..3ecb9c3d7d 100644
--- a/persistence-modules/spring-persistence-simple/pom.xml
+++ b/persistence-modules/spring-persistence-simple/pom.xml
@@ -1,5 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>spring-persistence-simple</artifactId>
     <version>0.1-SNAPSHOT</version>
@@ -130,7 +131,7 @@
                     </execution>
                 </executions>
             </plugin>
-        </plugins>	
+        </plugins>
     </build>
 
     <properties>
diff --git a/pom.xml b/pom.xml
index d02d83f3de..f29fe4f248 100644
--- a/pom.xml
+++ b/pom.xml
@@ -1,8 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0"
          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-
     <groupId>com.baeldung</groupId>
     <artifactId>parent-modules</artifactId>
     <version>1.0.0-SNAPSHOT</version>
@@ -815,7 +815,8 @@
                 <module>spring-rest-simple</module>
                 <module>spring-resttemplate</module>
                 <module>spring-roo</module>
-                <module>spring-scheduling</module><module>spring-security-acl</module>
+                <module>spring-scheduling</module>
+                <module>spring-security-acl</module>
                 <module>spring-security-angular/server</module>
                 <module>spring-security-cache-control</module>
 
@@ -1542,7 +1543,6 @@
 
         </profile>
 
-
     </profiles>
 
     <reporting>
diff --git a/protobuffer/pom.xml b/protobuffer/pom.xml
index d9e6cb26e4..e57495e93c 100644
--- a/protobuffer/pom.xml
+++ b/protobuffer/pom.xml
@@ -1,13 +1,13 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>protobuffer</artifactId>
-	<name>protobuffer</name>
-	
+    <name>protobuffer</name>
+
     <parent>
-        <artifactId>parent-modules</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-modules</artifactId>
         <version>1.0.0-SNAPSHOT</version>
     </parent>
 
diff --git a/quarkus-extension/pom.xml b/quarkus-extension/pom.xml
index 1a4f7b96fb..38d7c3d548 100644
--- a/quarkus-extension/pom.xml
+++ b/quarkus-extension/pom.xml
@@ -3,11 +3,10 @@
          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-
     <groupId>com.baeldung.quarkus.extension</groupId>
     <artifactId>quarkus-extension</artifactId>
     <version>1.0-SNAPSHOT</version>
-    <name>Quarkus - Liquibase Extension</name>
+    <name>quarkus-extension</name>
     <packaging>pom</packaging>
 
     <modules>
diff --git a/quarkus-extension/quarkus-app/pom.xml b/quarkus-extension/quarkus-app/pom.xml
index c4ce802418..6e4cce3ae7 100644
--- a/quarkus-extension/quarkus-app/pom.xml
+++ b/quarkus-extension/quarkus-app/pom.xml
@@ -6,16 +6,7 @@
     <groupId>com.baeldung.quarkus.app</groupId>
     <artifactId>quarkus-app</artifactId>
     <version>1.0-SNAPSHOT</version>
-    <properties>
-        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
-        <surefire-plugin.version>2.22.0</surefire-plugin.version>
-        <maven.compiler.parameters>true</maven.compiler.parameters>
-        <quarkus.version>1.0.0.Final</quarkus.version>
-        <compiler-plugin.version>3.8.1</compiler-plugin.version>
-        <maven.compiler.source>1.8</maven.compiler.source>
-        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-        <maven.compiler.target>1.8</maven.compiler.target>
-    </properties>
+
     <dependencyManagement>
         <dependencies>
             <dependency>
@@ -27,6 +18,7 @@
             </dependency>
         </dependencies>
     </dependencyManagement>
+
     <dependencies>
         <dependency>
             <groupId>com.baeldung.quarkus.liquibase</groupId>
@@ -39,6 +31,7 @@
             <version>${quarkus.version}</version>
         </dependency>
     </dependencies>
+
     <build>
         <plugins>
             <plugin>
@@ -68,4 +61,16 @@
             </plugin>
         </plugins>
     </build>
+
+    <properties>
+        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
+        <surefire-plugin.version>2.22.0</surefire-plugin.version>
+        <maven.compiler.parameters>true</maven.compiler.parameters>
+        <quarkus.version>1.0.0.Final</quarkus.version>
+        <compiler-plugin.version>3.8.1</compiler-plugin.version>
+        <maven.compiler.source>1.8</maven.compiler.source>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <maven.compiler.target>1.8</maven.compiler.target>
+    </properties>
+
 </project>
diff --git a/quarkus-extension/quarkus-liquibase/deployment/pom.xml b/quarkus-extension/quarkus-liquibase/deployment/pom.xml
index b439a35a28..f005ac4e8c 100644
--- a/quarkus-extension/quarkus-liquibase/deployment/pom.xml
+++ b/quarkus-extension/quarkus-liquibase/deployment/pom.xml
@@ -2,18 +2,17 @@
 <project xmlns="http://maven.apache.org/POM/4.0.0"
          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <artifactId>quarkus-liquibase-deployment</artifactId>
+    <name>quarkus-liquibase-deployment</name>
+
     <parent>
-        <artifactId>quarkus-liquibase-parent</artifactId>
         <groupId>com.baeldung.quarkus.liquibase</groupId>
+        <artifactId>quarkus-liquibase-parent</artifactId>
         <version>1.0-SNAPSHOT</version>
     </parent>
-    <modelVersion>4.0.0</modelVersion>
-    <name>Quarkus - Liquibase - Deployment</name>
-
-    <artifactId>quarkus-liquibase-deployment</artifactId>
 
     <dependencies>
-
         <dependency>
             <groupId>io.quarkus</groupId>
             <artifactId>quarkus-core-deployment</artifactId>
@@ -29,13 +28,11 @@
             <artifactId>quarkus-agroal-deployment</artifactId>
             <version>${quarkus.version}</version>
         </dependency>
-
         <dependency>
             <groupId>com.baeldung.quarkus.liquibase</groupId>
             <artifactId>quarkus-liquibase</artifactId>
             <version>${project.version}</version>
         </dependency>
-
     </dependencies>
 
     <build>
@@ -57,5 +54,4 @@
         </plugins>
     </build>
 
-
 </project>
\ No newline at end of file
diff --git a/quarkus-extension/quarkus-liquibase/pom.xml b/quarkus-extension/quarkus-liquibase/pom.xml
index 3b036f0658..e1f3e243ab 100644
--- a/quarkus-extension/quarkus-liquibase/pom.xml
+++ b/quarkus-extension/quarkus-liquibase/pom.xml
@@ -3,13 +3,17 @@
          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-
     <groupId>com.baeldung.quarkus.liquibase</groupId>
     <artifactId>quarkus-liquibase-parent</artifactId>
     <version>1.0-SNAPSHOT</version>
-    <name>Quarkus - Liquibase</name>
+    <name>quarkus-liquibase-parent</name>
     <packaging>pom</packaging>
 
+    <modules>
+        <module>runtime</module>
+        <module>deployment</module>
+    </modules>
+
     <properties>
         <maven.compiler.source>1.8</maven.compiler.source>
         <maven.compiler.target>1.8</maven.compiler.target>
@@ -17,9 +21,4 @@
         <quarkus.version>1.0.0.Final</quarkus.version>
     </properties>
 
-    <modules>
-        <module>runtime</module>
-        <module>deployment</module>
-    </modules>
-
 </project>
\ No newline at end of file
diff --git a/quarkus-extension/quarkus-liquibase/runtime/pom.xml b/quarkus-extension/quarkus-liquibase/runtime/pom.xml
index de570dc27d..a1d705c691 100644
--- a/quarkus-extension/quarkus-liquibase/runtime/pom.xml
+++ b/quarkus-extension/quarkus-liquibase/runtime/pom.xml
@@ -2,15 +2,15 @@
 <project xmlns="http://maven.apache.org/POM/4.0.0"
          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <artifactId>quarkus-liquibase-runtime</artifactId>
+    <name>quarkus-liquibase-runtime</name>
+
     <parent>
         <groupId>com.baeldung.quarkus.liquibase</groupId>
         <artifactId>quarkus-liquibase-parent</artifactId>
         <version>1.0-SNAPSHOT</version>
     </parent>
-    <modelVersion>4.0.0</modelVersion>
-    <name>Quarkus - Liquibase - Runtime</name>
-
-    <artifactId>quarkus-liquibase</artifactId>
 
     <dependencies>
         <dependency>
@@ -29,6 +29,7 @@
             <version>3.8.1</version>
         </dependency>
     </dependencies>
+
     <build>
         <plugins>
             <plugin>
diff --git a/quarkus/pom.xml b/quarkus/pom.xml
index 31e3c8f8a0..de4c2ca9a3 100644
--- a/quarkus/pom.xml
+++ b/quarkus/pom.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0"?>
 <project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd" xmlns="http://maven.apache.org/POM/4.0.0"
-        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
     <modelVersion>4.0.0</modelVersion>
     <groupId>com.baeldung.quarkus</groupId>
     <artifactId>quarkus</artifactId>
@@ -12,14 +12,7 @@
         <artifactId>parent-modules</artifactId>
         <version>1.0.0-SNAPSHOT</version>
     </parent>
-    
-    <properties>
-        <surefire-plugin.version>2.22.0</surefire-plugin.version>
-        <quarkus.version>0.15.0</quarkus.version>
-        <maven.compiler.source>1.8</maven.compiler.source>
-        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-        <maven.compiler.target>1.8</maven.compiler.target>
-    </properties>
+
     <dependencyManagement>
         <dependencies>
             <dependency>
@@ -31,6 +24,7 @@
             </dependency>
         </dependencies>
     </dependencyManagement>
+
     <dependencies>
         <dependency>
             <groupId>io.quarkus</groupId>
@@ -47,6 +41,7 @@
             <scope>test</scope>
         </dependency>
     </dependencies>
+
     <build>
         <plugins>
             <plugin>
@@ -72,6 +67,7 @@
             </plugin>
         </plugins>
     </build>
+
     <profiles>
         <profile>
             <id>native</id>
@@ -118,4 +114,13 @@
             </build>
         </profile>
     </profiles>
+
+    <properties>
+        <surefire-plugin.version>2.22.0</surefire-plugin.version>
+        <quarkus.version>0.15.0</quarkus.version>
+        <maven.compiler.source>1.8</maven.compiler.source>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <maven.compiler.target>1.8</maven.compiler.target>
+    </properties>
+
 </project>
diff --git a/rabbitmq/pom.xml b/rabbitmq/pom.xml
index b620248cfc..b544da4c44 100644
--- a/rabbitmq/pom.xml
+++ b/rabbitmq/pom.xml
@@ -1,9 +1,7 @@
-<?xml version="1.0"?>
+<?xml version="1.0" encoding="UTF-8"?>
 <project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd" xmlns="http://maven.apache.org/POM/4.0.0"
-    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
-
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung</groupId>
     <artifactId>rabbitmq</artifactId>
     <version>0.1-SNAPSHOT</version>
     <name>rabbitmq</name>
diff --git a/ratpack/pom.xml b/ratpack/pom.xml
index 0df313c05e..a00be905ee 100644
--- a/ratpack/pom.xml
+++ b/ratpack/pom.xml
@@ -1,7 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung</groupId>
     <artifactId>ratpack</artifactId>
     <version>1.0-SNAPSHOT</version>
     <name>ratpack</name>
@@ -27,17 +27,17 @@
             <version>${ratpack.version}</version>
         </dependency>
         <dependency>
-    		<groupId>org.codehaus.groovy</groupId>
-		    <artifactId>groovy-sql</artifactId>
-		    <version>${groovy.sql.version}</version>
-		</dependency>
+            <groupId>org.codehaus.groovy</groupId>
+            <artifactId>groovy-sql</artifactId>
+            <version>${groovy.sql.version}</version>
+        </dependency>
         <dependency>
             <groupId>io.ratpack</groupId>
             <artifactId>ratpack-hikari</artifactId>
             <version>${ratpack.version}</version>
         </dependency>
         <dependency>
-        	<groupId>io.ratpack</groupId>
+            <groupId>io.ratpack</groupId>
             <artifactId>ratpack-groovy-test</artifactId>
             <version>${ratpack.test.latest.version}</version>
         </dependency>
@@ -104,4 +104,5 @@
         <groovy.sql.version>2.4.15</groovy.sql.version>
         <ratpack.test.latest.version>1.6.1</ratpack.test.latest.version>
     </properties>
+
 </project>
diff --git a/reactor-core/pom.xml b/reactor-core/pom.xml
index 66c634e113..c9917d14df 100644
--- a/reactor-core/pom.xml
+++ b/reactor-core/pom.xml
@@ -1,11 +1,12 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <groupId>org.baeldung</groupId>
     <artifactId>reactor-core</artifactId>
     <version>0.0.1-SNAPSHOT</version>
-	<name>reactor-core</name>
-	
+    <name>reactor-core</name>
+
     <parent>
         <groupId>com.baeldung</groupId>
         <artifactId>parent-modules</artifactId>
diff --git a/resteasy/pom.xml b/resteasy/pom.xml
index 8aea8077f9..ffb6adb3df 100644
--- a/resteasy/pom.xml
+++ b/resteasy/pom.xml
@@ -2,10 +2,9 @@
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung</groupId>
     <artifactId>resteasy</artifactId>
     <version>1.0</version>
-	<name>resteasy</name>
+    <name>resteasy</name>
     <packaging>war</packaging>
 
     <parent>
@@ -28,7 +27,6 @@
             </exclusions>
         </dependency>
 
-
         <dependency>
             <groupId>org.jboss.resteasy</groupId>
             <artifactId>resteasy-client</artifactId>
@@ -49,17 +47,15 @@
             <version>${resteasy.version}</version>
         </dependency>
 
-
         <dependency>
             <groupId>commons-io</groupId>
             <artifactId>commons-io</artifactId>
             <version>${commons-io.version}</version>
         </dependency>
-
     </dependencies>
 
     <build>
-        <finalName>RestEasyTutorial</finalName>
+        <finalName>resteasy</finalName>
         <plugins>
             <plugin>
                 <groupId>org.codehaus.cargo</groupId>
@@ -98,7 +94,7 @@
                                 <configuration>
                                     <excludes>
                                         <exclude>**/*IntegrationTest.java</exclude>
-                        				<exclude>**/*IntTest.java</exclude>
+                                        <exclude>**/*IntTest.java</exclude>
                                     </excludes>
                                     <includes>
                                         <include>**/*LiveTest.java</include>
diff --git a/restx/pom.xml b/restx/pom.xml
index 10c843a208..17c25fcdc0 100644
--- a/restx/pom.xml
+++ b/restx/pom.xml
@@ -7,8 +7,8 @@
     <version>0.1-SNAPSHOT</version>
     <name>restx</name>
     <packaging>war</packaging>
-	
-	<parent>
+
+    <parent>
         <groupId>com.baeldung</groupId>
         <artifactId>parent-modules</artifactId>
         <version>1.0.0-SNAPSHOT</version>
@@ -114,7 +114,7 @@
             <scope>test</scope>
         </dependency>
     </dependencies>
-	
+
     <build>
         <plugins>
             <plugin>
@@ -153,4 +153,5 @@
         <restx.version>0.35-rc4</restx.version>
         <logback-classic.version>1.2.3</logback-classic.version>
     </properties>
+
 </project>
diff --git a/rsocket/pom.xml b/rsocket/pom.xml
index d2182719c2..70f21064b6 100644
--- a/rsocket/pom.xml
+++ b/rsocket/pom.xml
@@ -1,5 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>rsocket</artifactId>
     <version>0.0.1-SNAPSHOT</version>
@@ -56,9 +57,10 @@
         <maven.compiler.source>1.8</maven.compiler.source>
         <maven.compiler.target>1.8</maven.compiler.target>
         <archetype-packaging.version>3.0.1</archetype-packaging.version>
-		<rsocket.version>0.11.13</rsocket.version>
-		<hamcrest.version>1.3</hamcrest.version>
-		<logback.version>1.2.3</logback.version>
-		<slf4j-api.version>1.7.25</slf4j-api.version>
+        <rsocket.version>0.11.13</rsocket.version>
+        <hamcrest.version>1.3</hamcrest.version>
+        <logback.version>1.2.3</logback.version>
+        <slf4j-api.version>1.7.25</slf4j-api.version>
     </properties>
+
 </project>
diff --git a/rule-engines/easy-rules/pom.xml b/rule-engines/easy-rules/pom.xml
index 369451c56c..c1ba829045 100644
--- a/rule-engines/easy-rules/pom.xml
+++ b/rule-engines/easy-rules/pom.xml
@@ -1,5 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <groupId>com.baeldung.easyrules</groupId>
     <artifactId>easy-rules</artifactId>
@@ -24,4 +25,5 @@
     <properties>
         <easy-rules.version>3.0.0</easy-rules.version>
     </properties>
+
 </project>
diff --git a/rule-engines/openl-tablets/pom.xml b/rule-engines/openl-tablets/pom.xml
index b19ec8d3f1..d1c7baabcc 100644
--- a/rule-engines/openl-tablets/pom.xml
+++ b/rule-engines/openl-tablets/pom.xml
@@ -1,5 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <groupId>com.baeldung.openltablets</groupId>
     <artifactId>openl-tablets</artifactId>
diff --git a/rule-engines/pom.xml b/rule-engines/pom.xml
index 2ce82ed22b..cc015c600b 100644
--- a/rule-engines/pom.xml
+++ b/rule-engines/pom.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://maven.apache.org/POM/4.0.0"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>rule-engines</artifactId>
     <name>rule-engines</name>
diff --git a/rule-engines/rulebook/pom.xml b/rule-engines/rulebook/pom.xml
index 5e0b900bd9..b021adea10 100644
--- a/rule-engines/rulebook/pom.xml
+++ b/rule-engines/rulebook/pom.xml
@@ -1,5 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <groupId>com.baeldung.rulebook</groupId>
     <artifactId>rulebook</artifactId>
diff --git a/rxjava-core/pom.xml b/rxjava-core/pom.xml
index 401ad83808..daec1f783f 100644
--- a/rxjava-core/pom.xml
+++ b/rxjava-core/pom.xml
@@ -1,11 +1,11 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>rxjava-core</artifactId>
     <version>1.0-SNAPSHOT</version>
-	<name>rxjava-core</name>
-	
+    <name>rxjava-core</name>
+
     <parent>
         <groupId>com.baeldung</groupId>
         <artifactId>parent-java</artifactId>
diff --git a/rxjava-libraries/pom.xml b/rxjava-libraries/pom.xml
index 541d9116c8..45c1907a58 100644
--- a/rxjava-libraries/pom.xml
+++ b/rxjava-libraries/pom.xml
@@ -45,7 +45,6 @@
             <artifactId>assertj-core</artifactId>
             <version>${assertj.version}</version>
         </dependency>
-
     </dependencies>
 
     <properties>
diff --git a/rxjava-observables/pom.xml b/rxjava-observables/pom.xml
index c2bf0bcd88..3cedfc4afc 100644
--- a/rxjava-observables/pom.xml
+++ b/rxjava-observables/pom.xml
@@ -29,7 +29,6 @@
             <artifactId>assertj-core</artifactId>
             <version>${assertj.version}</version>
         </dependency>
-
     </dependencies>
 
     <properties>
diff --git a/saas/pom.xml b/saas/pom.xml
index 35de34ea72..be5d18f020 100644
--- a/saas/pom.xml
+++ b/saas/pom.xml
@@ -1,7 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung</groupId>
     <artifactId>saas</artifactId>
     <version>0.1.0-SNAPSHOT</version>
     <name>saas</name>
@@ -10,8 +10,8 @@
     <parent>
         <groupId>com.baeldung</groupId>
         <artifactId>parent-java</artifactId>
-    	<version>0.0.1-SNAPSHOT</version>
-    	<relativePath>../parent-java</relativePath>
+        <version>0.0.1-SNAPSHOT</version>
+        <relativePath>../parent-java</relativePath>
     </parent>
 
     <dependencies>
diff --git a/software-security/sql-injection-samples/pom.xml b/software-security/sql-injection-samples/pom.xml
index 5c3256319e..6cacaa4ad0 100644
--- a/software-security/sql-injection-samples/pom.xml
+++ b/software-security/sql-injection-samples/pom.xml
@@ -1,66 +1,65 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
-	<modelVersion>4.0.0</modelVersion>
-	<groupId>com.baeldung</groupId>
-	<artifactId>sql-injection-samples</artifactId>
-	<version>0.0.1-SNAPSHOT</version>
-	<name>sql-injection-samples</name>
-	<description>Sample SQL Injection tests</description>
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <artifactId>sql-injection-samples</artifactId>
+    <version>0.0.1-SNAPSHOT</version>
+    <name>sql-injection-samples</name>
+    <description>Sample SQL Injection tests</description>
 
     <parent>
-        <artifactId>parent-boot-2</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-2</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../../parent-boot-2</relativePath>
-    </parent>	
+    </parent>
 
-	<dependencies>
-		<dependency>
-			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-starter-jdbc</artifactId>
-		</dependency>
-		<dependency>
-			<groupId>org.apache.derby</groupId>
-			<artifactId>derby</artifactId>
-			<scope>runtime</scope>
-		</dependency>
-		<dependency>
-			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-configuration-processor</artifactId>
-			<optional>true</optional>
-		</dependency>
-		<dependency>
-			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-starter-test</artifactId>
-			<scope>test</scope>
-		</dependency>
-		<dependency>
-			<groupId>org.projectlombok</groupId>
-			<artifactId>lombok</artifactId>
-			<scope>provided</scope>
-		</dependency>
-		<dependency>
-			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-starter-data-jpa</artifactId>
-		</dependency>
-		<dependency>
-		    <groupId>org.hibernate</groupId>
-		    <artifactId>hibernate-jpamodelgen</artifactId>
-		</dependency>
-		<dependency>
-			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-devtools</artifactId>
-		</dependency>
-	</dependencies>
+    <dependencies>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-jdbc</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.derby</groupId>
+            <artifactId>derby</artifactId>
+            <scope>runtime</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-configuration-processor</artifactId>
+            <optional>true</optional>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-test</artifactId>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.projectlombok</groupId>
+            <artifactId>lombok</artifactId>
+            <scope>provided</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-data-jpa</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.hibernate</groupId>
+            <artifactId>hibernate-jpamodelgen</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-devtools</artifactId>
+        </dependency>
+    </dependencies>
 
-	<build>
-		<plugins>
-			<plugin>
-				<groupId>org.springframework.boot</groupId>
-				<artifactId>spring-boot-maven-plugin</artifactId>
-			</plugin>
-		</plugins>
-	</build>
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.springframework.boot</groupId>
+                <artifactId>spring-boot-maven-plugin</artifactId>
+            </plugin>
+        </plugins>
+    </build>
 
 </project>
\ No newline at end of file
diff --git a/spark-java/pom.xml b/spark-java/pom.xml
index ef33f4cbe0..686cf75058 100644
--- a/spark-java/pom.xml
+++ b/spark-java/pom.xml
@@ -1,8 +1,7 @@
 <?xml version="1.0"?>
 <project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd" xmlns="http://maven.apache.org/POM/4.0.0"
-    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung</groupId>
     <artifactId>spark-java</artifactId>
     <version>0.1.0-SNAPSHOT</version>
     <name>spark-java</name>
diff --git a/spf4j/pom.xml b/spf4j/pom.xml
index 43a8028dc4..b0568e9f7a 100644
--- a/spf4j/pom.xml
+++ b/spf4j/pom.xml
@@ -1,15 +1,15 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <groupId>com.baeldung.spf4j</groupId>
     <artifactId>spf4j</artifactId>
     <name>spf4j</name>
     <packaging>pom</packaging>
-    
+
     <parent>
-        <artifactId>parent-modules</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-modules</artifactId>
         <version>1.0.0-SNAPSHOT</version>
     </parent>
 
@@ -17,5 +17,5 @@
         <module>spf4j-core-app</module>
         <module>spf4j-aspects-app</module>
     </modules>
-    
+
 </project>
diff --git a/spf4j/spf4j-aspects-app/pom.xml b/spf4j/spf4j-aspects-app/pom.xml
index 1c707f4d87..2458e2d8ad 100644
--- a/spf4j/spf4j-aspects-app/pom.xml
+++ b/spf4j/spf4j-aspects-app/pom.xml
@@ -1,15 +1,16 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0"
-    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>spf4j-aspects-app</artifactId>
     <version>0.0.1-SNAPSHOT</version>
-    <packaging>jar</packaging>
     <name>spf4j-aspects-app</name>
+    <packaging>jar</packaging>
 
     <parent>
-        <artifactId>parent-modules</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-modules</artifactId>
         <version>1.0.0-SNAPSHOT</version>
         <relativePath>../../</relativePath>
     </parent>
@@ -78,10 +79,11 @@
             </plugin>
         </plugins>
     </build>
-	
+
     <properties>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <spf4j.version>8.6.10</spf4j.version>
         <org.slf4j.version>1.7.21</org.slf4j.version>
     </properties>
+
 </project>
diff --git a/spf4j/spf4j-core-app/pom.xml b/spf4j/spf4j-core-app/pom.xml
index 9f490d9f06..45300fd4a4 100644
--- a/spf4j/spf4j-core-app/pom.xml
+++ b/spf4j/spf4j-core-app/pom.xml
@@ -1,15 +1,16 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0"
-    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>spf4j-core-app</artifactId>
     <version>0.0.1-SNAPSHOT</version>
-    <packaging>jar</packaging>
     <name>spf4j-core-app</name>
+    <packaging>jar</packaging>
 
     <parent>
-        <artifactId>parent-modules</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-modules</artifactId>
         <version>1.0.0-SNAPSHOT</version>
         <relativePath>../../</relativePath>
     </parent>
@@ -84,4 +85,5 @@
         <spf4j.version>8.6.10</spf4j.version>
         <org.slf4j.version>1.7.21</org.slf4j.version>
     </properties>
+
 </project>
diff --git a/spring-4/pom.xml b/spring-4/pom.xml
index 6c282b76a0..b6b8deb273 100644
--- a/spring-4/pom.xml
+++ b/spring-4/pom.xml
@@ -1,5 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <groupId>spring-4</groupId>
     <artifactId>spring-4</artifactId>
@@ -7,8 +8,8 @@
     <packaging>jar</packaging>
 
     <parent>
-        <artifactId>parent-boot-1</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-1</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../parent-boot-1</relativePath>
     </parent>
@@ -36,7 +37,7 @@
         <dependency>
             <groupId>com.zaxxer</groupId>
             <artifactId>HikariCP</artifactId>
-            </dependency>
+        </dependency>
         <dependency>
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-test</artifactId>
diff --git a/spring-5-data-reactive/pom.xml b/spring-5-data-reactive/pom.xml
index 296da87529..230f25768e 100644
--- a/spring-5-data-reactive/pom.xml
+++ b/spring-5-data-reactive/pom.xml
@@ -7,8 +7,8 @@
     <packaging>jar</packaging>
 
     <parent>
-        <artifactId>parent-boot-2</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-2</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../parent-boot-2</relativePath>
     </parent>
@@ -119,7 +119,6 @@
             <version>${couchbaseMock.version}</version>
             <scope>test</scope>
         </dependency>
-
     </dependencies>
 
     <build>
diff --git a/spring-5-mvc/pom.xml b/spring-5-mvc/pom.xml
index 7417f39c21..2f8ef05bff 100644
--- a/spring-5-mvc/pom.xml
+++ b/spring-5-mvc/pom.xml
@@ -1,12 +1,12 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0"
-    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>spring-5-mvc</artifactId>
     <name>spring-5-mvc</name>
-    <description>spring 5 MVC sample project about new features</description>
     <packaging>jar</packaging>
+    <description>spring 5 MVC sample project about new features</description>
 
     <parent>
         <groupId>com.baeldung</groupId>
@@ -178,4 +178,5 @@
         <start-class>com.baeldung.Spring5Application</start-class>
         <httpclient.version>4.5.8</httpclient.version>
     </properties>
+
 </project>
diff --git a/spring-5-reactive-2/pom.xml b/spring-5-reactive-2/pom.xml
index 37c9ad3579..fdeebd1dfd 100644
--- a/spring-5-reactive-2/pom.xml
+++ b/spring-5-reactive-2/pom.xml
@@ -1,8 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung</groupId>
     <artifactId>spring-5-reactive-2</artifactId>
     <version>0.0.1-SNAPSHOT</version>
     <name>spring-5-reactive-2</name>
@@ -30,24 +29,24 @@
             <artifactId>reactor-spring</artifactId>
             <version>${reactor-spring.version}</version>
         </dependency>
-        
+
         <dependency>
             <groupId>org.projectlombok</groupId>
             <artifactId>lombok</artifactId>
             <scope>provided</scope>
         </dependency>
-        
+
         <dependency>
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-test</artifactId>
             <scope>test</scope>
         </dependency>
-        
-         <dependency>
-        	<groupId>com.github.tomakehurst</groupId>
-        	<artifactId>wiremock-jre8</artifactId>
-        	<version>${wiremock.version}</version>
-        	<scope>test</scope>
+
+        <dependency>
+            <groupId>com.github.tomakehurst</groupId>
+            <artifactId>wiremock-jre8</artifactId>
+            <version>${wiremock.version}</version>
+            <scope>test</scope>
         </dependency>
         <dependency>
             <groupId>io.projectreactor</groupId>
@@ -68,10 +67,10 @@
             </plugin>
         </plugins>
     </build>
-    
+
     <properties>
         <reactor-spring.version>1.0.1.RELEASE</reactor-spring.version>
-    	<wiremock.version>2.24.0</wiremock.version>
+        <wiremock.version>2.24.0</wiremock.version>
     </properties>
 
 </project>
diff --git a/spring-5-reactive-client/pom.xml b/spring-5-reactive-client/pom.xml
index 994239fa9b..2981fc4f77 100644
--- a/spring-5-reactive-client/pom.xml
+++ b/spring-5-reactive-client/pom.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>spring-5-reactive-client</artifactId>
     <name>spring-5-reactive-client</name>
@@ -124,7 +124,6 @@
             <version>${jetty-reactive-httpclient.version}</version>
             <scope>test</scope>
         </dependency>
-
     </dependencies>
 
     <build>
diff --git a/spring-5-reactive-oauth/pom.xml b/spring-5-reactive-oauth/pom.xml
index 06ce817a02..e286e821b2 100644
--- a/spring-5-reactive-oauth/pom.xml
+++ b/spring-5-reactive-oauth/pom.xml
@@ -1,75 +1,73 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
-	<modelVersion>4.0.0</modelVersion>
-	<groupId>com.baeldung.reactive.oauth</groupId>
-	<artifactId>spring-5-reactive-oauth</artifactId>
-	<version>1.0.0-SNAPSHOT</version>
-	<name>spring-5-reactive-oauth</name>
-	<packaging>jar</packaging>
-	<description>WebFluc and Spring Security OAuth </description>
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <groupId>com.baeldung.reactive.oauth</groupId>
+    <artifactId>spring-5-reactive-oauth</artifactId>
+    <version>1.0.0-SNAPSHOT</version>
+    <name>spring-5-reactive-oauth</name>
+    <packaging>jar</packaging>
+    <description>WebFluc and Spring Security OAuth</description>
 
-	<parent>
-        <artifactId>parent-boot-2</artifactId>
+    <parent>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-2</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../parent-boot-2</relativePath>
     </parent>
 
-	<dependencies>
-		<dependency>
-			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-starter-security</artifactId>
-		</dependency>
-		<dependency>
-			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-starter-webflux</artifactId>
-		</dependency>
+    <dependencies>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-security</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-webflux</artifactId>
+        </dependency>
 
         <dependency>
             <groupId>org.springframework.security</groupId>
             <artifactId>spring-security-oauth2-client</artifactId>
         </dependency>
 
-		<dependency>
-			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-starter-test</artifactId>
-			<scope>test</scope>
-		</dependency>
-		<dependency>
-			<groupId>io.projectreactor</groupId>
-			<artifactId>reactor-test</artifactId>
-			<scope>test</scope>
-		</dependency>
-		<dependency>
-			<groupId>org.springframework.security</groupId>
-			<artifactId>spring-security-test</artifactId>
-			<scope>test</scope>
-		</dependency>
-	</dependencies>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-test</artifactId>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>io.projectreactor</groupId>
+            <artifactId>reactor-test</artifactId>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.security</groupId>
+            <artifactId>spring-security-test</artifactId>
+            <scope>test</scope>
+        </dependency>
+    </dependencies>
 
-	<build>
-		<plugins>
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-surefire-plugin</artifactId>
+                <configuration>
+                    <testFailureIgnore>true</testFailureIgnore>
+                    <excludes>
+                        <exclude>**/*IntegrationTest.java</exclude>
+                        <exclude>**/*LiveTest.java</exclude>
+                    </excludes>
+                </configuration>
+            </plugin>
+        </plugins>
+    </build>
 
-			<plugin>
-				<groupId>org.apache.maven.plugins</groupId>
-				<artifactId>maven-surefire-plugin</artifactId>
-				<configuration>
-					<testFailureIgnore>true</testFailureIgnore>
-					<excludes>
-						<exclude>**/*IntegrationTest.java</exclude>
-						<exclude>**/*LiveTest.java</exclude>
-					</excludes>
-				</configuration>
-			</plugin>
-
-		</plugins>
-	</build>
-
-	<properties>
-		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-		<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
+    <properties>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
         <spring-boot.version>2.1.0.RELEASE</spring-boot.version>
-	</properties>
+    </properties>
 
 </project>
diff --git a/spring-5-reactive-security/pom.xml b/spring-5-reactive-security/pom.xml
index 72a73a86ce..2024cb5138 100644
--- a/spring-5-reactive-security/pom.xml
+++ b/spring-5-reactive-security/pom.xml
@@ -1,8 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung</groupId>
     <artifactId>spring-5-reactive-security</artifactId>
     <version>0.0.1-SNAPSHOT</version>
     <name>spring-5-reactive-security</name>
@@ -97,15 +96,15 @@
             <version>${project-reactor-test}</version>
             <scope>test</scope>
         </dependency>
-	    <dependency>
-	        <groupId>org.springframework.boot</groupId>
-	        <artifactId>spring-boot-starter-security</artifactId>
-	    </dependency>
-	    <dependency>
-	        <groupId>org.springframework.security</groupId>
-	        <artifactId>spring-security-test</artifactId>
-	        <scope>test</scope>
-	    </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-security</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.security</groupId>
+            <artifactId>spring-security-test</artifactId>
+            <scope>test</scope>
+        </dependency>
     </dependencies>
 
     <build>
diff --git a/spring-5-reactive/pom.xml b/spring-5-reactive/pom.xml
index e6690baf54..3b7383f726 100644
--- a/spring-5-reactive/pom.xml
+++ b/spring-5-reactive/pom.xml
@@ -1,8 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung</groupId>
     <artifactId>spring-5-reactive</artifactId>
     <version>0.0.1-SNAPSHOT</version>
     <name>spring-5-reactive</name>
@@ -75,7 +74,7 @@
             <scope>test</scope>
         </dependency>
 
-         <!-- Spring WebFlux WebSession -->
+        <!-- Spring WebFlux WebSession -->
         <dependency>
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-webflux</artifactId>
@@ -112,7 +111,6 @@
             <groupId>org.apache.httpcomponents</groupId>
             <artifactId>httpclient</artifactId>
         </dependency>
-
     </dependencies>
 
     <build>
diff --git a/spring-5-security-cognito/pom.xml b/spring-5-security-cognito/pom.xml
index cc6a4a56fb..8d03b91ce0 100644
--- a/spring-5-security-cognito/pom.xml
+++ b/spring-5-security-cognito/pom.xml
@@ -1,7 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
     xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung</groupId>
     <artifactId>spring-5-security-cognito</artifactId>
     <version>0.0.1-SNAPSHOT</version>
     <name>spring-5-security-cognito</name>
diff --git a/spring-5-security-oauth/pom.xml b/spring-5-security-oauth/pom.xml
index d9a1e3094e..40d54bf668 100644
--- a/spring-5-security-oauth/pom.xml
+++ b/spring-5-security-oauth/pom.xml
@@ -1,7 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
     xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung</groupId>
     <artifactId>spring-5-security-oauth</artifactId>
     <version>0.0.1-SNAPSHOT</version>
     <name>spring-5-security-oauth</name>
@@ -16,7 +16,6 @@
     </parent>
 
     <dependencies>
-
         <dependency>
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-security</artifactId>
diff --git a/spring-5-security/pom.xml b/spring-5-security/pom.xml
index 413337633f..c486d5346b 100644
--- a/spring-5-security/pom.xml
+++ b/spring-5-security/pom.xml
@@ -1,7 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung</groupId>
     <artifactId>spring-5-security</artifactId>
     <version>0.0.1-SNAPSHOT</version>
     <name>spring-5-security</name>
diff --git a/spring-5-webflux/pom.xml b/spring-5-webflux/pom.xml
index 91272593d3..84ee3e332c 100644
--- a/spring-5-webflux/pom.xml
+++ b/spring-5-webflux/pom.xml
@@ -1,9 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
-
 <project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://maven.apache.org/POM/4.0.0"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung</groupId>
     <artifactId>spring-5-webflux</artifactId>
     <version>1.0-SNAPSHOT</version>
     <name>spring-5-webflux</name>
diff --git a/spring-5/pom.xml b/spring-5/pom.xml
index 6e4162fbcc..eadfb5e512 100644
--- a/spring-5/pom.xml
+++ b/spring-5/pom.xml
@@ -1,9 +1,8 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0"
-    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung</groupId>
     <artifactId>spring-5</artifactId>
     <version>0.0.1-SNAPSHOT</version>
     <name>spring-5</name>
@@ -147,7 +146,6 @@
                 </configuration>
             </plugin>
         </plugins>
-
     </build>
 
     <properties>
diff --git a/spring-activiti/pom.xml b/spring-activiti/pom.xml
index e0196e807d..eef4d37ff8 100644
--- a/spring-activiti/pom.xml
+++ b/spring-activiti/pom.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>spring-activiti</artifactId>
     <name>spring-activiti</name>
@@ -8,8 +8,8 @@
     <description>Demo project for Spring Boot</description>
 
     <parent>
-        <artifactId>parent-boot-1</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-1</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../parent-boot-1</relativePath>
     </parent>
@@ -41,7 +41,7 @@
             <scope>test</scope>
         </dependency>
     </dependencies>
-    
+
     <build>
         <plugins>
             <plugin>
diff --git a/spring-akka/pom.xml b/spring-akka/pom.xml
index d8b943b5ae..23535a8ccc 100644
--- a/spring-akka/pom.xml
+++ b/spring-akka/pom.xml
@@ -1,7 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://maven.apache.org/POM/4.0.0"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung</groupId>
     <artifactId>spring-akka</artifactId>
     <version>0.1-SNAPSHOT</version>
     <name>spring-akka</name>
diff --git a/spring-amqp/pom.xml b/spring-amqp/pom.xml
index 3e6789dcb6..f32db5b8b4 100755
--- a/spring-amqp/pom.xml
+++ b/spring-amqp/pom.xml
@@ -1,15 +1,15 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung</groupId>
     <artifactId>spring-amqp</artifactId>
     <version>1.0.0-SNAPSHOT</version>
     <name>spring-amqp</name>
     <description>Introduction to Spring-AMQP</description>
 
     <parent>
-        <artifactId>parent-boot-2</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-2</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../parent-boot-2</relativePath>
     </parent>
diff --git a/spring-aop/pom.xml b/spring-aop/pom.xml
index a1e2ffd534..69de2d66fd 100644
--- a/spring-aop/pom.xml
+++ b/spring-aop/pom.xml
@@ -1,3 +1,4 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
     xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
@@ -6,8 +7,8 @@
     <packaging>war</packaging>
 
     <parent>
-        <artifactId>parent-boot-2</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-2</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../parent-boot-2</relativePath>
     </parent>
diff --git a/spring-apache-camel/pom.xml b/spring-apache-camel/pom.xml
index 3e76c0c7f1..2d0d632546 100644
--- a/spring-apache-camel/pom.xml
+++ b/spring-apache-camel/pom.xml
@@ -1,5 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <groupId>org.apache.camel</groupId>
     <artifactId>spring-apache-camel</artifactId>
@@ -48,7 +49,6 @@
         </dependency>
     </dependencies>
 
-
     <properties>
         <env.camel.version>2.18.1</env.camel.version>
         <env.spring.version>4.3.4.RELEASE</env.spring.version>
diff --git a/spring-batch/pom.xml b/spring-batch/pom.xml
index e6d7cee6f2..9edf8ad3be 100644
--- a/spring-batch/pom.xml
+++ b/spring-batch/pom.xml
@@ -1,7 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
     xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung</groupId>
     <artifactId>spring-batch</artifactId>
     <version>0.1-SNAPSHOT</version>
     <name>spring-batch</name>
@@ -16,7 +16,6 @@
     </parent>
 
     <dependencies>
-    
         <!-- JAXB APIs & runtime no longer provided in JDK 11 -->
         <!-- see http://openjdk.java.net/jeps/320 -->
         <dependency>
diff --git a/spring-bom/pom.xml b/spring-bom/pom.xml
index f974eb2334..e82c650fa9 100644
--- a/spring-bom/pom.xml
+++ b/spring-bom/pom.xml
@@ -1,8 +1,7 @@
 <?xml version="1.0"?>
 <project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd" xmlns="http://maven.apache.org/POM/4.0.0"
-    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung</groupId>
     <artifactId>spring-bom</artifactId>
     <version>1.0.0-SNAPSHOT</version>
     <name>spring-bom</name>
diff --git a/spring-boot-admin/pom.xml b/spring-boot-admin/pom.xml
index c553790359..ab2b92102c 100644
--- a/spring-boot-admin/pom.xml
+++ b/spring-boot-admin/pom.xml
@@ -1,9 +1,10 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>spring-boot-admin</artifactId>
     <version>0.0.1-SNAPSHOT</version>
-	<name>spring-boot-admin</name>
+    <name>spring-boot-admin</name>
     <packaging>pom</packaging>
 
     <parent>
diff --git a/spring-boot-admin/spring-boot-admin-client/pom.xml b/spring-boot-admin/spring-boot-admin-client/pom.xml
index aa2daf8d45..47abfdddc2 100644
--- a/spring-boot-admin/spring-boot-admin-client/pom.xml
+++ b/spring-boot-admin/spring-boot-admin-client/pom.xml
@@ -1,16 +1,16 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>spring-boot-admin-client</artifactId>
     <version>0.0.1-SNAPSHOT</version>
     <name>spring-boot-admin-client</name>
-    <description>Spring Boot Admin Client</description>
     <packaging>jar</packaging>
+    <description>Spring Boot Admin Client</description>
 
     <parent>
-        <artifactId>spring-boot-admin</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>spring-boot-admin</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../../spring-boot-admin</relativePath>
     </parent>
diff --git a/spring-boot-admin/spring-boot-admin-server/pom.xml b/spring-boot-admin/spring-boot-admin-server/pom.xml
index 5ef99976c8..d0d2d7a1ef 100644
--- a/spring-boot-admin/spring-boot-admin-server/pom.xml
+++ b/spring-boot-admin/spring-boot-admin-server/pom.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>spring-boot-admin-server</artifactId>
     <version>0.0.1-SNAPSHOT</version>
@@ -9,8 +9,8 @@
     <packaging>jar</packaging>
 
     <parent>
-        <artifactId>spring-boot-admin</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>spring-boot-admin</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../../spring-boot-admin</relativePath>
     </parent>
@@ -51,12 +51,12 @@
             <version>${spring-boot-admin-starter-client.version}</version>
         </dependency>
         <!--mail notifications -->
-        
+
         <dependency>
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-mail</artifactId>
         </dependency>
-         
+
         <dependency>
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-test</artifactId>
@@ -67,7 +67,6 @@
             <artifactId>spring-security-test</artifactId>
             <scope>test</scope>
         </dependency>
-
     </dependencies>
 
     <build>
diff --git a/spring-boot-angular/pom.xml b/spring-boot-angular/pom.xml
index 8c26668752..d78761e921 100644
--- a/spring-boot-angular/pom.xml
+++ b/spring-boot-angular/pom.xml
@@ -1,18 +1,18 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <groupId>com.baeldung.springbootangular</groupId>
     <artifactId>spring-boot-angular</artifactId>
-    <name>spring-boot-angular</name>
     <version>1.0</version>
+    <name>spring-boot-angular</name>
     <packaging>jar</packaging>
 
-
     <parent>
+        <groupId>com.baeldung</groupId>
         <artifactId>parent-boot-2</artifactId>
-	    <groupId>com.baeldung</groupId>
-	    <version>0.0.1-SNAPSHOT</version>
-	    <relativePath>../parent-boot-2</relativePath>
+        <version>0.0.1-SNAPSHOT</version>
+        <relativePath>../parent-boot-2</relativePath>
     </parent>
 
     <dependencies>
@@ -45,4 +45,5 @@
             </plugin>
         </plugins>
     </build>
+
 </project>
diff --git a/spring-boot-artifacts/pom.xml b/spring-boot-artifacts/pom.xml
index 8301533606..97d3c53b49 100644
--- a/spring-boot-artifacts/pom.xml
+++ b/spring-boot-artifacts/pom.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>spring-boot-artifacts</artifactId>
     <name>spring-boot-artifacts</name>
@@ -8,8 +8,8 @@
     <description>Demo project for Spring Boot</description>
 
     <parent>
-        <artifactId>parent-boot-2</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-2</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../parent-boot-2</relativePath>
     </parent>
@@ -90,7 +90,7 @@
             <artifactId>spring-cloud-context</artifactId>
             <version>${springcloud.version}</version>
         </dependency>
-        
+
         <dependency>
             <groupId>org.apache.httpcomponents</groupId>
             <artifactId>httpclient</artifactId>
@@ -132,9 +132,9 @@
                         <configuration>
                             <!-- Skips integration tests if the value of skip.integration.tests 
                                 property is true -->
-                                <includes>
-                                        <include>**/ExternalPropertyFileLoaderIntegrationTest.java</include>
-                                    </includes>
+                            <includes>
+                                <include>**/ExternalPropertyFileLoaderIntegrationTest.java</include>
+                            </includes>
                         </configuration>
                     </execution>
                 </executions>
@@ -178,7 +178,7 @@
             </build>
         </profile>
     </profiles>
-    
+
     <properties>
         <!-- The main class to start by executing java -jar -->
         <start-class>org.baeldung.boot.Application</start-class>
diff --git a/spring-boot-autoconfiguration/pom.xml b/spring-boot-autoconfiguration/pom.xml
index 5b3b0eb86c..a39bf0f071 100644
--- a/spring-boot-autoconfiguration/pom.xml
+++ b/spring-boot-autoconfiguration/pom.xml
@@ -1,7 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
     xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung</groupId>
     <artifactId>spring-boot-autoconfiguration</artifactId>
     <version>0.0.1-SNAPSHOT</version>
     <name>spring-boot-autoconfiguration</name>
@@ -9,8 +9,8 @@
     <description>This is simple boot application demonstrating a custom auto-configuration</description>
 
     <parent>
-        <artifactId>parent-boot-2</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-2</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../parent-boot-2</relativePath>
     </parent>
diff --git a/spring-boot-bootstrap/pom.xml b/spring-boot-bootstrap/pom.xml
index 70ebb225c8..a81908d8b6 100644
--- a/spring-boot-bootstrap/pom.xml
+++ b/spring-boot-bootstrap/pom.xml
@@ -1,336 +1,335 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-				 xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
-	<modelVersion>4.0.0</modelVersion>
-	<groupId>com.baeldung</groupId>
-	<artifactId>spring-boot-bootstrap</artifactId>
-	<name>spring-boot-bootstrap</name>
-	<description>Demo project for Spring Boot</description>
-	<packaging>jar</packaging>
-    
-    <parent>
-		<artifactId>parent-boot-2</artifactId>
-		<groupId>com.baeldung</groupId>
-		<version>0.0.1-SNAPSHOT</version>
-		<relativePath>../parent-boot-2</relativePath>
-	</parent>
-    
-    <dependencies>
-		<dependency>
-			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-starter-web</artifactId>
-		</dependency>
-		<dependency>
-			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-starter-thymeleaf</artifactId>
-		</dependency>
-		<dependency>
-			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-starter-data-jpa</artifactId>
-		</dependency>
-		<dependency>
-			<groupId>com.h2database</groupId>
-			<artifactId>h2</artifactId>
-		</dependency>
-		<dependency>
-			<groupId>mysql</groupId>
-			<artifactId>mysql-connector-java</artifactId>
-		</dependency>
-		<dependency>
-			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-starter-security</artifactId>
-		</dependency>
-		<dependency>
-			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-starter-test</artifactId>
-			<scope>test</scope>
-		</dependency>
-		<dependency>
-			<groupId>io.rest-assured</groupId>
-			<artifactId>rest-assured</artifactId>
-			<version>${rest-assured.version}</version>
-			<scope>test</scope>
-		</dependency>
-		<dependency>
-			<groupId>javax.servlet</groupId>
-			<artifactId>javax.servlet-api</artifactId>
-			<version>${servlet.version}</version>
-		</dependency>
-	</dependencies>
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <artifactId>spring-boot-bootstrap</artifactId>
+    <name>spring-boot-bootstrap</name>
+    <packaging>jar</packaging>
+    <description>Demo project for Spring Boot</description>
+
+    <parent>
+        <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-2</artifactId>
+        <version>0.0.1-SNAPSHOT</version>
+        <relativePath>../parent-boot-2</relativePath>
+    </parent>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-web</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-thymeleaf</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-data-jpa</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>com.h2database</groupId>
+            <artifactId>h2</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>mysql</groupId>
+            <artifactId>mysql-connector-java</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-security</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-test</artifactId>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>io.rest-assured</groupId>
+            <artifactId>rest-assured</artifactId>
+            <version>${rest-assured.version}</version>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>javax.servlet</groupId>
+            <artifactId>javax.servlet-api</artifactId>
+            <version>${servlet.version}</version>
+        </dependency>
+    </dependencies>
+
+    <profiles>
+        <profile>
+            <id>beanstalk</id>
+            <build>
+                <finalName>${project.name}-eb</finalName>
+                <plugins>
+                    <plugin>
+                        <groupId>org.springframework.boot</groupId>
+                        <artifactId>spring-boot-maven-plugin</artifactId>
+                    </plugin>
+                    <plugin>
+                        <groupId>org.apache.maven.plugins</groupId>
+                        <artifactId>maven-compiler-plugin</artifactId>
+                        <configuration>
+                            <excludes>
+                                <exclude>**/cloud/config/*.java</exclude>
+                            </excludes>
+                        </configuration>
+                    </plugin>
+                </plugins>
+            </build>
+        </profile>
+        <profile>
+            <id>openshift</id>
+            <properties>
+                <spring-cloud-k8s.version>0.3.0.RELEASE</spring-cloud-k8s.version>
+                <spring-cloud.version>Greenwich.RELEASE</spring-cloud.version>
+                <fabric8.maven.plugin.version>3.5.37</fabric8.maven.plugin.version>
+            </properties>
+            <dependencyManagement>
+                <dependencies>
+                    <dependency>
+                        <groupId>org.springframework.cloud</groupId>
+                        <artifactId>spring-cloud-kubernetes-dependencies</artifactId>
+                        <version>${spring-cloud-k8s.version}</version>
+                        <type>pom</type>
+                        <scope>import</scope>
+                    </dependency>
+                    <dependency>
+                        <groupId>org.springframework.cloud</groupId>
+                        <artifactId>spring-cloud-dependencies</artifactId>
+                        <version>${spring-cloud.version}</version>
+                        <type>pom</type>
+                        <scope>import</scope>
+                    </dependency>
+                </dependencies>
+            </dependencyManagement>
+            <dependencies>
+                <dependency>
+                    <groupId>org.springframework.cloud</groupId>
+                    <artifactId>spring-cloud-starter-kubernetes-config</artifactId>
+                </dependency>
+                <dependency>
+                    <groupId>org.springframework.boot</groupId>
+                    <artifactId>spring-boot-starter-actuator</artifactId>
+                </dependency>
+                <dependency>
+                    <groupId>org.springframework.boot</groupId>
+                    <artifactId>spring-boot-actuator</artifactId>
+                </dependency>
+            </dependencies>
+            <build>
+                <resources>
+                    <resource>
+                        <directory>src/main/resources</directory>
+                        <excludes>
+                            <exclude>**/logback.xml</exclude>
+                        </excludes>
+                    </resource>
+                </resources>
+                <plugins>
+                    <plugin>
+                        <groupId>org.apache.maven.plugins</groupId>
+                        <artifactId>maven-compiler-plugin</artifactId>
+                        <configuration>
+                            <excludes>
+                                <exclude>**/cloud/config/*.java</exclude>
+                            </excludes>
+                        </configuration>
+                    </plugin>
+                    <plugin>
+                        <groupId>org.springframework.boot</groupId>
+                        <artifactId>spring-boot-maven-plugin</artifactId>
+                    </plugin>
+                    <plugin>
+                        <groupId>io.fabric8</groupId>
+                        <artifactId>fabric8-maven-plugin</artifactId>
+                        <version>${fabric8.maven.plugin.version}</version>
+                        <executions>
+                            <execution>
+                                <id>fmp</id>
+                                <goals>
+                                    <goal>resource</goal>
+                                    <goal>build</goal>
+                                </goals>
+                            </execution>
+                        </executions>
+                    </plugin>
+                </plugins>
+            </build>
+        </profile>
+        <profile>
+            <id>cloud-gcp</id>
+            <dependencyManagement>
+                <dependencies>
+                    <dependency>
+                        <groupId>org.springframework.cloud</groupId>
+                        <artifactId>spring-cloud-dependencies</artifactId>
+                        <version>Greenwich.RELEASE</version>
+                        <type>pom</type>
+                        <scope>import</scope>
+                    </dependency>
+                </dependencies>
+            </dependencyManagement>
+            <dependencies>
+                <dependency>
+                    <groupId>org.springframework.cloud</groupId>
+                    <artifactId>spring-cloud-gcp-starter</artifactId>
+                    <version>1.0.0.RELEASE</version>
+                </dependency>
+                <dependency>
+                    <groupId>org.springframework.cloud</groupId>
+                    <artifactId>spring-cloud-gcp-starter-sql-mysql</artifactId>
+                    <version>1.0.0.RELEASE</version>
+                </dependency>
+            </dependencies>
+            <build>
+                <finalName>${project.name}-gcp</finalName>
+                <resources>
+                    <resource>
+                        <directory>src/main/resources</directory>
+                        <excludes>
+                            <exclude>**/logback.xml</exclude>
+                        </excludes>
+                    </resource>
+                </resources>
+                <plugins>
+                    <plugin>
+                        <groupId>com.google.cloud.tools</groupId>
+                        <artifactId>appengine-maven-plugin</artifactId>
+                        <version>1.3.2</version>
+                    </plugin>
+                    <plugin>
+                        <groupId>org.springframework.boot</groupId>
+                        <artifactId>spring-boot-maven-plugin</artifactId>
+                    </plugin>
+                </plugins>
+            </build>
+        </profile>
+        <profile>
+            <id>cloudfoundry</id>
+            <dependencyManagement>
+                <dependencies>
+                    <dependency>
+                        <groupId>org.springframework.cloud</groupId>
+                        <artifactId>spring-cloud-dependencies</artifactId>
+                        <version>Greenwich.RELEASE</version>
+                        <type>pom</type>
+                        <scope>import</scope>
+                    </dependency>
+                </dependencies>
+            </dependencyManagement>
+            <dependencies>
+                <dependency>
+                    <groupId>org.springframework.cloud</groupId>
+                    <artifactId>spring-cloud-starter</artifactId>
+                </dependency>
+                <dependency>
+                    <groupId>org.springframework.boot</groupId>
+                    <artifactId>spring-boot-starter-cloud-connectors</artifactId>
+                </dependency>
+            </dependencies>
+            <build>
+                <finalName>${project.name}-cf</finalName>
+                <resources>
+                    <resource>
+                        <directory>src/main/resources</directory>
+                        <excludes>
+                            <exclude>**/logback.xml</exclude>
+                        </excludes>
+                    </resource>
+                </resources>
+                <plugins>
+                    <plugin>
+                        <groupId>org.springframework.boot</groupId>
+                        <artifactId>spring-boot-maven-plugin</artifactId>
+                    </plugin>
+                    <plugin>
+                        <groupId>org.apache.maven.plugins</groupId>
+                        <artifactId>maven-compiler-plugin</artifactId>
+                        <configuration>
+                            <excludes>
+                                <exclude>**/cloud/config/*.java</exclude>
+                            </excludes>
+                        </configuration>
+                    </plugin>
+                </plugins>
+            </build>
+        </profile>
+        <profile>
+            <id>autoconfiguration</id>
+            <build>
+                <plugins>
+                    <plugin>
+                        <groupId>org.apache.maven.plugins</groupId>
+                        <artifactId>maven-surefire-plugin</artifactId>
+                        <executions>
+                            <execution>
+                                <phase>integration-test</phase>
+                                <goals>
+                                    <goal>test</goal>
+                                </goals>
+                                <configuration>
+                                    <excludes>
+                                        <exclude>**/*LiveTest.java</exclude>
+                                        <exclude>**/*IntegrationTest.java</exclude>
+                                        <exclude>**/*IntTest.java</exclude>
+                                    </excludes>
+                                    <includes>
+                                        <include>**/AutoconfigurationTest.java</include>
+                                    </includes>
+                                </configuration>
+                            </execution>
+                        </executions>
+                        <configuration>
+                            <systemPropertyVariables>
+                                <test.mime>json</test.mime>
+                            </systemPropertyVariables>
+                        </configuration>
+                    </plugin>
+                </plugins>
+            </build>
+        </profile>
+        <profile>
+            <id>thin-jar</id>
+            <build>
+                <plugins>
+                    <plugin>
+                        <groupId>org.springframework.boot.experimental</groupId>
+                        <artifactId>spring-boot-thin-maven-plugin</artifactId>
+                        <version>${thin.version}</version>
+                        <executions>
+                            <execution>
+                                <!-- Download the dependencies at build time -->
+                                <id>resolve</id>
+                                <goals>
+                                    <goal>resolve</goal>
+                                </goals>
+                                <inherited>false</inherited>
+                            </execution>
+                        </executions>
+                    </plugin>
+                </plugins>
+            </build>
+        </profile>
+    </profiles>
 
-	<profiles>
-		<profile>
-			<id>beanstalk</id>
-			<build>
-				<finalName>${project.name}-eb</finalName>
-				<plugins>
-					<plugin>
-						<groupId>org.springframework.boot</groupId>
-						<artifactId>spring-boot-maven-plugin</artifactId>
-					</plugin>
-					<plugin>
-						<groupId>org.apache.maven.plugins</groupId>
-						<artifactId>maven-compiler-plugin</artifactId>
-						<configuration>
-							<excludes>
-								<exclude>**/cloud/config/*.java</exclude>
-							</excludes>
-						</configuration>
-					</plugin>
-				</plugins>
-			</build>
-		</profile>
-		<profile>
-			<id>openshift</id>
-			<properties>
-				<spring-cloud-k8s.version>0.3.0.RELEASE</spring-cloud-k8s.version>
-				<spring-cloud.version>Greenwich.RELEASE</spring-cloud.version>
-				<fabric8.maven.plugin.version>3.5.37</fabric8.maven.plugin.version>
-			</properties>
-			<dependencyManagement>
-				<dependencies>
-					<dependency>
-						<groupId>org.springframework.cloud</groupId>
-						<artifactId>spring-cloud-kubernetes-dependencies</artifactId>
-						<version>${spring-cloud-k8s.version}</version>
-						<type>pom</type>
-						<scope>import</scope>
-					</dependency>
-					<dependency>
-						<groupId>org.springframework.cloud</groupId>
-						<artifactId>spring-cloud-dependencies</artifactId>
-						<version>${spring-cloud.version}</version>
-						<type>pom</type>
-						<scope>import</scope>
-					</dependency>
-				</dependencies>
-			</dependencyManagement>
-			<dependencies>
-				<dependency>
-					<groupId>org.springframework.cloud</groupId>
-					<artifactId>spring-cloud-starter-kubernetes-config</artifactId>
-				</dependency>
-				<dependency>
-					<groupId>org.springframework.boot</groupId>
-					<artifactId>spring-boot-starter-actuator</artifactId>
-				</dependency>
-				<dependency>
-					<groupId>org.springframework.boot</groupId>
-					<artifactId>spring-boot-actuator</artifactId>
-				</dependency>
-			</dependencies>
-			<build>
-				<resources>
-					<resource>
-						<directory>src/main/resources</directory>
-						<excludes>
-							<exclude>**/logback.xml</exclude>
-						</excludes>
-					</resource>
-				</resources>
-				<plugins>
-					<plugin>
-						<groupId>org.apache.maven.plugins</groupId>
-						<artifactId>maven-compiler-plugin</artifactId>
-						<configuration>
-							<excludes>
-								<exclude>**/cloud/config/*.java</exclude>
-							</excludes>
-						</configuration>
-					</plugin>
-					<plugin>
-						<groupId>org.springframework.boot</groupId>
-						<artifactId>spring-boot-maven-plugin</artifactId>
-					</plugin>
-					<plugin>
-						<groupId>io.fabric8</groupId>
-						<artifactId>fabric8-maven-plugin</artifactId>
-						<version>${fabric8.maven.plugin.version}</version>
-						<executions>
-							<execution>
-								<id>fmp</id>
-								<goals>
-									<goal>resource</goal>
-									<goal>build</goal>
-								</goals>
-							</execution>
-						</executions>
-					</plugin>
-				</plugins>
-			</build>
-		</profile>
-		<profile>
-			<id>cloud-gcp</id>
-			<dependencyManagement>
-				<dependencies>
-					<dependency>
-						<groupId>org.springframework.cloud</groupId>
-						<artifactId>spring-cloud-dependencies</artifactId>
-						<version>Greenwich.RELEASE</version>
-						<type>pom</type>
-						<scope>import</scope>
-					</dependency>
-				</dependencies>
-			</dependencyManagement>
-			<dependencies>
-				<dependency>
-					<groupId>org.springframework.cloud</groupId>
-					<artifactId>spring-cloud-gcp-starter</artifactId>
-					<version>1.0.0.RELEASE</version>
-				</dependency>
-				<dependency>
-					<groupId>org.springframework.cloud</groupId>
-					<artifactId>spring-cloud-gcp-starter-sql-mysql</artifactId>
-					<version>1.0.0.RELEASE</version>
-				</dependency>
-			</dependencies>
-			<build>
-				<finalName>${project.name}-gcp</finalName>
-				<resources>
-					<resource>
-						<directory>src/main/resources</directory>
-						<excludes>
-							<exclude>**/logback.xml</exclude>
-						</excludes>
-					</resource>
-				</resources>
-				<plugins>
-					<plugin>
-						<groupId>com.google.cloud.tools</groupId>
-						<artifactId>appengine-maven-plugin</artifactId>
-						<version>1.3.2</version>
-					</plugin>
-					<plugin>
-						<groupId>org.springframework.boot</groupId>
-						<artifactId>spring-boot-maven-plugin</artifactId>
-					</plugin>
-				</plugins>
-			</build>
-		</profile>
-		<profile>
-			<id>cloudfoundry</id>
-			<dependencyManagement>
-				<dependencies>
-					<dependency>
-						<groupId>org.springframework.cloud</groupId>
-						<artifactId>spring-cloud-dependencies</artifactId>
-						<version>Greenwich.RELEASE</version>
-						<type>pom</type>
-						<scope>import</scope>
-					</dependency>
-				</dependencies>
-			</dependencyManagement>
-			<dependencies>
-				<dependency>
-					<groupId>org.springframework.cloud</groupId>
-					<artifactId>spring-cloud-starter</artifactId>
-				</dependency>
-				<dependency>
-					<groupId>org.springframework.boot</groupId>
-					<artifactId>spring-boot-starter-cloud-connectors</artifactId>
-				</dependency>
-			</dependencies>
-			<build>
-				<finalName>${project.name}-cf</finalName>
-				<resources>
-					<resource>
-						<directory>src/main/resources</directory>
-						<excludes>
-							<exclude>**/logback.xml</exclude>
-						</excludes>
-					</resource>
-				</resources>
-				<plugins>
-					<plugin>
-						<groupId>org.springframework.boot</groupId>
-						<artifactId>spring-boot-maven-plugin</artifactId>
-					</plugin>
-					<plugin>
-						<groupId>org.apache.maven.plugins</groupId>
-						<artifactId>maven-compiler-plugin</artifactId>
-						<configuration>
-							<excludes>
-								<exclude>**/cloud/config/*.java</exclude>
-							</excludes>
-						</configuration>
-					</plugin>
-				</plugins>
-			</build>
-		</profile>
-		<profile>
-			<id>autoconfiguration</id>
-			<build>
-				<plugins>
-					<plugin>
-						<groupId>org.apache.maven.plugins</groupId>
-						<artifactId>maven-surefire-plugin</artifactId>
-						<executions>
-							<execution>
-								<phase>integration-test</phase>
-								<goals>
-									<goal>test</goal>
-								</goals>
-								<configuration>
-									<excludes>
-										<exclude>**/*LiveTest.java</exclude>
-										<exclude>**/*IntegrationTest.java</exclude>
-										<exclude>**/*IntTest.java</exclude>
-									</excludes>
-									<includes>
-										<include>**/AutoconfigurationTest.java</include>
-									</includes>
-								</configuration>
-							</execution>
-						</executions>
-						<configuration>
-							<systemPropertyVariables>
-								<test.mime>json</test.mime>
-							</systemPropertyVariables>
-						</configuration>
-					</plugin>
-				</plugins>
-			</build>
-		</profile>
-		<profile>
-			<id>thin-jar</id>
-			<build>
-				<plugins>
-					<plugin>
-						<groupId>org.springframework.boot.experimental</groupId>
-						<artifactId>spring-boot-thin-maven-plugin</artifactId>
-						<version>${thin.version}</version>
-						<executions>
-							<execution>
-								<!-- Download the dependencies at build time -->
-								<id>resolve</id>
-								<goals>
-									<goal>resolve</goal>
-								</goals>
-								<inherited>false</inherited>
-							</execution>
-						</executions>
-					</plugin>
-				</plugins>
-			</build>
-		</profile>
-	</profiles>
-    
     <build>
-		<plugins>
-			<plugin>
-				<groupId>org.apache.maven.plugins</groupId>
-				<artifactId>maven-compiler-plugin</artifactId>
-				<configuration>
-					<excludes>
-						<exclude>**/cloud/config/*.java</exclude>
-					</excludes>
-				</configuration>
-			</plugin>
-		</plugins>
-	</build>
-    
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-compiler-plugin</artifactId>
+                <configuration>
+                    <excludes>
+                        <exclude>**/cloud/config/*.java</exclude>
+                    </excludes>
+                </configuration>
+            </plugin>
+        </plugins>
+    </build>
+
     <properties>
-		<servlet.version>4.0.0</servlet.version>
-	</properties>
+        <servlet.version>4.0.0</servlet.version>
+    </properties>
 
 </project>
diff --git a/spring-boot-client/pom.xml b/spring-boot-client/pom.xml
index 4850849039..2cfd413e93 100644
--- a/spring-boot-client/pom.xml
+++ b/spring-boot-client/pom.xml
@@ -1,7 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
     xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung</groupId>
     <artifactId>spring-boot-client</artifactId>
     <version>0.0.1-SNAPSHOT</version>
     <name>spring-boot-client</name>
@@ -9,8 +9,8 @@
     <description>This is simple boot client application for Spring boot actuator test</description>
 
     <parent>
-        <artifactId>parent-boot-2</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-2</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../parent-boot-2</relativePath>
     </parent>
diff --git a/spring-boot-config-jpa-error/data-jpa-application/pom.xml b/spring-boot-config-jpa-error/data-jpa-application/pom.xml
index 2952ff4c4c..9a311adfec 100644
--- a/spring-boot-config-jpa-error/data-jpa-application/pom.xml
+++ b/spring-boot-config-jpa-error/data-jpa-application/pom.xml
@@ -1,3 +1,4 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
@@ -9,4 +10,5 @@
         <artifactId>spring-boot-config-jpa-error</artifactId>
         <version>0.0.1-SNAPSHOT</version>
     </parent>
+
 </project>
\ No newline at end of file
diff --git a/spring-boot-config-jpa-error/data-jpa-library/pom.xml b/spring-boot-config-jpa-error/data-jpa-library/pom.xml
index f8b876b65b..2da9e5aa2c 100644
--- a/spring-boot-config-jpa-error/data-jpa-library/pom.xml
+++ b/spring-boot-config-jpa-error/data-jpa-library/pom.xml
@@ -1,3 +1,4 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
@@ -9,4 +10,5 @@
         <artifactId>spring-boot-config-jpa-error</artifactId>
         <version>0.0.1-SNAPSHOT</version>
     </parent>
+
 </project>
\ No newline at end of file
diff --git a/spring-boot-config-jpa-error/pom.xml b/spring-boot-config-jpa-error/pom.xml
index 12087aa610..4b99f9be93 100644
--- a/spring-boot-config-jpa-error/pom.xml
+++ b/spring-boot-config-jpa-error/pom.xml
@@ -1,3 +1,4 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
@@ -58,4 +59,5 @@
             </plugin>
         </plugins>
     </build>
+
 </project>
\ No newline at end of file
diff --git a/spring-boot-crud/pom.xml b/spring-boot-crud/pom.xml
index 1d956bdba6..e78e939f0c 100644
--- a/spring-boot-crud/pom.xml
+++ b/spring-boot-crud/pom.xml
@@ -4,15 +4,15 @@
          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>spring-boot-crud</artifactId>
-	<name>spring-boot-crud</name>
-    
+    <name>spring-boot-crud</name>
+
     <parent>
-        <artifactId>parent-boot-2</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-2</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../parent-boot-2</relativePath>
     </parent>
-    
+
     <dependencies>
         <dependency>
             <groupId>org.springframework.boot</groupId>
@@ -39,9 +39,9 @@
             <groupId>com.h2database</groupId>
             <artifactId>h2</artifactId>
             <scope>runtime</scope>
-        </dependency>    
+        </dependency>
     </dependencies>
-    
+
     <build>
         <finalName>spring-boot-crud</finalName>
         <resources>
@@ -54,11 +54,11 @@
             <plugin>
                 <groupId>org.springframework.boot</groupId>
                 <artifactId>spring-boot-maven-plugin</artifactId>
-		    <configuration>
-                        <classifier>exec</classifier>
-                    </configuration>
+                <configuration>
+                    <classifier>exec</classifier>
+                </configuration>
             </plugin>
-	    <plugin>
+            <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-assembly-plugin</artifactId>
                 <configuration>
@@ -75,12 +75,12 @@
                         </goals>
                     </execution>
                 </executions>
-            </plugin>	
+            </plugin>
         </plugins>
     </build>
-    
+
     <properties>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
     </properties>
-    
+
 </project>
diff --git a/spring-boot-ctx-fluent/pom.xml b/spring-boot-ctx-fluent/pom.xml
index b238374612..782e1fd7f6 100644
--- a/spring-boot-ctx-fluent/pom.xml
+++ b/spring-boot-ctx-fluent/pom.xml
@@ -1,15 +1,15 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
     xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung</groupId>
     <artifactId>spring-boot-ctx-fluent</artifactId>
     <version>0.0.1-SNAPSHOT</version>
 	<name>spring-boot-ctx-fluent</name>
     <packaging>jar</packaging>
 
     <parent>
-        <artifactId>parent-boot-2</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-2</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../parent-boot-2</relativePath>
     </parent>
diff --git a/spring-boot-custom-starter/greeter-library/pom.xml b/spring-boot-custom-starter/greeter-library/pom.xml
index 7e0c5c4d22..da30f2e4be 100644
--- a/spring-boot-custom-starter/greeter-library/pom.xml
+++ b/spring-boot-custom-starter/greeter-library/pom.xml
@@ -1,15 +1,16 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung</groupId>
     <artifactId>greeter-library</artifactId>
     <version>0.0.1-SNAPSHOT</version>
 	<name>greeter-library</name>
 	
     <parent>
-        <artifactId>spring-boot-custom-starter</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>spring-boot-custom-starter</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../../spring-boot-custom-starter</relativePath>
     </parent>
+
 </project>
\ No newline at end of file
diff --git a/spring-boot-custom-starter/greeter-spring-boot-autoconfigure/pom.xml b/spring-boot-custom-starter/greeter-spring-boot-autoconfigure/pom.xml
index 4fe92e8e45..58dd683131 100644
--- a/spring-boot-custom-starter/greeter-spring-boot-autoconfigure/pom.xml
+++ b/spring-boot-custom-starter/greeter-spring-boot-autoconfigure/pom.xml
@@ -1,14 +1,14 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung</groupId>
     <artifactId>greeter-spring-boot-autoconfigure</artifactId>
     <version>0.0.1-SNAPSHOT</version>
     <name>greeter-spring-boot-autoconfigure</name>
 
     <parent>
-        <artifactId>spring-boot-custom-starter</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>spring-boot-custom-starter</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../../spring-boot-custom-starter</relativePath>
     </parent>
@@ -39,7 +39,7 @@
             <version>${greeter.version}</version>
             <optional>true</optional>
         </dependency>
-        
+
         <dependency>
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-test</artifactId>
diff --git a/spring-boot-custom-starter/greeter-spring-boot-sample-app/pom.xml b/spring-boot-custom-starter/greeter-spring-boot-sample-app/pom.xml
index 1528853b0c..bb1e656963 100644
--- a/spring-boot-custom-starter/greeter-spring-boot-sample-app/pom.xml
+++ b/spring-boot-custom-starter/greeter-spring-boot-sample-app/pom.xml
@@ -1,14 +1,14 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
     xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung</groupId>
     <artifactId>greeter-spring-boot-sample-app</artifactId>
     <version>0.0.1-SNAPSHOT</version>
 	<name>greeter-spring-boot-sample-app</name>
 
     <parent>
-        <artifactId>parent-boot-1</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-1</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../../spring-boot-custom-starter</relativePath>
     </parent>
diff --git a/spring-boot-custom-starter/greeter-spring-boot-starter/pom.xml b/spring-boot-custom-starter/greeter-spring-boot-starter/pom.xml
index 560d6fa79b..d298756b8e 100644
--- a/spring-boot-custom-starter/greeter-spring-boot-starter/pom.xml
+++ b/spring-boot-custom-starter/greeter-spring-boot-starter/pom.xml
@@ -1,14 +1,14 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung</groupId>
     <artifactId>greeter-spring-boot-starter</artifactId>
     <version>0.0.1-SNAPSHOT</version>
 	<name>greeter-spring-boot-starter</name>
 
     <parent>
-        <artifactId>spring-boot-custom-starter</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>spring-boot-custom-starter</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../../spring-boot-custom-starter</relativePath>
     </parent>
diff --git a/spring-boot-custom-starter/greeter/pom.xml b/spring-boot-custom-starter/greeter/pom.xml
index 95fcaa66c8..3117cfa355 100644
--- a/spring-boot-custom-starter/greeter/pom.xml
+++ b/spring-boot-custom-starter/greeter/pom.xml
@@ -1,15 +1,16 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
     xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung</groupId>
     <artifactId>greeter</artifactId>
     <version>0.0.1-SNAPSHOT</version>
 	<name>greeter</name>
 	
     <parent>
-        <artifactId>parent-boot-1</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-1</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../../parent-boot-1</relativePath>
     </parent>
+    
 </project>
\ No newline at end of file
diff --git a/spring-boot-custom-starter/pom.xml b/spring-boot-custom-starter/pom.xml
index 9c03cfdd0e..96c0d0a585 100644
--- a/spring-boot-custom-starter/pom.xml
+++ b/spring-boot-custom-starter/pom.xml
@@ -1,10 +1,10 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung</groupId>
     <artifactId>spring-boot-custom-starter</artifactId>
     <version>0.0.1-SNAPSHOT</version>
-	<name>spring-boot-custom-starter</name>
+    <name>spring-boot-custom-starter</name>
     <packaging>pom</packaging>
 
     <parent>
@@ -19,6 +19,5 @@
         <module>greeter-spring-boot-starter</module>
         <module>greeter-spring-boot-sample-app</module>
     </modules>
-	
 
 </project>
\ No newline at end of file
diff --git a/spring-boot-data/pom.xml b/spring-boot-data/pom.xml
index 4c41eb8e3c..663ee640f3 100644
--- a/spring-boot-data/pom.xml
+++ b/spring-boot-data/pom.xml
@@ -3,13 +3,13 @@
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>spring-boot-data</artifactId>
-    <packaging>war</packaging>
     <name>spring-boot-data</name>
+    <packaging>war</packaging>
     <description>Spring Boot Data Module</description>
 
     <parent>
-        <artifactId>parent-boot-2</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-2</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../parent-boot-2</relativePath>
     </parent>
@@ -54,7 +54,7 @@
     </dependencies>
 
     <build>
-        <finalName>spring-boot</finalName>
+        <finalName>spring-boot-data</finalName>
         <resources>
             <resource>
                 <directory>src/main/resources</directory>
@@ -169,4 +169,5 @@
         <javers.version>5.6.3</javers.version>
         <git-commit-id-plugin.version>2.2.4</git-commit-id-plugin.version>
     </properties>
+    
 </project>
diff --git a/spring-boot-deployment/pom.xml b/spring-boot-deployment/pom.xml
index 69a54fd482..6f724f312b 100644
--- a/spring-boot-deployment/pom.xml
+++ b/spring-boot-deployment/pom.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>spring-boot-deployment</artifactId>
     <name>spring-boot-deployment</name>
@@ -8,8 +8,8 @@
     <description>Demo project for Spring Boot</description>
 
     <parent>
-        <artifactId>parent-boot-2</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-2</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../parent-boot-2</relativePath>
     </parent>
@@ -90,7 +90,7 @@
             <artifactId>spring-cloud-context</artifactId>
             <version>${springcloud.version}</version>
         </dependency>
-        
+
         <dependency>
             <groupId>org.apache.httpcomponents</groupId>
             <artifactId>httpclient</artifactId>
@@ -141,9 +141,9 @@
                         <configuration>
                             <!-- Skips integration tests if the value of skip.integration.tests 
                                 property is true -->
-                                <includes>
-                                        <include>**/ExternalPropertyFileLoaderIntegrationTest.java</include>
-                                    </includes>
+                            <includes>
+                                <include>**/ExternalPropertyFileLoaderIntegrationTest.java</include>
+                            </includes>
                         </configuration>
                     </execution>
                 </executions>
@@ -187,7 +187,7 @@
             </build>
         </profile>
     </profiles>
-    
+
     <properties>
         <!-- The main class to start by executing java -jar -->
         <start-class>org.baeldung.boot.Application</start-class>
diff --git a/spring-boot-di/pom.xml b/spring-boot-di/pom.xml
index 31ccff03da..61059630c4 100644
--- a/spring-boot-di/pom.xml
+++ b/spring-boot-di/pom.xml
@@ -1,64 +1,64 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0"
-	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
-	<modelVersion>4.0.0</modelVersion>
-	<artifactId>spring-boot-di</artifactId>
-	<name>spring-boot-di</name>
-	<packaging>jar</packaging>
-	<description>Module For Spring Boot DI</description>
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <artifactId>spring-boot-di</artifactId>
+    <name>spring-boot-di</name>
+    <packaging>jar</packaging>
+    <description>Module For Spring Boot DI</description>
 
-	<parent>
-		<artifactId>parent-boot-2</artifactId>
-		<groupId>com.baeldung</groupId>
-		<version>0.0.1-SNAPSHOT</version>
-		<relativePath>../parent-boot-2</relativePath>
-	</parent>
+    <parent>
+        <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-2</artifactId>
+        <version>0.0.1-SNAPSHOT</version>
+        <relativePath>../parent-boot-2</relativePath>
+    </parent>
 
-	<dependencies>
-		<dependency>
-			<groupId>org.aspectj</groupId>
-			<artifactId>aspectjweaver</artifactId>
-		</dependency>
+    <dependencies>
+        <dependency>
+            <groupId>org.aspectj</groupId>
+            <artifactId>aspectjweaver</artifactId>
+        </dependency>
 
-		<dependency>
-			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-starter-web</artifactId>
-		</dependency>
-		<dependency>
-			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-starter-tomcat</artifactId>
-			<scope>provided</scope>
-		</dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-web</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-tomcat</artifactId>
+            <scope>provided</scope>
+        </dependency>
 
-		<dependency>
-			<groupId>org.apache.tomcat.embed</groupId>
-			<artifactId>tomcat-embed-jasper</artifactId>
-			<scope>provided</scope>
-		</dependency>
-		<dependency>
+        <dependency>
+            <groupId>org.apache.tomcat.embed</groupId>
+            <artifactId>tomcat-embed-jasper</artifactId>
+            <scope>provided</scope>
+        </dependency>
+        <dependency>
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-test</artifactId>
             <scope>test</scope>
         </dependency>
 
-	</dependencies>
+    </dependencies>
 
-	<build>
-		<plugins>
-			<plugin>
-				<groupId>org.springframework.boot</groupId>
-				<artifactId>spring-boot-maven-plugin</artifactId>
-				<configuration>
-					<mainClass>com.baeldung.SpringBootDiApplication</mainClass>
-					<layout>JAR</layout>
-				</configuration>
-			</plugin>
-		</plugins>
-	</build>
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.springframework.boot</groupId>
+                <artifactId>spring-boot-maven-plugin</artifactId>
+                <configuration>
+                    <mainClass>com.baeldung.SpringBootDiApplication</mainClass>
+                    <layout>JAR</layout>
+                </configuration>
+            </plugin>
+        </plugins>
+    </build>
 
-	<properties>
-		<start-class>com.baeldung.SpringBootDiApplication</start-class>
-	</properties>
+    <properties>
+        <start-class>com.baeldung.SpringBootDiApplication</start-class>
+    </properties>
 
 </project>
diff --git a/spring-boot-environment/pom.xml b/spring-boot-environment/pom.xml
index 4e4a363fee..531ef697d7 100644
--- a/spring-boot-environment/pom.xml
+++ b/spring-boot-environment/pom.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>spring-boot-environment</artifactId>
     <name>spring-boot-environment</name>
@@ -8,8 +8,8 @@
     <description>Demo project for Spring Boot</description>
 
     <parent>
-        <artifactId>parent-boot-2</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-2</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../parent-boot-2</relativePath>
     </parent>
@@ -78,7 +78,7 @@
             <artifactId>spring-cloud-context</artifactId>
             <version>${springcloud.version}</version>
         </dependency>
-        
+
         <dependency>
             <groupId>org.apache.httpcomponents</groupId>
             <artifactId>httpclient</artifactId>
@@ -136,7 +136,7 @@
             </build>
         </profile>
     </profiles>
-    
+
     <properties>
         <jpa.version>2.2</jpa.version>
         <guava.version>18.0</guava.version>
diff --git a/spring-boot-flowable/pom.xml b/spring-boot-flowable/pom.xml
index f7fc943389..96558b8595 100644
--- a/spring-boot-flowable/pom.xml
+++ b/spring-boot-flowable/pom.xml
@@ -1,62 +1,62 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0"
-	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
-	<modelVersion>4.0.0</modelVersion>
-	<artifactId>spring-boot-flowable</artifactId>
-	<packaging>war</packaging>
-	<name>spring-boot-flowable</name>
-	<description>Spring Boot Flowable Module</description>
-	
-	<parent>
-		<artifactId>parent-boot-2</artifactId>
-		<groupId>com.baeldung</groupId>
-		<version>0.0.1-SNAPSHOT</version>
-		<relativePath>../parent-boot-2</relativePath>
-	</parent>
-	
-	<dependencies>
-		<dependency>
-			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-starter-web</artifactId>
-		</dependency>
-		<dependency>
-			<groupId>com.h2database</groupId>
-			<artifactId>h2</artifactId>
-			<scope>runtime</scope>
-		</dependency>
-		<dependency>
-			<groupId>org.flowable</groupId>
-			<artifactId>flowable-spring-boot-starter-rest</artifactId>
-			<version>${flowable.version}</version>
-		</dependency>
-		<dependency>
-			<groupId>org.flowable</groupId>
-			<artifactId>flowable-spring-boot-starter-actuator</artifactId>
-			<version>${flowable.version}</version>
-		</dependency>
-		<dependency>
-			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-starter-test</artifactId>
-			<scope>test</scope>
-		</dependency>
-		<dependency>
-			<groupId>org.junit.jupiter</groupId>
-			<artifactId>junit-jupiter-engine</artifactId>
-			<scope>test</scope>
-		</dependency>
-	</dependencies>
-	
-	<build>
-		<plugins>
-			<plugin>
-				<groupId>org.springframework.boot</groupId>
-				<artifactId>spring-boot-maven-plugin</artifactId>
-			</plugin>
-		</plugins>
-	</build>
-	
-	<properties>
-		<flowable.version>6.4.1</flowable.version>
-	</properties>
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <artifactId>spring-boot-flowable</artifactId>
+    <name>spring-boot-flowable</name>
+    <packaging>war</packaging>
+    <description>Spring Boot Flowable Module</description>
+
+    <parent>
+        <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-2</artifactId>
+        <version>0.0.1-SNAPSHOT</version>
+        <relativePath>../parent-boot-2</relativePath>
+    </parent>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-web</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>com.h2database</groupId>
+            <artifactId>h2</artifactId>
+            <scope>runtime</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.flowable</groupId>
+            <artifactId>flowable-spring-boot-starter-rest</artifactId>
+            <version>${flowable.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.flowable</groupId>
+            <artifactId>flowable-spring-boot-starter-actuator</artifactId>
+            <version>${flowable.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-test</artifactId>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.junit.jupiter</groupId>
+            <artifactId>junit-jupiter-engine</artifactId>
+            <scope>test</scope>
+        </dependency>
+    </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.springframework.boot</groupId>
+                <artifactId>spring-boot-maven-plugin</artifactId>
+            </plugin>
+        </plugins>
+    </build>
+
+    <properties>
+        <flowable.version>6.4.1</flowable.version>
+    </properties>
 </project>
\ No newline at end of file
diff --git a/spring-boot-jasypt/pom.xml b/spring-boot-jasypt/pom.xml
index ae0483f107..76a501c455 100644
--- a/spring-boot-jasypt/pom.xml
+++ b/spring-boot-jasypt/pom.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <groupId>com.example.jasypt</groupId>
     <artifactId>spring-boot-jasypt</artifactId>
@@ -9,8 +9,8 @@
     <description>Demo project for Spring Boot</description>
 
     <parent>
-        <artifactId>parent-boot-2</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-2</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../parent-boot-2</relativePath>
     </parent>
diff --git a/spring-boot-keycloak/pom.xml b/spring-boot-keycloak/pom.xml
index b13805b4bf..609b4d1dec 100644
--- a/spring-boot-keycloak/pom.xml
+++ b/spring-boot-keycloak/pom.xml
@@ -1,13 +1,13 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <groupId>com.baeldung.keycloak</groupId>
     <artifactId>spring-boot-keycloak</artifactId>
     <version>0.0.1</version>
     <name>spring-boot-keycloak</name>
-    <description>This is a simple application demonstrating integration between Keycloak and Spring Boot.</description>
     <packaging>jar</packaging>
+    <description>This is a simple application demonstrating integration between Keycloak and Spring Boot.</description>
 
     <parent>
         <groupId>com.baeldung</groupId>
@@ -16,6 +16,18 @@
         <relativePath>../parent-boot-1</relativePath>
     </parent>
 
+    <dependencyManagement>
+        <dependencies>
+            <dependency>
+                <groupId>org.keycloak.bom</groupId>
+                <artifactId>keycloak-adapter-bom</artifactId>
+                <version>${keycloak-adapter-bom.version}</version>
+                <type>pom</type>
+                <scope>import</scope>
+            </dependency>
+        </dependencies>
+    </dependencyManagement>
+
     <dependencies>
         <dependency>
             <groupId>org.springframework.boot</groupId>
@@ -53,17 +65,6 @@
             <artifactId>spring-boot-starter-thymeleaf</artifactId>
         </dependency>
     </dependencies>
-    <dependencyManagement>
-        <dependencies>
-            <dependency>
-                <groupId>org.keycloak.bom</groupId>
-                <artifactId>keycloak-adapter-bom</artifactId>
-                <version>${keycloak-adapter-bom.version}</version>
-                <type>pom</type>
-                <scope>import</scope>
-            </dependency>
-        </dependencies>
-    </dependencyManagement>
 
     <build>
         <plugins>
diff --git a/spring-boot-kotlin/pom.xml b/spring-boot-kotlin/pom.xml
index ccb1585a75..a98d76a398 100644
--- a/spring-boot-kotlin/pom.xml
+++ b/spring-boot-kotlin/pom.xml
@@ -8,8 +8,8 @@
     <description>Demo project showing how to use non-blocking in Kotlin with Spring Boot</description>
 
     <parent>
-        <artifactId>parent-kotlin</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-kotlin</artifactId>
         <version>1.0.0-SNAPSHOT</version>
         <relativePath>../parent-kotlin</relativePath>
     </parent>
diff --git a/spring-boot-libraries/pom.xml b/spring-boot-libraries/pom.xml
index b448d6fd66..d9c9073542 100644
--- a/spring-boot-libraries/pom.xml
+++ b/spring-boot-libraries/pom.xml
@@ -1,157 +1,158 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0"
-	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
-	<modelVersion>4.0.0</modelVersion>
-	<artifactId>spring-boot-libraries</artifactId>
-	<name>spring-boot-libraries</name>
-	<packaging>war</packaging>
-	<description>This is simple boot application for Spring boot actuator test</description>
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <artifactId>spring-boot-libraries</artifactId>
+    <name>spring-boot-libraries</name>
+    <packaging>war</packaging>
+    <description>This is simple boot application for Spring boot actuator test</description>
 
-	<parent>
-		<artifactId>parent-boot-2</artifactId>
-		<groupId>com.baeldung</groupId>
-		<version>0.0.1-SNAPSHOT</version>
-		<relativePath>../parent-boot-2</relativePath>
-	</parent>
+    <parent>
+        <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-2</artifactId>
+        <version>0.0.1-SNAPSHOT</version>
+        <relativePath>../parent-boot-2</relativePath>
+    </parent>
 
-	<dependencies>
-		<dependency>
-			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-starter-web</artifactId>
-		</dependency>
-		<dependency>
-			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-starter-security</artifactId>
-		</dependency>
-		<dependency>
-			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-starter-tomcat</artifactId>
-		</dependency>
-		<dependency>
-			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-starter-test</artifactId>
-			<scope>test</scope>
-		</dependency>
-	
-		<!-- Problem Spring Web -->
-		<dependency>
-			<groupId>org.zalando</groupId>
-			<artifactId>problem-spring-web</artifactId>
-			<version>${problem-spring-web.version}</version>
-		</dependency>
+    <dependencies>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-web</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-security</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-tomcat</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-test</artifactId>
+            <scope>test</scope>
+        </dependency>
 
-		<!-- ShedLock -->
-		<dependency>
-			<groupId>net.javacrumbs.shedlock</groupId>
-			<artifactId>shedlock-spring</artifactId>
-			<version>${shedlock.version}</version>
-		</dependency>
-		<dependency>
-			<groupId>net.javacrumbs.shedlock</groupId>
-			<artifactId>shedlock-provider-jdbc-template</artifactId>
-			<version>${shedlock.version}</version>
-		</dependency>
+        <!-- Problem Spring Web -->
+        <dependency>
+            <groupId>org.zalando</groupId>
+            <artifactId>problem-spring-web</artifactId>
+            <version>${problem-spring-web.version}</version>
+        </dependency>
 
-	</dependencies>
+        <!-- ShedLock -->
+        <dependency>
+            <groupId>net.javacrumbs.shedlock</groupId>
+            <artifactId>shedlock-spring</artifactId>
+            <version>${shedlock.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>net.javacrumbs.shedlock</groupId>
+            <artifactId>shedlock-provider-jdbc-template</artifactId>
+            <version>${shedlock.version}</version>
+        </dependency>
 
-	<build>
-		<finalName>spring-boot</finalName>
-		<resources>
-			<resource>
-				<directory>src/main/resources</directory>
-				<filtering>true</filtering>
-			</resource>
-		</resources>
+    </dependencies>
 
-		<plugins>
+    <build>
+        <finalName>spring-boot-libraries</finalName>
+        <resources>
+            <resource>
+                <directory>src/main/resources</directory>
+                <filtering>true</filtering>
+            </resource>
+        </resources>
 
-			<plugin>
-				<groupId>org.apache.maven.plugins</groupId>
-				<artifactId>maven-war-plugin</artifactId>
-			</plugin>
+        <plugins>
 
-			<plugin>
-				<groupId>pl.project13.maven</groupId>
-				<artifactId>git-commit-id-plugin</artifactId>
-				<version>${git-commit-id-plugin.version}</version>
-				<executions>
-					<execution>
-						<id>get-the-git-infos</id>
-						<goals>
-							<goal>revision</goal>
-						</goals>
-						<phase>initialize</phase>
-					</execution>
-					<execution>
-						<id>validate-the-git-infos</id>
-						<goals>
-							<goal>validateRevision</goal>
-						</goals>
-						<phase>package</phase>
-					</execution>
-				</executions>
-				<configuration>
-					<generateGitPropertiesFile>true</generateGitPropertiesFile>
-					<generateGitPropertiesFilename>${project.build.outputDirectory}/git.properties</generateGitPropertiesFilename>
-				</configuration>
-			</plugin>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-war-plugin</artifactId>
+            </plugin>
 
-		</plugins>
+            <plugin>
+                <groupId>pl.project13.maven</groupId>
+                <artifactId>git-commit-id-plugin</artifactId>
+                <version>${git-commit-id-plugin.version}</version>
+                <executions>
+                    <execution>
+                        <id>get-the-git-infos</id>
+                        <goals>
+                            <goal>revision</goal>
+                        </goals>
+                        <phase>initialize</phase>
+                    </execution>
+                    <execution>
+                        <id>validate-the-git-infos</id>
+                        <goals>
+                            <goal>validateRevision</goal>
+                        </goals>
+                        <phase>package</phase>
+                    </execution>
+                </executions>
+                <configuration>
+                    <generateGitPropertiesFile>true</generateGitPropertiesFile>
+                    <generateGitPropertiesFilename>${project.build.outputDirectory}/git.properties</generateGitPropertiesFilename>
+                </configuration>
+            </plugin>
 
-	</build>
+        </plugins>
 
-	<profiles>
-		<profile>
-			<id>autoconfiguration</id>
-			<build>
-				<plugins>
-					<plugin>
-						<groupId>org.apache.maven.plugins</groupId>
-						<artifactId>maven-surefire-plugin</artifactId>
-						<executions>
-							<execution>
-								<phase>integration-test</phase>
-								<goals>
-									<goal>test</goal>
-								</goals>
-								<configuration>
-									<excludes>
-										<exclude>**/*LiveTest.java</exclude>
-										<exclude>**/*IntegrationTest.java</exclude>
-										<exclude>**/*IntTest.java</exclude>
-									</excludes>
-									<includes>
-										<include>**/AutoconfigurationTest.java</include>
-									</includes>
-								</configuration>
-							</execution>
-						</executions>
-						<configuration>
-							<systemPropertyVariables>
-								<test.mime>json</test.mime>
-							</systemPropertyVariables>
-						</configuration>
-					</plugin>
-				</plugins>
-			</build>
-		</profile>
-	</profiles>
+    </build>
 
-	<properties>
-		<!-- The main class to start by executing java -jar -->
-		<start-class>com.baeldung.intro.App</start-class>
-		<tomee-servlet-api.version>8.5.11</tomee-servlet-api.version>
-		<togglz.version>2.4.1.Final</togglz.version>
-		<rome.version>1.9.0</rome.version>
-		<chaos.monkey.version>2.0.0</chaos.monkey.version>
-		<graphql-spring-boot-starter.version>5.0.2</graphql-spring-boot-starter.version>
-		<graphiql-spring-boot-starter.version>5.0.2</graphiql-spring-boot-starter.version>
-		<graphql-java-tools.version>5.2.4</graphql-java-tools.version>
-		<guava.version>18.0</guava.version>
-		<git-commit-id-plugin.version>2.2.4</git-commit-id-plugin.version>
-		<modelmapper.version>2.3.2</modelmapper.version>
-		<problem-spring-web.version>0.23.0</problem-spring-web.version>
-		<shedlock.version>2.1.0</shedlock.version>
-	</properties>
+    <profiles>
+        <profile>
+            <id>autoconfiguration</id>
+            <build>
+                <plugins>
+                    <plugin>
+                        <groupId>org.apache.maven.plugins</groupId>
+                        <artifactId>maven-surefire-plugin</artifactId>
+                        <executions>
+                            <execution>
+                                <phase>integration-test</phase>
+                                <goals>
+                                    <goal>test</goal>
+                                </goals>
+                                <configuration>
+                                    <excludes>
+                                        <exclude>**/*LiveTest.java</exclude>
+                                        <exclude>**/*IntegrationTest.java</exclude>
+                                        <exclude>**/*IntTest.java</exclude>
+                                    </excludes>
+                                    <includes>
+                                        <include>**/AutoconfigurationTest.java</include>
+                                    </includes>
+                                </configuration>
+                            </execution>
+                        </executions>
+                        <configuration>
+                            <systemPropertyVariables>
+                                <test.mime>json</test.mime>
+                            </systemPropertyVariables>
+                        </configuration>
+                    </plugin>
+                </plugins>
+            </build>
+        </profile>
+    </profiles>
+
+    <properties>
+        <!-- The main class to start by executing java -jar -->
+        <start-class>com.baeldung.intro.App</start-class>
+        <tomee-servlet-api.version>8.5.11</tomee-servlet-api.version>
+        <togglz.version>2.4.1.Final</togglz.version>
+        <rome.version>1.9.0</rome.version>
+        <chaos.monkey.version>2.0.0</chaos.monkey.version>
+        <graphql-spring-boot-starter.version>5.0.2</graphql-spring-boot-starter.version>
+        <graphiql-spring-boot-starter.version>5.0.2</graphiql-spring-boot-starter.version>
+        <graphql-java-tools.version>5.2.4</graphql-java-tools.version>
+        <guava.version>18.0</guava.version>
+        <git-commit-id-plugin.version>2.2.4</git-commit-id-plugin.version>
+        <modelmapper.version>2.3.2</modelmapper.version>
+        <problem-spring-web.version>0.23.0</problem-spring-web.version>
+        <shedlock.version>2.1.0</shedlock.version>
+    </properties>
 
 </project>
diff --git a/spring-boot-logging-log4j2/pom.xml b/spring-boot-logging-log4j2/pom.xml
index 0bc8c2dd08..a7065bc925 100644
--- a/spring-boot-logging-log4j2/pom.xml
+++ b/spring-boot-logging-log4j2/pom.xml
@@ -1,17 +1,17 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>spring-boot-logging-log4j2</artifactId>
-	<name>spring-boot-logging-log4j2</name>
+    <name>spring-boot-logging-log4j2</name>
     <packaging>jar</packaging>
     <description>Demo project for Spring Boot Logging with Log4J2</description>
 
-	<!-- this needs to use the boot parent directly in order to not inherit logback dependencies -->
-	
+    <!-- this needs to use the boot parent directly in order to not inherit logback dependencies -->
+
     <parent>
-        <artifactId>spring-boot-starter-parent</artifactId>
         <groupId>org.springframework.boot</groupId>
+        <artifactId>spring-boot-starter-parent</artifactId>
         <version>2.2.1.RELEASE</version>
     </parent>
 
@@ -35,12 +35,12 @@
             <artifactId>spring-boot-starter-log4j2</artifactId>
         </dependency>
         <dependency>
-        	<groupId>org.projectlombok</groupId>
-        	<artifactId>lombok</artifactId>
-        	<version>${lombok.version}</version>
-        	<scope>provided</scope>
-    	</dependency>
-        
+            <groupId>org.projectlombok</groupId>
+            <artifactId>lombok</artifactId>
+            <version>${lombok.version}</version>
+            <scope>provided</scope>
+        </dependency>
+
         <!-- for Graylog demo -->
         <dependency>
             <!-- forcing spring boot 1.x sing log4j was dropped in spring boot 1.4 and beyond -->
@@ -55,30 +55,31 @@
             <scope>compile</scope>
         </dependency>
     </dependencies>
-    
+
     <build>
-		<plugins>
-			<plugin>
-				<groupId>org.apache.maven.plugins</groupId>
-				<artifactId>maven-surefire-plugin</artifactId>
-				<configuration>
-					<forkCount>3</forkCount>
-					<reuseForks>true</reuseForks>
-					<excludes>
-						<exclude>**/*IntegrationTest.java</exclude>
-						<exclude>**/*IntTest.java</exclude>
-						<exclude>**/*ManualTest.java</exclude>
-						<exclude>**/*LiveTest.java</exclude>
-					</excludes>
-				</configuration>
-			</plugin>
-    	</plugins>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-surefire-plugin</artifactId>
+                <configuration>
+                    <forkCount>3</forkCount>
+                    <reuseForks>true</reuseForks>
+                    <excludes>
+                        <exclude>**/*IntegrationTest.java</exclude>
+                        <exclude>**/*IntTest.java</exclude>
+                        <exclude>**/*ManualTest.java</exclude>
+                        <exclude>**/*LiveTest.java</exclude>
+                    </excludes>
+                </configuration>
+            </plugin>
+        </plugins>
     </build>
-    
+
     <properties>
         <start-class>com.baeldung.springbootlogging.SpringBootLoggingApplication</start-class>
-		<spring-boot-starter-log4j.version>1.3.8.RELEASE</spring-boot-starter-log4j.version>
-		<gelfj.version>1.1.16</gelfj.version>
-		<lombok.version>1.18.4</lombok.version>
+        <spring-boot-starter-log4j.version>1.3.8.RELEASE</spring-boot-starter-log4j.version>
+        <gelfj.version>1.1.16</gelfj.version>
+        <lombok.version>1.18.4</lombok.version>
     </properties>
+
 </project>
diff --git a/spring-boot-mvc-2/pom.xml b/spring-boot-mvc-2/pom.xml
index 18121325a5..e6538c4418 100644
--- a/spring-boot-mvc-2/pom.xml
+++ b/spring-boot-mvc-2/pom.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0"
-    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>spring-boot-mvc-2</artifactId>
     <name>spring-boot-mvc-2</name>
@@ -12,7 +12,7 @@
         <groupId>org.springframework.boot</groupId>
         <artifactId>spring-boot-starter-parent</artifactId>
         <version>2.2.0.BUILD-SNAPSHOT</version>
-        <relativePath /> <!-- lookup parent from repository -->
+        <relativePath/> <!-- lookup parent from repository -->
     </parent>
 
     <dependencies>
@@ -50,6 +50,7 @@
             <url>https://repo.spring.io/milestone</url>
         </repository>
     </repositories>
+
     <pluginRepositories>
         <pluginRepository>
             <id>spring-snapshots</id>
@@ -65,4 +66,5 @@
             <url>https://repo.spring.io/milestone</url>
         </pluginRepository>
     </pluginRepositories>
+
 </project>
\ No newline at end of file
diff --git a/spring-boot-mvc-birt/pom.xml b/spring-boot-mvc-birt/pom.xml
index 3532b20c15..76760e661b 100644
--- a/spring-boot-mvc-birt/pom.xml
+++ b/spring-boot-mvc-birt/pom.xml
@@ -1,18 +1,17 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0"
-    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung</groupId>
     <artifactId>spring-boot-mvc-birt</artifactId>
-    <name>spring-boot-mvc-birt</name>
     <version>0.0.1-SNAPSHOT</version>
+    <name>spring-boot-mvc-birt</name>
     <packaging>jar</packaging>
     <description>Module For Spring Boot Integration with BIRT</description>
 
     <parent>
-        <artifactId>parent-boot-2</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-2</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../parent-boot-2</relativePath>
     </parent>
diff --git a/spring-boot-mvc/pom.xml b/spring-boot-mvc/pom.xml
index a414ed7bb2..617bc4c293 100644
--- a/spring-boot-mvc/pom.xml
+++ b/spring-boot-mvc/pom.xml
@@ -9,8 +9,8 @@
     <description>Module For Spring Boot MVC</description>
 
     <parent>
-        <artifactId>parent-boot-2</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-2</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../parent-boot-2</relativePath>
     </parent>
diff --git a/spring-boot-nashorn/pom.xml b/spring-boot-nashorn/pom.xml
index 0f43752993..af11f14fdc 100644
--- a/spring-boot-nashorn/pom.xml
+++ b/spring-boot-nashorn/pom.xml
@@ -1,17 +1,17 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0"
-    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <groupId>com.baeldung.nashorn</groupId>
     <artifactId>spring-boot-nashorn</artifactId>
-    <name>spring-boot-nashorn</name>
     <version>1.0</version>
+    <name>spring-boot-nashorn</name>
     <packaging>jar</packaging>
 
     <parent>
-        <artifactId>parent-boot-2</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-2</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../parent-boot-2</relativePath>
     </parent>
@@ -48,4 +48,5 @@
             </plugin>
         </plugins>
     </build>
+    
 </project>
\ No newline at end of file
diff --git a/spring-boot-parent/pom.xml b/spring-boot-parent/pom.xml
index 0924917505..7ce5bdc428 100644
--- a/spring-boot-parent/pom.xml
+++ b/spring-boot-parent/pom.xml
@@ -1,15 +1,13 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0"
-    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
-
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung</groupId>
     <artifactId>spring-boot-parent</artifactId>
     <version>1.0.0-SNAPSHOT</version>
     <name>spring-boot-parent</name>
-    <description>spring-boot-parent</description>
     <packaging>pom</packaging>
+    <description>spring-boot-parent</description>
 
     <parent>
         <groupId>com.baeldung</groupId>
diff --git a/spring-boot-parent/spring-boot-with-custom-parent/pom.xml b/spring-boot-parent/spring-boot-with-custom-parent/pom.xml
index a64ebc246a..8a55f252d6 100644
--- a/spring-boot-parent/spring-boot-with-custom-parent/pom.xml
+++ b/spring-boot-parent/spring-boot-with-custom-parent/pom.xml
@@ -1,8 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0"
-    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
-
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>spring-boot-with-custom-parent</artifactId>
     <version>1.0.0-SNAPSHOT</version>
diff --git a/spring-boot-parent/spring-boot-with-starter-parent/pom.xml b/spring-boot-parent/spring-boot-with-starter-parent/pom.xml
index 1c6479ca60..9ea26e49fe 100644
--- a/spring-boot-parent/spring-boot-with-starter-parent/pom.xml
+++ b/spring-boot-parent/spring-boot-with-starter-parent/pom.xml
@@ -1,8 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0"
-    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
-
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <groupId>com.baeldung</groupId>
     <artifactId>spring-boot-with-starter-parent</artifactId>
diff --git a/spring-boot-performance/pom.xml b/spring-boot-performance/pom.xml
index a4efa4a8d7..7bf3885618 100644
--- a/spring-boot-performance/pom.xml
+++ b/spring-boot-performance/pom.xml
@@ -8,8 +8,8 @@
     <description>This is a simple Spring Boot application taking advantage of the latest Spring Boot improvements/features. Current version: 2.2</description>
 
     <parent>
-        <artifactId>parent-boot-2</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-2</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../parent-boot-2</relativePath>
     </parent>
diff --git a/spring-boot-properties/pom.xml b/spring-boot-properties/pom.xml
index 5e65aadc28..705a0eb786 100644
--- a/spring-boot-properties/pom.xml
+++ b/spring-boot-properties/pom.xml
@@ -3,13 +3,13 @@
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>spring-boot-properties</artifactId>
-    <packaging>jar</packaging>
     <name>spring-boot-properties</name>
+    <packaging>jar</packaging>
     <description>Spring Boot Properties Module</description>
 
     <parent>
-        <artifactId>parent-boot-2</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-2</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../parent-boot-2</relativePath>
     </parent>
diff --git a/spring-boot-property-exp/pom.xml b/spring-boot-property-exp/pom.xml
index 7d8f2480ac..b16fcd1c22 100644
--- a/spring-boot-property-exp/pom.xml
+++ b/spring-boot-property-exp/pom.xml
@@ -1,15 +1,15 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <name>spring-boot-property-exp</name>
-    <groupId>com.baeldung</groupId>
     <artifactId>spring-boot-property-exp</artifactId>
     <version>0.0.1-SNAPSHOT</version>
     <packaging>pom</packaging>
 
     <parent>
-        <artifactId>parent-modules</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-modules</artifactId>
         <version>1.0.0-SNAPSHOT</version>
     </parent>
 
diff --git a/spring-boot-property-exp/property-exp-custom-config/pom.xml b/spring-boot-property-exp/property-exp-custom-config/pom.xml
index 9988924408..f9c3d6ef62 100644
--- a/spring-boot-property-exp/property-exp-custom-config/pom.xml
+++ b/spring-boot-property-exp/property-exp-custom-config/pom.xml
@@ -1,15 +1,15 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung</groupId>
     <artifactId>property-exp-custom-config</artifactId>
     <version>0.0.1-SNAPSHOT</version>
-	<name>property-exp-custom-config</name>
+    <name>property-exp-custom-config</name>
     <packaging>jar</packaging>
 
     <parent>
-        <artifactId>spring-boot-property-exp</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>spring-boot-property-exp</artifactId>
         <version>0.0.1-SNAPSHOT</version>
     </parent>
 
@@ -26,7 +26,6 @@
             <scope>test</scope>
         </dependency>
     </dependencies>
-    
 
     <build>
         <resources>
diff --git a/spring-boot-property-exp/property-exp-default-config/pom.xml b/spring-boot-property-exp/property-exp-default-config/pom.xml
index 7892288f45..9cb1de33f6 100644
--- a/spring-boot-property-exp/property-exp-default-config/pom.xml
+++ b/spring-boot-property-exp/property-exp-default-config/pom.xml
@@ -1,15 +1,15 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung</groupId>
     <artifactId>property-exp-default-config</artifactId>
     <version>0.0.1-SNAPSHOT</version>
-	<name>property-exp-default-config</name>
+    <name>property-exp-default-config</name>
     <packaging>jar</packaging>
 
     <parent>
-        <artifactId>parent-boot-1</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-1</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../../parent-boot-1</relativePath>
     </parent>
diff --git a/spring-boot-rest/pom.xml b/spring-boot-rest/pom.xml
index 598b589ea0..57014381d8 100644
--- a/spring-boot-rest/pom.xml
+++ b/spring-boot-rest/pom.xml
@@ -1,17 +1,17 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0"
-    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <groupId>com.baeldung.web</groupId>
     <artifactId>spring-boot-rest</artifactId>
     <name>spring-boot-rest</name>
-    <description>Spring Boot Rest Module</description>
     <packaging>war</packaging>
+    <description>Spring Boot Rest Module</description>
 
     <parent>
-        <artifactId>parent-boot-2</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-2</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../parent-boot-2</relativePath>
     </parent>
@@ -44,7 +44,7 @@
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-data-jpa</artifactId>
         </dependency>
-        
+
         <!-- Spring HATEOAS -->
         <dependency>
             <groupId>org.springframework.boot</groupId>
@@ -91,4 +91,5 @@
         <xstream.version>1.4.11.1</xstream.version>
         <modelmapper.version>2.3.3</modelmapper.version>
     </properties>
+    
 </project>
diff --git a/spring-boot-runtime/disabling-console-jul/pom.xml b/spring-boot-runtime/disabling-console-jul/pom.xml
index f6f7890df1..2dc1a834b6 100644
--- a/spring-boot-runtime/disabling-console-jul/pom.xml
+++ b/spring-boot-runtime/disabling-console-jul/pom.xml
@@ -1,11 +1,12 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>disabling-console-jul</artifactId>
-	<name>disabling-console-jul</name>
-	<!-- this needs to use the boot parent directly in order to not inherit logback dependencies -->
-	
-	<parent>
+    <name>disabling-console-jul</name>
+    <!-- this needs to use the boot parent directly in order to not inherit logback dependencies -->
+
+    <parent>
         <groupId>org.springframework.boot</groupId>
         <artifactId>spring-boot-starter-parent</artifactId>
         <version>2.1.1.RELEASE</version>
diff --git a/spring-boot-runtime/disabling-console-log4j2/pom.xml b/spring-boot-runtime/disabling-console-log4j2/pom.xml
index 1cf3eb3e68..b743c4bdac 100644
--- a/spring-boot-runtime/disabling-console-log4j2/pom.xml
+++ b/spring-boot-runtime/disabling-console-log4j2/pom.xml
@@ -1,44 +1,45 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
-	<modelVersion>4.0.0</modelVersion>
-	<artifactId>disabling-console-log4j2</artifactId>
-	<name>disabling-console-log4j2</name>
-	<!-- this needs to use the boot parent directly in order to not inherit logback dependencies -->
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <artifactId>disabling-console-log4j2</artifactId>
+    <name>disabling-console-log4j2</name>
+    <!-- this needs to use the boot parent directly in order to not inherit logback dependencies -->
 
-	<parent>
+    <parent>
         <groupId>org.springframework.boot</groupId>
         <artifactId>spring-boot-starter-parent</artifactId>
         <version>2.1.1.RELEASE</version>
     </parent>
 
-	<dependencies>
-		<dependency>
-			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-starter-web</artifactId>
-		</dependency>
-		<dependency>
-			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-starter</artifactId>
-			<exclusions>
-				<exclusion>
-					<groupId>org.springframework.boot</groupId>
-					<artifactId>spring-boot-starter-logging</artifactId>
-				</exclusion>
-			</exclusions>
-		</dependency>
-		<dependency>
-			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-starter-log4j2</artifactId>
-		</dependency>
-	</dependencies>
+    <dependencies>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-web</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter</artifactId>
+            <exclusions>
+                <exclusion>
+                    <groupId>org.springframework.boot</groupId>
+                    <artifactId>spring-boot-starter-logging</artifactId>
+                </exclusion>
+            </exclusions>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-log4j2</artifactId>
+        </dependency>
+    </dependencies>
 
-	<build>
-		<plugins>
-			<plugin>
-				<groupId>org.springframework.boot</groupId>
-				<artifactId>spring-boot-maven-plugin</artifactId>
-			</plugin>
-		</plugins>
-	</build>
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.springframework.boot</groupId>
+                <artifactId>spring-boot-maven-plugin</artifactId>
+            </plugin>
+        </plugins>
+    </build>
 
 </project>
\ No newline at end of file
diff --git a/spring-boot-runtime/disabling-console-logback/pom.xml b/spring-boot-runtime/disabling-console-logback/pom.xml
index 4b64885c66..1a415328b6 100644
--- a/spring-boot-runtime/disabling-console-logback/pom.xml
+++ b/spring-boot-runtime/disabling-console-logback/pom.xml
@@ -1,13 +1,14 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0"
-    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>disabling-console-logback</artifactId>
     <name>disabling-console-logback</name>
 
     <parent>
-        <artifactId>spring-boot-disable-console-logging</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>spring-boot-disable-console-logging</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../</relativePath>
     </parent>
diff --git a/spring-boot-runtime/pom.xml b/spring-boot-runtime/pom.xml
index 772fd20d9e..baa7faebf8 100644
--- a/spring-boot-runtime/pom.xml
+++ b/spring-boot-runtime/pom.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>spring-boot-runtime</artifactId>
     <name>spring-boot-runtime</name>
@@ -8,8 +8,8 @@
     <description>Demo project for Spring Boot</description>
 
     <parent>
-        <artifactId>parent-boot-2</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-2</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../parent-boot-2</relativePath>
     </parent>
@@ -98,7 +98,7 @@
             <artifactId>spring-cloud-context</artifactId>
             <version>${springcloud.version}</version>
         </dependency>
-        
+
         <dependency>
             <groupId>org.apache.httpcomponents</groupId>
             <artifactId>httpclient</artifactId>
@@ -156,7 +156,7 @@
             </build>
         </profile>
     </profiles>
-    
+
     <properties>
         <jpa.version>2.2</jpa.version>
         <guava.version>18.0</guava.version>
diff --git a/spring-boot-security/pom.xml b/spring-boot-security/pom.xml
index 79a77775de..62c04b4dc3 100644
--- a/spring-boot-security/pom.xml
+++ b/spring-boot-security/pom.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>spring-boot-security</artifactId>
     <name>spring-boot-security</name>
@@ -8,8 +8,8 @@
     <packaging>jar</packaging>
 
     <parent>
-        <artifactId>parent-boot-2</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-2</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../parent-boot-2</relativePath>
     </parent>
@@ -25,9 +25,9 @@
             <version>2.3.3.RELEASE</version>
         </dependency>
         <dependency>
-    	  <groupId>org.springframework.security.oauth.boot</groupId>
-    	  <artifactId>spring-security-oauth2-autoconfigure</artifactId>
-    	  <version>2.1.2.RELEASE</version>
+            <groupId>org.springframework.security.oauth.boot</groupId>
+            <artifactId>spring-security-oauth2-autoconfigure</artifactId>
+            <version>2.1.2.RELEASE</version>
         </dependency>
         <dependency>
             <groupId>org.springframework.boot</groupId>
@@ -66,7 +66,6 @@
             <artifactId>spring-boot-autoconfigure</artifactId>
             <version>2.1.1.RELEASE</version>
         </dependency>
-
     </dependencies>
 
     <build>
diff --git a/spring-boot-springdoc/pom.xml b/spring-boot-springdoc/pom.xml
index a818db6e53..8c35e38ae6 100644
--- a/spring-boot-springdoc/pom.xml
+++ b/spring-boot-springdoc/pom.xml
@@ -1,18 +1,17 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0"
-    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung</groupId>
     <artifactId>spring-boot-springdoc</artifactId>
     <version>0.0.1-SNAPSHOT</version>
     <name>spring-boot-springdoc</name>
-    <description>Project for Springdoc integration</description>
     <packaging>jar</packaging>
+    <description>Project for Springdoc integration</description>
 
     <parent>
-        <artifactId>parent-boot-2</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-2</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../parent-boot-2</relativePath>
     </parent>
@@ -102,5 +101,4 @@
         </profile>
     </profiles>
 
-
 </project>
\ No newline at end of file
diff --git a/spring-boot-testing/pom.xml b/spring-boot-testing/pom.xml
index 12fb14b366..ebe87fdd70 100644
--- a/spring-boot-testing/pom.xml
+++ b/spring-boot-testing/pom.xml
@@ -1,15 +1,16 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0"
-    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>spring-boot-testing</artifactId>
     <name>spring-boot-testing</name>
-    <description>This is simple boot application for demonstrating testing features.</description>
     <packaging>war</packaging>
+    <description>This is simple boot application for demonstrating testing features.</description>
 
     <parent>
-        <artifactId>parent-boot-2</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-2</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../parent-boot-2</relativePath>
     </parent>
@@ -58,17 +59,17 @@
             <version>${spock.version}</version>
             <scope>test</scope>
         </dependency>
-        
+
         <dependency>
             <groupId>io.rest-assured</groupId>
             <artifactId>rest-assured</artifactId>
             <scope>test</scope>
         </dependency>
-        
+
     </dependencies>
 
     <build>
-        <finalName>spring-boot</finalName>
+        <finalName>spring-boot-testing</finalName>
         <resources>
             <resource>
                 <directory>src/main/resources</directory>
@@ -120,9 +121,8 @@
                         </goals>
                     </execution>
                 </executions>
-            </plugin>    
+            </plugin>
         </plugins>
-
     </build>
 
     <properties>
diff --git a/spring-boot-vue/pom.xml b/spring-boot-vue/pom.xml
index 5d19f01d1e..98bba784d2 100644
--- a/spring-boot-vue/pom.xml
+++ b/spring-boot-vue/pom.xml
@@ -1,52 +1,51 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
-	<modelVersion>4.0.0</modelVersion>
-	<groupId>com.baeldung</groupId>
-	<artifactId>spring-boot-vue</artifactId>
-	<version>0.0.1-SNAPSHOT</version>
-	<name>spring-boot-vue</name>
-	<packaging>jar</packaging>
-	<description>Demo project for Spring Boot Vue project</description>
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <artifactId>spring-boot-vue</artifactId>
+    <version>0.0.1-SNAPSHOT</version>
+    <name>spring-boot-vue</name>
+    <packaging>jar</packaging>
+    <description>Demo project for Spring Boot Vue project</description>
 
-	<parent>
-        <artifactId>parent-boot-2</artifactId>
+    <parent>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-2</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../parent-boot-2</relativePath>
     </parent>
 
-	<dependencies>
-		<dependency>
-			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-starter-web</artifactId>
-		</dependency>
+    <dependencies>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-web</artifactId>
+        </dependency>
 
-		<dependency>
-			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-starter-test</artifactId>
-			<scope>test</scope>
-		</dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-test</artifactId>
+            <scope>test</scope>
+        </dependency>
 
         <!-- needed to render html templates in /resources/templates -->
         <dependency>
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-thymeleaf</artifactId>
         </dependency>
-	</dependencies>
+    </dependencies>
 
-	<build>
-		<plugins>
-			<plugin>
-				<groupId>org.springframework.boot</groupId>
-				<artifactId>spring-boot-maven-plugin</artifactId>
-			</plugin>
-		</plugins>
-	</build>
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.springframework.boot</groupId>
+                <artifactId>spring-boot-maven-plugin</artifactId>
+            </plugin>
+        </plugins>
+    </build>
 
-	<properties>
-		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-		<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
-	</properties>
+    <properties>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
+    </properties>
 
 </project>
diff --git a/spring-boot/pom.xml b/spring-boot/pom.xml
index 401e0289e8..2152a0a00d 100644
--- a/spring-boot/pom.xml
+++ b/spring-boot/pom.xml
@@ -1,6 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0"
-    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>spring-boot</artifactId>
     <name>spring-boot</name>
@@ -8,14 +9,14 @@
     <description>This is simple boot application for Spring boot actuator test</description>
 
     <parent>
-        <artifactId>parent-boot-2</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-2</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../parent-boot-2</relativePath>
     </parent>
 
     <dependencies>
-      
+
         <!-- JUnit Jupiter dependencies -->
         <dependency>
             <groupId>org.junit.jupiter</groupId>
diff --git a/spring-caching/pom.xml b/spring-caching/pom.xml
index 3329cd5f77..c3ededbd14 100644
--- a/spring-caching/pom.xml
+++ b/spring-caching/pom.xml
@@ -1,3 +1,4 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
@@ -7,8 +8,8 @@
     <packaging>war</packaging>
 
     <parent>
-        <artifactId>parent-boot-2</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-2</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../parent-boot-2</relativePath>
     </parent>
@@ -40,4 +41,5 @@
     <properties>
         <ehcache.version>3.5.2</ehcache.version>
     </properties>
+    
 </project>
\ No newline at end of file
diff --git a/spring-cloud-bus/pom.xml b/spring-cloud-bus/pom.xml
index fdaf8c024f..513c8bade6 100644
--- a/spring-cloud-bus/pom.xml
+++ b/spring-cloud-bus/pom.xml
@@ -1,40 +1,40 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-	xmlns="http://maven.apache.org/POM/4.0.0"
-	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
-	<modelVersion>4.0.0</modelVersion>
-	<groupId>com.baeldung.spring.cloud</groupId>
-	<artifactId>spring-cloud-bus</artifactId>
-	<version>1.0.0-SNAPSHOT</version>
-	<name>spring-cloud-bus</name>
-	<packaging>pom</packaging>
+         xmlns="http://maven.apache.org/POM/4.0.0"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <groupId>com.baeldung.spring.cloud</groupId>
+    <artifactId>spring-cloud-bus</artifactId>
+    <version>1.0.0-SNAPSHOT</version>
+    <name>spring-cloud-bus</name>
+    <packaging>pom</packaging>
 
-	<parent>
-		<artifactId>parent-boot-1</artifactId>
-		<groupId>com.baeldung</groupId>
-		<version>0.0.1-SNAPSHOT</version>
-		<relativePath>../parent-boot-1</relativePath>
-	</parent>
+    <parent>
+        <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-1</artifactId>
+        <version>0.0.1-SNAPSHOT</version>
+        <relativePath>../parent-boot-1</relativePath>
+    </parent>
 
-	<modules>
-		<module>spring-cloud-config-client</module>
-		<module>spring-cloud-config-server</module>
-	</modules>
+    <modules>
+        <module>spring-cloud-config-client</module>
+        <module>spring-cloud-config-server</module>
+    </modules>
 
-	<dependencyManagement>
-		<dependencies>
-			<dependency>
-				<groupId>org.springframework.cloud</groupId>
-				<artifactId>spring-cloud-dependencies</artifactId>
-				<version>${spring-cloud-dependencies.version}</version>
-				<type>pom</type>
-				<scope>import</scope>
-			</dependency>
-		</dependencies>
-	</dependencyManagement>
+    <dependencyManagement>
+        <dependencies>
+            <dependency>
+                <groupId>org.springframework.cloud</groupId>
+                <artifactId>spring-cloud-dependencies</artifactId>
+                <version>${spring-cloud-dependencies.version}</version>
+                <type>pom</type>
+                <scope>import</scope>
+            </dependency>
+        </dependencies>
+    </dependencyManagement>
 
-	<properties>
-		<spring-cloud-dependencies.version>Brixton.SR7</spring-cloud-dependencies.version>
-	</properties>
+    <properties>
+        <spring-cloud-dependencies.version>Brixton.SR7</spring-cloud-dependencies.version>
+    </properties>
 
 </project>
diff --git a/spring-cloud-bus/spring-cloud-config-client/pom.xml b/spring-cloud-bus/spring-cloud-config-client/pom.xml
index 4994626ba5..7e1185415b 100644
--- a/spring-cloud-bus/spring-cloud-config-client/pom.xml
+++ b/spring-cloud-bus/spring-cloud-config-client/pom.xml
@@ -1,52 +1,52 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
-	<modelVersion>4.0.0</modelVersion>
-	<artifactId>spring-cloud-config-client</artifactId>
-	<name>spring-cloud-config-client</name>
-	<packaging>jar</packaging>
-	<description>Demo Spring Cloud Config Client</description>
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <artifactId>spring-cloud-config-client</artifactId>
+    <name>spring-cloud-config-client</name>
+    <packaging>jar</packaging>
+    <description>Demo Spring Cloud Config Client</description>
 
-	<parent>
-		<artifactId>spring-cloud-bus</artifactId>
-		<groupId>com.baeldung.spring.cloud</groupId>
-		<version>1.0.0-SNAPSHOT</version>
-	</parent>
+    <parent>
+        <groupId>com.baeldung.spring.cloud</groupId>
+        <artifactId>spring-cloud-bus</artifactId>
+        <version>1.0.0-SNAPSHOT</version>
+    </parent>
 
-	<dependencies>
-		<dependency>
-			<groupId>org.springframework.cloud</groupId>
-			<artifactId>spring-cloud-starter-config</artifactId>
-		</dependency>
-		<dependency>
-			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-starter-web</artifactId>
-		</dependency>
+    <dependencies>
+        <dependency>
+            <groupId>org.springframework.cloud</groupId>
+            <artifactId>spring-cloud-starter-config</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-web</artifactId>
+        </dependency>
 
-		<dependency>
-			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-starter-test</artifactId>
-			<scope>test</scope>
-		</dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-test</artifactId>
+            <scope>test</scope>
+        </dependency>
 
-		<dependency>
-			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-actuator</artifactId>
-		</dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-actuator</artifactId>
+        </dependency>
 
-		<dependency>
-			<groupId>org.springframework.cloud</groupId>
-			<artifactId>spring-cloud-starter-bus-amqp</artifactId>
-		</dependency>
-	</dependencies>
+        <dependency>
+            <groupId>org.springframework.cloud</groupId>
+            <artifactId>spring-cloud-starter-bus-amqp</artifactId>
+        </dependency>
+    </dependencies>
 
-	<build>
-		<plugins>
-			<plugin>
-				<groupId>org.springframework.boot</groupId>
-				<artifactId>spring-boot-maven-plugin</artifactId>
-			</plugin>
-		</plugins>
-	</build>
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.springframework.boot</groupId>
+                <artifactId>spring-boot-maven-plugin</artifactId>
+            </plugin>
+        </plugins>
+    </build>
 
 </project>
diff --git a/spring-cloud-bus/spring-cloud-config-server/pom.xml b/spring-cloud-bus/spring-cloud-config-server/pom.xml
index 51b447161e..a61008f3dd 100644
--- a/spring-cloud-bus/spring-cloud-config-server/pom.xml
+++ b/spring-cloud-bus/spring-cloud-config-server/pom.xml
@@ -1,53 +1,53 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
-	<modelVersion>4.0.0</modelVersion>
-	<artifactId>spring-cloud-config-server</artifactId>
-	<name>spring-cloud-config-server</name>
-	<packaging>jar</packaging>
-	<description>Demo Spring Cloud Config Server</description>
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <artifactId>spring-cloud-config-server</artifactId>
+    <name>spring-cloud-config-server</name>
+    <packaging>jar</packaging>
+    <description>Demo Spring Cloud Config Server</description>
 
-	<parent>
-		<artifactId>spring-cloud-bus</artifactId>
-		<groupId>com.baeldung.spring.cloud</groupId>
-		<version>1.0.0-SNAPSHOT</version>
-	</parent>
+    <parent>
+        <groupId>com.baeldung.spring.cloud</groupId>
+        <artifactId>spring-cloud-bus</artifactId>
+        <version>1.0.0-SNAPSHOT</version>
+    </parent>
 
-	<dependencies>
-		<dependency>
-			<groupId>org.springframework.cloud</groupId>
-			<artifactId>spring-cloud-config-server</artifactId>
-		</dependency>
+    <dependencies>
+        <dependency>
+            <groupId>org.springframework.cloud</groupId>
+            <artifactId>spring-cloud-config-server</artifactId>
+        </dependency>
 
-		<dependency>
-			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-starter-security</artifactId>
-		</dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-security</artifactId>
+        </dependency>
 
-		<dependency>
-			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-starter-test</artifactId>
-			<scope>test</scope>
-		</dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-test</artifactId>
+            <scope>test</scope>
+        </dependency>
 
-		<dependency>
-			<groupId>org.springframework.cloud</groupId>
-			<artifactId>spring-cloud-config-monitor</artifactId>
-		</dependency>
+        <dependency>
+            <groupId>org.springframework.cloud</groupId>
+            <artifactId>spring-cloud-config-monitor</artifactId>
+        </dependency>
 
-		<dependency>
-			<groupId>org.springframework.cloud</groupId>
-			<artifactId>spring-cloud-starter-stream-rabbit</artifactId>
-		</dependency>
-	</dependencies>
+        <dependency>
+            <groupId>org.springframework.cloud</groupId>
+            <artifactId>spring-cloud-starter-stream-rabbit</artifactId>
+        </dependency>
+    </dependencies>
 
-	<build>
-		<plugins>
-			<plugin>
-				<groupId>org.springframework.boot</groupId>
-				<artifactId>spring-boot-maven-plugin</artifactId>
-			</plugin>
-		</plugins>
-	</build>
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.springframework.boot</groupId>
+                <artifactId>spring-boot-maven-plugin</artifactId>
+            </plugin>
+        </plugins>
+    </build>
 
 </project>
diff --git a/spring-cloud-data-flow/apache-spark-job/pom.xml b/spring-cloud-data-flow/apache-spark-job/pom.xml
index 306b23c60a..65a57671ea 100644
--- a/spring-cloud-data-flow/apache-spark-job/pom.xml
+++ b/spring-cloud-data-flow/apache-spark-job/pom.xml
@@ -5,18 +5,18 @@
     <modelVersion>4.0.0</modelVersion>
     <artifactId>apache-spark-job</artifactId>
     <name>apache-spark-job</name>
-	
+
     <parent>
-        <artifactId>spring-cloud-data-flow</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>spring-cloud-data-flow</artifactId>
         <version>0.0.1-SNAPSHOT</version>
     </parent>
-    
+
     <dependencies>
         <dependency>
             <groupId>org.springframework.cloud</groupId>
             <artifactId>spring-cloud-task-core</artifactId>
-                <version>${spring-cloud-task-core.version}</version>
+            <version>${spring-cloud-task-core.version}</version>
         </dependency>
         <dependency>
             <groupId>org.apache.spark</groupId>
diff --git a/spring-cloud-data-flow/batch-job/pom.xml b/spring-cloud-data-flow/batch-job/pom.xml
index 04187badb4..1ed0017bc0 100644
--- a/spring-cloud-data-flow/batch-job/pom.xml
+++ b/spring-cloud-data-flow/batch-job/pom.xml
@@ -1,21 +1,33 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <groupId>org.baeldung.spring.cloud</groupId>
     <artifactId>batch-job</artifactId>
     <version>0.0.1-SNAPSHOT</version>
     <name>batch-job</name>
-    <description>Demo project for Spring Boot</description>
     <packaging>jar</packaging>
+    <description>Demo project for Spring Boot</description>
 
     <parent>
-        <artifactId>parent-boot-1</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-1</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../../parent-boot-1</relativePath>
     </parent>
 
+    <dependencyManagement>
+        <dependencies>
+            <dependency>
+                <groupId>org.springframework.cloud</groupId>
+                <artifactId>spring-cloud-dependencies</artifactId>
+                <version>Brixton.SR5</version>
+                <type>pom</type>
+                <scope>import</scope>
+            </dependency>
+        </dependencies>
+    </dependencyManagement>
+    
     <dependencies>
         <dependency>
             <groupId>org.springframework.cloud</groupId>
@@ -35,18 +47,6 @@
         </dependency>
     </dependencies>
 
-    <dependencyManagement>
-        <dependencies>
-            <dependency>
-                <groupId>org.springframework.cloud</groupId>
-                <artifactId>spring-cloud-dependencies</artifactId>
-                <version>Brixton.SR5</version>
-                <type>pom</type>
-                <scope>import</scope>
-            </dependency>
-        </dependencies>
-    </dependencyManagement>
-
     <properties>
         <spring-cloud-task-starter.version>1.0.3.RELEASE</spring-cloud-task-starter.version>
     </properties>
diff --git a/spring-cloud-data-flow/pom.xml b/spring-cloud-data-flow/pom.xml
index 32e16c72fc..e2a0664f30 100644
--- a/spring-cloud-data-flow/pom.xml
+++ b/spring-cloud-data-flow/pom.xml
@@ -1,11 +1,12 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>spring-cloud-data-flow</artifactId>
     <version>0.0.1-SNAPSHOT</version>
     <name>spring-cloud-data-flow</name>
     <packaging>pom</packaging>
-	
+
     <parent>
         <groupId>com.baeldung</groupId>
         <artifactId>parent-modules</artifactId>
diff --git a/spring-cloud-data-flow/spring-cloud-data-flow-etl/customer-mongodb-sink/pom.xml b/spring-cloud-data-flow/spring-cloud-data-flow-etl/customer-mongodb-sink/pom.xml
index 409db34829..9fd378b171 100644
--- a/spring-cloud-data-flow/spring-cloud-data-flow-etl/customer-mongodb-sink/pom.xml
+++ b/spring-cloud-data-flow/spring-cloud-data-flow-etl/customer-mongodb-sink/pom.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>customer-mongodb-sink</artifactId>
     <name>customer-mongodb-sink</name>
@@ -8,12 +8,24 @@
     <description>Example ETL Load Project</description>
 
     <parent>
-        <artifactId>parent-boot-2</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-2</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../../../parent-boot-2</relativePath>
     </parent>
 
+    <dependencyManagement>
+        <dependencies>
+            <dependency>
+                <groupId>org.springframework.cloud</groupId>
+                <artifactId>spring-cloud-dependencies</artifactId>
+                <version>${spring-cloud.version}</version>
+                <type>pom</type>
+                <scope>import</scope>
+            </dependency>
+        </dependencies>
+    </dependencyManagement>
+
     <dependencies>
         <dependency>
             <groupId>org.springframework.cloud</groupId>
@@ -39,18 +51,6 @@
         </dependency>
     </dependencies>
 
-    <dependencyManagement>
-        <dependencies>
-            <dependency>
-                <groupId>org.springframework.cloud</groupId>
-                <artifactId>spring-cloud-dependencies</artifactId>
-                <version>${spring-cloud.version}</version>
-                <type>pom</type>
-                <scope>import</scope>
-            </dependency>
-        </dependencies>
-    </dependencyManagement>
-
     <build>
         <plugins>
             <plugin>
diff --git a/spring-cloud-data-flow/spring-cloud-data-flow-etl/customer-transform/pom.xml b/spring-cloud-data-flow/spring-cloud-data-flow-etl/customer-transform/pom.xml
index 66f1d5e0d7..fdec22f3b3 100644
--- a/spring-cloud-data-flow/spring-cloud-data-flow-etl/customer-transform/pom.xml
+++ b/spring-cloud-data-flow/spring-cloud-data-flow-etl/customer-transform/pom.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>customer-transform</artifactId>
     <name>customer-transform</name>
@@ -8,12 +8,24 @@
     <description>Example transform ETL step</description>
 
     <parent>
-        <artifactId>parent-boot-2</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-2</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../../../parent-boot-2</relativePath>
     </parent>
 
+    <dependencyManagement>
+        <dependencies>
+            <dependency>
+                <groupId>org.springframework.cloud</groupId>
+                <artifactId>spring-cloud-dependencies</artifactId>
+                <version>${spring-cloud.version}</version>
+                <type>pom</type>
+                <scope>import</scope>
+            </dependency>
+        </dependencies>
+    </dependencyManagement>
+
     <dependencies>
         <dependency>
             <groupId>org.springframework.cloud</groupId>
@@ -31,18 +43,6 @@
         </dependency>
     </dependencies>
 
-    <dependencyManagement>
-        <dependencies>
-            <dependency>
-                <groupId>org.springframework.cloud</groupId>
-                <artifactId>spring-cloud-dependencies</artifactId>
-                <version>${spring-cloud.version}</version>
-                <type>pom</type>
-                <scope>import</scope>
-            </dependency>
-        </dependencies>
-    </dependencyManagement>
-
     <build>
         <plugins>
             <plugin>
diff --git a/spring-cloud-data-flow/spring-cloud-data-flow-etl/pom.xml b/spring-cloud-data-flow/spring-cloud-data-flow-etl/pom.xml
index 0274b5fed1..91abdf3442 100644
--- a/spring-cloud-data-flow/spring-cloud-data-flow-etl/pom.xml
+++ b/spring-cloud-data-flow/spring-cloud-data-flow-etl/pom.xml
@@ -1,11 +1,12 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>spring-cloud-data-flow-etl</artifactId>
     <version>0.0.1-SNAPSHOT</version>
     <name>spring-cloud-data-flow-etl</name>
     <packaging>pom</packaging>
-	
+
     <parent>
         <groupId>com.baeldung</groupId>
         <artifactId>spring-cloud-data-flow</artifactId>
diff --git a/spring-cloud-data-flow/spring-cloud-data-flow-stream-processing/data-flow-server/pom.xml b/spring-cloud-data-flow/spring-cloud-data-flow-stream-processing/data-flow-server/pom.xml
index 7166b0fd32..ba108dc5c7 100644
--- a/spring-cloud-data-flow/spring-cloud-data-flow-stream-processing/data-flow-server/pom.xml
+++ b/spring-cloud-data-flow/spring-cloud-data-flow-stream-processing/data-flow-server/pom.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0"
-    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>data-flow-server</artifactId>
     <version>0.0.1-SNAPSHOT</version>
@@ -10,29 +10,12 @@
     <description>Demo project for Spring Boot</description>
 
     <parent>
-        <artifactId>parent-boot-1</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-1</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../../../parent-boot-1</relativePath>
     </parent>
 
-    <dependencies>
-        <dependency>
-            <groupId>org.springframework.cloud</groupId>
-            <artifactId>spring-cloud-starter-dataflow-server-local</artifactId>
-        </dependency>
-        <dependency>
-            <groupId>org.hibernate</groupId>
-            <artifactId>hibernate-core</artifactId>
-            <version>${hibernate.compatible.version}</version>
-        </dependency>
-        <dependency>
-            <groupId>org.hibernate</groupId>
-            <artifactId>hibernate-entitymanager</artifactId>
-            <version>${hibernate.compatible.version}</version>
-        </dependency>
-    </dependencies>
-
     <dependencyManagement>
         <dependencies>
             <dependency>
@@ -52,6 +35,23 @@
         </dependencies>
     </dependencyManagement>
 
+    <dependencies>
+        <dependency>
+            <groupId>org.springframework.cloud</groupId>
+            <artifactId>spring-cloud-starter-dataflow-server-local</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.hibernate</groupId>
+            <artifactId>hibernate-core</artifactId>
+            <version>${hibernate.compatible.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.hibernate</groupId>
+            <artifactId>hibernate-entitymanager</artifactId>
+            <version>${hibernate.compatible.version}</version>
+        </dependency>
+    </dependencies>
+
     <properties>
         <spring-cloud-dataflow-dependencies.version>1.3.1.RELEASE</spring-cloud-dataflow-dependencies.version>
         <spring-cloud-dependencies.version>Edgware.SR6</spring-cloud-dependencies.version>
diff --git a/spring-cloud-data-flow/spring-cloud-data-flow-stream-processing/data-flow-shell/pom.xml b/spring-cloud-data-flow/spring-cloud-data-flow-stream-processing/data-flow-shell/pom.xml
index 9c379624d3..cc37e76aa4 100644
--- a/spring-cloud-data-flow/spring-cloud-data-flow-stream-processing/data-flow-shell/pom.xml
+++ b/spring-cloud-data-flow/spring-cloud-data-flow-stream-processing/data-flow-shell/pom.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>data-flow-shell</artifactId>
     <version>0.0.1-SNAPSHOT</version>
@@ -9,19 +9,12 @@
     <description>Demo project for Spring Boot</description>
 
     <parent>
-        <artifactId>parent-boot-1</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-1</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../../../parent-boot-1</relativePath>
     </parent>
 
-    <dependencies>
-        <dependency>
-            <groupId>org.springframework.cloud</groupId>
-            <artifactId>spring-cloud-dataflow-shell</artifactId>
-        </dependency>
-    </dependencies>
-
     <dependencyManagement>
         <dependencies>
             <dependency>
@@ -41,6 +34,13 @@
         </dependencies>
     </dependencyManagement>
 
+    <dependencies>
+        <dependency>
+            <groupId>org.springframework.cloud</groupId>
+            <artifactId>spring-cloud-dataflow-shell</artifactId>
+        </dependency>
+    </dependencies>
+
     <properties>
         <spring-cloud-dependencies.version>Brixton.SR7</spring-cloud-dependencies.version>
         <spring-cloud-dataflow-dependencies.version>1.1.0.RELEASE</spring-cloud-dataflow-dependencies.version>
diff --git a/spring-cloud-data-flow/spring-cloud-data-flow-stream-processing/log-sink/pom.xml b/spring-cloud-data-flow/spring-cloud-data-flow-stream-processing/log-sink/pom.xml
index 73fb82d79f..02d572aeb7 100644
--- a/spring-cloud-data-flow/spring-cloud-data-flow-stream-processing/log-sink/pom.xml
+++ b/spring-cloud-data-flow/spring-cloud-data-flow-stream-processing/log-sink/pom.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>log-sink</artifactId>
     <version>0.0.1-SNAPSHOT</version>
@@ -9,19 +9,12 @@
     <description>Demo project for Spring Boot</description>
 
     <parent>
-        <artifactId>parent-boot-1</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-1</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../../../parent-boot-1</relativePath>
     </parent>
 
-    <dependencies>
-        <dependency>
-            <groupId>org.springframework.cloud</groupId>
-            <artifactId>spring-cloud-starter-stream-rabbit</artifactId>
-        </dependency>
-    </dependencies>
-
     <dependencyManagement>
         <dependencies>
             <dependency>
@@ -33,6 +26,13 @@
             </dependency>
         </dependencies>
     </dependencyManagement>
+    
+    <dependencies>
+        <dependency>
+            <groupId>org.springframework.cloud</groupId>
+            <artifactId>spring-cloud-starter-stream-rabbit</artifactId>
+        </dependency>
+    </dependencies>
 
     <properties>
         <spring-cloud-dependencies.version>Brixton.SR7</spring-cloud-dependencies.version>
diff --git a/spring-cloud-data-flow/spring-cloud-data-flow-stream-processing/pom.xml b/spring-cloud-data-flow/spring-cloud-data-flow-stream-processing/pom.xml
index bcb0ace973..5342049d73 100644
--- a/spring-cloud-data-flow/spring-cloud-data-flow-stream-processing/pom.xml
+++ b/spring-cloud-data-flow/spring-cloud-data-flow-stream-processing/pom.xml
@@ -1,11 +1,12 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>spring-cloud-data-flow-stream-processing</artifactId>
     <version>0.0.1-SNAPSHOT</version>
     <name>spring-cloud-data-flow-stream-processing</name>
     <packaging>pom</packaging>
-	
+
     <parent>
         <groupId>com.baeldung</groupId>
         <artifactId>parent-modules</artifactId>
diff --git a/spring-cloud-data-flow/spring-cloud-data-flow-stream-processing/time-processor/pom.xml b/spring-cloud-data-flow/spring-cloud-data-flow-stream-processing/time-processor/pom.xml
index 28a9d3e6e0..f8db434423 100644
--- a/spring-cloud-data-flow/spring-cloud-data-flow-stream-processing/time-processor/pom.xml
+++ b/spring-cloud-data-flow/spring-cloud-data-flow-stream-processing/time-processor/pom.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>time-processor</artifactId>
     <version>0.0.1-SNAPSHOT</version>
@@ -9,19 +9,12 @@
     <description>Demo project for Spring Boot</description>
 
     <parent>
-        <artifactId>parent-boot-1</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-1</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../../../parent-boot-1</relativePath>
     </parent>
 
-    <dependencies>
-        <dependency>
-            <groupId>org.springframework.cloud</groupId>
-            <artifactId>spring-cloud-starter-stream-rabbit</artifactId>
-        </dependency>
-    </dependencies>
-
     <dependencyManagement>
         <dependencies>
             <dependency>
@@ -34,6 +27,13 @@
         </dependencies>
     </dependencyManagement>
 
+    <dependencies>
+        <dependency>
+            <groupId>org.springframework.cloud</groupId>
+            <artifactId>spring-cloud-starter-stream-rabbit</artifactId>
+        </dependency>
+    </dependencies>
+
     <properties>
         <spring-cloud-dependencies.version>Brixton.SR7</spring-cloud-dependencies.version>
     </properties>
diff --git a/spring-cloud-data-flow/spring-cloud-data-flow-stream-processing/time-source/pom.xml b/spring-cloud-data-flow/spring-cloud-data-flow-stream-processing/time-source/pom.xml
index 3b748fd7df..8194755814 100644
--- a/spring-cloud-data-flow/spring-cloud-data-flow-stream-processing/time-source/pom.xml
+++ b/spring-cloud-data-flow/spring-cloud-data-flow-stream-processing/time-source/pom.xml
@@ -1,27 +1,20 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>time-source</artifactId>
     <version>0.0.1-SNAPSHOT</version>
-    <packaging>jar</packaging>
     <name>time-source</name>
+    <packaging>jar</packaging>
     <description>Demo project for Spring Boot</description>
 
     <parent>
-        <artifactId>parent-boot-1</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-1</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../../../parent-boot-1</relativePath>
     </parent>
 
-    <dependencies>
-        <dependency>
-            <groupId>org.springframework.cloud</groupId>
-            <artifactId>spring-cloud-starter-stream-rabbit</artifactId>
-        </dependency>
-    </dependencies>
-
     <dependencyManagement>
         <dependencies>
             <dependency>
@@ -34,6 +27,13 @@
         </dependencies>
     </dependencyManagement>
 
+    <dependencies>
+        <dependency>
+            <groupId>org.springframework.cloud</groupId>
+            <artifactId>spring-cloud-starter-stream-rabbit</artifactId>
+        </dependency>
+    </dependencies>
+
     <properties>
         <spring-cloud-dependencies.version>Brixton.SR7</spring-cloud-dependencies.version>
     </properties>
diff --git a/spring-cloud/pom.xml b/spring-cloud/pom.xml
index 7138efc128..23ad11b03f 100644
--- a/spring-cloud/pom.xml
+++ b/spring-cloud/pom.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://maven.apache.org/POM/4.0.0"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <groupId>com.baeldung.spring.cloud</groupId>
     <artifactId>spring-cloud</artifactId>
@@ -33,7 +33,7 @@
         <module>spring-cloud-contract</module>
         <module>spring-cloud-kubernetes</module>
         <module>spring-cloud-archaius</module>
-        <module>spring-cloud-functions</module>        
+        <module>spring-cloud-functions</module>
         <module>spring-cloud-vault</module>
         <!-- <module>spring-cloud-security</module> --> <!-- Fixing in BAEL-10887 -->
         <module>spring-cloud-task</module>
diff --git a/spring-cloud/spring-cloud-archaius/additional-sources-simple/pom.xml b/spring-cloud/spring-cloud-archaius/additional-sources-simple/pom.xml
index cc100833cd..cc20511fc6 100644
--- a/spring-cloud/spring-cloud-archaius/additional-sources-simple/pom.xml
+++ b/spring-cloud/spring-cloud-archaius/additional-sources-simple/pom.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xmlns="http://maven.apache.org/POM/4.0.0"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xmlns="http://maven.apache.org/POM/4.0.0"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>additional-sources-simple</artifactId>
     <version>1.0.0-SNAPSHOT</version>
@@ -21,4 +21,5 @@
             <artifactId>spring-boot-starter-web</artifactId>
         </dependency>
     </dependencies>
+    
 </project>
diff --git a/spring-cloud/spring-cloud-archaius/basic-config/pom.xml b/spring-cloud/spring-cloud-archaius/basic-config/pom.xml
index be77eeb71c..a13fff2f9d 100644
--- a/spring-cloud/spring-cloud-archaius/basic-config/pom.xml
+++ b/spring-cloud/spring-cloud-archaius/basic-config/pom.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xmlns="http://maven.apache.org/POM/4.0.0"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xmlns="http://maven.apache.org/POM/4.0.0"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>basic-config</artifactId>
     <version>1.0.0-SNAPSHOT</version>
@@ -21,4 +21,5 @@
             <artifactId>spring-boot-starter-web</artifactId>
         </dependency>
     </dependencies>
+    
 </project>
diff --git a/spring-cloud/spring-cloud-archaius/dynamodb-config/pom.xml b/spring-cloud/spring-cloud-archaius/dynamodb-config/pom.xml
index 96f6c8711e..9ff267425c 100644
--- a/spring-cloud/spring-cloud-archaius/dynamodb-config/pom.xml
+++ b/spring-cloud/spring-cloud-archaius/dynamodb-config/pom.xml
@@ -1,9 +1,9 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://maven.apache.org/POM/4.0.0"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>dynamodb-config</artifactId>
-	<name>dynamodb-config</name>
+    <name>dynamodb-config</name>
     <packaging>jar</packaging>
 
     <parent>
@@ -45,4 +45,5 @@
         <spring.dynamo.version>5.0.3</spring.dynamo.version>
         <archaius.version>0.7.6</archaius.version>
     </properties>
+    
 </project>
diff --git a/spring-cloud/spring-cloud-archaius/extra-configs/pom.xml b/spring-cloud/spring-cloud-archaius/extra-configs/pom.xml
index f7e5807f43..70f736642c 100644
--- a/spring-cloud/spring-cloud-archaius/extra-configs/pom.xml
+++ b/spring-cloud/spring-cloud-archaius/extra-configs/pom.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xmlns="http://maven.apache.org/POM/4.0.0"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xmlns="http://maven.apache.org/POM/4.0.0"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>extra-configs</artifactId>
     <version>1.0.0-SNAPSHOT</version>
@@ -41,4 +41,5 @@
     <properties>
         <spring-cloud-dependencies.version>2.0.1.RELEASE</spring-cloud-dependencies.version>
     </properties>
+    
 </project>
diff --git a/spring-cloud/spring-cloud-archaius/jdbc-config/pom.xml b/spring-cloud/spring-cloud-archaius/jdbc-config/pom.xml
index 59dea4890e..b7e4917bea 100644
--- a/spring-cloud/spring-cloud-archaius/jdbc-config/pom.xml
+++ b/spring-cloud/spring-cloud-archaius/jdbc-config/pom.xml
@@ -1,9 +1,9 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://maven.apache.org/POM/4.0.0"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>jdbc-config</artifactId>
-	<name>jdbc-config</name>
+    <name>jdbc-config</name>
     <packaging>jar</packaging>
 
     <parent>
@@ -28,4 +28,5 @@
             <scope>runtime</scope>
         </dependency>
     </dependencies>
+    
 </project>
diff --git a/spring-cloud/spring-cloud-archaius/pom.xml b/spring-cloud/spring-cloud-archaius/pom.xml
index fd3e34e463..df8162efa5 100644
--- a/spring-cloud/spring-cloud-archaius/pom.xml
+++ b/spring-cloud/spring-cloud-archaius/pom.xml
@@ -1,14 +1,13 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xmlns="http://maven.apache.org/POM/4.0.0"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xmlns="http://maven.apache.org/POM/4.0.0"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung.spring.cloud</groupId>
     <artifactId>spring-cloud-archaius</artifactId>
     <version>1.0.0-SNAPSHOT</version>
     <name>spring-cloud-archaius</name>
-    <description>Spring Cloud Archaius Pom parent</description>
     <packaging>pom</packaging>
+    <description>Spring Cloud Archaius Pom parent</description>
 
     <parent>
         <groupId>com.baeldung.spring.cloud</groupId>
@@ -26,6 +25,18 @@
         <module>zookeeper-config</module>
     </modules>
 
+    <dependencyManagement>
+        <dependencies>
+            <dependency>
+                <groupId>org.springframework.cloud</groupId>
+                <artifactId>spring-cloud-netflix</artifactId>
+                <version>${spring-cloud-dependencies.version}</version>
+                <type>pom</type>
+                <scope>import</scope>
+            </dependency>
+        </dependencies>
+    </dependencyManagement>
+
     <dependencies>
         <dependency>
             <groupId>org.springframework.cloud</groupId>
@@ -48,20 +59,9 @@
         </dependency>
     </dependencies>
 
-    <dependencyManagement>
-        <dependencies>
-            <dependency>
-                <groupId>org.springframework.cloud</groupId>
-                <artifactId>spring-cloud-netflix</artifactId>
-                <version>${spring-cloud-dependencies.version}</version>
-                <type>pom</type>
-                <scope>import</scope>
-            </dependency>
-        </dependencies>
-    </dependencyManagement>
-
     <properties>
         <spring-cloud-dependencies.version>2.0.1.RELEASE</spring-cloud-dependencies.version>
         <junit.platform.version>1.2.0</junit.platform.version>
     </properties>
+    
 </project>
diff --git a/spring-cloud/spring-cloud-archaius/zookeeper-config/pom.xml b/spring-cloud/spring-cloud-archaius/zookeeper-config/pom.xml
index 51010eefb2..25eaf4435c 100644
--- a/spring-cloud/spring-cloud-archaius/zookeeper-config/pom.xml
+++ b/spring-cloud/spring-cloud-archaius/zookeeper-config/pom.xml
@@ -1,9 +1,9 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://maven.apache.org/POM/4.0.0"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>zookeeper-config</artifactId>
-	<name>zookeeper-config</name>
+    <name>zookeeper-config</name>
     <packaging>jar</packaging>
 
     <parent>
@@ -46,4 +46,5 @@
         <cloud.zookeeper.version>2.0.0.RELEASE</cloud.zookeeper.version>
         <zookeeper.version>3.4.13</zookeeper.version>
     </properties>
+    
 </project>
diff --git a/spring-cloud/spring-cloud-aws/pom.xml b/spring-cloud/spring-cloud-aws/pom.xml
index 26c407a77e..c1fc458a24 100644
--- a/spring-cloud/spring-cloud-aws/pom.xml
+++ b/spring-cloud/spring-cloud-aws/pom.xml
@@ -1,16 +1,16 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <groupId>com.baeldung.spring.cloud</groupId>
     <artifactId>spring-cloud-aws</artifactId>
     <name>spring-cloud-aws</name>
-    <description>Spring Cloud AWS Examples</description>
     <packaging>jar</packaging>
+    <description>Spring Cloud AWS Examples</description>
 
     <parent>
-        <artifactId>parent-boot-1</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-1</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../../parent-boot-1</relativePath>
     </parent>
@@ -61,4 +61,5 @@
         <start-class>com.baeldung.spring.cloud.aws.SpringCloudAwsApplication</start-class>
         <spring-cloud.version>Dalston.SR4</spring-cloud.version>
     </properties>
+    
 </project>
diff --git a/spring-cloud/spring-cloud-bootstrap/config/pom.xml b/spring-cloud/spring-cloud-bootstrap/config/pom.xml
index 1379af0b05..67831d0c7f 100644
--- a/spring-cloud/spring-cloud-bootstrap/config/pom.xml
+++ b/spring-cloud/spring-cloud-bootstrap/config/pom.xml
@@ -4,11 +4,11 @@
     <modelVersion>4.0.0</modelVersion>
     <artifactId>config</artifactId>
     <version>1.0.0-SNAPSHOT</version>
-	<name>config</name>
+    <name>config</name>
 
     <parent>
-        <artifactId>parent-boot-1</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-1</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../../../parent-boot-1</relativePath>
     </parent>
diff --git a/spring-cloud/spring-cloud-bootstrap/discovery/pom.xml b/spring-cloud/spring-cloud-bootstrap/discovery/pom.xml
index 09bea4864a..46550031e1 100644
--- a/spring-cloud/spring-cloud-bootstrap/discovery/pom.xml
+++ b/spring-cloud/spring-cloud-bootstrap/discovery/pom.xml
@@ -4,15 +4,27 @@
     <modelVersion>4.0.0</modelVersion>
     <artifactId>discovery</artifactId>
     <version>1.0.0-SNAPSHOT</version>
-	<name>discovery</name>
+    <name>discovery</name>
 
     <parent>
-        <artifactId>parent-boot-1</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-1</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../../../parent-boot-1</relativePath>
     </parent>
 
+    <dependencyManagement>
+        <dependencies>
+            <dependency>
+                <groupId>org.springframework.cloud</groupId>
+                <artifactId>spring-cloud-dependencies</artifactId>
+                <version>${spring-cloud-dependencies.version}</version>
+                <type>pom</type>
+                <scope>import</scope>
+            </dependency>
+        </dependencies>
+    </dependencyManagement>
+
     <dependencies>
         <dependency>
             <groupId>org.springframework.cloud</groupId>
@@ -37,19 +49,8 @@
         </dependency>
     </dependencies>
 
-    <dependencyManagement>
-        <dependencies>
-            <dependency>
-                <groupId>org.springframework.cloud</groupId>
-                <artifactId>spring-cloud-dependencies</artifactId>
-                <version>${spring-cloud-dependencies.version}</version>
-                <type>pom</type>
-                <scope>import</scope>
-            </dependency>
-        </dependencies>
-    </dependencyManagement>
-
     <properties>
         <spring-cloud-dependencies.version>Edgware.SR5</spring-cloud-dependencies.version>
     </properties>
+
 </project>
\ No newline at end of file
diff --git a/spring-cloud/spring-cloud-bootstrap/gateway/pom.xml b/spring-cloud/spring-cloud-bootstrap/gateway/pom.xml
index 6cbaa5ac2d..10a04db197 100644
--- a/spring-cloud/spring-cloud-bootstrap/gateway/pom.xml
+++ b/spring-cloud/spring-cloud-bootstrap/gateway/pom.xml
@@ -4,15 +4,27 @@
     <modelVersion>4.0.0</modelVersion>
     <artifactId>gateway</artifactId>
     <version>1.0.0-SNAPSHOT</version>
-	<name>gateway</name>
+    <name>gateway</name>
 
     <parent>
-        <artifactId>parent-boot-1</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-1</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../../../parent-boot-1</relativePath>
     </parent>
 
+    <dependencyManagement>
+        <dependencies>
+            <dependency>
+                <groupId>org.springframework.cloud</groupId>
+                <artifactId>spring-cloud-dependencies</artifactId>
+                <version>${spring-cloud-dependencies.version}</version>
+                <type>pom</type>
+                <scope>import</scope>
+            </dependency>
+        </dependencies>
+    </dependencyManagement>
+
     <dependencies>
         <dependency>
             <groupId>org.springframework.cloud</groupId>
@@ -51,18 +63,6 @@
 
     </dependencies>
 
-    <dependencyManagement>
-        <dependencies>
-            <dependency>
-                <groupId>org.springframework.cloud</groupId>
-                <artifactId>spring-cloud-dependencies</artifactId>
-                <version>${spring-cloud-dependencies.version}</version>
-                <type>pom</type>
-                <scope>import</scope>
-            </dependency>
-        </dependencies>
-    </dependencyManagement>
-
     <build>
         <plugins>
             <plugin>
@@ -101,4 +101,5 @@
     <properties>
         <spring-cloud-dependencies.version>Dalston.RELEASE</spring-cloud-dependencies.version>
     </properties>
+    
 </project>
\ No newline at end of file
diff --git a/spring-cloud/spring-cloud-bootstrap/pom.xml b/spring-cloud/spring-cloud-bootstrap/pom.xml
index 46460c0d74..2447b90538 100644
--- a/spring-cloud/spring-cloud-bootstrap/pom.xml
+++ b/spring-cloud/spring-cloud-bootstrap/pom.xml
@@ -1,10 +1,10 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>spring-cloud-bootstrap</artifactId>
     <version>1.0.0-SNAPSHOT</version>
-	<name>spring-cloud-bootstrap</name>
+    <name>spring-cloud-bootstrap</name>
     <packaging>pom</packaging>
 
     <parent>
diff --git a/spring-cloud/spring-cloud-bootstrap/svc-book/pom.xml b/spring-cloud/spring-cloud-bootstrap/svc-book/pom.xml
index a88b77dda0..36227f93c6 100644
--- a/spring-cloud/spring-cloud-bootstrap/svc-book/pom.xml
+++ b/spring-cloud/spring-cloud-bootstrap/svc-book/pom.xml
@@ -5,15 +5,27 @@
     <groupId>com.baeldung.spring.cloud</groupId>
     <artifactId>svc-book</artifactId>
     <version>1.0.0-SNAPSHOT</version>
-	<name>svc-book</name>
+    <name>svc-book</name>
 
     <parent>
-        <artifactId>parent-boot-1</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-1</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../../../parent-boot-1</relativePath>
     </parent>
 
+    <dependencyManagement>
+        <dependencies>
+            <dependency>
+                <groupId>org.springframework.cloud</groupId>
+                <artifactId>spring-cloud-dependencies</artifactId>
+                <version>${spring-cloud-dependencies.version}</version>
+                <type>pom</type>
+                <scope>import</scope>
+            </dependency>
+        </dependencies>
+    </dependencyManagement>
+
     <dependencies>
         <dependency>
             <groupId>org.springframework.cloud</groupId>
@@ -59,18 +71,6 @@
 
     </dependencies>
 
-    <dependencyManagement>
-        <dependencies>
-            <dependency>
-                <groupId>org.springframework.cloud</groupId>
-                <artifactId>spring-cloud-dependencies</artifactId>
-                <version>${spring-cloud-dependencies.version}</version>
-                <type>pom</type>
-                <scope>import</scope>
-            </dependency>
-        </dependencies>
-    </dependencyManagement>
-
     <properties>
         <spring-cloud-dependencies.version>Dalston.RELEASE</spring-cloud-dependencies.version>
     </properties>
diff --git a/spring-cloud/spring-cloud-bootstrap/svc-rating/pom.xml b/spring-cloud/spring-cloud-bootstrap/svc-rating/pom.xml
index f0b19922d8..0a01488628 100644
--- a/spring-cloud/spring-cloud-bootstrap/svc-rating/pom.xml
+++ b/spring-cloud/spring-cloud-bootstrap/svc-rating/pom.xml
@@ -5,11 +5,11 @@
     <groupId>com.baeldung.spring.cloud</groupId>
     <artifactId>svc-rating</artifactId>
     <version>1.0.0-SNAPSHOT</version>
-	<name>svc-rating</name>
+    <name>svc-rating</name>
 
     <parent>
-        <artifactId>parent-boot-1</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-1</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../../../parent-boot-1</relativePath>
     </parent>
diff --git a/spring-cloud/spring-cloud-bootstrap/zipkin/pom.xml b/spring-cloud/spring-cloud-bootstrap/zipkin/pom.xml
index 1bf9ecb9e7..bf7525a8e4 100644
--- a/spring-cloud/spring-cloud-bootstrap/zipkin/pom.xml
+++ b/spring-cloud/spring-cloud-bootstrap/zipkin/pom.xml
@@ -4,11 +4,11 @@
     <modelVersion>4.0.0</modelVersion>
     <artifactId>zipkin</artifactId>
     <version>1.0.0-SNAPSHOT</version>
-	<name>zipkin</name>
+    <name>zipkin</name>
 
     <parent>
-        <artifactId>parent-boot-1</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-1</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../../../parent-boot-1</relativePath>
     </parent>
diff --git a/spring-cloud/spring-cloud-config/client/pom.xml b/spring-cloud/spring-cloud-config/client/pom.xml
index 14b0d2f9b1..4f4a420238 100644
--- a/spring-cloud/spring-cloud-config/client/pom.xml
+++ b/spring-cloud/spring-cloud-config/client/pom.xml
@@ -4,8 +4,8 @@
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>client</artifactId>
-	<name>client</name>
-	
+    <name>client</name>
+
     <parent>
         <groupId>com.baeldung.spring.cloud</groupId>
         <artifactId>spring-cloud-config</artifactId>
@@ -16,7 +16,7 @@
         <dependency>
             <groupId>org.springframework.cloud</groupId>
             <artifactId>spring-cloud-starter-config</artifactId>
-            </dependency>
+        </dependency>
         <dependency>
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-web</artifactId>
diff --git a/spring-cloud/spring-cloud-config/pom.xml b/spring-cloud/spring-cloud-config/pom.xml
index 1a4efc7a60..3d176ed403 100644
--- a/spring-cloud/spring-cloud-config/pom.xml
+++ b/spring-cloud/spring-cloud-config/pom.xml
@@ -1,16 +1,16 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://maven.apache.org/POM/4.0.0"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <groupId>com.baeldung.spring.cloud</groupId>
     <artifactId>spring-cloud-config</artifactId>
     <version>1.0-SNAPSHOT</version>
-	<name>spring-cloud-config</name>
+    <name>spring-cloud-config</name>
     <packaging>pom</packaging>
 
     <parent>
-        <artifactId>parent-boot-1</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-1</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../../parent-boot-1</relativePath>
     </parent>
diff --git a/spring-cloud/spring-cloud-config/server/pom.xml b/spring-cloud/spring-cloud-config/server/pom.xml
index 674749a48d..9574834457 100644
--- a/spring-cloud/spring-cloud-config/server/pom.xml
+++ b/spring-cloud/spring-cloud-config/server/pom.xml
@@ -4,7 +4,7 @@
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>server</artifactId>
-	<name>server</name>
+    <name>server</name>
 	
     <parent>
         <groupId>com.baeldung.spring.cloud</groupId>
@@ -16,11 +16,11 @@
         <dependency>
             <groupId>org.springframework.cloud</groupId>
             <artifactId>spring-cloud-config-server</artifactId>
-            </dependency>
+        </dependency>
         <dependency>
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-security</artifactId>
-            </dependency>
+        </dependency>
         <dependency>
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-web</artifactId>
@@ -37,7 +37,7 @@
             <plugin>
                 <groupId>org.springframework.boot</groupId>
                 <artifactId>spring-boot-maven-plugin</artifactId>
-                </plugin>
+            </plugin>
         </plugins>
     </build>
 
diff --git a/spring-cloud/spring-cloud-connectors-heroku/pom.xml b/spring-cloud/spring-cloud-connectors-heroku/pom.xml
index d2e9292511..1dad3ddcb7 100644
--- a/spring-cloud/spring-cloud-connectors-heroku/pom.xml
+++ b/spring-cloud/spring-cloud-connectors-heroku/pom.xml
@@ -1,15 +1,15 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <groupId>com.baeldung.spring.cloud</groupId>
     <artifactId>spring-cloud-connectors-heroku</artifactId>
     <version>1.0.0-SNAPSHOT</version>
-	<name>spring-cloud-connectors-heroku</name>
+    <name>spring-cloud-connectors-heroku</name>
 
     <parent>
-        <artifactId>parent-boot-1</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-1</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../../parent-boot-1</relativePath>
     </parent>
@@ -34,7 +34,7 @@
         <dependency>
             <groupId>org.postgresql</groupId>
             <artifactId>postgresql</artifactId>
-            </dependency>
+        </dependency>
         <dependency>
             <groupId>com.h2database</groupId>
             <artifactId>h2</artifactId>
@@ -58,4 +58,5 @@
         <spring-cloud-dependencies.version>Brixton.SR7</spring-cloud-dependencies.version>
         <postgresql.version>9.4-1201-jdbc4</postgresql.version>
     </properties>
+    
 </project>
\ No newline at end of file
diff --git a/spring-cloud/spring-cloud-consul/pom.xml b/spring-cloud/spring-cloud-consul/pom.xml
index 456a7ec302..b1f6acd9fe 100644
--- a/spring-cloud/spring-cloud-consul/pom.xml
+++ b/spring-cloud/spring-cloud-consul/pom.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://maven.apache.org/POM/4.0.0"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <groupId>org.baeldung</groupId>
     <artifactId>spring-cloud-consul</artifactId>
@@ -25,7 +25,7 @@
             <artifactId>spring-cloud-starter-consul-config</artifactId>
             <version>${spring-cloud-starter-consul.version}</version>
         </dependency>
-        
+
         <dependency>
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-test</artifactId>
diff --git a/spring-cloud/spring-cloud-contract/pom.xml b/spring-cloud/spring-cloud-contract/pom.xml
index a7ee52e954..2f868980db 100644
--- a/spring-cloud/spring-cloud-contract/pom.xml
+++ b/spring-cloud/spring-cloud-contract/pom.xml
@@ -1,11 +1,10 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung.spring.cloud</groupId>
     <artifactId>spring-cloud-contract</artifactId>
     <version>1.0.0-SNAPSHOT</version>
-	<name>spring-cloud-contract</name>
+    <name>spring-cloud-contract</name>
     <packaging>pom</packaging>
 
     <parent>
@@ -59,4 +58,5 @@
         <spring-cloud.version>2.1.1.RELEASE</spring-cloud.version>
         <spring-boot.version>2.1.4.RELEASE</spring-boot.version>
     </properties>
+    
 </project>
\ No newline at end of file
diff --git a/spring-cloud/spring-cloud-contract/spring-cloud-contract-consumer/pom.xml b/spring-cloud/spring-cloud-contract/spring-cloud-contract-consumer/pom.xml
index 3b711c58d9..7616032320 100644
--- a/spring-cloud/spring-cloud-contract/spring-cloud-contract-consumer/pom.xml
+++ b/spring-cloud/spring-cloud-contract/spring-cloud-contract-consumer/pom.xml
@@ -2,12 +2,11 @@
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung.spring.cloud</groupId>
     <artifactId>spring-cloud-contract-consumer</artifactId>
     <version>1.0.0-SNAPSHOT</version>
     <name>spring-cloud-contract-consumer</name>
-    <description>Spring Cloud Consumer Sample</description>
     <packaging>jar</packaging>
+    <description>Spring Cloud Consumer Sample</description>
 
     <parent>
         <groupId>com.baeldung.spring.cloud</groupId>
diff --git a/spring-cloud/spring-cloud-contract/spring-cloud-contract-producer/pom.xml b/spring-cloud/spring-cloud-contract/spring-cloud-contract-producer/pom.xml
index 7a0fa7db10..c41ad687ed 100644
--- a/spring-cloud/spring-cloud-contract/spring-cloud-contract-producer/pom.xml
+++ b/spring-cloud/spring-cloud-contract/spring-cloud-contract-producer/pom.xml
@@ -2,12 +2,11 @@
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung.spring.cloud</groupId>
     <artifactId>spring-cloud-contract-producer</artifactId>
     <version>1.0.0-SNAPSHOT</version>
     <name>spring-cloud-contract-producer</name>
-    <description>Spring Cloud Producer Sample</description>
     <packaging>jar</packaging>
+    <description>Spring Cloud Producer Sample</description>
 
     <parent>
         <groupId>com.baeldung.spring.cloud</groupId>
diff --git a/spring-cloud/spring-cloud-eureka-self-preservation/pom.xml b/spring-cloud/spring-cloud-eureka-self-preservation/pom.xml
index ce9272ed59..41ebba7d79 100644
--- a/spring-cloud/spring-cloud-eureka-self-preservation/pom.xml
+++ b/spring-cloud/spring-cloud-eureka-self-preservation/pom.xml
@@ -1,12 +1,12 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://maven.apache.org/POM/4.0.0"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <groupId>com.baeldung.spring.cloud.eureka</groupId>
     <artifactId>spring-cloud-eureka-self-preservation</artifactId>
     <name>spring-cloud-eureka-self-preservation</name>
-    <description>Spring Cloud Eureka Server Self Preservation</description>
     <packaging>pom</packaging>
+    <description>Spring Cloud Eureka Server Self Preservation</description>
 
     <parent>
         <groupId>com.baeldung.spring.cloud</groupId>
@@ -19,7 +19,7 @@
         <module>spring-cloud-eureka-server</module>
         <module>spring-cloud-eureka-client</module>
     </modules>
-    
+
     <dependencies>
         <dependency>
             <groupId>org.springframework.boot</groupId>
diff --git a/spring-cloud/spring-cloud-eureka-self-preservation/spring-cloud-eureka-client/pom.xml b/spring-cloud/spring-cloud-eureka-self-preservation/spring-cloud-eureka-client/pom.xml
index 2c522a8d9d..fc7d8bec33 100644
--- a/spring-cloud/spring-cloud-eureka-self-preservation/spring-cloud-eureka-client/pom.xml
+++ b/spring-cloud/spring-cloud-eureka-self-preservation/spring-cloud-eureka-client/pom.xml
@@ -1,11 +1,11 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://maven.apache.org/POM/4.0.0"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>spring-cloud-eureka-client</artifactId>
     <name>spring-cloud-eureka-client</name>
-    <description>Spring Cloud Eureka Sample Client</description>
     <packaging>jar</packaging>
+    <description>Spring Cloud Eureka Sample Client</description>
 
     <parent>
         <groupId>com.baeldung.spring.cloud.eureka</groupId>
@@ -14,17 +14,6 @@
         <relativePath>..</relativePath>
     </parent>
 
-    <dependencies>
-        <dependency>
-            <groupId>org.springframework.cloud</groupId>
-            <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
-        </dependency>
-        <dependency>
-            <groupId>org.springframework.boot</groupId>
-            <artifactId>spring-boot-starter-web</artifactId>
-        </dependency>
-    </dependencies>
-
     <dependencyManagement>
         <dependencies>
             <dependency>
@@ -37,4 +26,15 @@
         </dependencies>
     </dependencyManagement>
 
+    <dependencies>
+        <dependency>
+            <groupId>org.springframework.cloud</groupId>
+            <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-web</artifactId>
+        </dependency>
+    </dependencies>
+
 </project>
diff --git a/spring-cloud/spring-cloud-eureka-self-preservation/spring-cloud-eureka-server/pom.xml b/spring-cloud/spring-cloud-eureka-self-preservation/spring-cloud-eureka-server/pom.xml
index 7d9d9d33a8..02d1c8c354 100644
--- a/spring-cloud/spring-cloud-eureka-self-preservation/spring-cloud-eureka-server/pom.xml
+++ b/spring-cloud/spring-cloud-eureka-self-preservation/spring-cloud-eureka-server/pom.xml
@@ -1,11 +1,11 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://maven.apache.org/POM/4.0.0"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>spring-cloud-eureka-server</artifactId>
     <name>spring-cloud-eureka-server</name>
-    <description>Spring Cloud Eureka Server</description>
     <packaging>jar</packaging>
+    <description>Spring Cloud Eureka Server</description>
 
     <parent>
         <groupId>com.baeldung.spring.cloud.eureka</groupId>
@@ -14,13 +14,6 @@
         <relativePath>..</relativePath>
     </parent>
 
-    <dependencies>
-        <dependency>
-            <groupId>org.springframework.cloud</groupId>
-            <artifactId>spring-cloud-starter-netflix-eureka-server</artifactId>
-        </dependency>
-    </dependencies>
-
     <dependencyManagement>
         <dependencies>
             <dependency>
@@ -33,4 +26,11 @@
         </dependencies>
     </dependencyManagement>
 
+    <dependencies>
+        <dependency>
+            <groupId>org.springframework.cloud</groupId>
+            <artifactId>spring-cloud-starter-netflix-eureka-server</artifactId>
+        </dependency>
+    </dependencies>
+
 </project>
diff --git a/spring-cloud/spring-cloud-eureka/pom.xml b/spring-cloud/spring-cloud-eureka/pom.xml
index 5afb006d41..7af0c15352 100644
--- a/spring-cloud/spring-cloud-eureka/pom.xml
+++ b/spring-cloud/spring-cloud-eureka/pom.xml
@@ -1,13 +1,12 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://maven.apache.org/POM/4.0.0"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung.spring.cloud</groupId>
     <artifactId>spring-cloud-eureka</artifactId>
     <version>1.0.0-SNAPSHOT</version>
     <name>spring-cloud-eureka</name>
-    <description>Spring Cloud Eureka Server and Sample Clients</description>
     <packaging>pom</packaging>
+    <description>Spring Cloud Eureka Server and Sample Clients</description>
 
     <parent>
         <groupId>com.baeldung.spring.cloud</groupId>
@@ -21,7 +20,7 @@
         <module>spring-cloud-eureka-client</module>
         <module>spring-cloud-eureka-feign-client</module>
     </modules>
-    
+
     <dependencies>
         <dependency>
             <groupId>org.springframework.boot</groupId>
diff --git a/spring-cloud/spring-cloud-eureka/spring-cloud-eureka-client/pom.xml b/spring-cloud/spring-cloud-eureka/spring-cloud-eureka-client/pom.xml
index 04a5bd3e58..d82ee6566d 100644
--- a/spring-cloud/spring-cloud-eureka/spring-cloud-eureka-client/pom.xml
+++ b/spring-cloud/spring-cloud-eureka/spring-cloud-eureka-client/pom.xml
@@ -1,12 +1,12 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://maven.apache.org/POM/4.0.0"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>spring-cloud-eureka-client</artifactId>
     <version>1.0.0-SNAPSHOT</version>
     <name>spring-cloud-eureka-client</name>
-    <description>Spring Cloud Eureka Sample Client</description>
     <packaging>jar</packaging>
+    <description>Spring Cloud Eureka Sample Client</description>
 
     <parent>
         <groupId>com.baeldung.spring.cloud</groupId>
@@ -15,17 +15,6 @@
         <relativePath>..</relativePath>
     </parent>
 
-    <dependencies>
-        <dependency>
-            <groupId>org.springframework.cloud</groupId>
-            <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
-        </dependency>
-        <dependency>
-            <groupId>org.springframework.boot</groupId>
-            <artifactId>spring-boot-starter-web</artifactId>
-        </dependency>
-    </dependencies>
-
     <dependencyManagement>
         <dependencies>
             <dependency>
@@ -38,4 +27,15 @@
         </dependencies>
     </dependencyManagement>
 
+    <dependencies>
+        <dependency>
+            <groupId>org.springframework.cloud</groupId>
+            <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-web</artifactId>
+        </dependency>
+    </dependencies>
+
 </project>
diff --git a/spring-cloud/spring-cloud-eureka/spring-cloud-eureka-feign-client/pom.xml b/spring-cloud/spring-cloud-eureka/spring-cloud-eureka-feign-client/pom.xml
index acc436c574..1ecc50a81f 100644
--- a/spring-cloud/spring-cloud-eureka/spring-cloud-eureka-feign-client/pom.xml
+++ b/spring-cloud/spring-cloud-eureka/spring-cloud-eureka-feign-client/pom.xml
@@ -1,12 +1,12 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://maven.apache.org/POM/4.0.0"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>spring-cloud-eureka-feign-client</artifactId>
     <version>1.0.0-SNAPSHOT</version>
     <name>spring-cloud-eureka-feign-client</name>
-    <description>Spring Cloud Eureka - Sample Feign Client</description>
     <packaging>jar</packaging>
+    <description>Spring Cloud Eureka - Sample Feign Client</description>
 
     <parent>
         <groupId>com.baeldung.spring.cloud</groupId>
@@ -15,6 +15,18 @@
         <relativePath>..</relativePath>
     </parent>
 
+    <dependencyManagement>
+        <dependencies>
+            <dependency>
+                <groupId>org.springframework.cloud</groupId>
+                <artifactId>spring-cloud-starter-parent</artifactId>
+                <version>${spring-cloud-dependencies.version}</version>
+                <type>pom</type>
+                <scope>import</scope>
+            </dependency>
+        </dependencies>
+    </dependencyManagement>
+
     <dependencies>
         <dependency>
             <groupId>org.springframework.cloud</groupId>
@@ -34,15 +46,4 @@
         </dependency>
     </dependencies>
 
-    <dependencyManagement>
-        <dependencies>
-            <dependency>
-                <groupId>org.springframework.cloud</groupId>
-                <artifactId>spring-cloud-starter-parent</artifactId>
-                <version>${spring-cloud-dependencies.version}</version>
-                <type>pom</type>
-                <scope>import</scope>
-            </dependency>
-        </dependencies>
-    </dependencyManagement>
 </project>
diff --git a/spring-cloud/spring-cloud-eureka/spring-cloud-eureka-server/pom.xml b/spring-cloud/spring-cloud-eureka/spring-cloud-eureka-server/pom.xml
index 95edba29f9..627be513ba 100644
--- a/spring-cloud/spring-cloud-eureka/spring-cloud-eureka-server/pom.xml
+++ b/spring-cloud/spring-cloud-eureka/spring-cloud-eureka-server/pom.xml
@@ -1,12 +1,12 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://maven.apache.org/POM/4.0.0"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>spring-cloud-eureka-server</artifactId>
     <version>1.0.0-SNAPSHOT</version>
     <name>spring-cloud-eureka-server</name>
-    <description>Spring Cloud Eureka Server Demo</description>
     <packaging>jar</packaging>
+    <description>Spring Cloud Eureka Server Demo</description>
 
     <parent>
         <groupId>com.baeldung.spring.cloud</groupId>
@@ -15,13 +15,6 @@
         <relativePath>..</relativePath>
     </parent>
 
-    <dependencies>
-        <dependency>
-            <groupId>org.springframework.cloud</groupId>
-            <artifactId>spring-cloud-starter-netflix-eureka-server</artifactId>
-        </dependency>
-    </dependencies>
-
     <dependencyManagement>
         <dependencies>
             <dependency>
@@ -34,4 +27,11 @@
         </dependencies>
     </dependencyManagement>
 
+    <dependencies>
+        <dependency>
+            <groupId>org.springframework.cloud</groupId>
+            <artifactId>spring-cloud-starter-netflix-eureka-server</artifactId>
+        </dependency>
+    </dependencies>
+
 </project>
diff --git a/spring-cloud/spring-cloud-functions/pom.xml b/spring-cloud/spring-cloud-functions/pom.xml
index 82147cea28..2e1b747c2e 100644
--- a/spring-cloud/spring-cloud-functions/pom.xml
+++ b/spring-cloud/spring-cloud-functions/pom.xml
@@ -7,17 +7,16 @@
     <artifactId>spring-cloud-functions</artifactId>
     <version>0.0.1-SNAPSHOT</version>
     <name>spring-cloud-functions</name>
-    <description>Demo project for Spring Cloud Function</description>
     <packaging>jar</packaging>
+    <description>Demo project for Spring Cloud Function</description>
 
     <parent>
-        <artifactId>parent-boot-2</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-2</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../../parent-boot-2</relativePath>
     </parent>
-
-
+    
     <dependencies>
         <dependency>
             <groupId>org.springframework.cloud</groupId>
@@ -26,7 +25,7 @@
         </dependency>
         <!-- We don't need spring-cloud-starter-function-web when deploying to AWS-->
         <!-- It is used only for local testing-->
-         <dependency>
+        <dependency>
             <groupId>org.springframework.cloud</groupId>
             <artifactId>spring-cloud-starter-function-web</artifactId>
             <version>${spring-cloud-function.version}</version>
diff --git a/spring-cloud/spring-cloud-gateway/pom.xml b/spring-cloud/spring-cloud-gateway/pom.xml
index 61f0267ba0..10cd49cc04 100644
--- a/spring-cloud/spring-cloud-gateway/pom.xml
+++ b/spring-cloud/spring-cloud-gateway/pom.xml
@@ -1,11 +1,11 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xmlns="http://maven.apache.org/POM/4.0.0"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xmlns="http://maven.apache.org/POM/4.0.0"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>spring-cloud-gateway</artifactId>
-    <packaging>jar</packaging>
     <name>spring-cloud-gateway</name>
+    <packaging>jar</packaging>
 
     <parent>
         <groupId>com.baeldung.spring.cloud</groupId>
diff --git a/spring-cloud/spring-cloud-hystrix/feign-rest-consumer/pom.xml b/spring-cloud/spring-cloud-hystrix/feign-rest-consumer/pom.xml
index a345d6856b..367b7c111e 100644
--- a/spring-cloud/spring-cloud-hystrix/feign-rest-consumer/pom.xml
+++ b/spring-cloud/spring-cloud-hystrix/feign-rest-consumer/pom.xml
@@ -15,6 +15,18 @@
         <relativePath>..</relativePath>
     </parent>
 
+    <dependencyManagement>
+        <dependencies>
+            <dependency>
+                <groupId>org.springframework.cloud</groupId>
+                <artifactId>spring-cloud-starter-parent</artifactId>
+                <version>${spring-cloud-dependencies.version}</version>
+                <type>pom</type>
+                <scope>import</scope>
+            </dependency>
+        </dependencies>
+    </dependencyManagement>
+
     <dependencies>
         <dependency>
             <groupId>com.baeldung.spring.cloud</groupId>
@@ -46,25 +58,14 @@
             <artifactId>spring-boot-starter-actuator</artifactId>
         </dependency>
         <dependency>
-			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-starter-test</artifactId>
-			<scope>test</scope>
-		</dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-test</artifactId>
+            <scope>test</scope>
+        </dependency>
     </dependencies>
 
-    <dependencyManagement>
-        <dependencies>
-            <dependency>
-                <groupId>org.springframework.cloud</groupId>
-                <artifactId>spring-cloud-starter-parent</artifactId>
-                <version>${spring-cloud-dependencies.version}</version>
-                <type>pom</type>
-                <scope>import</scope>
-            </dependency>
-        </dependencies>
-    </dependencyManagement>
-
     <properties>
         <rest-producer.version>1.0.0-SNAPSHOT</rest-producer.version>
     </properties>
+
 </project>
diff --git a/spring-cloud/spring-cloud-hystrix/pom.xml b/spring-cloud/spring-cloud-hystrix/pom.xml
index 51f6a4e82b..4aec8050ff 100644
--- a/spring-cloud/spring-cloud-hystrix/pom.xml
+++ b/spring-cloud/spring-cloud-hystrix/pom.xml
@@ -3,7 +3,6 @@
          xmlns="http://maven.apache.org/POM/4.0.0"
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung.spring.cloud</groupId>
     <artifactId>spring-cloud-hystrix</artifactId>
     <version>1.0.0-SNAPSHOT</version>
     <name>spring-cloud-hystrix</name>
diff --git a/spring-cloud/spring-cloud-hystrix/rest-consumer/pom.xml b/spring-cloud/spring-cloud-hystrix/rest-consumer/pom.xml
index 43ccfcc26d..ba03ad3348 100644
--- a/spring-cloud/spring-cloud-hystrix/rest-consumer/pom.xml
+++ b/spring-cloud/spring-cloud-hystrix/rest-consumer/pom.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://maven.apache.org/POM/4.0.0"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>rest-consumer</artifactId>
     <version>1.0.0-SNAPSHOT</version>
@@ -14,6 +14,18 @@
         <relativePath>..</relativePath>
     </parent>
 
+    <dependencyManagement>
+        <dependencies>
+            <dependency>
+                <groupId>org.springframework.cloud</groupId>
+                <artifactId>spring-cloud-starter-parent</artifactId>
+                <version>${spring-cloud-dependencies.version}</version>
+                <type>pom</type>
+                <scope>import</scope>
+            </dependency>
+        </dependencies>
+    </dependencyManagement>
+
     <dependencies>
         <dependency>
             <groupId>org.springframework.cloud</groupId>
@@ -40,7 +52,7 @@
             <artifactId>spring-boot-starter-actuator</artifactId>
             <version>${spring-boot-starter-web.version}</version>
         </dependency>
-        
+
         <dependency>
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-test</artifactId>
@@ -49,18 +61,6 @@
         </dependency>
     </dependencies>
 
-    <dependencyManagement>
-        <dependencies>
-            <dependency>
-                <groupId>org.springframework.cloud</groupId>
-                <artifactId>spring-cloud-starter-parent</artifactId>
-                <version>${spring-cloud-dependencies.version}</version>
-                <type>pom</type>
-                <scope>import</scope>
-            </dependency>
-        </dependencies>
-    </dependencyManagement>
-    
     <properties>
         <!-- we need the Mockito version provided by Spring Boot -->
         <mockito.version>1.10.19</mockito.version>
diff --git a/spring-cloud/spring-cloud-hystrix/rest-producer/pom.xml b/spring-cloud/spring-cloud-hystrix/rest-producer/pom.xml
index 07437634f5..cb7377d705 100644
--- a/spring-cloud/spring-cloud-hystrix/rest-producer/pom.xml
+++ b/spring-cloud/spring-cloud-hystrix/rest-producer/pom.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://maven.apache.org/POM/4.0.0"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>rest-producer</artifactId>
     <version>1.0.0-SNAPSHOT</version>
@@ -20,7 +20,7 @@
             <artifactId>spring-boot-starter-web</artifactId>
             <version>${spring-boot-starter-web.version}</version>
         </dependency>
-        
+
         <dependency>
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-test</artifactId>
@@ -28,7 +28,7 @@
             <scope>test</scope>
         </dependency>
     </dependencies>
-    
+
     <properties>
         <!-- we need the Mockito version provided by Spring Boot -->
         <mockito.version>1.10.19</mockito.version>
diff --git a/spring-cloud/spring-cloud-kubernetes/client-service/pom.xml b/spring-cloud/spring-cloud-kubernetes/client-service/pom.xml
index 41e09fa13b..eb0b0fb580 100644
--- a/spring-cloud/spring-cloud-kubernetes/client-service/pom.xml
+++ b/spring-cloud/spring-cloud-kubernetes/client-service/pom.xml
@@ -1,9 +1,9 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>client-service</artifactId>
-	<name>client-service</name>
+    <name>client-service</name>
     <version>1.0-SNAPSHOT</version>
 
     <parent>
diff --git a/spring-cloud/spring-cloud-kubernetes/demo-backend/pom.xml b/spring-cloud/spring-cloud-kubernetes/demo-backend/pom.xml
index f7b04baec3..7c39338557 100644
--- a/spring-cloud/spring-cloud-kubernetes/demo-backend/pom.xml
+++ b/spring-cloud/spring-cloud-kubernetes/demo-backend/pom.xml
@@ -1,10 +1,10 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>demo-backend</artifactId>
-	<name>demo-backend</name>
-	
+    <name>demo-backend</name>
+
     <parent>
         <groupId>com.baeldung.spring.cloud</groupId>
         <artifactId>spring-cloud-kubernetes</artifactId>
diff --git a/spring-cloud/spring-cloud-kubernetes/demo-frontend/pom.xml b/spring-cloud/spring-cloud-kubernetes/demo-frontend/pom.xml
index da55ca5034..aaba6d0503 100644
--- a/spring-cloud/spring-cloud-kubernetes/demo-frontend/pom.xml
+++ b/spring-cloud/spring-cloud-kubernetes/demo-frontend/pom.xml
@@ -1,10 +1,10 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>demo-frontend</artifactId>
-	<name>demo-frontend</name>
-	
+    <name>demo-frontend</name>
+
     <parent>
         <groupId>com.baeldung.spring.cloud</groupId>
         <artifactId>spring-cloud-kubernetes</artifactId>
diff --git a/spring-cloud/spring-cloud-kubernetes/liveness-example/pom.xml b/spring-cloud/spring-cloud-kubernetes/liveness-example/pom.xml
index 293b215918..4dc25deec0 100644
--- a/spring-cloud/spring-cloud-kubernetes/liveness-example/pom.xml
+++ b/spring-cloud/spring-cloud-kubernetes/liveness-example/pom.xml
@@ -4,12 +4,12 @@
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>liveness-example</artifactId>
-	<name>liveness-example</name>
+    <name>liveness-example</name>
     <version>1.0-SNAPSHOT</version>
 
     <parent>
-        <artifactId>parent-boot-1</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-1</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../../../parent-boot-1</relativePath>
     </parent>
diff --git a/spring-cloud/spring-cloud-kubernetes/pom.xml b/spring-cloud/spring-cloud-kubernetes/pom.xml
index a9563fc582..561c44add3 100644
--- a/spring-cloud/spring-cloud-kubernetes/pom.xml
+++ b/spring-cloud/spring-cloud-kubernetes/pom.xml
@@ -1,16 +1,16 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <groupId>com.baeldung.spring.cloud</groupId>
     <artifactId>spring-cloud-kubernetes</artifactId>
     <version>1.0-SNAPSHOT</version>
-	<name>spring-cloud-kubernetes</name>
+    <name>spring-cloud-kubernetes</name>
     <packaging>pom</packaging>
 
     <parent>
-        <artifactId>parent-boot-2</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-2</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../../parent-boot-2</relativePath>
     </parent>
diff --git a/spring-cloud/spring-cloud-kubernetes/readiness-example/pom.xml b/spring-cloud/spring-cloud-kubernetes/readiness-example/pom.xml
index 07589e65b6..5a10161200 100644
--- a/spring-cloud/spring-cloud-kubernetes/readiness-example/pom.xml
+++ b/spring-cloud/spring-cloud-kubernetes/readiness-example/pom.xml
@@ -4,12 +4,12 @@
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>readiness-example</artifactId>
-	<name>readiness-example</name>
+    <name>readiness-example</name>
     <version>1.0-SNAPSHOT</version>
 
     <parent>
-        <artifactId>parent-boot-1</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-1</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../../../parent-boot-1</relativePath>
     </parent>
diff --git a/spring-cloud/spring-cloud-kubernetes/travel-agency-service/pom.xml b/spring-cloud/spring-cloud-kubernetes/travel-agency-service/pom.xml
index 0d7639b179..32fe0ff277 100755
--- a/spring-cloud/spring-cloud-kubernetes/travel-agency-service/pom.xml
+++ b/spring-cloud/spring-cloud-kubernetes/travel-agency-service/pom.xml
@@ -1,5 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>travel-agency-service</artifactId>
     <version>1.0-SNAPSHOT</version>
diff --git a/spring-cloud/spring-cloud-openfeign/pom.xml b/spring-cloud/spring-cloud-openfeign/pom.xml
index 92de33572b..e20fe338c1 100644
--- a/spring-cloud/spring-cloud-openfeign/pom.xml
+++ b/spring-cloud/spring-cloud-openfeign/pom.xml
@@ -2,7 +2,6 @@
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-
     <groupId>com.baeldung.cloud</groupId>
     <artifactId>openfeign</artifactId>
     <version>0.0.1-SNAPSHOT</version>
@@ -10,12 +9,24 @@
     <description>OpenFeign project for Spring Boot</description>
 
     <parent>
-        <artifactId>parent-boot-2</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-2</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../../parent-boot-2</relativePath>
     </parent>
 
+    <dependencyManagement>
+        <dependencies>
+            <dependency>
+                <groupId>org.springframework.cloud</groupId>
+                <artifactId>spring-cloud-dependencies</artifactId>
+                <version>${spring-cloud.version}</version>
+                <type>pom</type>
+                <scope>import</scope>
+            </dependency>
+        </dependencies>
+    </dependencyManagement>
+
     <dependencies>
         <dependency>
             <groupId>org.springframework.cloud</groupId>
@@ -39,18 +50,6 @@
         </dependency>
     </dependencies>
 
-    <dependencyManagement>
-        <dependencies>
-            <dependency>
-                <groupId>org.springframework.cloud</groupId>
-                <artifactId>spring-cloud-dependencies</artifactId>
-                <version>${spring-cloud.version}</version>
-                <type>pom</type>
-                <scope>import</scope>
-            </dependency>
-        </dependencies>
-    </dependencyManagement>
-
     <properties>
         <spring-boot.version>2.0.1.RELEASE</spring-boot.version>
         <spring-cloud.version>Finchley.SR2</spring-cloud.version>
diff --git a/spring-cloud/spring-cloud-rest/pom.xml b/spring-cloud/spring-cloud-rest/pom.xml
index 7f316f47fc..8677b742de 100644
--- a/spring-cloud/spring-cloud-rest/pom.xml
+++ b/spring-cloud/spring-cloud-rest/pom.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://maven.apache.org/POM/4.0.0"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <groupId>org.baeldung</groupId>
     <artifactId>spring-cloud-rest</artifactId>
diff --git a/spring-cloud/spring-cloud-rest/spring-cloud-rest-books-api/pom.xml b/spring-cloud/spring-cloud-rest/spring-cloud-rest-books-api/pom.xml
index a196ed8531..b34e325eb8 100644
--- a/spring-cloud/spring-cloud-rest/spring-cloud-rest-books-api/pom.xml
+++ b/spring-cloud/spring-cloud-rest/spring-cloud-rest-books-api/pom.xml
@@ -1,21 +1,33 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <groupId>org.baeldung</groupId>
     <artifactId>spring-cloud-rest-books-api</artifactId>
     <version>0.0.1-SNAPSHOT</version>
     <name>spring-cloud-rest-books-api</name>
-    <description>Simple books API</description>
     <packaging>jar</packaging>
+    <description>Simple books API</description>
 
     <parent>
-        <artifactId>parent-boot-1</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-1</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../../../parent-boot-1</relativePath>
     </parent>
 
+    <dependencyManagement>
+        <dependencies>
+            <dependency>
+                <groupId>org.springframework.cloud</groupId>
+                <artifactId>spring-cloud-dependencies</artifactId>
+                <version>Camden.SR4</version>
+                <type>pom</type>
+                <scope>import</scope>
+            </dependency>
+        </dependencies>
+    </dependencyManagement>
+
     <dependencies>
         <dependency>
             <groupId>org.springframework.cloud</groupId>
@@ -56,16 +68,4 @@
 
     </dependencies>
 
-    <dependencyManagement>
-        <dependencies>
-            <dependency>
-                <groupId>org.springframework.cloud</groupId>
-                <artifactId>spring-cloud-dependencies</artifactId>
-                <version>Camden.SR4</version>
-                <type>pom</type>
-                <scope>import</scope>
-            </dependency>
-        </dependencies>
-    </dependencyManagement>
-
 </project>
diff --git a/spring-cloud/spring-cloud-rest/spring-cloud-rest-config-server/pom.xml b/spring-cloud/spring-cloud-rest/spring-cloud-rest-config-server/pom.xml
index 7a71cdb13b..b3bb6fafdc 100644
--- a/spring-cloud/spring-cloud-rest/spring-cloud-rest-config-server/pom.xml
+++ b/spring-cloud/spring-cloud-rest/spring-cloud-rest-config-server/pom.xml
@@ -1,21 +1,33 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <groupId>org.baeldung</groupId>
     <artifactId>spring-cloud-rest-config-server</artifactId>
     <version>0.0.1-SNAPSHOT</version>
     <name>spring-cloud-rest-config-server</name>
-    <description>Spring Cloud REST configuration server</description>
     <packaging>jar</packaging>
+    <description>Spring Cloud REST configuration server</description>
 
     <parent>
-        <artifactId>parent-boot-1</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-1</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../../../parent-boot-1</relativePath>
     </parent>
 
+    <dependencyManagement>
+        <dependencies>
+            <dependency>
+                <groupId>org.springframework.cloud</groupId>
+                <artifactId>spring-cloud-dependencies</artifactId>
+                <version>${spring-cloud.version}</version>
+                <type>pom</type>
+                <scope>import</scope>
+            </dependency>
+        </dependencies>
+    </dependencyManagement>
+
     <dependencies>
         <dependency>
             <groupId>org.springframework.cloud</groupId>
@@ -31,18 +43,6 @@
         </dependency>
     </dependencies>
 
-    <dependencyManagement>
-        <dependencies>
-            <dependency>
-                <groupId>org.springframework.cloud</groupId>
-                <artifactId>spring-cloud-dependencies</artifactId>
-                <version>${spring-cloud.version}</version>
-                <type>pom</type>
-                <scope>import</scope>
-            </dependency>
-        </dependencies>
-    </dependencyManagement>
-
     <properties>
         <spring-cloud.version>Camden.SR4</spring-cloud.version>
     </properties>
diff --git a/spring-cloud/spring-cloud-rest/spring-cloud-rest-discovery-server/pom.xml b/spring-cloud/spring-cloud-rest/spring-cloud-rest-discovery-server/pom.xml
index 7ce04f2815..aec51ca38a 100644
--- a/spring-cloud/spring-cloud-rest/spring-cloud-rest-discovery-server/pom.xml
+++ b/spring-cloud/spring-cloud-rest/spring-cloud-rest-discovery-server/pom.xml
@@ -1,21 +1,33 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <groupId>org.baeldung</groupId>
     <artifactId>spring-cloud-rest-discovery-server</artifactId>
     <version>0.0.1-SNAPSHOT</version>
     <name>spring-cloud-rest-discovery-server</name>
-    <description>Spring Cloud REST server</description>
     <packaging>jar</packaging>
+    <description>Spring Cloud REST server</description>
 
     <parent>
-        <artifactId>parent-boot-1</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-1</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../../../parent-boot-1</relativePath>
     </parent>
 
+    <dependencyManagement>
+        <dependencies>
+            <dependency>
+                <groupId>org.springframework.cloud</groupId>
+                <artifactId>spring-cloud-dependencies</artifactId>
+                <version>${spring-cloud.version}</version>
+                <type>pom</type>
+                <scope>import</scope>
+            </dependency>
+        </dependencies>
+    </dependencyManagement>
+
     <dependencies>
         <dependency>
             <groupId>org.springframework.cloud</groupId>
@@ -39,18 +51,6 @@
         </dependency>
     </dependencies>
 
-    <dependencyManagement>
-        <dependencies>
-            <dependency>
-                <groupId>org.springframework.cloud</groupId>
-                <artifactId>spring-cloud-dependencies</artifactId>
-                <version>${spring-cloud.version}</version>
-                <type>pom</type>
-                <scope>import</scope>
-            </dependency>
-        </dependencies>
-    </dependencyManagement>
-
     <properties>
         <spring-cloud.version>Edgware.SR4</spring-cloud.version>
     </properties>
diff --git a/spring-cloud/spring-cloud-rest/spring-cloud-rest-reviews-api/pom.xml b/spring-cloud/spring-cloud-rest/spring-cloud-rest-reviews-api/pom.xml
index cd7749460e..161b996496 100644
--- a/spring-cloud/spring-cloud-rest/spring-cloud-rest-reviews-api/pom.xml
+++ b/spring-cloud/spring-cloud-rest/spring-cloud-rest-reviews-api/pom.xml
@@ -1,21 +1,33 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <groupId>org.baeldung</groupId>
     <artifactId>spring-cloud-rest-reviews-api</artifactId>
     <version>0.0.1-SNAPSHOT</version>
     <name>spring-cloud-rest-reviews-api</name>
-    <description>Simple reviews API</description>
     <packaging>jar</packaging>
+    <description>Simple reviews API</description>
 
     <parent>
-        <artifactId>parent-boot-1</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-1</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../../../parent-boot-1</relativePath>
     </parent>
 
+    <dependencyManagement>
+        <dependencies>
+            <dependency>
+                <groupId>org.springframework.cloud</groupId>
+                <artifactId>spring-cloud-dependencies</artifactId>
+                <version>Camden.SR4</version>
+                <type>pom</type>
+                <scope>import</scope>
+            </dependency>
+        </dependencies>
+    </dependencyManagement>
+
     <dependencies>
         <dependency>
             <groupId>org.springframework.cloud</groupId>
@@ -60,18 +72,6 @@
         </dependency>
     </dependencies>
 
-    <dependencyManagement>
-        <dependencies>
-            <dependency>
-                <groupId>org.springframework.cloud</groupId>
-                <artifactId>spring-cloud-dependencies</artifactId>
-                <version>Camden.SR4</version>
-                <type>pom</type>
-                <scope>import</scope>
-            </dependency>
-        </dependencies>
-    </dependencyManagement>
-
     <properties>
         <rest-assured.version>3.0.1</rest-assured.version>
         <embedded-redis.version>0.6</embedded-redis.version>
diff --git a/spring-cloud/spring-cloud-ribbon-client/pom.xml b/spring-cloud/spring-cloud-ribbon-client/pom.xml
index f677009a41..ac86447164 100644
--- a/spring-cloud/spring-cloud-ribbon-client/pom.xml
+++ b/spring-cloud/spring-cloud-ribbon-client/pom.xml
@@ -1,7 +1,6 @@
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung</groupId>
     <artifactId>spring-cloud-ribbon-client</artifactId>
     <version>0.0.1-SNAPSHOT</version>
     <name>spring-cloud-ribbon-client</name>
@@ -9,23 +8,12 @@
     <description>Introduction to Spring Cloud Rest Client with Netflix Ribbon</description>
 
     <parent>
-        <artifactId>parent-boot-1</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-1</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../../parent-boot-1</relativePath>
     </parent>
 
-    <dependencies>
-        <dependency>
-            <groupId>org.springframework.cloud</groupId>
-            <artifactId>spring-cloud-starter-ribbon</artifactId>
-        </dependency>
-        <dependency>
-            <groupId>org.springframework.boot</groupId>
-            <artifactId>spring-boot-starter-web</artifactId>
-        </dependency>
-    </dependencies>
-
     <dependencyManagement>
         <dependencies>
             <dependency>
@@ -38,6 +26,17 @@
         </dependencies>
     </dependencyManagement>
 
+    <dependencies>
+        <dependency>
+            <groupId>org.springframework.cloud</groupId>
+            <artifactId>spring-cloud-starter-ribbon</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-web</artifactId>
+        </dependency>
+    </dependencies>
+
     <properties>
         <spring-cloud-dependencies.version>Brixton.SR7</spring-cloud-dependencies.version>
     </properties>
diff --git a/spring-cloud/spring-cloud-security/auth-client/pom.xml b/spring-cloud/spring-cloud-security/auth-client/pom.xml
index c414e584e5..2852638c1a 100644
--- a/spring-cloud/spring-cloud-security/auth-client/pom.xml
+++ b/spring-cloud/spring-cloud-security/auth-client/pom.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>auth-client</artifactId>
     <name>auth-client</name>
@@ -8,8 +8,8 @@
     <description>Spring Cloud Security APP Client Module</description>
 
     <parent>
-        <artifactId>spring-cloud-security</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>spring-cloud-security</artifactId>
         <version>1.0.0-SNAPSHOT</version>
     </parent>
 
diff --git a/spring-cloud/spring-cloud-security/auth-resource/pom.xml b/spring-cloud/spring-cloud-security/auth-resource/pom.xml
index a60eca740c..0a642250e7 100644
--- a/spring-cloud/spring-cloud-security/auth-resource/pom.xml
+++ b/spring-cloud/spring-cloud-security/auth-resource/pom.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>auth-resource</artifactId>
     <name>auth-resource</name>
@@ -8,11 +8,23 @@
     <description>Spring Cloud Security APP Resource Module</description>
 
     <parent>
-        <artifactId>spring-cloud-security</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>spring-cloud-security</artifactId>
         <version>1.0.0-SNAPSHOT</version>
     </parent>
 
+    <dependencyManagement>
+        <dependencies>
+            <dependency>
+                <groupId>org.springframework.cloud</groupId>
+                <artifactId>spring-cloud-dependencies</artifactId>
+                <version>${spring-cloud.version}</version>
+                <type>pom</type>
+                <scope>import</scope>
+            </dependency>
+        </dependencies>
+    </dependencyManagement>
+
     <dependencies>
         <dependency>
             <groupId>org.springframework.boot</groupId>
@@ -34,18 +46,6 @@
         </dependency>
     </dependencies>
 
-    <dependencyManagement>
-        <dependencies>
-            <dependency>
-                <groupId>org.springframework.cloud</groupId>
-                <artifactId>spring-cloud-dependencies</artifactId>
-                <version>${spring-cloud.version}</version>
-                <type>pom</type>
-                <scope>import</scope>
-            </dependency>
-        </dependencies>
-    </dependencyManagement>
-
     <build>
         <plugins>
             <plugin>
diff --git a/spring-cloud/spring-cloud-security/auth-server/pom.xml b/spring-cloud/spring-cloud-security/auth-server/pom.xml
index afd8dbef44..f6d0861552 100644
--- a/spring-cloud/spring-cloud-security/auth-server/pom.xml
+++ b/spring-cloud/spring-cloud-security/auth-server/pom.xml
@@ -1,14 +1,14 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>auth-server</artifactId>
-	<name>auth-server</name>
+    <name>auth-server</name>
     <description>Spring Cloud Security APP Server Module</description>
-	
+
     <parent>
-        <artifactId>spring-cloud-security</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>spring-cloud-security</artifactId>
         <version>1.0.0-SNAPSHOT</version>
     </parent>
 
@@ -36,7 +36,7 @@
             <version>${spring-cloud-starter-oauth2.version}</version>
         </dependency>
     </dependencies>
-    
+
     <properties>
         <spring-cloud-starter-oauth2.version>2.1.2.RELEASE</spring-cloud-starter-oauth2.version>
     </properties>
diff --git a/spring-cloud/spring-cloud-security/pom.xml b/spring-cloud/spring-cloud-security/pom.xml
index d65fd6520b..498c88ac48 100644
--- a/spring-cloud/spring-cloud-security/pom.xml
+++ b/spring-cloud/spring-cloud-security/pom.xml
@@ -1,23 +1,23 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://maven.apache.org/POM/4.0.0"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>spring-cloud-security</artifactId>
     <version>1.0.0-SNAPSHOT</version>
     <name>spring-cloud-security</name>
     <packaging>pom</packaging>
 
-   <parent>
-        <artifactId>parent-boot-2</artifactId>
+    <parent>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-2</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../../parent-boot-2</relativePath>
     </parent>
-    
+
     <modules>
         <module>auth-client</module>
-		<module>auth-resource</module>
-		<module>auth-server</module>
+        <module>auth-resource</module>
+        <module>auth-server</module>
     </modules>
 
 </project>
diff --git a/spring-cloud/spring-cloud-stream-starters/twitterhdfs/pom.xml b/spring-cloud/spring-cloud-stream-starters/twitterhdfs/pom.xml
index 8846773338..1cfbf7e7c8 100644
--- a/spring-cloud/spring-cloud-stream-starters/twitterhdfs/pom.xml
+++ b/spring-cloud/spring-cloud-stream-starters/twitterhdfs/pom.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://maven.apache.org/POM/4.0.0"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <groupId>com.baeldung.twitterhdfs</groupId>
     <artifactId>twitterhdfs</artifactId>
@@ -9,8 +9,8 @@
     <packaging>jar</packaging>
 
     <parent>
-        <artifactId>parent-boot-1</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-1</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../../../parent-boot-1</relativePath>
     </parent>
diff --git a/spring-cloud/spring-cloud-stream/pom.xml b/spring-cloud/spring-cloud-stream/pom.xml
index 76a51cc3ca..df17b778da 100644
--- a/spring-cloud/spring-cloud-stream/pom.xml
+++ b/spring-cloud/spring-cloud-stream/pom.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://maven.apache.org/POM/4.0.0"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <groupId>org.baeldung</groupId>
     <artifactId>spring-cloud-stream</artifactId>
diff --git a/spring-cloud/spring-cloud-stream/spring-cloud-stream-kafka/pom.xml b/spring-cloud/spring-cloud-stream/spring-cloud-stream-kafka/pom.xml
index 2ba9d55358..3a4cf6c56e 100644
--- a/spring-cloud/spring-cloud-stream/spring-cloud-stream-kafka/pom.xml
+++ b/spring-cloud/spring-cloud-stream/spring-cloud-stream-kafka/pom.xml
@@ -1,11 +1,11 @@
 <project xmlns="http://maven.apache.org/POM/4.0.0"
-    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>spring-cloud-stream-kafka</artifactId>
     <name>spring-cloud-stream-kafka</name>
-    <description>Simple Spring Cloud Stream</description>
     <packaging>jar</packaging>
+    <description>Simple Spring Cloud Stream</description>
 
     <parent>
         <groupId>org.springframework.boot</groupId>
@@ -13,6 +13,18 @@
         <version>2.1.5.RELEASE</version>
     </parent>
 
+    <dependencyManagement>
+        <dependencies>
+            <dependency>
+                <groupId>org.springframework.cloud</groupId>
+                <artifactId>spring-cloud-dependencies</artifactId>
+                <version>${spring-cloud.version}</version>
+                <type>pom</type>
+                <scope>import</scope>
+            </dependency>
+        </dependencies>
+    </dependencyManagement>
+
     <dependencies>
 
         <dependency>
@@ -51,18 +63,6 @@
 
     </dependencies>
 
-    <dependencyManagement>
-        <dependencies>
-            <dependency>
-                <groupId>org.springframework.cloud</groupId>
-                <artifactId>spring-cloud-dependencies</artifactId>
-                <version>${spring-cloud.version}</version>
-                <type>pom</type>
-                <scope>import</scope>
-            </dependency>
-        </dependencies>
-    </dependencyManagement>
-
     <build>
         <plugins>
             <plugin>
diff --git a/spring-cloud/spring-cloud-stream/spring-cloud-stream-rabbit/pom.xml b/spring-cloud/spring-cloud-stream/spring-cloud-stream-rabbit/pom.xml
index 1649cfc0b5..4273bd8701 100644
--- a/spring-cloud/spring-cloud-stream/spring-cloud-stream-rabbit/pom.xml
+++ b/spring-cloud/spring-cloud-stream/spring-cloud-stream-rabbit/pom.xml
@@ -4,8 +4,8 @@
     <modelVersion>4.0.0</modelVersion>
     <artifactId>spring-cloud-stream-rabbit</artifactId>
     <name>spring-cloud-stream-rabbit</name>
-    <description>Simple Spring Cloud Stream</description>
     <packaging>jar</packaging>
+    <description>Simple Spring Cloud Stream</description>
 
     <parent>
         <groupId>org.baeldung</groupId>
diff --git a/spring-cloud/spring-cloud-task/pom.xml b/spring-cloud/spring-cloud-task/pom.xml
index 7c2c0d17f2..377d16a999 100644
--- a/spring-cloud/spring-cloud-task/pom.xml
+++ b/spring-cloud/spring-cloud-task/pom.xml
@@ -1,16 +1,16 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://maven.apache.org/POM/4.0.0"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <groupId>com.baeldung.spring.cloud</groupId>
     <artifactId>spring-cloud-task</artifactId>
     <version>1.0.0-SNAPSHOT</version>
-	<name>spring-cloud-task</name>
+    <name>spring-cloud-task</name>
     <packaging>pom</packaging>
 
     <parent>
-        <artifactId>parent-boot-1</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-1</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../../parent-boot-1</relativePath>
     </parent>
@@ -22,7 +22,7 @@
 
     <dependencyManagement>
         <dependencies>
-	        <dependency>
+            <dependency>
                 <groupId>org.springframework.cloud</groupId>
                 <artifactId>spring-cloud-task-dependencies</artifactId>
                 <version>${spring-cloud-task.version}</version>
diff --git a/spring-cloud/spring-cloud-task/springcloudtaskbatch/pom.xml b/spring-cloud/spring-cloud-task/springcloudtaskbatch/pom.xml
index b6b5a1cf0f..be920bb93d 100644
--- a/spring-cloud/spring-cloud-task/springcloudtaskbatch/pom.xml
+++ b/spring-cloud/spring-cloud-task/springcloudtaskbatch/pom.xml
@@ -1,14 +1,15 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0"
-    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <groupId>org.baeldung.cloud</groupId>
     <artifactId>springcloudtaskbatch</artifactId>
     <name>springcloudtaskbatch</name>
 
     <parent>
-        <artifactId>spring-cloud-task</artifactId>
         <groupId>com.baeldung.spring.cloud</groupId>
+        <artifactId>spring-cloud-task</artifactId>
         <version>1.0.0-SNAPSHOT</version>
     </parent>
 
diff --git a/spring-cloud/spring-cloud-task/springcloudtasksink/pom.xml b/spring-cloud/spring-cloud-task/springcloudtasksink/pom.xml
index 03bfe7b1cb..441924f1d3 100644
--- a/spring-cloud/spring-cloud-task/springcloudtasksink/pom.xml
+++ b/spring-cloud/spring-cloud-task/springcloudtasksink/pom.xml
@@ -1,15 +1,15 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>SpringCloudTaskSink</artifactId>
     <name>SpringCloudTaskSink</name>
     <packaging>jar</packaging>
     <description>Demo project for Spring Boot</description>
 
-   	<parent>
-        <artifactId>spring-cloud-task</artifactId>
+    <parent>
         <groupId>com.baeldung.spring.cloud</groupId>
+        <artifactId>spring-cloud-task</artifactId>
         <version>1.0.0-SNAPSHOT</version>
     </parent>
 
diff --git a/spring-cloud/spring-cloud-vault/pom.xml b/spring-cloud/spring-cloud-vault/pom.xml
index faf27b6ac8..cbb32ac937 100644
--- a/spring-cloud/spring-cloud-vault/pom.xml
+++ b/spring-cloud/spring-cloud-vault/pom.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <groupId>org.baeldung.spring.cloud</groupId>
     <artifactId>spring-cloud-vault</artifactId>
@@ -15,6 +15,18 @@
         <relativePath>../../parent-boot-2</relativePath>
     </parent>
 
+    <dependencyManagement>
+        <dependencies>
+            <dependency>
+                <groupId>org.springframework.cloud</groupId>
+                <artifactId>spring-cloud-dependencies</artifactId>
+                <version>${spring-cloud.version}</version>
+                <type>pom</type>
+                <scope>import</scope>
+            </dependency>
+        </dependencies>
+    </dependencyManagement>
+
     <dependencies>
 
         <dependency>
@@ -43,31 +55,19 @@
             <artifactId>spring-boot-starter-jdbc</artifactId>
         </dependency>
         <dependency>
-        	<groupId>org.springframework.boot</groupId>
-        	<artifactId>spring-boot-devtools</artifactId>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-devtools</artifactId>
         </dependency>
         <dependency>
-        	<groupId>org.springframework.boot</groupId>
-        	<artifactId>spring-boot-starter-web</artifactId>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-web</artifactId>
         </dependency>
         <dependency>
-        	<groupId>org.springframework.boot</groupId>
-        	<artifactId>spring-boot-starter-data-jpa</artifactId>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-data-jpa</artifactId>
         </dependency>
     </dependencies>
 
-    <dependencyManagement>
-        <dependencies>
-            <dependency>
-                <groupId>org.springframework.cloud</groupId>
-                <artifactId>spring-cloud-dependencies</artifactId>
-                <version>${spring-cloud.version}</version>
-                <type>pom</type>
-                <scope>import</scope>
-            </dependency>
-        </dependencies>
-    </dependencyManagement>
-
     <build>
         <plugins>
             <plugin>
diff --git a/spring-cloud/spring-cloud-zookeeper/Greeting/pom.xml b/spring-cloud/spring-cloud-zookeeper/Greeting/pom.xml
index 2da47cf40d..b0ee448e87 100644
--- a/spring-cloud/spring-cloud-zookeeper/Greeting/pom.xml
+++ b/spring-cloud/spring-cloud-zookeeper/Greeting/pom.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>Greeting</artifactId>
     <name>Greeting</name>
@@ -12,6 +12,18 @@
         <version>1.0.0-SNAPSHOT</version>
     </parent>
 
+    <dependencyManagement>
+        <dependencies>
+            <dependency>
+                <groupId>org.springframework.cloud</groupId>
+                <artifactId>spring-cloud-dependencies</artifactId> <!--changed -->
+                <version>${spring-cloud-dependencies.version}</version> <!--changed -->
+                <type>pom</type>
+                <scope>import</scope>
+            </dependency>
+        </dependencies>
+    </dependencyManagement>
+
     <dependencies>
         <dependency>
             <groupId>org.springframework.boot</groupId>
@@ -52,18 +64,6 @@
         </dependency>
     </dependencies>
 
-    <dependencyManagement>
-        <dependencies>
-            <dependency>
-                <groupId>org.springframework.cloud</groupId>
-                <artifactId>spring-cloud-dependencies</artifactId> <!--changed -->
-                <version>${spring-cloud-dependencies.version}</version> <!--changed -->
-                <type>pom</type>
-                <scope>import</scope>
-            </dependency>
-        </dependencies>
-    </dependencyManagement>
-
     <properties>
         <spring-cloud-starter-feign.version>1.2.5.RELEASE</spring-cloud-starter-feign.version>
         <hamcrest.version>1.3</hamcrest.version>
diff --git a/spring-cloud/spring-cloud-zookeeper/HelloWorld/pom.xml b/spring-cloud/spring-cloud-zookeeper/HelloWorld/pom.xml
index 0da0f7503e..3a263e4ded 100644
--- a/spring-cloud/spring-cloud-zookeeper/HelloWorld/pom.xml
+++ b/spring-cloud/spring-cloud-zookeeper/HelloWorld/pom.xml
@@ -1,17 +1,29 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>HelloWorld</artifactId>
-    <packaging>jar</packaging>
     <name>HelloWorld</name>
-    
+    <packaging>jar</packaging>
+
     <parent>
         <groupId>com.baeldung.spring.cloud</groupId>
         <artifactId>spring-cloud-zookeeper</artifactId>
         <version>1.0.0-SNAPSHOT</version>
     </parent>
 
+    <dependencyManagement>
+        <dependencies>
+            <dependency>
+                <groupId>org.springframework.cloud</groupId>
+                <artifactId>spring-cloud-dependencies</artifactId> <!--changed -->
+                <version>${spring-cloud-dependencies.version}</version> <!--changed -->
+                <type>pom</type>
+                <scope>import</scope>
+            </dependency>
+        </dependencies>
+    </dependencyManagement>
+
     <dependencies>
         <dependency>
             <groupId>org.springframework.boot</groupId>
@@ -42,18 +54,6 @@
         </dependency>
     </dependencies>
 
-    <dependencyManagement>
-        <dependencies>
-            <dependency>
-                <groupId>org.springframework.cloud</groupId>
-                <artifactId>spring-cloud-dependencies</artifactId> <!--changed -->
-                <version>${spring-cloud-dependencies.version}</version> <!--changed -->
-                <type>pom</type>
-                <scope>import</scope>
-            </dependency>
-        </dependencies>
-    </dependencyManagement>
-
     <build>
         <plugins>
             <plugin>
diff --git a/spring-cloud/spring-cloud-zookeeper/pom.xml b/spring-cloud/spring-cloud-zookeeper/pom.xml
index 4ea9b22e9d..64d30b19a6 100644
--- a/spring-cloud/spring-cloud-zookeeper/pom.xml
+++ b/spring-cloud/spring-cloud-zookeeper/pom.xml
@@ -1,11 +1,11 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>spring-cloud-zookeeper</artifactId>
-	<name>spring-cloud-zookeeper</name>
+    <name>spring-cloud-zookeeper</name>
     <packaging>pom</packaging>
-	
+
     <parent>
         <groupId>com.baeldung.spring.cloud</groupId>
         <artifactId>spring-cloud</artifactId>
@@ -22,5 +22,5 @@
         <springframework.version>4.3.7.RELEASE</springframework.version>
         <spring-cloud-starter-zookeeper-discovery.version>1.0.3.RELEASE</spring-cloud-starter-zookeeper-discovery.version>
     </properties>
-    
+
 </project>
\ No newline at end of file
diff --git a/spring-cloud/spring-cloud-zuul-eureka-integration/bin/eureka-client/pom.xml b/spring-cloud/spring-cloud-zuul-eureka-integration/bin/eureka-client/pom.xml
index 9c075ebfe3..118a9e2c11 100644
--- a/spring-cloud/spring-cloud-zuul-eureka-integration/bin/eureka-client/pom.xml
+++ b/spring-cloud/spring-cloud-zuul-eureka-integration/bin/eureka-client/pom.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://maven.apache.org/POM/4.0.0"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>eureka-client</artifactId>
     <version>1.0.0-SNAPSHOT</version>
@@ -14,6 +14,18 @@
         <version>1.0.0-SNAPSHOT</version>
     </parent>
 
+    <dependencyManagement>
+        <dependencies>
+            <dependency>
+                <groupId>org.springframework.cloud</groupId>
+                <artifactId>spring-cloud-starter-parent</artifactId>
+                <version>${spring-cloud-dependencies.version}</version>
+                <type>pom</type>
+                <scope>import</scope>
+            </dependency>
+        </dependencies>
+    </dependencyManagement>
+
     <dependencies>
         <dependency>
             <groupId>org.springframework.cloud</groupId>
@@ -27,16 +39,4 @@
         </dependency>
     </dependencies>
 
-    <dependencyManagement>
-        <dependencies>
-            <dependency>
-                <groupId>org.springframework.cloud</groupId>
-                <artifactId>spring-cloud-starter-parent</artifactId>
-                <version>${spring-cloud-dependencies.version}</version>
-                <type>pom</type>
-                <scope>import</scope>
-            </dependency>
-        </dependencies>
-    </dependencyManagement>
-
 </project>
diff --git a/spring-cloud/spring-cloud-zuul-eureka-integration/bin/eureka-server/pom.xml b/spring-cloud/spring-cloud-zuul-eureka-integration/bin/eureka-server/pom.xml
index 97933210de..08854b02fd 100644
--- a/spring-cloud/spring-cloud-zuul-eureka-integration/bin/eureka-server/pom.xml
+++ b/spring-cloud/spring-cloud-zuul-eureka-integration/bin/eureka-server/pom.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://maven.apache.org/POM/4.0.0"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>eureka-server</artifactId>
     <version>1.0.0-SNAPSHOT</version>
@@ -14,6 +14,18 @@
         <version>1.0.0-SNAPSHOT</version>
     </parent>
 
+    <dependencyManagement>
+        <dependencies>
+            <dependency>
+                <groupId>org.springframework.cloud</groupId>
+                <artifactId>spring-cloud-starter-parent</artifactId>
+                <version>${spring-cloud-dependencies.version}</version>
+                <type>pom</type>
+                <scope>import</scope>
+            </dependency>
+        </dependencies>
+    </dependencyManagement>
+
     <dependencies>
         <dependency>
             <groupId>org.springframework.cloud</groupId>
@@ -27,16 +39,4 @@
         </dependency>
     </dependencies>
 
-    <dependencyManagement>
-        <dependencies>
-            <dependency>
-                <groupId>org.springframework.cloud</groupId>
-                <artifactId>spring-cloud-starter-parent</artifactId>
-                <version>${spring-cloud-dependencies.version}</version>
-                <type>pom</type>
-                <scope>import</scope>
-            </dependency>
-        </dependencies>
-    </dependencyManagement>
-
 </project>
diff --git a/spring-cloud/spring-cloud-zuul-eureka-integration/bin/pom.xml b/spring-cloud/spring-cloud-zuul-eureka-integration/bin/pom.xml
index fbae051277..c7b35ef934 100644
--- a/spring-cloud/spring-cloud-zuul-eureka-integration/bin/pom.xml
+++ b/spring-cloud/spring-cloud-zuul-eureka-integration/bin/pom.xml
@@ -1,13 +1,12 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://maven.apache.org/POM/4.0.0"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
-    <modelVersion>4.0.0</modelVersion>    
-    <groupId>com.baeldung.spring.cloud</groupId>
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
     <artifactId>spring-cloud-zuul-eureka-integration</artifactId>
     <version>1.0.0-SNAPSHOT</version>
     <name>Spring Cloud Zuul and Eureka Integration</name>
-    <description>Spring Cloud Zuul and Eureka Integration</description>
     <packaging>pom</packaging>
+    <description>Spring Cloud Zuul and Eureka Integration</description>
 
     <parent>
         <groupId>com.baeldung.spring.cloud</groupId>
@@ -28,4 +27,5 @@
         <spring-boot-maven-plugin.version>1.4.2.RELEASE</spring-boot-maven-plugin.version>
         <commons-config.version>1.10</commons-config.version>
     </properties>
+    
 </project>
diff --git a/spring-cloud/spring-cloud-zuul-eureka-integration/bin/zuul-server/pom.xml b/spring-cloud/spring-cloud-zuul-eureka-integration/bin/zuul-server/pom.xml
index 1c2cb85da5..2a899760dd 100644
--- a/spring-cloud/spring-cloud-zuul-eureka-integration/bin/zuul-server/pom.xml
+++ b/spring-cloud/spring-cloud-zuul-eureka-integration/bin/zuul-server/pom.xml
@@ -1,14 +1,27 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>zuul-server</artifactId>
-    	
+
     <parent>
         <groupId>com.baeldung.spring.cloud</groupId>
         <artifactId>spring-cloud-zuul-eureka-integration</artifactId>
         <version>1.0.0-SNAPSHOT</version>
     </parent>
-    	
+
+    <dependencyManagement>
+        <dependencies>
+            <dependency>
+                <groupId>org.springframework.cloud</groupId>
+                <artifactId>spring-cloud-starter-parent</artifactId>
+                <version>${spring-cloud-dependencies.version}</version>
+                <type>pom</type>
+                <scope>import</scope>
+            </dependency>
+        </dependencies>
+    </dependencyManagement>
+
     <dependencies>
         <dependency>
             <groupId>org.springframework.boot</groupId>
@@ -32,16 +45,5 @@
             <artifactId>spring-boot-starter-security</artifactId>
         </dependency>
     </dependencies>
-    	
-    <dependencyManagement>
-        <dependencies>
-            <dependency>
-                <groupId>org.springframework.cloud</groupId>
-                <artifactId>spring-cloud-starter-parent</artifactId>
-                <version>${spring-cloud-dependencies.version}</version>
-                <type>pom</type>
-                <scope>import</scope>
-            </dependency>
-        </dependencies>
-    </dependencyManagement>
+
 </project>
\ No newline at end of file
diff --git a/spring-cloud/spring-cloud-zuul-eureka-integration/eureka-client/pom.xml b/spring-cloud/spring-cloud-zuul-eureka-integration/eureka-client/pom.xml
index af7df71d17..9cf96df60e 100644
--- a/spring-cloud/spring-cloud-zuul-eureka-integration/eureka-client/pom.xml
+++ b/spring-cloud/spring-cloud-zuul-eureka-integration/eureka-client/pom.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://maven.apache.org/POM/4.0.0"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>eureka-client</artifactId>
     <version>1.0.0-SNAPSHOT</version>
@@ -14,26 +14,6 @@
         <version>1.0.0-SNAPSHOT</version>
     </parent>
 
-    <dependencies>
-        <dependency>
-            <groupId>org.springframework.cloud</groupId>
-            <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
-            <version>${spring-cloud-starter-eureka.version}</version>
-        </dependency>
-        <dependency>
-            <groupId>org.springframework.boot</groupId>
-            <artifactId>spring-boot-starter-web</artifactId>
-            <version>${spring-boot-starter-web.version}</version>
-        </dependency>
-        
-        <dependency>
-            <groupId>org.springframework.boot</groupId>
-            <artifactId>spring-boot-starter-test</artifactId>
-            <version>${spring-boot-starter-web.version}</version>
-            <scope>test</scope>
-        </dependency>
-    </dependencies>
-
     <dependencyManagement>
         <dependencies>
             <dependency>
@@ -46,4 +26,24 @@
         </dependencies>
     </dependencyManagement>
 
+    <dependencies>
+        <dependency>
+            <groupId>org.springframework.cloud</groupId>
+            <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
+            <version>${spring-cloud-starter-eureka.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-web</artifactId>
+            <version>${spring-boot-starter-web.version}</version>
+        </dependency>
+
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-test</artifactId>
+            <version>${spring-boot-starter-web.version}</version>
+            <scope>test</scope>
+        </dependency>
+    </dependencies>
+
 </project>
diff --git a/spring-cloud/spring-cloud-zuul-eureka-integration/eureka-server/pom.xml b/spring-cloud/spring-cloud-zuul-eureka-integration/eureka-server/pom.xml
index d1f618507f..cd25f5f294 100644
--- a/spring-cloud/spring-cloud-zuul-eureka-integration/eureka-server/pom.xml
+++ b/spring-cloud/spring-cloud-zuul-eureka-integration/eureka-server/pom.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://maven.apache.org/POM/4.0.0"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>eureka-server</artifactId>
     <version>1.0.0-SNAPSHOT</version>
@@ -14,26 +14,6 @@
         <version>1.0.0-SNAPSHOT</version>
     </parent>
 
-    <dependencies>
-        <dependency>
-            <groupId>org.springframework.cloud</groupId>
-            <artifactId>spring-cloud-starter-netflix-eureka-server</artifactId>
-            <version>${spring-cloud-starter-eureka.version}</version>
-        </dependency>
-        <dependency>
-            <groupId>commons-configuration</groupId>
-            <artifactId>commons-configuration</artifactId>
-            <version>${commons-config.version}</version>
-        </dependency>
-        
-        <dependency>
-            <groupId>org.springframework.boot</groupId>
-            <artifactId>spring-boot-starter-test</artifactId>
-            <version>${spring-boot-starter-web.version}</version>
-            <scope>test</scope>
-        </dependency>
-    </dependencies>
-
     <dependencyManagement>
         <dependencies>
             <dependency>
@@ -46,4 +26,24 @@
         </dependencies>
     </dependencyManagement>
 
+    <dependencies>
+        <dependency>
+            <groupId>org.springframework.cloud</groupId>
+            <artifactId>spring-cloud-starter-netflix-eureka-server</artifactId>
+            <version>${spring-cloud-starter-eureka.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>commons-configuration</groupId>
+            <artifactId>commons-configuration</artifactId>
+            <version>${commons-config.version}</version>
+        </dependency>
+
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-test</artifactId>
+            <version>${spring-boot-starter-web.version}</version>
+            <scope>test</scope>
+        </dependency>
+    </dependencies>
+
 </project>
diff --git a/spring-cloud/spring-cloud-zuul-eureka-integration/pom.xml b/spring-cloud/spring-cloud-zuul-eureka-integration/pom.xml
index 7fe0cf6ac3..996110f875 100644
--- a/spring-cloud/spring-cloud-zuul-eureka-integration/pom.xml
+++ b/spring-cloud/spring-cloud-zuul-eureka-integration/pom.xml
@@ -3,7 +3,6 @@
          xmlns="http://maven.apache.org/POM/4.0.0"
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung.spring.cloud</groupId>
     <artifactId>spring-cloud-zuul-eureka-integration</artifactId>
     <version>1.0.0-SNAPSHOT</version>
     <name>spring-cloud-zuul-eureka-integration</name>
diff --git a/spring-cloud/spring-cloud-zuul-eureka-integration/zuul-server/pom.xml b/spring-cloud/spring-cloud-zuul-eureka-integration/zuul-server/pom.xml
index 57a11f3385..3d238d5d5f 100644
--- a/spring-cloud/spring-cloud-zuul-eureka-integration/zuul-server/pom.xml
+++ b/spring-cloud/spring-cloud-zuul-eureka-integration/zuul-server/pom.xml
@@ -1,15 +1,28 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>zuul-server</artifactId>
-	<name>zuul-server</name>
-    
+    <name>zuul-server</name>
+
     <parent>
         <groupId>com.baeldung.spring.cloud</groupId>
         <artifactId>spring-cloud-zuul-eureka-integration</artifactId>
         <version>1.0.0-SNAPSHOT</version>
     </parent>
-    
+
+    <dependencyManagement>
+        <dependencies>
+            <dependency>
+                <groupId>org.springframework.cloud</groupId>
+                <artifactId>spring-cloud-starter-parent</artifactId>
+                <version>${spring-cloud-dependencies.version}</version>
+                <type>pom</type>
+                <scope>import</scope>
+            </dependency>
+        </dependencies>
+    </dependencyManagement>
+
     <dependencies>
         <dependency>
             <groupId>org.springframework.boot</groupId>
@@ -33,7 +46,7 @@
             <artifactId>rxjava</artifactId>
             <version>${rxjava.version}</version>
         </dependency>
-        
+
         <dependency>
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-test</artifactId>
@@ -41,17 +54,5 @@
             <scope>test</scope>
         </dependency>
     </dependencies>
-    
-    <dependencyManagement>
-        <dependencies>
-            <dependency>
-                <groupId>org.springframework.cloud</groupId>
-                <artifactId>spring-cloud-starter-parent</artifactId>
-                <version>${spring-cloud-dependencies.version}</version>
-                <type>pom</type>
-                <scope>import</scope>
-            </dependency>
-        </dependencies>
-    </dependencyManagement>
-    
+
 </project>
\ No newline at end of file
diff --git a/spring-cloud/spring-cloud-zuul-fallback/api-gateway/pom.xml b/spring-cloud/spring-cloud-zuul-fallback/api-gateway/pom.xml
index ee0f607d8a..136461ccb9 100644
--- a/spring-cloud/spring-cloud-zuul-fallback/api-gateway/pom.xml
+++ b/spring-cloud/spring-cloud-zuul-fallback/api-gateway/pom.xml
@@ -1,11 +1,12 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0"
-    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>api-gateway</artifactId>
     <name>api-gateway</name>
-    <description>API Gateway using Zuul</description>
     <packaging>jar</packaging>
+    <description>API Gateway using Zuul</description>
 
     <parent>
         <groupId>com.baeldung.spring.cloud</groupId>
@@ -13,6 +14,18 @@
         <version>1.0.0-SNAPSHOT</version>
     </parent>
 
+    <dependencyManagement>
+        <dependencies>
+            <dependency>
+                <groupId>org.springframework.cloud</groupId>
+                <artifactId>spring-cloud-starter-parent</artifactId>
+                <version>${spring-cloud-dependencies.version}</version>
+                <type>pom</type>
+                <scope>import</scope>
+            </dependency>
+        </dependencies>
+    </dependencyManagement>
+
     <dependencies>
         <dependency>
             <groupId>org.springframework.boot</groupId>
@@ -29,15 +42,4 @@
         </dependency>
     </dependencies>
 
-    <dependencyManagement>
-        <dependencies>
-            <dependency>
-                <groupId>org.springframework.cloud</groupId>
-                <artifactId>spring-cloud-starter-parent</artifactId>
-                <version>${spring-cloud-dependencies.version}</version>
-                <type>pom</type>
-                <scope>import</scope>
-            </dependency>
-        </dependencies>
-    </dependencyManagement>
 </project>
diff --git a/spring-cloud/spring-cloud-zuul-fallback/pom.xml b/spring-cloud/spring-cloud-zuul-fallback/pom.xml
index 5bdd1d49ca..cb762eb099 100644
--- a/spring-cloud/spring-cloud-zuul-fallback/pom.xml
+++ b/spring-cloud/spring-cloud-zuul-fallback/pom.xml
@@ -1,11 +1,11 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0"
-    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>spring-cloud-zuul-fallback</artifactId>
-    <packaging>pom</packaging>
     <name>spring-cloud-zuul-fallback</name>
+    <packaging>pom</packaging>
     <description>Spring Cloud Zuul Fallback</description>
 
     <parent>
@@ -25,4 +25,5 @@
         <spring-cloud-dependencies.version>Finchley.SR2</spring-cloud-dependencies.version>
         <maven-jar-plugin.version>3.1.1</maven-jar-plugin.version>
     </properties>
+    
 </project>
diff --git a/spring-cloud/spring-cloud-zuul-fallback/weather-service/pom.xml b/spring-cloud/spring-cloud-zuul-fallback/weather-service/pom.xml
index 611f1dcd4f..bafd4ffcd1 100644
--- a/spring-cloud/spring-cloud-zuul-fallback/weather-service/pom.xml
+++ b/spring-cloud/spring-cloud-zuul-fallback/weather-service/pom.xml
@@ -1,6 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0"
-    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>weather-service</artifactId>
     <name>Weather Service</name>
@@ -12,6 +13,18 @@
         <version>1.0.0-SNAPSHOT</version>
     </parent>
 
+    <dependencyManagement>
+        <dependencies>
+            <dependency>
+                <groupId>org.springframework.cloud</groupId>
+                <artifactId>spring-cloud-starter-parent</artifactId>
+                <version>${spring-cloud-dependencies.version}</version>
+                <type>pom</type>
+                <scope>import</scope>
+            </dependency>
+        </dependencies>
+    </dependencyManagement>
+    
     <dependencies>
         <dependency>
             <groupId>org.springframework.boot</groupId>
@@ -25,15 +38,4 @@
         </dependency>
     </dependencies>
 
-    <dependencyManagement>
-        <dependencies>
-            <dependency>
-                <groupId>org.springframework.cloud</groupId>
-                <artifactId>spring-cloud-starter-parent</artifactId>
-                <version>${spring-cloud-dependencies.version}</version>
-                <type>pom</type>
-                <scope>import</scope>
-            </dependency>
-        </dependencies>
-    </dependencyManagement>
 </project>
diff --git a/spring-cloud/spring-cloud-zuul/pom.xml b/spring-cloud/spring-cloud-zuul/pom.xml
index fe28dd1299..1593bc59e9 100644
--- a/spring-cloud/spring-cloud-zuul/pom.xml
+++ b/spring-cloud/spring-cloud-zuul/pom.xml
@@ -9,8 +9,8 @@
     <packaging>pom</packaging>
 
     <parent>
-        <artifactId>parent-boot-2</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-2</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../../parent-boot-2</relativePath>
     </parent>
@@ -21,6 +21,18 @@
         <module>spring-zuul-rate-limiting</module>
     </modules>
 
+    <dependencyManagement>
+        <dependencies>
+            <dependency>
+                <groupId>org.springframework.cloud</groupId>
+                <artifactId>spring-cloud-dependencies</artifactId>
+                <version>${spring-cloud.version}</version>
+                <type>pom</type>
+                <scope>import</scope>
+            </dependency>
+        </dependencies>
+    </dependencyManagement>
+
     <dependencies>
         <dependency>
             <groupId>org.springframework.boot</groupId>
@@ -41,18 +53,6 @@
         </dependency>
     </dependencies>
 
-    <dependencyManagement>
-        <dependencies>
-            <dependency>
-                <groupId>org.springframework.cloud</groupId>
-                <artifactId>spring-cloud-dependencies</artifactId>
-                <version>${spring-cloud.version}</version>
-                <type>pom</type>
-                <scope>import</scope>
-            </dependency>
-        </dependencies>
-    </dependencyManagement>
-
     <build>
         <plugins>
             <plugin>
diff --git a/spring-cloud/spring-cloud-zuul/spring-zuul-rate-limiting/pom.xml b/spring-cloud/spring-cloud-zuul/spring-zuul-rate-limiting/pom.xml
index af961537f9..34f0e6b7ae 100644
--- a/spring-cloud/spring-cloud-zuul/spring-zuul-rate-limiting/pom.xml
+++ b/spring-cloud/spring-cloud-zuul/spring-zuul-rate-limiting/pom.xml
@@ -13,18 +13,6 @@
         <version>0.0.1-SNAPSHOT</version>
     </parent>
 
-    <dependencies>
-        <dependency>
-            <groupId>com.marcosbarbero.cloud</groupId>
-            <artifactId>spring-cloud-zuul-ratelimit</artifactId>
-            <version>${rate.limit.version}</version>
-        </dependency>
-        <dependency>
-            <groupId>org.springframework.boot</groupId>
-            <artifactId>spring-boot-starter-data-jpa</artifactId>
-        </dependency>
-    </dependencies>
-
     <dependencyManagement>
         <dependencies>
             <dependency>
@@ -37,6 +25,18 @@
         </dependencies>
     </dependencyManagement>
 
+    <dependencies>
+        <dependency>
+            <groupId>com.marcosbarbero.cloud</groupId>
+            <artifactId>spring-cloud-zuul-ratelimit</artifactId>
+            <version>${rate.limit.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-data-jpa</artifactId>
+        </dependency>
+    </dependencies>
+
     <build>
         <finalName>spring-zuul-rate-limiting</finalName>
         <plugins>
diff --git a/spring-cloud/spring-cloud-zuul/spring-zuul-ui/pom.xml b/spring-cloud/spring-cloud-zuul/spring-zuul-ui/pom.xml
index c5854b5ba5..09c94663b1 100644
--- a/spring-cloud/spring-cloud-zuul/spring-zuul-ui/pom.xml
+++ b/spring-cloud/spring-cloud-zuul/spring-zuul-ui/pom.xml
@@ -1,3 +1,4 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
@@ -47,4 +48,5 @@
             </resource>
         </resources>
     </build>
+    
 </project>
\ No newline at end of file
diff --git a/spring-core-2/pom.xml b/spring-core-2/pom.xml
index 21548d6984..f89a093f30 100644
--- a/spring-core-2/pom.xml
+++ b/spring-core-2/pom.xml
@@ -1,3 +1,4 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
@@ -7,12 +8,34 @@
     <packaging>war</packaging>
 
     <parent>
-        <artifactId>parent-boot-2</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-2</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../parent-boot-2</relativePath>
     </parent>
 
+    <dependencyManagement>
+        <dependencies>
+            <dependency>
+                <groupId>org.springframework</groupId>
+                <artifactId>spring-framework-bom</artifactId>
+                <version>${org.springframework.version}</version>
+                <type>pom</type>
+                <scope>import</scope>
+            </dependency>
+            <dependency>
+                <groupId>org.springframework</groupId>
+                <artifactId>spring-core</artifactId>
+                <version>${org.springframework.version}</version>
+            </dependency>
+            <dependency>
+                <groupId>org.springframework.boot</groupId>
+                <artifactId>spring-boot-starter-thymeleaf</artifactId>
+                <version>${org.springframework.version}</version>
+            </dependency>
+        </dependencies>
+    </dependencyManagement>
+
     <dependencies>
         <dependency>
             <groupId>com.fasterxml.jackson.core</groupId>
@@ -139,28 +162,6 @@
         </dependency>
     </dependencies>
 
-    <dependencyManagement>
-        <dependencies>
-            <dependency>
-                <groupId>org.springframework</groupId>
-                <artifactId>spring-framework-bom</artifactId>
-                <version>${org.springframework.version}</version>
-                <type>pom</type>
-                <scope>import</scope>
-            </dependency>
-            <dependency>
-                <groupId>org.springframework</groupId>
-                <artifactId>spring-core</artifactId>
-                <version>${org.springframework.version}</version>
-            </dependency>
-            <dependency>
-                <groupId>org.springframework.boot</groupId>
-                <artifactId>spring-boot-starter-thymeleaf</artifactId>
-                <version>${org.springframework.version}</version>
-            </dependency>
-        </dependencies>
-    </dependencyManagement>
-
     <build>
         <finalName>spring-core-2</finalName>
         <resources>
@@ -180,6 +181,7 @@
             </plugin>
         </plugins>
     </build>
+
     <profiles>
         <profile>
             <id>dev</id>
diff --git a/spring-core/pom.xml b/spring-core/pom.xml
index 7e5a9b3feb..eb25bcd517 100644
--- a/spring-core/pom.xml
+++ b/spring-core/pom.xml
@@ -1,8 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://maven.apache.org/POM/4.0.0"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
-
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung</groupId>
     <artifactId>spring-core</artifactId>
     <version>0.0.1-SNAPSHOT</version>
     <name>spring-core</name>
@@ -57,7 +56,7 @@
             <version>${mockito.spring.boot.version}</version>
             <scope>test</scope>
         </dependency>
-         <dependency>
+        <dependency>
             <groupId>org.assertj</groupId>
             <artifactId>assertj-core</artifactId>
             <version>${assertj.version}</version>
diff --git a/spring-cucumber/pom.xml b/spring-cucumber/pom.xml
index 85980fbc60..245d10e77b 100644
--- a/spring-cucumber/pom.xml
+++ b/spring-cucumber/pom.xml
@@ -1,17 +1,16 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung</groupId>
     <artifactId>spring-cucumber</artifactId>
     <version>0.0.1-SNAPSHOT</version>
     <name>spring-cucumber</name>
-    <description>Demo project for Spring Boot</description>
     <packaging>jar</packaging>
+    <description>Demo project for Spring Boot</description>
 
     <parent>
-        <artifactId>parent-boot-2</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-2</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../parent-boot-2</relativePath>
     </parent>
diff --git a/spring-data-rest-querydsl/pom.xml b/spring-data-rest-querydsl/pom.xml
index 2c75990c65..9f53f6b55f 100644
--- a/spring-data-rest-querydsl/pom.xml
+++ b/spring-data-rest-querydsl/pom.xml
@@ -1,16 +1,15 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xmlns="http://maven.apache.org/POM/4.0.0"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xmlns="http://maven.apache.org/POM/4.0.0"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung</groupId>
     <artifactId>spring-data-rest-querydsl</artifactId>
     <version>1.0</version>
     <name>spring-data-rest-querydsl</name>
 
     <parent>
-        <artifactId>parent-boot-1</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-1</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../parent-boot-1</relativePath>
     </parent>
diff --git a/spring-data-rest/pom.xml b/spring-data-rest/pom.xml
index 21f0f38368..05f2ccbbae 100644
--- a/spring-data-rest/pom.xml
+++ b/spring-data-rest/pom.xml
@@ -9,8 +9,8 @@
     <description>Intro to Spring Data REST</description>
 
     <parent>
-        <artifactId>parent-boot-2</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-2</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../parent-boot-2</relativePath>
     </parent>
diff --git a/spring-di/pom.xml b/spring-di/pom.xml
index c865815753..e819d096e5 100644
--- a/spring-di/pom.xml
+++ b/spring-di/pom.xml
@@ -5,8 +5,8 @@
     <modelVersion>4.0.0</modelVersion>
     <artifactId>spring-di</artifactId>
     <version>1.0-SNAPSHOT</version>
-    <packaging>war</packaging>
     <name>spring-di</name>
+    <packaging>war</packaging>
 
     <parent>
         <groupId>com.baeldung</groupId>
@@ -15,6 +15,23 @@
         <relativePath>../parent-spring-5</relativePath>
     </parent>
 
+    <dependencyManagement>
+        <dependencies>
+            <dependency>
+                <groupId>org.springframework</groupId>
+                <artifactId>spring-framework-bom</artifactId>
+                <version>${org.springframework.version}</version>
+                <type>pom</type>
+                <scope>import</scope>
+            </dependency>
+            <dependency>
+                <groupId>org.springframework</groupId>
+                <artifactId>spring-core</artifactId>
+                <version>${org.springframework.version}</version>
+            </dependency>
+        </dependencies>
+    </dependencyManagement>
+
     <dependencies>
         <dependency>
             <groupId>org.springframework</groupId>
@@ -69,10 +86,10 @@
             <version>${commons.io.version}</version>
         </dependency>
         <!-- Spring -->
-<!--        <dependency>-->
-<!--            <groupId>org.springframework</groupId>-->
-<!--            <artifactId>spring-context</artifactId>-->
-<!--        </dependency>-->
+        <!--        <dependency>-->
+        <!--            <groupId>org.springframework</groupId>-->
+        <!--            <artifactId>spring-context</artifactId>-->
+        <!--        </dependency>-->
 
         <dependency>
             <groupId>javax.annotation</groupId>
@@ -80,32 +97,15 @@
             <version>${annotation-api.version}</version>
         </dependency>
 
-<!--        &lt;!&ndash; test scoped &ndash;&gt;-->
-<!--        <dependency>-->
-<!--            <groupId>org.springframework</groupId>-->
-<!--            <artifactId>spring-test</artifactId>-->
-<!--            <scope>test</scope>-->
-<!--        </dependency>-->
+        <!--        &lt;!&ndash; test scoped &ndash;&gt;-->
+        <!--        <dependency>-->
+        <!--            <groupId>org.springframework</groupId>-->
+        <!--            <artifactId>spring-test</artifactId>-->
+        <!--            <scope>test</scope>-->
+        <!--        </dependency>-->
 
     </dependencies>
 
-    <dependencyManagement>
-        <dependencies>
-            <dependency>
-                <groupId>org.springframework</groupId>
-                <artifactId>spring-framework-bom</artifactId>
-                <version>${org.springframework.version}</version>
-                <type>pom</type>
-                <scope>import</scope>
-            </dependency>
-            <dependency>
-                <groupId>org.springframework</groupId>
-                <artifactId>spring-core</artifactId>
-                <version>${org.springframework.version}</version>
-            </dependency>
-        </dependencies>
-    </dependencyManagement>
-
     <build>
         <finalName>spring-di</finalName>
         <resources>
diff --git a/spring-dispatcher-servlet/pom.xml b/spring-dispatcher-servlet/pom.xml
index 6f816986be..9b9f7fb4c6 100644
--- a/spring-dispatcher-servlet/pom.xml
+++ b/spring-dispatcher-servlet/pom.xml
@@ -1,8 +1,7 @@
 <?xml version="1.0"?>
 <project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd" xmlns="http://maven.apache.org/POM/4.0.0"
-    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung</groupId>
     <artifactId>spring-dispatcher-servlet</artifactId>
     <version>1.0.0</version>
     <name>spring-dispatcher-servlet</name>
@@ -62,11 +61,11 @@
             <version>${commons-fileupload.version}</version>
         </dependency>
         <dependency>
-			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-starter-test</artifactId>
-			<version>1.5.10.RELEASE</version>
-			<scope>test</scope>
-		</dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-test</artifactId>
+            <version>1.5.10.RELEASE</version>
+            <scope>test</scope>
+        </dependency>
     </dependencies>
 
     <build>
diff --git a/spring-drools/pom.xml b/spring-drools/pom.xml
index 5bb2d6a8e9..5adef4b2a9 100644
--- a/spring-drools/pom.xml
+++ b/spring-drools/pom.xml
@@ -1,12 +1,11 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung</groupId>
     <artifactId>spring-drools</artifactId>
     <version>1.0.0-SNAPSHOT</version>
-	<name>spring-drools</name>
-	
+    <name>spring-drools</name>
+
     <parent>
         <groupId>com.baeldung</groupId>
         <artifactId>parent-modules</artifactId>
diff --git a/spring-ehcache/pom.xml b/spring-ehcache/pom.xml
index b8378617c5..bf78e1392c 100644
--- a/spring-ehcache/pom.xml
+++ b/spring-ehcache/pom.xml
@@ -1,5 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>spring-ehcache</artifactId>
     <version>0.1-SNAPSHOT</version>
@@ -7,14 +8,13 @@
     <packaging>jar</packaging>
 
     <parent>
-        <artifactId>parent-boot-2</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-2</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../parent-boot-2</relativePath>
     </parent>
 
     <dependencies>
-
         <dependency>
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-web</artifactId>
diff --git a/spring-ejb/ejb-beans/pom.xml b/spring-ejb/ejb-beans/pom.xml
index 168809ee6d..b8978a0cc3 100644
--- a/spring-ejb/ejb-beans/pom.xml
+++ b/spring-ejb/ejb-beans/pom.xml
@@ -1,5 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <groupId>com.baeldung.singletonsession</groupId>
     <artifactId>ejb-beans</artifactId>
@@ -42,6 +43,7 @@
             <scope>test</scope>
         </dependency>
     </dependencies>
+
     <profiles>
         <profile>
             <id>arquillian-glassfish-embedded</id>
diff --git a/spring-ejb/pom.xml b/spring-ejb/pom.xml
index 4422223c6f..1b3a52184e 100755
--- a/spring-ejb/pom.xml
+++ b/spring-ejb/pom.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <groupId>com.baeldung.spring.ejb</groupId>
     <artifactId>spring-ejb</artifactId>
@@ -74,10 +74,10 @@
     <modules>
         <module>spring-ejb-remote</module>
         <module>ejb-beans</module>
-		<module>spring-ejb-client</module>
-		<module>wildfly</module>
+        <module>spring-ejb-client</module>
+        <module>wildfly</module>
     </modules>
-    
+
     <properties>
         <spring-ejb-remote.version>1.0.0-SNAPSHOT</spring-ejb-remote.version>
         <javaee.version>8.0</javaee.version>
diff --git a/spring-ejb/spring-ejb-client/pom.xml b/spring-ejb/spring-ejb-client/pom.xml
index 2dd3120532..6c335e8982 100644
--- a/spring-ejb/spring-ejb-client/pom.xml
+++ b/spring-ejb/spring-ejb-client/pom.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>spring-ejb-client</artifactId>
     <name>spring-ejb-client</name>
@@ -61,7 +61,7 @@
             <plugin>
                 <groupId>org.springframework.boot</groupId>
                 <artifactId>spring-boot-maven-plugin</artifactId>
-				<version>${spring-boot.version}</version>
+                <version>${spring-boot.version}</version>
             </plugin>
         </plugins>
     </build>
diff --git a/spring-ejb/spring-ejb-remote/pom.xml b/spring-ejb/spring-ejb-remote/pom.xml
index 633e0387b0..28d5398b97 100644
--- a/spring-ejb/spring-ejb-remote/pom.xml
+++ b/spring-ejb/spring-ejb-remote/pom.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0"
-    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>spring-ejb-remote</artifactId>
     <name>spring-ejb-remote</name>
diff --git a/spring-ejb/wildfly/pom.xml b/spring-ejb/wildfly/pom.xml
index e2c3ffb50c..fdf2517139 100644
--- a/spring-ejb/wildfly/pom.xml
+++ b/spring-ejb/wildfly/pom.xml
@@ -1,10 +1,11 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <groupId>com.baeldung.wildfly</groupId>
     <artifactId>wildfly</artifactId>
     <version>0.0.1-SNAPSHOT</version>
-	<name>wildfly</name>
+    <name>wildfly</name>
     <packaging>pom</packaging>
 
     <parent>
diff --git a/spring-ejb/wildfly/widlfly-web/pom.xml b/spring-ejb/wildfly/widlfly-web/pom.xml
index 5eefada2fc..79d0dca470 100644
--- a/spring-ejb/wildfly/widlfly-web/pom.xml
+++ b/spring-ejb/wildfly/widlfly-web/pom.xml
@@ -1,3 +1,4 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
     xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
@@ -38,4 +39,5 @@
             <version>${wildlfy.version}</version>
         </dependency>
     </dependencies>
+
 </project>
\ No newline at end of file
diff --git a/spring-ejb/wildfly/wildfly-ear/pom.xml b/spring-ejb/wildfly/wildfly-ear/pom.xml
index 62d15a53dc..9393820b12 100644
--- a/spring-ejb/wildfly/wildfly-ear/pom.xml
+++ b/spring-ejb/wildfly/wildfly-ear/pom.xml
@@ -1,10 +1,11 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>wildfly-ear</artifactId>
-	<name>wildfly-ear</name>
+    <name>wildfly-ear</name>
     <packaging>ear</packaging>
-	
+
     <parent>
         <groupId>com.baeldung.wildfly</groupId>
         <artifactId>wildfly</artifactId>
@@ -61,9 +62,10 @@
             </plugin>
         </plugins>
     </build>
-    
+
     <properties>
         <maven-ear-plugin.version>2.10.1</maven-ear-plugin.version>
         <wildfly-maven-plugin.version>1.2.0.Final</wildfly-maven-plugin.version>
     </properties>
+
 </project>
\ No newline at end of file
diff --git a/spring-ejb/wildfly/wildfly-ejb-interfaces/pom.xml b/spring-ejb/wildfly/wildfly-ejb-interfaces/pom.xml
index 41c7012ea9..21fc26106a 100644
--- a/spring-ejb/wildfly/wildfly-ejb-interfaces/pom.xml
+++ b/spring-ejb/wildfly/wildfly-ejb-interfaces/pom.xml
@@ -1,9 +1,10 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>wildfly-ejb-interfaces</artifactId>
-	<name>wildfly-ejb-interfaces</name>
-	
+    <name>wildfly-ejb-interfaces</name>
+
     <parent>
         <groupId>com.baeldung.wildfly</groupId>
         <artifactId>wildfly</artifactId>
diff --git a/spring-ejb/wildfly/wildfly-ejb/pom.xml b/spring-ejb/wildfly/wildfly-ejb/pom.xml
index f03bfb341c..c35e340ac9 100644
--- a/spring-ejb/wildfly/wildfly-ejb/pom.xml
+++ b/spring-ejb/wildfly/wildfly-ejb/pom.xml
@@ -1,10 +1,11 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>wildfly-ejb</artifactId>
-	<name>wildfly-ejb</name>
+    <name>wildfly-ejb</name>
     <packaging>ejb</packaging>
-	
+
     <parent>
         <groupId>com.baeldung.wildfly</groupId>
         <artifactId>wildfly</artifactId>
@@ -48,8 +49,9 @@
             </plugin>
         </plugins>
     </build>
-    
+
     <properties>
         <ejb.version>3.2</ejb.version>
     </properties>
+
 </project>
\ No newline at end of file
diff --git a/spring-ejb/wildfly/wildfly-jpa/pom.xml b/spring-ejb/wildfly/wildfly-jpa/pom.xml
index 3005ab714c..1bc618a296 100644
--- a/spring-ejb/wildfly/wildfly-jpa/pom.xml
+++ b/spring-ejb/wildfly/wildfly-jpa/pom.xml
@@ -1,9 +1,10 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>wildfly-jpa</artifactId>
-	<name>wildfly-jpa</name>
-	
+    <name>wildfly-jpa</name>
+
     <parent>
         <groupId>com.baeldung.wildfly</groupId>
         <artifactId>wildfly</artifactId>
diff --git a/spring-ejb/wildfly/wildfly-mdb/pom.xml b/spring-ejb/wildfly/wildfly-mdb/pom.xml
index a2ffca2fc5..109cff861b 100644
--- a/spring-ejb/wildfly/wildfly-mdb/pom.xml
+++ b/spring-ejb/wildfly/wildfly-mdb/pom.xml
@@ -1,9 +1,10 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>wildfly-mdb</artifactId>
-	<name>wildfly-mdb</name>
-	
+    <name>wildfly-mdb</name>
+
     <parent>
         <groupId>com.baeldung.wildfly</groupId>
         <artifactId>wildfly</artifactId>
@@ -19,4 +20,5 @@
             <scope>provided</scope>
         </dependency>
     </dependencies>
+
 </project>
\ No newline at end of file
diff --git a/spring-exceptions/pom.xml b/spring-exceptions/pom.xml
index 45c80f2c9f..29ed7d5caa 100644
--- a/spring-exceptions/pom.xml
+++ b/spring-exceptions/pom.xml
@@ -1,7 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung</groupId>
     <artifactId>spring-exceptions</artifactId>
     <version>0.1-SNAPSHOT</version>
     <name>spring-exceptions</name>
diff --git a/spring-freemarker/pom.xml b/spring-freemarker/pom.xml
index be34f84495..bdf7e97bce 100644
--- a/spring-freemarker/pom.xml
+++ b/spring-freemarker/pom.xml
@@ -1,5 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <groupId>com.baeldung.freemarker</groupId>
     <artifactId>spring-freemarker</artifactId>
@@ -46,12 +47,11 @@
         </dependency>
         <!-- Test -->
         <dependency>
-			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-starter-test</artifactId>
-			<version>${spring-boot.version}</version>
-			<scope>test</scope>
-		</dependency>
-
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-test</artifactId>
+            <version>${spring-boot.version}</version>
+            <scope>test</scope>
+        </dependency>
     </dependencies>
 
     <properties>
diff --git a/spring-groovy/pom.xml b/spring-groovy/pom.xml
index c26de0b6dd..ef5613adf6 100644
--- a/spring-groovy/pom.xml
+++ b/spring-groovy/pom.xml
@@ -1,5 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <groupId>com.baeldug</groupId>
     <artifactId>spring-groovy</artifactId>
@@ -53,7 +54,6 @@
                     </dependency>
                 </dependencies>
             </plugin>
-
         </plugins>
     </build>
 
diff --git a/spring-integration/pom.xml b/spring-integration/pom.xml
index f06cb91ef6..ebdde5a1ee 100644
--- a/spring-integration/pom.xml
+++ b/spring-integration/pom.xml
@@ -1,5 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <groupId>com.baeldung.samples.spring.integration</groupId>
     <artifactId>spring-integration</artifactId>
diff --git a/spring-jenkins-pipeline/pom.xml b/spring-jenkins-pipeline/pom.xml
index 54b4cc478c..aa6008162c 100644
--- a/spring-jenkins-pipeline/pom.xml
+++ b/spring-jenkins-pipeline/pom.xml
@@ -1,16 +1,16 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>spring-jenkins-pipeline</artifactId>
     <version>0.0.1-SNAPSHOT</version>
     <name>spring-jenkins-pipeline</name>
-    <description>Intro to Jenkins 2 and the power of pipelines</description>
     <packaging>jar</packaging>
+    <description>Intro to Jenkins 2 and the power of pipelines</description>
 
     <parent>
-        <artifactId>parent-boot-1</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-1</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../parent-boot-1</relativePath>
     </parent>
diff --git a/spring-jersey/pom.xml b/spring-jersey/pom.xml
index cf80ac4069..3c84e9c11e 100644
--- a/spring-jersey/pom.xml
+++ b/spring-jersey/pom.xml
@@ -1,13 +1,12 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung</groupId>
     <artifactId>spring-jersey</artifactId>
     <version>0.1-SNAPSHOT</version>
-	<name>spring-jersey</name>
+    <name>spring-jersey</name>
     <packaging>war</packaging>
-	
+
     <parent>
         <groupId>com.baeldung</groupId>
         <artifactId>parent-modules</artifactId>
@@ -119,14 +118,14 @@
             <version>${assertj-core.version}</version>
             <scope>test</scope>
         </dependency>
-        
+
         <!-- Test -->
         <dependency>
-			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-starter-test</artifactId>
-			<version>${spring-boot.version}</version>
-			<scope>test</scope>
-		</dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-test</artifactId>
+            <version>${spring-boot.version}</version>
+            <scope>test</scope>
+        </dependency>
 
     </dependencies>
 
diff --git a/spring-jinq/pom.xml b/spring-jinq/pom.xml
index 1661614fa0..991401c4a1 100644
--- a/spring-jinq/pom.xml
+++ b/spring-jinq/pom.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8" standalone="no"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>spring-jinq</artifactId>
     <version>0.1-SNAPSHOT</version>
diff --git a/spring-jms/pom.xml b/spring-jms/pom.xml
index ea4af32216..a0d2625477 100644
--- a/spring-jms/pom.xml
+++ b/spring-jms/pom.xml
@@ -1,7 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
     xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung</groupId>
     <artifactId>spring-jms</artifactId>
     <version>0.0.1-SNAPSHOT</version>
     <name>spring-jms</name>
diff --git a/spring-jooq/pom.xml b/spring-jooq/pom.xml
index 8a1fa877da..620172f2a1 100644
--- a/spring-jooq/pom.xml
+++ b/spring-jooq/pom.xml
@@ -1,16 +1,30 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>spring-jooq</artifactId>
-	<name>spring-jooq</name>
-	
+    <name>spring-jooq</name>
+
     <parent>
-        <artifactId>parent-boot-2</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-2</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../parent-boot-2</relativePath>
     </parent>
 
+    <dependencyManagement>
+        <dependencies>
+            <dependency>
+                <!-- Import dependency management from Spring Boot -->
+                <groupId>org.springframework.boot</groupId>
+                <artifactId>spring-boot-dependencies</artifactId>
+                <version>${spring-boot.version}</version>
+                <type>pom</type>
+                <scope>import</scope>
+            </dependency>
+        </dependencies>
+    </dependencyManagement>
+
     <dependencies>
         <!-- jOOQ -->
         <dependency>
@@ -129,7 +143,7 @@
                                     <packageName>com.baeldung.jooq.introduction.db</packageName>
                                     <directory>src/main/java</directory>
                                 </target>
-                                 <database>
+                                <database>
                                     <inputCatalog></inputCatalog>
                                 </database>
                             </generator>
@@ -174,19 +188,6 @@
         </pluginManagement>
     </build>
 
-    <dependencyManagement>
-        <dependencies>
-            <dependency>
-                <!-- Import dependency management from Spring Boot -->
-                <groupId>org.springframework.boot</groupId>
-                <artifactId>spring-boot-dependencies</artifactId>
-                <version>${spring-boot.version}</version>
-                <type>pom</type>
-                <scope>import</scope>
-            </dependency>
-        </dependencies>
-    </dependencyManagement>
-
     <properties>
         <org.jooq.version>3.11.7</org.jooq.version>
         <lifecycle-mapping.version>1.0.0</lifecycle-mapping.version>
diff --git a/spring-kafka/pom.xml b/spring-kafka/pom.xml
index 3d08aaa928..d60a2ee506 100644
--- a/spring-kafka/pom.xml
+++ b/spring-kafka/pom.xml
@@ -1,15 +1,15 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung</groupId>
     <artifactId>spring-kafka</artifactId>
     <version>0.0.1-SNAPSHOT</version>
     <name>spring-kafka</name>
     <description>Intro to Kafka with Spring</description>
 
     <parent>
-        <artifactId>parent-boot-2</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-2</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../parent-boot-2</relativePath>
     </parent>
diff --git a/spring-katharsis/pom.xml b/spring-katharsis/pom.xml
index 18bf198948..3aeaa973af 100644
--- a/spring-katharsis/pom.xml
+++ b/spring-katharsis/pom.xml
@@ -1,15 +1,16 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <groupId>org.springframework.samples</groupId>
     <artifactId>spring-katharsis</artifactId>
     <version>0.0.1-SNAPSHOT</version>
-	<name>spring-katharsis</name>
+    <name>spring-katharsis</name>
     <packaging>war</packaging>
-	
+
     <parent>
-        <artifactId>parent-boot-1</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-1</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../parent-boot-1</relativePath>
     </parent>
diff --git a/spring-ldap/pom.xml b/spring-ldap/pom.xml
index 7399a84c2b..a9882ccb52 100644
--- a/spring-ldap/pom.xml
+++ b/spring-ldap/pom.xml
@@ -1,11 +1,11 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>spring-ldap</artifactId>
     <version>0.1-SNAPSHOT</version>
+    <name>spring-ldap</name>
     <packaging>jar</packaging>
-	<name>spring-ldap</name>
 
     <parent>
         <groupId>com.baeldung</groupId>
@@ -103,7 +103,6 @@
         <finalName>spring-ldap</finalName>
     </build>
 
-
     <profiles>
         <profile>
             <id>live</id>
diff --git a/spring-mobile/pom.xml b/spring-mobile/pom.xml
index 71d0d05933..ff90ac6ecb 100644
--- a/spring-mobile/pom.xml
+++ b/spring-mobile/pom.xml
@@ -1,8 +1,7 @@
 <?xml version="1.0"?>
 <project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd" xmlns="http://maven.apache.org/POM/4.0.0"
-    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung</groupId>
     <artifactId>spring-mobile</artifactId>
     <version>1.0-SNAPSHOT</version>
     <name>spring-mobile</name>
@@ -10,8 +9,8 @@
     <url>http://maven.apache.org</url>
 
     <parent>
-        <artifactId>parent-boot-1</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-1</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../parent-boot-1</relativePath>
     </parent>
diff --git a/spring-mockito/pom.xml b/spring-mockito/pom.xml
index 766234c41b..f3e0b04808 100644
--- a/spring-mockito/pom.xml
+++ b/spring-mockito/pom.xml
@@ -1,17 +1,16 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung</groupId>
     <artifactId>spring-mockito</artifactId>
     <version>0.0.1-SNAPSHOT</version>
     <name>spring-mockito</name>
-    <description>Injecting Mockito Mocks into Spring Beans</description>
     <packaging>jar</packaging>
+    <description>Injecting Mockito Mocks into Spring Beans</description>
 
     <parent>
-        <artifactId>parent-boot-2</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-2</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../parent-boot-2</relativePath>
     </parent>
diff --git a/spring-mvc-basics-2/pom.xml b/spring-mvc-basics-2/pom.xml
index 706459a268..8e36eb38d8 100644
--- a/spring-mvc-basics-2/pom.xml
+++ b/spring-mvc-basics-2/pom.xml
@@ -8,8 +8,8 @@
     <packaging>war</packaging>
 
     <parent>
-        <artifactId>parent-boot-2</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-2</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../parent-boot-2</relativePath>
     </parent>
diff --git a/spring-mvc-basics/pom.xml b/spring-mvc-basics/pom.xml
index 8c52c60b65..ab6d200e67 100644
--- a/spring-mvc-basics/pom.xml
+++ b/spring-mvc-basics/pom.xml
@@ -1,17 +1,16 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0"
-    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung</groupId>
     <artifactId>spring-mvc-basics</artifactId>
     <version>0.1-SNAPSHOT</version>
     <name>spring-mvc-basics</name>
     <packaging>jar</packaging>
 
     <parent>
-        <artifactId>parent-boot-2</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-2</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../parent-boot-2</relativePath>
     </parent>
@@ -50,5 +49,6 @@
             </plugin>
         </plugins>
     </build>
+
 </project>
 
diff --git a/spring-mvc-forms-jsp/pom.xml b/spring-mvc-forms-jsp/pom.xml
index 5ce2d19414..2bab93908f 100644
--- a/spring-mvc-forms-jsp/pom.xml
+++ b/spring-mvc-forms-jsp/pom.xml
@@ -1,9 +1,7 @@
 <?xml version="1.0"?>
 <project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd" xmlns="http://maven.apache.org/POM/4.0.0"
-    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
-
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung</groupId>
     <version>0.1-SNAPSHOT</version>
     <artifactId>spring-mvc-forms-jsp</artifactId>
     <name>spring-mvc-forms-jsp</name>
@@ -64,11 +62,11 @@
             <version>${jackson.version}</version>
         </dependency>
         <dependency>
-			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-starter-test</artifactId>
-			<version>1.5.10.RELEASE</version>
-			<scope>test</scope>
-		</dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-test</artifactId>
+            <version>1.5.10.RELEASE</version>
+            <scope>test</scope>
+        </dependency>
     </dependencies>
 
     <profiles>
diff --git a/spring-mvc-forms-thymeleaf/pom.xml b/spring-mvc-forms-thymeleaf/pom.xml
index 99bf465b44..2aed7f70ad 100644
--- a/spring-mvc-forms-thymeleaf/pom.xml
+++ b/spring-mvc-forms-thymeleaf/pom.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>spring-mvc-forms-thymeleaf</artifactId>
     <name>spring-mvc-forms-thymeleaf</name>
@@ -8,8 +8,8 @@
     <description>spring forms examples using thymeleaf</description>
 
     <parent>
-        <artifactId>parent-boot-2</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-2</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../parent-boot-2</relativePath>
     </parent>
@@ -41,4 +41,5 @@
         <thymeleaf.version>3.0.9.RELEASE</thymeleaf.version>
         <start-class>com.baeldung.sessionattrs.SessionAttrsApplication</start-class>
     </properties>
+
 </project>
diff --git a/spring-mvc-java/pom.xml b/spring-mvc-java/pom.xml
index ea0acdcb00..7d0afd85ec 100644
--- a/spring-mvc-java/pom.xml
+++ b/spring-mvc-java/pom.xml
@@ -1,15 +1,15 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung</groupId>
     <artifactId>spring-mvc-java</artifactId>
     <version>0.1-SNAPSHOT</version>
     <name>spring-mvc-java</name>
     <packaging>war</packaging>
 
     <parent>
-        <artifactId>parent-boot-2</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-2</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../parent-boot-2</relativePath>
     </parent>
@@ -46,7 +46,7 @@
         <dependency>
             <groupId>com.fasterxml.jackson.core</groupId>
             <artifactId>jackson-databind</artifactId>
-             <version>${jackson.version}</version>
+            <version>${jackson.version}</version>
         </dependency>
 
         <!-- AOP -->
@@ -188,7 +188,6 @@
     </build>
 
     <profiles>
-
         <profile>
             <id>live</id>
             <build>
@@ -285,7 +284,6 @@
 
         <javax.el.version>3.0.1-b09</javax.el.version>
         <start-class>com.baeldung.SpringMVCApplication</start-class>
-		
     </properties>
 
 </project>
diff --git a/spring-mvc-kotlin/pom.xml b/spring-mvc-kotlin/pom.xml
index fb1f242644..30d2c32ecf 100644
--- a/spring-mvc-kotlin/pom.xml
+++ b/spring-mvc-kotlin/pom.xml
@@ -1,82 +1,82 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://maven.apache.org/POM/4.0.0"
-	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
-	<modelVersion>4.0.0</modelVersion>
-	<artifactId>spring-mvc-kotlin</artifactId>
-	<name>spring-mvc-kotlin</name>
-	<packaging>war</packaging>
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <artifactId>spring-mvc-kotlin</artifactId>
+    <name>spring-mvc-kotlin</name>
+    <packaging>war</packaging>
 
-	<parent>
-		<artifactId>parent-kotlin</artifactId>
-		<groupId>com.baeldung</groupId>
-		<version>1.0.0-SNAPSHOT</version>
-		<relativePath>../parent-kotlin</relativePath>
-	</parent>
+    <parent>
+        <groupId>com.baeldung</groupId>
+        <artifactId>parent-kotlin</artifactId>
+        <version>1.0.0-SNAPSHOT</version>
+        <relativePath>../parent-kotlin</relativePath>
+    </parent>
 
-	<dependencies>
-		<dependency>
-			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-starter-web</artifactId>
-		</dependency>
-		<dependency>
-			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-starter-json</artifactId>
-		</dependency>
-		<dependency>
-			<groupId>org.thymeleaf</groupId>
-			<artifactId>thymeleaf</artifactId>
-		</dependency>
-		<dependency>
-			<groupId>org.thymeleaf</groupId>
-			<artifactId>thymeleaf-spring4</artifactId>
-			<version>${thymeleaf.version}</version>
-		</dependency>
-		<dependency>
-			<groupId>org.hibernate</groupId>
-			<artifactId>hibernate-core</artifactId>
-		</dependency>
-		<dependency>
-			<groupId>org.hibernate</groupId>
-			<artifactId>hibernate-testing</artifactId>
-			<scope>test</scope>
-		</dependency>
-		<dependency>
-			<groupId>com.h2database</groupId>
-			<artifactId>h2</artifactId>
-			<scope>test</scope>
-		</dependency>
-		<dependency>
-			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-starter-test</artifactId>
-			<scope>test</scope>
-		</dependency>
-	</dependencies>
+    <dependencies>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-web</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-json</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.thymeleaf</groupId>
+            <artifactId>thymeleaf</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.thymeleaf</groupId>
+            <artifactId>thymeleaf-spring4</artifactId>
+            <version>${thymeleaf.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.hibernate</groupId>
+            <artifactId>hibernate-core</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.hibernate</groupId>
+            <artifactId>hibernate-testing</artifactId>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>com.h2database</groupId>
+            <artifactId>h2</artifactId>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-test</artifactId>
+            <scope>test</scope>
+        </dependency>
+    </dependencies>
 
-	<build>
-		<plugins>
-			<plugin>
-				<artifactId>kotlin-maven-plugin</artifactId>
-				<groupId>org.jetbrains.kotlin</groupId>
-				<version>${kotlin.version}</version>
-				<configuration>
-					<compilerPlugins>
-						<plugin>spring</plugin>
-						<plugin>jpa</plugin>
-					</compilerPlugins>
-				</configuration>
-				<dependencies>
-					<dependency>
-						<groupId>org.jetbrains.kotlin</groupId>
-						<artifactId>kotlin-maven-noarg</artifactId>
-						<version>${kotlin.version}</version>
-					</dependency>
-				</dependencies>
-			</plugin>
-		</plugins>
-	</build>
+    <build>
+        <plugins>
+            <plugin>
+                <artifactId>kotlin-maven-plugin</artifactId>
+                <groupId>org.jetbrains.kotlin</groupId>
+                <version>${kotlin.version}</version>
+                <configuration>
+                    <compilerPlugins>
+                        <plugin>spring</plugin>
+                        <plugin>jpa</plugin>
+                    </compilerPlugins>
+                </configuration>
+                <dependencies>
+                    <dependency>
+                        <groupId>org.jetbrains.kotlin</groupId>
+                        <artifactId>kotlin-maven-noarg</artifactId>
+                        <version>${kotlin.version}</version>
+                    </dependency>
+                </dependencies>
+            </plugin>
+        </plugins>
+    </build>
 
-	<properties>
-		<thymeleaf.version>3.0.7.RELEASE</thymeleaf.version>
-	</properties>
+    <properties>
+        <thymeleaf.version>3.0.7.RELEASE</thymeleaf.version>
+    </properties>
 
 </project>
\ No newline at end of file
diff --git a/spring-mvc-simple-2/pom.xml b/spring-mvc-simple-2/pom.xml
index 7faa832552..307e8bc94b 100644
--- a/spring-mvc-simple-2/pom.xml
+++ b/spring-mvc-simple-2/pom.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>spring-mvc-simple-2</artifactId>
     <name>spring-mvc-simple-2</name>
@@ -8,8 +8,8 @@
     <description>Demo project for Spring Boot</description>
 
     <parent>
-        <artifactId>parent-boot-2</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-2</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../parent-boot-2</relativePath>
     </parent>
@@ -20,7 +20,7 @@
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-web</artifactId>
         </dependency>
-        
+
         <dependency>
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-test</artifactId>
@@ -78,7 +78,7 @@
             <artifactId>spring-cloud-context</artifactId>
             <version>${springcloud.version}</version>
         </dependency>
-        
+
         <dependency>
             <groupId>org.apache.httpcomponents</groupId>
             <artifactId>httpclient</artifactId>
@@ -135,7 +135,7 @@
             </build>
         </profile>
     </profiles>
-    
+
     <properties>
         <!-- The main class to start by executing java -jar -->
         <start-class>org.baeldung.boot.Application</start-class>
diff --git a/spring-mvc-simple/pom.xml b/spring-mvc-simple/pom.xml
index 580a40e50b..539e81307a 100644
--- a/spring-mvc-simple/pom.xml
+++ b/spring-mvc-simple/pom.xml
@@ -1,10 +1,11 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>spring-mvc-simple</artifactId>
-    <packaging>war</packaging>
     <version>0.0.1-SNAPSHOT</version>
     <name>spring-mvc-simple</name>
+    <packaging>war</packaging>
 
     <parent>
         <groupId>com.baeldung</groupId>
@@ -131,15 +132,16 @@
             <artifactId>json</artifactId>
             <version>${json.version}</version>
         </dependency>
-		<dependency>
-		    <groupId>org.apache.maven.surefire</groupId>
-			<artifactId>surefire-logger-api</artifactId>
-			<version>${maven-surefire-plugin.version}</version>
-			<!-- to get around bug https://github.com/junit-team/junit5/issues/1367 -->
-			<scope>test</scope>
-			<optional>true</optional>
-		</dependency>
+        <dependency>
+            <groupId>org.apache.maven.surefire</groupId>
+            <artifactId>surefire-logger-api</artifactId>
+            <version>${maven-surefire-plugin.version}</version>
+            <!-- to get around bug https://github.com/junit-team/junit5/issues/1367 -->
+            <scope>test</scope>
+            <optional>true</optional>
+        </dependency>
     </dependencies>
+
     <build>
         <pluginManagement>
             <plugins>
diff --git a/spring-mvc-velocity/pom.xml b/spring-mvc-velocity/pom.xml
index 5954e48e8f..2269f05fa4 100644
--- a/spring-mvc-velocity/pom.xml
+++ b/spring-mvc-velocity/pom.xml
@@ -1,5 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>spring-mvc-velocity</artifactId>
     <version>0.1-SNAPSHOT</version>
@@ -104,7 +105,6 @@
     </build>
 
     <properties>
-
         <!-- testing -->
         <powermock.version>1.6.6</powermock.version>
 
@@ -117,7 +117,6 @@
         <!-- Maven plugins -->
         <maven-resources-plugin.version>2.7</maven-resources-plugin.version>
         <cargo-maven2-plugin.version>1.6.1</cargo-maven2-plugin.version>
-
     </properties>
 
 </project>
\ No newline at end of file
diff --git a/spring-mvc-views/pom.xml b/spring-mvc-views/pom.xml
index c3a3540fce..b23403fe31 100644
--- a/spring-mvc-views/pom.xml
+++ b/spring-mvc-views/pom.xml
@@ -14,20 +14,6 @@
         <relativePath>../parent-spring-5</relativePath>
     </parent>
 
-
-    <properties>
-        <java.version>1.8</java.version>
-        <javax.servlet.jsp-api.version>2.3.3</javax.servlet.jsp-api.version>
-        <javax.servlet-api.version>4.0.1</javax.servlet-api.version>
-        <spring.version>5.2.1.RELEASE</spring.version>
-        <spring.security.version>5.2.1.RELEASE</spring.security.version>
-        <spring.data.version>2.2.2.RELEASE</spring.data.version>
-        <cglib.version>2.2.2</cglib.version>
-        <hsqldb.version>2.5.0</hsqldb.version>
-        <hibernate.version>5.4.9.Final</hibernate.version>
-        <deploy-path>enter-location-of-server</deploy-path>
-    </properties>
-
     <dependencies>
         <dependency>
             <groupId>org.springframework</groupId>
@@ -92,7 +78,7 @@
     </dependencies>
 
     <build>
-        <finalName>spring-mvc-theme</finalName>
+        <finalName>spring-mvc-views</finalName>
         <plugins>
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
@@ -117,4 +103,18 @@
             </plugin>
         </plugins>
     </build>
+
+    <properties>
+        <java.version>1.8</java.version>
+        <javax.servlet.jsp-api.version>2.3.3</javax.servlet.jsp-api.version>
+        <javax.servlet-api.version>4.0.1</javax.servlet-api.version>
+        <spring.version>5.2.1.RELEASE</spring.version>
+        <spring.security.version>5.2.1.RELEASE</spring.security.version>
+        <spring.data.version>2.2.2.RELEASE</spring.data.version>
+        <cglib.version>2.2.2</cglib.version>
+        <hsqldb.version>2.5.0</hsqldb.version>
+        <hibernate.version>5.4.9.Final</hibernate.version>
+        <deploy-path>enter-location-of-server</deploy-path>
+    </properties>
+
 </project>
\ No newline at end of file
diff --git a/spring-mvc-webflow/pom.xml b/spring-mvc-webflow/pom.xml
index 219a2be689..5a6856385c 100644
--- a/spring-mvc-webflow/pom.xml
+++ b/spring-mvc-webflow/pom.xml
@@ -1,9 +1,9 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung</groupId>
-    <version>0.1-SNAPSHOT</version>
     <artifactId>spring-mvc-webflow</artifactId>
+    <version>0.1-SNAPSHOT</version>
     <name>spring-mvc-webflow</name>
     <packaging>war</packaging>
 
@@ -52,14 +52,14 @@
             <artifactId>log4j-over-slf4j</artifactId>
             <version>${org.slf4j.version}</version>
         </dependency>
-        
+
         <!-- Test -->
         <dependency>
-			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-starter-test</artifactId>
-			<version>1.5.10.RELEASE</version>
-			<scope>test</scope>
-		</dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-test</artifactId>
+            <version>1.5.10.RELEASE</version>
+            <scope>test</scope>
+        </dependency>
 
     </dependencies>
 
@@ -96,7 +96,6 @@
         <!-- Maven plugins -->
         <maven-resources-plugin.version>2.7</maven-resources-plugin.version>
         <cargo-maven2-plugin.version>1.6.1</cargo-maven2-plugin.version>
-
     </properties>
 
 </project>
\ No newline at end of file
diff --git a/spring-mvc-xml/pom.xml b/spring-mvc-xml/pom.xml
index 9f7a24b358..e93b426119 100644
--- a/spring-mvc-xml/pom.xml
+++ b/spring-mvc-xml/pom.xml
@@ -1,9 +1,10 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0"
     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
     xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <version>0.1-SNAPSHOT</version>
     <artifactId>spring-mvc-xml</artifactId>
+    <version>0.1-SNAPSHOT</version>
     <name>spring-mvc-xml</name>
     <packaging>war</packaging>
 
@@ -111,7 +112,6 @@
             </plugin>
 
         </plugins>
-
     </build>
 
     <properties>
diff --git a/spring-protobuf/pom.xml b/spring-protobuf/pom.xml
index 372f969bd7..f43faef0d1 100644
--- a/spring-protobuf/pom.xml
+++ b/spring-protobuf/pom.xml
@@ -1,14 +1,14 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung</groupId>
     <artifactId>spring-protobuf</artifactId>
     <version>0.1-SNAPSHOT</version>
     <name>spring-protobuf</name>
 
     <parent>
-        <artifactId>parent-boot-2</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-2</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../parent-boot-2</relativePath>
     </parent>
diff --git a/spring-quartz/pom.xml b/spring-quartz/pom.xml
index 4c7ac6eee9..283d1a1734 100644
--- a/spring-quartz/pom.xml
+++ b/spring-quartz/pom.xml
@@ -1,17 +1,16 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung</groupId>
     <artifactId>spring-quartz</artifactId>
     <name>spring-quartz</name>
     <version>0.0.1-SNAPSHOT</version>
-    <description>Demo project for Scheduling in Spring with Quartz</description>
     <packaging>jar</packaging>
+    <description>Demo project for Scheduling in Spring with Quartz</description>
 
     <parent>
-        <artifactId>parent-boot-2</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-2</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../parent-boot-2</relativePath>
     </parent>
diff --git a/spring-reactive-kotlin/pom.xml b/spring-reactive-kotlin/pom.xml
index 90764111cb..3a693837df 100644
--- a/spring-reactive-kotlin/pom.xml
+++ b/spring-reactive-kotlin/pom.xml
@@ -1,57 +1,58 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
-	<modelVersion>4.0.0</modelVersion>
-	<artifactId>spring-reactive-kotlin</artifactId>
-	<name>spring-reactive-kotlin</name>
-	<packaging>jar</packaging>
-	<description>Demo project for Spring Boot</description>
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <artifactId>spring-reactive-kotlin</artifactId>
+    <name>spring-reactive-kotlin</name>
+    <description>Demo project for Spring Boot</description>
+    <packaging>jar</packaging>
 
-	<parent>
-		<artifactId>parent-kotlin</artifactId>
-		<groupId>com.baeldung</groupId>
-		<version>1.0.0-SNAPSHOT</version>
-		<relativePath>../parent-kotlin</relativePath>
-	</parent>
+    <parent>
+        <groupId>com.baeldung</groupId>
+        <artifactId>parent-kotlin</artifactId>
+        <version>1.0.0-SNAPSHOT</version>
+        <relativePath>../parent-kotlin</relativePath>
+    </parent>
 
-	<dependencies>
-		<dependency>
-			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-starter-web</artifactId>
-		</dependency>
-		<dependency>
-			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-starter-webflux</artifactId>
-		</dependency>
-		<dependency>
-			<groupId>com.fasterxml.jackson.module</groupId>
-			<artifactId>jackson-module-kotlin</artifactId>
-		</dependency>
-	
-		<dependency>
-			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-starter-test</artifactId>
-			<scope>test</scope>
-		</dependency>
-		<dependency>
-			<groupId>io.projectreactor</groupId>
-			<artifactId>reactor-test</artifactId>
-			<scope>test</scope>
-		</dependency>
-	</dependencies>
+    <dependencies>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-web</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-webflux</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>com.fasterxml.jackson.module</groupId>
+            <artifactId>jackson-module-kotlin</artifactId>
+        </dependency>
+
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-test</artifactId>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>io.projectreactor</groupId>
+            <artifactId>reactor-test</artifactId>
+            <scope>test</scope>
+        </dependency>
+    </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <artifactId>kotlin-maven-plugin</artifactId>
+                <groupId>org.jetbrains.kotlin</groupId>
+                <version>${kotlin.version}</version>
+                <configuration>
+                    <args>
+                        <arg>-Xjsr305=strict</arg>
+                    </args>
+                </configuration>
+            </plugin>
+        </plugins>
+    </build>
 
-	<build>
-		<plugins>
-			<plugin>
-				<artifactId>kotlin-maven-plugin</artifactId>
-				<groupId>org.jetbrains.kotlin</groupId>
-				<version>${kotlin.version}</version>
-				<configuration>
-					<args>
-						<arg>-Xjsr305=strict</arg>
-					</args>
-				</configuration>
-			</plugin>
-		</plugins>
-	</build>
 </project>
diff --git a/spring-reactor/pom.xml b/spring-reactor/pom.xml
index 2d69096c58..0115826fd6 100644
--- a/spring-reactor/pom.xml
+++ b/spring-reactor/pom.xml
@@ -1,7 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung</groupId>
     <artifactId>spring-reactor</artifactId>
     <version>1.0-SNAPSHOT</version>
     <name>spring-reactor</name>
@@ -9,8 +9,8 @@
     <url>http://maven.apache.org</url>
 
     <parent>
-        <artifactId>parent-boot-2</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-2</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../parent-boot-2</relativePath>
     </parent>
@@ -40,4 +40,5 @@
         <spring-cloud-sleuth.version>2.0.2.RELEASE</spring-cloud-sleuth.version>
         <reactor.version>2.0.8.RELEASE</reactor.version>
     </properties>
+
 </project>
diff --git a/spring-remoting/pom.xml b/spring-remoting/pom.xml
index e11c5b06f9..59cb9f863e 100644
--- a/spring-remoting/pom.xml
+++ b/spring-remoting/pom.xml
@@ -1,18 +1,17 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung</groupId>
     <artifactId>spring-remoting</artifactId>
     <version>1.0-SNAPSHOT</version>
     <name>spring-remoting</name>
-    <description>Parent for all projects related to Spring Remoting, except remoting-hessian-burlap</description>
     <packaging>pom</packaging>
+    <description>Parent for all projects related to Spring Remoting, except remoting-hessian-burlap</description>
     <!-- remoting-hessian-burlap needs to stick to spring-boot-1, some classes were removed in spring 5  -->
 
     <parent>
-        <artifactId>parent-boot-2</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-2</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../parent-boot-2</relativePath>
     </parent>
diff --git a/spring-remoting/remoting-amqp/pom.xml b/spring-remoting/remoting-amqp/pom.xml
index 901ce69d6b..ea0b605980 100644
--- a/spring-remoting/remoting-amqp/pom.xml
+++ b/spring-remoting/remoting-amqp/pom.xml
@@ -1,13 +1,14 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>remoting-amqp</artifactId>
-    <packaging>pom</packaging>
     <name>remoting-amqp</name>
+    <packaging>pom</packaging>
 
     <parent>
-        <artifactId>spring-remoting</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>spring-remoting</artifactId>
         <version>1.0-SNAPSHOT</version>
     </parent>
 
diff --git a/spring-remoting/remoting-amqp/remoting-amqp-client/pom.xml b/spring-remoting/remoting-amqp/remoting-amqp-client/pom.xml
index 40b2fa7965..17c5b31e62 100644
--- a/spring-remoting/remoting-amqp/remoting-amqp-client/pom.xml
+++ b/spring-remoting/remoting-amqp/remoting-amqp-client/pom.xml
@@ -1,3 +1,4 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
@@ -7,8 +8,8 @@
     <url>http://maven.apache.org</url>
 
     <parent>
-        <artifactId>remoting-amqp</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>remoting-amqp</artifactId>
         <version>1.0-SNAPSHOT</version>
     </parent>
 
@@ -29,4 +30,5 @@
             <version>${project.version}</version>
         </dependency>
     </dependencies>
+
 </project>
diff --git a/spring-remoting/remoting-amqp/remoting-amqp-server/pom.xml b/spring-remoting/remoting-amqp/remoting-amqp-server/pom.xml
index e8eb665815..13d0c0a6da 100644
--- a/spring-remoting/remoting-amqp/remoting-amqp-server/pom.xml
+++ b/spring-remoting/remoting-amqp/remoting-amqp-server/pom.xml
@@ -1,5 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>remoting-amqp-server</artifactId>
     <name>remoting-amqp-server</name>
@@ -7,8 +8,8 @@
     <url>http://maven.apache.org</url>
 
     <parent>
-        <artifactId>remoting-amqp</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>remoting-amqp</artifactId>
         <version>1.0-SNAPSHOT</version>
     </parent>
 
diff --git a/spring-remoting/remoting-hessian-burlap/pom.xml b/spring-remoting/remoting-hessian-burlap/pom.xml
index e94d1bee82..fac6e1cb2e 100644
--- a/spring-remoting/remoting-hessian-burlap/pom.xml
+++ b/spring-remoting/remoting-hessian-burlap/pom.xml
@@ -4,13 +4,13 @@
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>remoting-hessian-burlap</artifactId>
-	<name>remoting-hessian-burlap</name>
     <version>1.0-SNAPSHOT</version>
+    <name>remoting-hessian-burlap</name>
     <packaging>pom</packaging>
-	
-	<parent>
-        <artifactId>parent-boot-1</artifactId>
+
+    <parent>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-1</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../../parent-boot-1</relativePath>
     </parent>
@@ -19,4 +19,5 @@
         <module>remoting-hessian-burlap-server</module>
         <module>remoting-hessian-burlap-client</module>
     </modules>
+
 </project>
\ No newline at end of file
diff --git a/spring-remoting/remoting-hessian-burlap/remoting-hessian-burlap-client/pom.xml b/spring-remoting/remoting-hessian-burlap/remoting-hessian-burlap-client/pom.xml
index ec237ca815..1f6181a365 100644
--- a/spring-remoting/remoting-hessian-burlap/remoting-hessian-burlap-client/pom.xml
+++ b/spring-remoting/remoting-hessian-burlap/remoting-hessian-burlap-client/pom.xml
@@ -5,13 +5,13 @@
     <modelVersion>4.0.0</modelVersion>
     <artifactId>remoting-hessian-burlap-client</artifactId>
     <name>remoting-hessian-burlap-client</name>
-	
-	<parent>
-        <artifactId>remoting-hessian-burlap</artifactId>
+
+    <parent>
         <groupId>com.baeldung</groupId>
+        <artifactId>remoting-hessian-burlap</artifactId>
         <version>1.0-SNAPSHOT</version>
     </parent>
-	
+
     <dependencies>
         <dependency>
             <groupId>org.springframework.boot</groupId>
@@ -58,4 +58,5 @@
         </dependency>
         <!-- test -->
     </dependencies>
+
 </project>
\ No newline at end of file
diff --git a/spring-remoting/remoting-hessian-burlap/remoting-hessian-burlap-server/pom.xml b/spring-remoting/remoting-hessian-burlap/remoting-hessian-burlap-server/pom.xml
index fa16a9a9b1..6e4f2e81e4 100644
--- a/spring-remoting/remoting-hessian-burlap/remoting-hessian-burlap-server/pom.xml
+++ b/spring-remoting/remoting-hessian-burlap/remoting-hessian-burlap-server/pom.xml
@@ -4,11 +4,11 @@
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>remoting-hessian-burlap-server</artifactId>
-	<name>remoting-hessian-burlap-server</name>
-	
+    <name>remoting-hessian-burlap-server</name>
+
     <parent>
-        <artifactId>remoting-hessian-burlap</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>remoting-hessian-burlap</artifactId>
         <version>1.0-SNAPSHOT</version>
     </parent>
 
diff --git a/spring-remoting/remoting-http/pom.xml b/spring-remoting/remoting-http/pom.xml
index c4ed511bb5..2e5195a909 100644
--- a/spring-remoting/remoting-http/pom.xml
+++ b/spring-remoting/remoting-http/pom.xml
@@ -4,10 +4,10 @@
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>remoting-http</artifactId>
-	<name>remoting-http</name>
+    <name>remoting-http</name>
     <packaging>pom</packaging>
     <description>Parent for all modules related to HTTP Spring Remoting.</description>
-    
+
     <parent>
         <groupId>com.baeldung</groupId>
         <artifactId>spring-remoting</artifactId>
@@ -19,4 +19,5 @@
         <module>remoting-http-client</module>
         <module>remoting-http-api</module>
     </modules>
+
 </project>
\ No newline at end of file
diff --git a/spring-remoting/remoting-http/remoting-http-api/pom.xml b/spring-remoting/remoting-http/remoting-http-api/pom.xml
index 579255060d..697c3f44e5 100644
--- a/spring-remoting/remoting-http/remoting-http-api/pom.xml
+++ b/spring-remoting/remoting-http/remoting-http-api/pom.xml
@@ -6,10 +6,10 @@
     <artifactId>remoting-http-api</artifactId>
     <name>remoting-http-api</name>
     <description>API definition shared between client and server.</description>
-	
-	<parent>
-        <artifactId>remoting-http</artifactId>
+
+    <parent>
         <groupId>com.baeldung</groupId>
+        <artifactId>remoting-http</artifactId>
         <version>1.0-SNAPSHOT</version>
     </parent>
 
diff --git a/spring-remoting/remoting-http/remoting-http-client/pom.xml b/spring-remoting/remoting-http/remoting-http-client/pom.xml
index 56412d3cdf..03de2d3e4d 100644
--- a/spring-remoting/remoting-http/remoting-http-client/pom.xml
+++ b/spring-remoting/remoting-http/remoting-http-client/pom.xml
@@ -4,9 +4,9 @@
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>remoting-http-client</artifactId>
-	<name>remoting-http-client</name>
+    <name>remoting-http-client</name>
     <description>Shows how to invoke a remote service using Spring Remoting HTTP.</description>
-	
+
     <parent>
         <groupId>com.baeldung</groupId>
         <artifactId>remoting-http</artifactId>
@@ -30,4 +30,5 @@
             <version>${project.version}</version>
         </dependency>
     </dependencies>
+
 </project>
\ No newline at end of file
diff --git a/spring-remoting/remoting-http/remoting-http-server/pom.xml b/spring-remoting/remoting-http/remoting-http-server/pom.xml
index c3f87e776e..872688e683 100644
--- a/spring-remoting/remoting-http/remoting-http-server/pom.xml
+++ b/spring-remoting/remoting-http/remoting-http-server/pom.xml
@@ -4,9 +4,9 @@
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>remoting-http-server</artifactId>
-	<name>remoting-http-server</name>
+    <name>remoting-http-server</name>
     <description>Shows how to expose a service using Spring Remoting HTTP.</description>
-	
+
     <parent>
         <groupId>com.baeldung</groupId>
         <artifactId>remoting-http</artifactId>
@@ -24,4 +24,5 @@
             <version>${project.version}</version>
         </dependency>
     </dependencies>
+
 </project>
\ No newline at end of file
diff --git a/spring-remoting/remoting-jms/pom.xml b/spring-remoting/remoting-jms/pom.xml
index e24b5b7929..33299cd2c5 100644
--- a/spring-remoting/remoting-jms/pom.xml
+++ b/spring-remoting/remoting-jms/pom.xml
@@ -4,12 +4,12 @@
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>remoting-jms</artifactId>
-	<name>remoting-jms</name>
+    <name>remoting-jms</name>
     <packaging>pom</packaging>
 
     <parent>
-        <artifactId>spring-remoting</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>spring-remoting</artifactId>
         <version>1.0-SNAPSHOT</version>
     </parent>
 
diff --git a/spring-remoting/remoting-jms/remoting-jms-client/pom.xml b/spring-remoting/remoting-jms/remoting-jms-client/pom.xml
index 043ced8527..d8b9701600 100644
--- a/spring-remoting/remoting-jms/remoting-jms-client/pom.xml
+++ b/spring-remoting/remoting-jms/remoting-jms-client/pom.xml
@@ -4,11 +4,11 @@
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>remoting-jms-client</artifactId>
-	<name>remoting-jms-client</name>
+    <name>remoting-jms-client</name>
 
     <parent>
-        <artifactId>remoting-jms</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>remoting-jms</artifactId>
         <version>1.0-SNAPSHOT</version>
     </parent>
 
diff --git a/spring-remoting/remoting-jms/remoting-jms-server/pom.xml b/spring-remoting/remoting-jms/remoting-jms-server/pom.xml
index 13de66977a..5d6d63219d 100644
--- a/spring-remoting/remoting-jms/remoting-jms-server/pom.xml
+++ b/spring-remoting/remoting-jms/remoting-jms-server/pom.xml
@@ -4,11 +4,11 @@
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>remoting-jms-server</artifactId>
-	<name>remoting-jms-server</name>
-	
+    <name>remoting-jms-server</name>
+
     <parent>
-        <artifactId>remoting-jms</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>remoting-jms</artifactId>
         <version>1.0-SNAPSHOT</version>
     </parent>
 
diff --git a/spring-remoting/remoting-rmi/pom.xml b/spring-remoting/remoting-rmi/pom.xml
index 7b6e807550..037e73658e 100644
--- a/spring-remoting/remoting-rmi/pom.xml
+++ b/spring-remoting/remoting-rmi/pom.xml
@@ -4,17 +4,18 @@
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>remoting-rmi</artifactId>
-	<name>remoting-rmi</name>
+    <name>remoting-rmi</name>
     <packaging>pom</packaging>
-	
-	<parent>
-        <artifactId>spring-remoting</artifactId>
+
+    <parent>
         <groupId>com.baeldung</groupId>
+        <artifactId>spring-remoting</artifactId>
         <version>1.0-SNAPSHOT</version>
     </parent>
-    
-	<modules>
+
+    <modules>
         <module>remoting-rmi-server</module>
         <module>remoting-rmi-client</module>
     </modules>
+
 </project>
\ No newline at end of file
diff --git a/spring-remoting/remoting-rmi/remoting-rmi-client/pom.xml b/spring-remoting/remoting-rmi/remoting-rmi-client/pom.xml
index 4ac0283e94..5d8d82d6ab 100644
--- a/spring-remoting/remoting-rmi/remoting-rmi-client/pom.xml
+++ b/spring-remoting/remoting-rmi/remoting-rmi-client/pom.xml
@@ -4,14 +4,14 @@
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>remoting-rmi-client</artifactId>
-	<name>remoting-rmi-client</name>
+    <name>remoting-rmi-client</name>
 
     <parent>
-        <artifactId>remoting-rmi</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>remoting-rmi</artifactId>
         <version>1.0-SNAPSHOT</version>
     </parent>
-	
+
     <dependencies>
         <dependency>
             <groupId>org.springframework.boot</groupId>
@@ -29,4 +29,5 @@
             <version>${project.version}</version>
         </dependency>
     </dependencies>
+
 </project>
\ No newline at end of file
diff --git a/spring-remoting/remoting-rmi/remoting-rmi-server/pom.xml b/spring-remoting/remoting-rmi/remoting-rmi-server/pom.xml
index 2a19ebbbf6..94bdccd093 100644
--- a/spring-remoting/remoting-rmi/remoting-rmi-server/pom.xml
+++ b/spring-remoting/remoting-rmi/remoting-rmi-server/pom.xml
@@ -4,11 +4,11 @@
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>remoting-rmi-server</artifactId>
-	<name>remoting-rmi-server</name>
-	
+    <name>remoting-rmi-server</name>
+
     <parent>
-        <artifactId>remoting-rmi</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>remoting-rmi</artifactId>
         <version>1.0-SNAPSHOT</version>
     </parent>
 
diff --git a/spring-rest-angular/pom.xml b/spring-rest-angular/pom.xml
index 69becfb4ae..1c6ab77a2d 100644
--- a/spring-rest-angular/pom.xml
+++ b/spring-rest-angular/pom.xml
@@ -1,15 +1,15 @@
 <?xml version="1.0"?>
 <project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd" xmlns="http://maven.apache.org/POM/4.0.0"
-    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>spring-rest-angular</artifactId>
-    <name>spring-rest-angular</name>
     <version>1.0</version>
+    <name>spring-rest-angular</name>
     <packaging>war</packaging>
 
     <parent>
-        <artifactId>parent-boot-2</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-2</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../parent-boot-2</relativePath>
     </parent>
@@ -60,7 +60,7 @@
     </dependencies>
 
     <build>
-        <finalName>angular-spring-rest-sample</finalName>
+        <finalName>spring-rest-angular</finalName>
         <plugins>
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
diff --git a/spring-rest-compress/pom.xml b/spring-rest-compress/pom.xml
index ca00bdc659..9ff0be9682 100644
--- a/spring-rest-compress/pom.xml
+++ b/spring-rest-compress/pom.xml
@@ -1,15 +1,14 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung</groupId>
     <artifactId>spring-rest-compress</artifactId>
     <version>0.0.1-SNAPSHOT</version>
     <name>spring-rest-compress</name>
 
     <parent>
-        <artifactId>parent-boot-2</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-2</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../parent-boot-2</relativePath>
     </parent>
@@ -62,4 +61,5 @@
         <java.version>1.8</java.version>
         <commons-io.version>2.6</commons-io.version>
     </properties>
+
 </project>
diff --git a/spring-rest-hal-browser/pom.xml b/spring-rest-hal-browser/pom.xml
index cc3b1b65fe..94ce837b27 100644
--- a/spring-rest-hal-browser/pom.xml
+++ b/spring-rest-hal-browser/pom.xml
@@ -1,58 +1,57 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0"
-  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
-  <modelVersion>4.0.0</modelVersion>
-  <groupId>com.baeldung</groupId>
-  <artifactId>spring-rest-hal-browser</artifactId>
-  <version>1.0-SNAPSHOT</version>
-  <name>spring-rest-hal-browser</name>
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <artifactId>spring-rest-hal-browser</artifactId>
+    <version>1.0-SNAPSHOT</version>
+    <name>spring-rest-hal-browser</name>
 
-  <parent>
-    <artifactId>parent-boot-1</artifactId>
-    <groupId>com.baeldung</groupId>
-    <version>0.0.1-SNAPSHOT</version>
-    <relativePath>../parent-boot-1</relativePath>
-  </parent>
+    <parent>
+        <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-1</artifactId>
+        <version>0.0.1-SNAPSHOT</version>
+        <relativePath>../parent-boot-1</relativePath>
+    </parent>
 
-  <dependencies>
-    <!-- https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-starter-web -->
-    <dependency>
-      <groupId>org.springframework.boot</groupId>
-      <artifactId>spring-boot-starter-web</artifactId>
-      <version>2.0.3.RELEASE</version>
-    </dependency>
-    <!-- https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-starter-data-jpa -->
-    <dependency>
-      <groupId>org.springframework.boot</groupId>
-      <artifactId>spring-boot-starter-data-jpa</artifactId>
-      <version>2.0.3.RELEASE</version>
-    </dependency>
-    <!-- https://mvnrepository.com/artifact/org.springframework.data/spring-data-rest-hal-browser -->
-    <dependency>
-      <groupId>org.springframework.data</groupId>
-      <artifactId>spring-data-rest-hal-browser</artifactId>
-      <version>3.0.8.RELEASE</version>
-    </dependency>
-    <!-- https://mvnrepository.com/artifact/com.h2database/h2 -->
-    <dependency>
-      <groupId>com.h2database</groupId>
-      <artifactId>h2</artifactId>
-      <version>1.4.197</version>
-    </dependency>
-  </dependencies>
+    <dependencies>
+        <!-- https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-starter-web -->
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-web</artifactId>
+            <version>2.0.3.RELEASE</version>
+        </dependency>
+        <!-- https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-starter-data-jpa -->
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-data-jpa</artifactId>
+            <version>2.0.3.RELEASE</version>
+        </dependency>
+        <!-- https://mvnrepository.com/artifact/org.springframework.data/spring-data-rest-hal-browser -->
+        <dependency>
+            <groupId>org.springframework.data</groupId>
+            <artifactId>spring-data-rest-hal-browser</artifactId>
+            <version>3.0.8.RELEASE</version>
+        </dependency>
+        <!-- https://mvnrepository.com/artifact/com.h2database/h2 -->
+        <dependency>
+            <groupId>com.h2database</groupId>
+            <artifactId>h2</artifactId>
+            <version>1.4.197</version>
+        </dependency>
+    </dependencies>
 
-  <build>
-    <plugins>
-      <plugin>
-        <groupId>org.apache.maven.plugins</groupId>
-        <artifactId>maven-compiler-plugin</artifactId>
-        <configuration>
-          <source>1.8</source>
-          <target>1.8</target>
-        </configuration>
-      </plugin>
-    </plugins>
-  </build>
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-compiler-plugin</artifactId>
+                <configuration>
+                    <source>1.8</source>
+                    <target>1.8</target>
+                </configuration>
+            </plugin>
+        </plugins>
+    </build>
 
 </project>
\ No newline at end of file
diff --git a/spring-rest-query-language/pom.xml b/spring-rest-query-language/pom.xml
index 293bac9479..25b149367e 100644
--- a/spring-rest-query-language/pom.xml
+++ b/spring-rest-query-language/pom.xml
@@ -1,5 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>spring-rest-query-language</artifactId>
     <version>0.1-SNAPSHOT</version>
@@ -7,8 +8,8 @@
     <packaging>war</packaging>
 
     <parent>
-        <artifactId>parent-boot-2</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-2</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../parent-boot-2</relativePath>
     </parent>
@@ -149,7 +150,7 @@
         <dependency>
             <groupId>org.javassist</groupId>
             <artifactId>javassist</artifactId>
-			<version>${javassist.version}</version>
+            <version>${javassist.version}</version>
         </dependency>
         <dependency>
             <groupId>mysql</groupId>
@@ -352,10 +353,10 @@
         <xstream.version>1.4.9</xstream.version>
         <javassist.version>3.21.0-GA</javassist.version>
         <xml-apis.version>1.4.01</xml-apis.version>
-		
+
         <!-- util -->
         <guava.version>19.0</guava.version>
-        
+
         <!-- Maven plugins -->
         <cargo-maven2-plugin.version>1.7.0</cargo-maven2-plugin.version>
         <apt-maven-plugin.version>1.1.3</apt-maven-plugin.version>
diff --git a/spring-rest-shell/pom.xml b/spring-rest-shell/pom.xml
index acf33cf98f..1148a5c093 100644
--- a/spring-rest-shell/pom.xml
+++ b/spring-rest-shell/pom.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>spring-rest-shell</artifactId>
     <name>spring-rest-shell</name>
@@ -8,8 +8,8 @@
     <description>A simple project to demonstrate Spring REST Shell features.</description>
 
     <parent>
-        <artifactId>parent-boot-2</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-2</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../parent-boot-2</relativePath>
     </parent>
diff --git a/spring-rest-simple/pom.xml b/spring-rest-simple/pom.xml
index 263e451c62..59f7a94b8d 100644
--- a/spring-rest-simple/pom.xml
+++ b/spring-rest-simple/pom.xml
@@ -1,15 +1,15 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung</groupId>
     <artifactId>spring-rest-simple</artifactId>
     <version>0.1-SNAPSHOT</version>
     <name>spring-rest-simple</name>
     <packaging>war</packaging>
 
     <parent>
-        <artifactId>parent-boot-2</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-2</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../parent-boot-2</relativePath>
     </parent>
@@ -183,7 +183,7 @@
     </dependencies>
 
     <build>
-        <finalName>spring-rest</finalName>
+        <finalName>spring-rest-simple</finalName>
         <resources>
             <resource>
                 <directory>src/main/resources</directory>
@@ -263,7 +263,7 @@
                 </plugins>
             </build>
         </profile>
-        
+
         <profile>
             <id>live</id>
             <build>
diff --git a/spring-rest-testing/pom.xml b/spring-rest-testing/pom.xml
index 6475281d18..dcd8b677be 100644
--- a/spring-rest-testing/pom.xml
+++ b/spring-rest-testing/pom.xml
@@ -1,15 +1,15 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung</groupId>
     <artifactId>spring-rest-testing</artifactId>
     <version>0.1-SNAPSHOT</version>
     <name>spring-rest-testing</name>
     <packaging>war</packaging>
 
     <parent>
-        <artifactId>parent-boot-2</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-2</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../parent-boot-2</relativePath>
     </parent>
@@ -197,7 +197,7 @@
     </dependencies>
 
     <build>
-        <finalName>spring-rest-full</finalName>
+        <finalName>spring-rest-testing</finalName>
         <resources>
             <resource>
                 <directory>src/main/resources</directory>
diff --git a/spring-rest/pom.xml b/spring-rest/pom.xml
index fce04a8f2d..0c3e5f399f 100644
--- a/spring-rest/pom.xml
+++ b/spring-rest/pom.xml
@@ -1,5 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>spring-rest</artifactId>
     <version>0.1-SNAPSHOT</version>
@@ -7,8 +8,8 @@
     <packaging>war</packaging>
 
     <parent>
-        <artifactId>parent-boot-2</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-2</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../parent-boot-2</relativePath>
     </parent>
@@ -226,11 +227,8 @@
                 </plugins>
             </build>
         </profile>
-
     </profiles>
 
-
-
     <properties>
         <commons-fileupload.version>1.3.2</commons-fileupload.version>
         <kryo.version>4.0.0</kryo.version>
diff --git a/spring-resttemplate/pom.xml b/spring-resttemplate/pom.xml
index 26a3143d6d..0b5d0b20d0 100644
--- a/spring-resttemplate/pom.xml
+++ b/spring-resttemplate/pom.xml
@@ -1,15 +1,15 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung</groupId>
     <artifactId>spring-resttemplate</artifactId>
     <version>0.1-SNAPSHOT</version>
     <name>spring-resttemplate</name>
     <packaging>war</packaging>
 
     <parent>
-        <artifactId>parent-boot-2</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-2</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../parent-boot-2</relativePath>
     </parent>
diff --git a/spring-roo/pom.xml b/spring-roo/pom.xml
index eb3a680d93..456642b1f0 100644
--- a/spring-roo/pom.xml
+++ b/spring-roo/pom.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8" standalone="no"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <!-- Spring IO Platform is the parent of the generated application to be able to use Spring Boot and all its default configuration -->
     <modelVersion>4.0.0</modelVersion>
     <groupId>com.baeldung</groupId>
@@ -13,7 +13,7 @@
         <groupId>io.spring.platform</groupId>
         <artifactId>platform-bom</artifactId>
         <version>Athens-RELEASE</version>
-        <relativePath />
+        <relativePath/>
     </parent>
 
     <dependencies>
@@ -238,7 +238,6 @@
     </dependencies>
 
     <build>
-
         <pluginManagement>
             <plugins>
                 <plugin>
diff --git a/spring-scheduling/pom.xml b/spring-scheduling/pom.xml
index 21327cf52f..a337de39b7 100644
--- a/spring-scheduling/pom.xml
+++ b/spring-scheduling/pom.xml
@@ -1,3 +1,4 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
@@ -7,8 +8,8 @@
     <packaging>war</packaging>
 
     <parent>
-        <artifactId>parent-boot-2</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-2</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../parent-boot-2</relativePath>
     </parent>
diff --git a/spring-security-acl/pom.xml b/spring-security-acl/pom.xml
index 8acc39b785..8962c137a8 100644
--- a/spring-security-acl/pom.xml
+++ b/spring-security-acl/pom.xml
@@ -1,16 +1,16 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>spring-security-acl</artifactId>
     <version>0.0.1-SNAPSHOT</version>
     <name>spring-security-acl</name>
-    <description>Spring Security ACL</description>
     <packaging>war</packaging>
+    <description>Spring Security ACL</description>
 
     <parent>
-        <artifactId>parent-boot-1</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-1</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../parent-boot-1</relativePath>
     </parent>
diff --git a/spring-security-angular/server/pom.xml b/spring-security-angular/server/pom.xml
index 6474bb5ed6..2c2e5ab614 100644
--- a/spring-security-angular/server/pom.xml
+++ b/spring-security-angular/server/pom.xml
@@ -2,7 +2,6 @@
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung</groupId>
     <artifactId>server</artifactId>
     <version>0.0.1-SNAPSHOT</version>
     <name>server</name>
diff --git a/spring-security-cache-control/pom.xml b/spring-security-cache-control/pom.xml
index e68f92d2ee..2e018b68d9 100644
--- a/spring-security-cache-control/pom.xml
+++ b/spring-security-cache-control/pom.xml
@@ -1,15 +1,14 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung</groupId>
     <artifactId>spring-security-cache-control</artifactId>
     <version>1.0-SNAPSHOT</version>
-	<name>spring-security-cache-control</name>
+    <name>spring-security-cache-control</name>
 
     <parent>
-        <artifactId>parent-boot-1</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-1</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../parent-boot-1</relativePath>
     </parent>
diff --git a/spring-security-core/pom.xml b/spring-security-core/pom.xml
index 00d12ed7d2..4a75983289 100644
--- a/spring-security-core/pom.xml
+++ b/spring-security-core/pom.xml
@@ -1,15 +1,15 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
     xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung</groupId>
     <artifactId>spring-security-core</artifactId>
     <version>0.1-SNAPSHOT</version>
     <name>spring-security-core</name>
     <packaging>war</packaging>
 
     <parent>
-        <artifactId>parent-boot-2</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-2</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../parent-boot-2</relativePath>
     </parent>
@@ -50,7 +50,6 @@
         </dependency>
     </dependencies>
 
-
     <build>
         <finalName>spring-security-core</finalName>
         <resources>
diff --git a/spring-security-cors/pom.xml b/spring-security-cors/pom.xml
index 0dd41e66c7..91e8f5adb6 100644
--- a/spring-security-cors/pom.xml
+++ b/spring-security-cors/pom.xml
@@ -2,11 +2,10 @@
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung</groupId>
     <artifactId>spring-security-cors</artifactId>
     <version>0.0.1-SNAPSHOT</version>
-    <packaging>jar</packaging>
     <name>spring-security-cors</name>
+    <packaging>jar</packaging>
     <description>Spring Security CORS</description>
 
     <parent>
diff --git a/spring-security-kerberos/pom.xml b/spring-security-kerberos/pom.xml
index 437e8566bb..7da1f1792b 100644
--- a/spring-security-kerberos/pom.xml
+++ b/spring-security-kerberos/pom.xml
@@ -1,16 +1,16 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0"
 	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
 	<modelVersion>4.0.0</modelVersion>
-	<groupId>com.baeldung</groupId>
 	<artifactId>spring-security-kerberos</artifactId>
 	<version>0.1-SNAPSHOT</version>
 	<name>spring-security-kerberos</name>
 	<packaging>war</packaging>
 	
 	<parent>
-		<artifactId>parent-boot-1</artifactId>
 		<groupId>com.baeldung</groupId>
+		<artifactId>parent-boot-1</artifactId>
 		<version>0.0.1-SNAPSHOT</version>
 		<relativePath>../parent-boot-1</relativePath>
 	</parent>
@@ -65,4 +65,5 @@
     <properties>
         <spring-security-kerberos.version>1.0.1.RELEASE</spring-security-kerberos.version>
     </properties>
+
 </project>
diff --git a/spring-security-mvc-boot/pom.xml b/spring-security-mvc-boot/pom.xml
index 0063a2d82b..f4e50cce4c 100644
--- a/spring-security-mvc-boot/pom.xml
+++ b/spring-security-mvc-boot/pom.xml
@@ -1,9 +1,8 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0"
-    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung</groupId>
     <artifactId>spring-security-mvc-boot</artifactId>
     <version>0.0.1-SNAPSHOT</version>
     <name>spring-security-mvc-boot</name>
@@ -11,8 +10,8 @@
     <description>Spring Security MVC Boot</description>
 
     <parent>
-        <artifactId>parent-boot-2</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-2</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../parent-boot-2</relativePath>
     </parent>
@@ -112,7 +111,6 @@
             <version>${ehcache-core.version}</version>
             <type>jar</type>
         </dependency>
-
     </dependencies>
 
     <build>
@@ -228,7 +226,6 @@
         </profile>
     </profiles>
 
-
     <properties>
         <start-class>org.baeldung.custom.Application</start-class>
         <!--If you want to run the example with the voters comment the tag 
diff --git a/spring-security-mvc-custom/pom.xml b/spring-security-mvc-custom/pom.xml
index 3bae514bc1..86aa117c91 100644
--- a/spring-security-mvc-custom/pom.xml
+++ b/spring-security-mvc-custom/pom.xml
@@ -1,7 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
     xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung</groupId>
     <artifactId>spring-security-mvc-custom</artifactId>
     <version>0.1-SNAPSHOT</version>
     <name>spring-security-mvc-custom</name>
diff --git a/spring-security-mvc-digest-auth/pom.xml b/spring-security-mvc-digest-auth/pom.xml
index 0baaea15ef..25fe71e804 100644
--- a/spring-security-mvc-digest-auth/pom.xml
+++ b/spring-security-mvc-digest-auth/pom.xml
@@ -1,3 +1,4 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
     xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
diff --git a/spring-security-mvc-jsonview/pom.xml b/spring-security-mvc-jsonview/pom.xml
index c21978203c..aef7293fa7 100644
--- a/spring-security-mvc-jsonview/pom.xml
+++ b/spring-security-mvc-jsonview/pom.xml
@@ -1,7 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung</groupId>
     <artifactId>spring-security-mvc-jsonview</artifactId>
     <version>0.1-SNAPSHOT</version>
     <name>spring-security-mvc-jsonview</name>
diff --git a/spring-security-mvc-ldap/pom.xml b/spring-security-mvc-ldap/pom.xml
index 1c5df368a7..ad4bc2eefe 100644
--- a/spring-security-mvc-ldap/pom.xml
+++ b/spring-security-mvc-ldap/pom.xml
@@ -1,15 +1,15 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung</groupId>
     <artifactId>spring-security-mvc-ldap</artifactId>
     <version>0.1-SNAPSHOT</version>
     <name>spring-security-mvc-ldap</name>
     <packaging>war</packaging>
 
     <parent>
-        <artifactId>parent-boot-1</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-1</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../parent-boot-1</relativePath>
     </parent>
diff --git a/spring-security-mvc-login/pom.xml b/spring-security-mvc-login/pom.xml
index 1ca11bc1ab..5a564667e4 100644
--- a/spring-security-mvc-login/pom.xml
+++ b/spring-security-mvc-login/pom.xml
@@ -1,7 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
     xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung</groupId>
     <artifactId>spring-security-mvc-login</artifactId>
     <version>0.1-SNAPSHOT</version>
     <name>spring-security-mvc-login</name>
diff --git a/spring-security-mvc-persisted-remember-me/pom.xml b/spring-security-mvc-persisted-remember-me/pom.xml
index 2f7989d573..282cd51450 100644
--- a/spring-security-mvc-persisted-remember-me/pom.xml
+++ b/spring-security-mvc-persisted-remember-me/pom.xml
@@ -1,7 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
     xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung</groupId>
     <artifactId>spring-security-mvc-persisted-remember-me</artifactId>
     <version>0.1-SNAPSHOT</version>
     <name>spring-security-mvc-persisted-remember-me</name>
diff --git a/spring-security-mvc-socket/pom.xml b/spring-security-mvc-socket/pom.xml
index 96031e02f7..e9941192ad 100644
--- a/spring-security-mvc-socket/pom.xml
+++ b/spring-security-mvc-socket/pom.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0"?>
 <project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd" xmlns="http://maven.apache.org/POM/4.0.0"
-    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
     <modelVersion>4.0.0</modelVersion>
     <groupId>com.baeldung.springsecuredsockets</groupId>
     <artifactId>spring-security-mvc-socket</artifactId>
@@ -147,7 +147,7 @@
             <artifactId>jackson-annotations</artifactId>
             <version>${jackson.version}</version>
         </dependency>
-        
+
         <!-- Test -->
         <dependency>
             <groupId>org.springframework.boot</groupId>
@@ -158,7 +158,7 @@
     </dependencies>
 
     <build>
-        <finalName>spring-security-mvc-socket</finalName>      
+        <finalName>spring-security-mvc-socket</finalName>
         <plugins>
             <plugin>
                 <groupId>org.apache.tomcat.maven</groupId>
diff --git a/spring-security-mvc/pom.xml b/spring-security-mvc/pom.xml
index 98ad3daa46..d8f8372142 100644
--- a/spring-security-mvc/pom.xml
+++ b/spring-security-mvc/pom.xml
@@ -1,8 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0"
-    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung</groupId>
     <artifactId>spring-security-mvc</artifactId>
     <version>0.1-SNAPSHOT</version>
     <name>spring-security-mvc</name>
diff --git a/spring-security-openid/pom.xml b/spring-security-openid/pom.xml
index 0b5eaf6270..a67f5043e4 100644
--- a/spring-security-openid/pom.xml
+++ b/spring-security-openid/pom.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>spring-security-openid</artifactId>
     <name>spring-security-openid</name>
@@ -8,8 +8,8 @@
     <description>Spring OpenID sample project</description>
 
     <parent>
-        <artifactId>parent-boot-2</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-2</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../parent-boot-2</relativePath>
     </parent>
diff --git a/spring-security-react/pom.xml b/spring-security-react/pom.xml
index 40c284af7f..96ef1c5a04 100644
--- a/spring-security-react/pom.xml
+++ b/spring-security-react/pom.xml
@@ -1,3 +1,4 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
@@ -7,11 +8,11 @@
     <packaging>war</packaging>
 
     <parent>
-		<groupId>com.baeldung</groupId>
-		<artifactId>parent-spring-4</artifactId>
-		<version>0.0.1-SNAPSHOT</version>
-		<relativePath>../parent-spring-4</relativePath>
-	</parent>
+        <groupId>com.baeldung</groupId>
+        <artifactId>parent-spring-4</artifactId>
+        <version>0.0.1-SNAPSHOT</version>
+        <relativePath>../parent-spring-4</relativePath>
+    </parent>
 
     <dependencies>
 
@@ -81,14 +82,14 @@
             <version>${jstl.version}</version>
             <scope>runtime</scope>
         </dependency>
-        
+
         <!-- Test -->
         <dependency>
-			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-starter-test</artifactId>
-			<version>1.5.10.RELEASE</version>
-			<scope>test</scope>
-		</dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-test</artifactId>
+            <version>1.5.10.RELEASE</version>
+            <scope>test</scope>
+        </dependency>
 
     </dependencies>
 
diff --git a/spring-security-rest-basic-auth/pom.xml b/spring-security-rest-basic-auth/pom.xml
index 143c61ae76..5bb74fa6e6 100644
--- a/spring-security-rest-basic-auth/pom.xml
+++ b/spring-security-rest-basic-auth/pom.xml
@@ -1,8 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
     xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-
-    <groupId>com.baeldung</groupId>
     <artifactId>spring-security-rest-basic-auth</artifactId>
     <version>0.2-SNAPSHOT</version>
     <name>spring-security-rest-basic-auth</name>
diff --git a/spring-security-rest-custom/pom.xml b/spring-security-rest-custom/pom.xml
index 4bab9b9d95..d8e53d5b38 100644
--- a/spring-security-rest-custom/pom.xml
+++ b/spring-security-rest-custom/pom.xml
@@ -1,15 +1,15 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung</groupId>
     <artifactId>spring-security-rest-custom</artifactId>
     <version>0.1-SNAPSHOT</version>
     <name>spring-security-rest-custom</name>
     <packaging>war</packaging>
 
     <parent>
-        <artifactId>parent-boot-2</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-2</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../parent-boot-2</relativePath>
     </parent>
diff --git a/spring-security-rest/pom.xml b/spring-security-rest/pom.xml
index a66909a68e..6b29d6ea7f 100644
--- a/spring-security-rest/pom.xml
+++ b/spring-security-rest/pom.xml
@@ -1,7 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-
     <artifactId>spring-security-rest</artifactId>
     <version>0.1-SNAPSHOT</version>
     <name>spring-security-rest</name>
@@ -282,4 +282,5 @@
         <!-- Maven plugins -->
         <cargo-maven2-plugin.version>1.6.1</cargo-maven2-plugin.version>
     </properties>
+
 </project>
diff --git a/spring-security-sso/pom.xml b/spring-security-sso/pom.xml
index ed8ad87a62..c921cf1867 100644
--- a/spring-security-sso/pom.xml
+++ b/spring-security-sso/pom.xml
@@ -1,3 +1,4 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
@@ -8,8 +9,8 @@
     <packaging>pom</packaging>
 
     <parent>
-        <artifactId>parent-boot-2</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-2</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../parent-boot-2</relativePath>
     </parent>
@@ -23,10 +24,10 @@
 
     <properties>
         <rest-assured.version>3.1.0</rest-assured.version>
-        <oauth.version>2.3.3.RELEASE</oauth.version>        
+        <oauth.version>2.3.3.RELEASE</oauth.version>
         <oauth-auto.version>2.1.1.RELEASE</oauth-auto.version>
         <spring-security-kerberos.version>1.0.1.RELEASE</spring-security-kerberos.version>
         <apacheds-jdbm1.version>2.0.0-M2</apacheds-jdbm1.version>
-    </properties>  
-        
+    </properties>
+
 </project>
diff --git a/spring-security-sso/spring-security-sso-auth-server/pom.xml b/spring-security-sso/spring-security-sso-auth-server/pom.xml
index 3c8f04a056..933cb6a2b2 100644
--- a/spring-security-sso/spring-security-sso-auth-server/pom.xml
+++ b/spring-security-sso/spring-security-sso-auth-server/pom.xml
@@ -1,5 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>spring-security-sso-auth-server</artifactId>
     <name>spring-security-sso-auth-server</name>
diff --git a/spring-security-sso/spring-security-sso-kerberos/pom.xml b/spring-security-sso/spring-security-sso-kerberos/pom.xml
index 5fb435a9b9..88b9354538 100644
--- a/spring-security-sso/spring-security-sso-kerberos/pom.xml
+++ b/spring-security-sso/spring-security-sso-kerberos/pom.xml
@@ -91,4 +91,5 @@
             <artifactId>spring-boot-starter-thymeleaf</artifactId>
         </dependency>
     </dependencies>
+
 </project>
\ No newline at end of file
diff --git a/spring-security-sso/spring-security-sso-ui-2/pom.xml b/spring-security-sso/spring-security-sso-ui-2/pom.xml
index a6cf5e5386..10592a5e92 100644
--- a/spring-security-sso/spring-security-sso-ui-2/pom.xml
+++ b/spring-security-sso/spring-security-sso-ui-2/pom.xml
@@ -1,5 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>spring-security-sso-ui-2</artifactId>
     <name>spring-security-sso-ui-2</name>
diff --git a/spring-security-sso/spring-security-sso-ui/pom.xml b/spring-security-sso/spring-security-sso-ui/pom.xml
index 7edcee82c8..2f0ac3a42e 100644
--- a/spring-security-sso/spring-security-sso-ui/pom.xml
+++ b/spring-security-sso/spring-security-sso-ui/pom.xml
@@ -1,5 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>spring-security-sso-ui</artifactId>
     <name>spring-security-sso-ui</name>
@@ -22,13 +23,13 @@
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-security</artifactId>
         </dependency>
-        
+
         <dependency>
             <groupId>org.springframework.security.oauth.boot</groupId>
             <artifactId>spring-security-oauth2-autoconfigure</artifactId>
             <version>${oauth-auto.version}</version>
         </dependency>
-        
+
 
         <dependency>
             <groupId>org.springframework.boot</groupId>
diff --git a/spring-security-stormpath/pom.xml b/spring-security-stormpath/pom.xml
index 6db4b38d80..28e8736ca0 100644
--- a/spring-security-stormpath/pom.xml
+++ b/spring-security-stormpath/pom.xml
@@ -1,13 +1,13 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung</groupId>
     <artifactId>spring-security-stormpath</artifactId>
     <version>1.0-SNAPSHOT</version>
     <name>spring-security-stormpath</name>
     <packaging>war</packaging>
     <url>http://maven.apache.org</url>
-	
+
     <developers>
         <developer>
             <email>abhinabkanrar@gmail.com</email>
@@ -18,8 +18,8 @@
     </developers>
 
     <parent>
-        <artifactId>parent-boot-1</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-1</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../parent-boot-1</relativePath>
     </parent>
@@ -60,7 +60,7 @@
             </plugin>
         </plugins>
     </build>
-	
+
     <properties>
         <stormpath-spring.version>1.5.4</stormpath-spring.version>
     </properties>
diff --git a/spring-security-thymeleaf/pom.xml b/spring-security-thymeleaf/pom.xml
index 732eb1dc1d..e6decbf0e5 100644
--- a/spring-security-thymeleaf/pom.xml
+++ b/spring-security-thymeleaf/pom.xml
@@ -1,8 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung</groupId>
     <artifactId>spring-security-thymeleaf</artifactId>
     <version>0.0.1-SNAPSHOT</version>
     <name>spring-security-thymeleaf</name>
@@ -10,8 +9,8 @@
     <description>Spring Security with Thymeleaf tutorial</description>
 
     <parent>
-        <artifactId>parent-boot-2</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-2</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../parent-boot-2</relativePath>
     </parent>
diff --git a/spring-security-x509/pom.xml b/spring-security-x509/pom.xml
index db7def0c02..5b44a13bf5 100644
--- a/spring-security-x509/pom.xml
+++ b/spring-security-x509/pom.xml
@@ -1,16 +1,15 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://maven.apache.org/POM/4.0.0"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung</groupId>
     <artifactId>spring-security-x509</artifactId>
     <version>0.0.1-SNAPSHOT</version>
-	<name>spring-security-x509</name>
+    <name>spring-security-x509</name>
     <packaging>pom</packaging>
-	
+
     <parent>
-        <artifactId>parent-boot-1</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-1</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../parent-boot-1</relativePath>
     </parent>
diff --git a/spring-security-x509/spring-security-x509-basic-auth/pom.xml b/spring-security-x509/spring-security-x509-basic-auth/pom.xml
index 0bbd5d3d3d..3cff638894 100644
--- a/spring-security-x509/spring-security-x509-basic-auth/pom.xml
+++ b/spring-security-x509/spring-security-x509-basic-auth/pom.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://maven.apache.org/POM/4.0.0"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>spring-security-x509-basic-auth</artifactId>
     <version>0.0.1-SNAPSHOT</version>
diff --git a/spring-security-x509/spring-security-x509-client-auth/pom.xml b/spring-security-x509/spring-security-x509-client-auth/pom.xml
index 3e2e18223a..3a39f6af67 100644
--- a/spring-security-x509/spring-security-x509-client-auth/pom.xml
+++ b/spring-security-x509/spring-security-x509-client-auth/pom.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://maven.apache.org/POM/4.0.0"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>spring-security-x509-client-auth</artifactId>
     <version>0.0.1-SNAPSHOT</version>
@@ -70,4 +70,5 @@
             </build>
         </profile>
     </profiles>
+
 </project>
diff --git a/spring-session/pom.xml b/spring-session/pom.xml
index 639686c8ee..579d2327e8 100644
--- a/spring-session/pom.xml
+++ b/spring-session/pom.xml
@@ -1,5 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <groupId>org.baeldung</groupId>
     <artifactId>spring-session</artifactId>
@@ -8,8 +9,8 @@
     <packaging>pom</packaging>
 
     <parent>
-        <artifactId>parent-boot-1</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-1</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../parent-boot-1</relativePath>
     </parent>
diff --git a/spring-session/spring-session-jdbc/pom.xml b/spring-session/spring-session-jdbc/pom.xml
index 432715bc0e..64cdb4dd09 100644
--- a/spring-session/spring-session-jdbc/pom.xml
+++ b/spring-session/spring-session-jdbc/pom.xml
@@ -3,7 +3,6 @@
          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung</groupId>
     <artifactId>spring-session-jdbc</artifactId>
     <version>0.0.1-SNAPSHOT</version>
     <name>spring-session-jdbc</name>
@@ -11,8 +10,8 @@
     <description>Spring Session with JDBC tutorial</description>
 
     <parent>
-        <artifactId>parent-boot-2</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-2</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../../parent-boot-2</relativePath>
     </parent>
diff --git a/spring-session/spring-session-mongodb/pom.xml b/spring-session/spring-session-mongodb/pom.xml
index b9e06615de..00ffec93c0 100644
--- a/spring-session/spring-session-mongodb/pom.xml
+++ b/spring-session/spring-session-mongodb/pom.xml
@@ -3,7 +3,6 @@
          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung</groupId>
     <artifactId>spring-session-mongodb</artifactId>
     <version>0.0.1-SNAPSHOT</version>
     <name>spring-session-mongodb</name>
@@ -11,8 +10,8 @@
     <description>Spring Session with MongoDB tutorial</description>
 
     <parent>
-        <artifactId>parent-boot-2</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-2</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../../parent-boot-2</relativePath>
     </parent>
@@ -40,7 +39,7 @@
             <artifactId>spring-boot-starter-test</artifactId>
             <scope>test</scope>
         </dependency>
-        
+
         <dependency>
             <groupId>de.flapdoodle.embed</groupId>
             <artifactId>de.flapdoodle.embed.mongo</artifactId>
diff --git a/spring-session/spring-session-redis/pom.xml b/spring-session/spring-session-redis/pom.xml
index 96d90b2776..37402634b0 100644
--- a/spring-session/spring-session-redis/pom.xml
+++ b/spring-session/spring-session-redis/pom.xml
@@ -4,12 +4,12 @@
     <modelVersion>4.0.0</modelVersion>
     <artifactId>spring-session-redis</artifactId>
     <version>1.0.0-SNAPSHOT</version>
+    <name>spring-session-redis</name>
     <packaging>jar</packaging>
-	<name>spring-session-redis</name>
 
     <parent>
-        <artifactId>parent-boot-1</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-1</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../../parent-boot-1</relativePath>
     </parent>
@@ -37,9 +37,9 @@
             <version>${embedded-redis.version}</version>
         </dependency>
     </dependencies>
-    
+
     <properties>
-    	<embedded-redis.version>0.6</embedded-redis.version>
+        <embedded-redis.version>0.6</embedded-redis.version>
     </properties>
 
 </project>
\ No newline at end of file
diff --git a/spring-shell/pom.xml b/spring-shell/pom.xml
index 1b6fe28fdd..be1562b942 100644
--- a/spring-shell/pom.xml
+++ b/spring-shell/pom.xml
@@ -1,3 +1,4 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
@@ -7,8 +8,8 @@
     <packaging>war</packaging>
 
     <parent>
-        <artifactId>parent-boot-2</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-2</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../parent-boot-2</relativePath>
     </parent>
diff --git a/spring-sleuth/pom.xml b/spring-sleuth/pom.xml
index 2387915c79..c37086558d 100644
--- a/spring-sleuth/pom.xml
+++ b/spring-sleuth/pom.xml
@@ -1,31 +1,19 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung</groupId>
     <artifactId>spring-sleuth</artifactId>
     <version>1.0.0-SNAPSHOT</version>
     <name>spring-sleuth</name>
     <packaging>jar</packaging>
 
     <parent>
-        <artifactId>parent-boot-2</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-2</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../parent-boot-2</relativePath>
     </parent>
 
-    <dependencies>
-        <dependency>
-            <groupId>org.springframework.cloud</groupId>
-            <artifactId>spring-cloud-starter-sleuth</artifactId>
-        </dependency>
-        <dependency>
-            <groupId>org.springframework.boot</groupId>
-            <artifactId>spring-boot-starter-web</artifactId>
-        </dependency>
-    </dependencies>
-
     <dependencyManagement>
         <dependencies>
             <dependency>
@@ -38,6 +26,17 @@
         </dependencies>
     </dependencyManagement>
 
+    <dependencies>
+        <dependency>
+            <groupId>org.springframework.cloud</groupId>
+            <artifactId>spring-cloud-starter-sleuth</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-web</artifactId>
+        </dependency>
+    </dependencies>
+
     <properties>
         <spring-cloud-sleuth.version>2.0.2.RELEASE</spring-cloud-sleuth.version>
     </properties>
diff --git a/spring-soap/pom.xml b/spring-soap/pom.xml
index e155a0f6b2..9403b70636 100644
--- a/spring-soap/pom.xml
+++ b/spring-soap/pom.xml
@@ -3,12 +3,12 @@
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>spring-soap</artifactId>
-    <name>spring-soap</name>
     <version>1.0.0</version>
+    <name>spring-soap</name>
 
     <parent>
-        <artifactId>parent-boot-2</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-2</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../parent-boot-2</relativePath>
     </parent>
diff --git a/spring-social-login/pom.xml b/spring-social-login/pom.xml
index 655e885568..9fa839f1c2 100644
--- a/spring-social-login/pom.xml
+++ b/spring-social-login/pom.xml
@@ -1,13 +1,14 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>spring-social-login</artifactId>
     <name>spring-social-login</name>
     <packaging>war</packaging>
 
     <parent>
-        <artifactId>parent-boot-1</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-1</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../parent-boot-1</relativePath>
     </parent>
@@ -76,7 +77,6 @@
 
     </dependencies>
 
-
     <build>
         <finalName>spring-social-login</finalName>
         <resources>
diff --git a/spring-spel/pom.xml b/spring-spel/pom.xml
index aa6eb45158..2109117a86 100644
--- a/spring-spel/pom.xml
+++ b/spring-spel/pom.xml
@@ -1,11 +1,10 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung</groupId>
     <artifactId>spring-spel</artifactId>
     <version>1.0-SNAPSHOT</version>
-	<name>spring-spel</name>
+    <name>spring-spel</name>
 
     <parent>
         <groupId>com.baeldung</groupId>
diff --git a/spring-state-machine/pom.xml b/spring-state-machine/pom.xml
index b911b5b5ee..acb14a7613 100644
--- a/spring-state-machine/pom.xml
+++ b/spring-state-machine/pom.xml
@@ -1,13 +1,13 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>spring-state-machine</artifactId>
-	<name>spring-state-machine</name>
-	
+    <name>spring-state-machine</name>
+
     <parent>
-        <artifactId>parent-modules</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-modules</artifactId>
         <version>1.0.0-SNAPSHOT</version>
     </parent>
 
diff --git a/spring-static-resources/pom.xml b/spring-static-resources/pom.xml
index b8068814ba..662c757f54 100644
--- a/spring-static-resources/pom.xml
+++ b/spring-static-resources/pom.xml
@@ -1,8 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung</groupId>
     <artifactId>spring-static-resources</artifactId>
     <version>0.1.0-SNAPSHOT</version>
     <name>spring-static-resources</name>
@@ -147,14 +146,14 @@
             <artifactId>commons-io</artifactId>
             <version>${commons-io.version}</version>
         </dependency>
-        
+
         <dependency>
             <groupId>org.springframework</groupId>
             <artifactId>spring-test</artifactId>
-             <version>${spring.version}</version>
+            <version>${spring.version}</version>
             <scope>test</scope>
         </dependency>
-        
+
     </dependencies>
 
     <build>
diff --git a/spring-swagger-codegen/pom.xml b/spring-swagger-codegen/pom.xml
index e1bb98360e..dee9415679 100644
--- a/spring-swagger-codegen/pom.xml
+++ b/spring-swagger-codegen/pom.xml
@@ -1,10 +1,11 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>spring-swagger-codegen</artifactId>
     <version>0.0.1-SNAPSHOT</version>
+    <name>spring-swagger-codegen</name>
     <packaging>pom</packaging>
-	<name>spring-swagger-codegen</name>
 
     <parent>
         <groupId>com.baeldung</groupId>
diff --git a/spring-swagger-codegen/spring-swagger-codegen-api-client/pom.xml b/spring-swagger-codegen/spring-swagger-codegen-api-client/pom.xml
index cfbc90155c..b9b97139d6 100644
--- a/spring-swagger-codegen/spring-swagger-codegen-api-client/pom.xml
+++ b/spring-swagger-codegen/spring-swagger-codegen-api-client/pom.xml
@@ -1,11 +1,12 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>spring-swagger-codegen-api-client</artifactId>
     <name>spring-swagger-codegen-api-client</name>
+    <packaging>jar</packaging>
     <url>https://github.com/swagger-api/swagger-codegen</url>
     <description>Swagger Java</description>
-    <packaging>jar</packaging>
 
     <scm>
         <connection>scm:git:git@github.com:swagger-api/swagger-codegen.git</connection>
@@ -37,6 +38,53 @@
         <relativePath>../../spring-swagger-codegen</relativePath>
     </parent>
 
+    <dependencies>
+        <dependency>
+            <groupId>io.swagger</groupId>
+            <artifactId>swagger-annotations</artifactId>
+            <version>${swagger-annotations-version}</version>
+        </dependency>
+
+        <!-- HTTP client: Spring RestTemplate -->
+        <dependency>
+            <groupId>org.springframework</groupId>
+            <artifactId>spring-web</artifactId>
+            <version>${spring-web-version}</version>
+        </dependency>
+
+        <!-- JSON processing: jackson -->
+        <dependency>
+            <groupId>com.fasterxml.jackson.core</groupId>
+            <artifactId>jackson-core</artifactId>
+            <version>${jackson.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>com.fasterxml.jackson.core</groupId>
+            <artifactId>jackson-annotations</artifactId>
+            <version>${jackson.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>com.fasterxml.jackson.core</groupId>
+            <artifactId>jackson-databind</artifactId>
+            <version>${jackson.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>com.fasterxml.jackson.jaxrs</groupId>
+            <artifactId>jackson-jaxrs-json-provider</artifactId>
+            <version>${jackson.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>com.fasterxml.jackson.datatype</groupId>
+            <artifactId>jackson-datatype-joda</artifactId>
+            <version>${jackson.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>joda-time</groupId>
+            <artifactId>joda-time</artifactId>
+            <version>${jodatime-version}</version>
+        </dependency>
+    </dependencies>
+
     <build>
         <plugins>
             <!-- attach test jar -->
@@ -140,53 +188,6 @@
         </profile>
     </profiles>
 
-    <dependencies>
-        <dependency>
-            <groupId>io.swagger</groupId>
-            <artifactId>swagger-annotations</artifactId>
-            <version>${swagger-annotations-version}</version>
-        </dependency>
-
-        <!-- HTTP client: Spring RestTemplate -->
-        <dependency>
-            <groupId>org.springframework</groupId>
-            <artifactId>spring-web</artifactId>
-            <version>${spring-web-version}</version>
-        </dependency>
-
-        <!-- JSON processing: jackson -->
-        <dependency>
-            <groupId>com.fasterxml.jackson.core</groupId>
-            <artifactId>jackson-core</artifactId>
-            <version>${jackson.version}</version>
-        </dependency>
-        <dependency>
-            <groupId>com.fasterxml.jackson.core</groupId>
-            <artifactId>jackson-annotations</artifactId>
-            <version>${jackson.version}</version>
-        </dependency>
-        <dependency>
-            <groupId>com.fasterxml.jackson.core</groupId>
-            <artifactId>jackson-databind</artifactId>
-            <version>${jackson.version}</version>
-        </dependency>
-        <dependency>
-            <groupId>com.fasterxml.jackson.jaxrs</groupId>
-            <artifactId>jackson-jaxrs-json-provider</artifactId>
-            <version>${jackson.version}</version>
-        </dependency>
-        <dependency>
-            <groupId>com.fasterxml.jackson.datatype</groupId>
-            <artifactId>jackson-datatype-joda</artifactId>
-            <version>${jackson.version}</version>
-        </dependency>
-        <dependency>
-            <groupId>joda-time</groupId>
-            <artifactId>joda-time</artifactId>
-            <version>${jodatime-version}</version>
-        </dependency>
-    </dependencies>
-
     <properties>
         <swagger-annotations-version>1.5.15</swagger-annotations-version>
         <spring-web-version>4.3.9.RELEASE</spring-web-version>
@@ -197,4 +198,5 @@
         <maven-javadoc-plugin.version>2.10.4</maven-javadoc-plugin.version>
         <build-helper-maven-plugin.version>1.10</build-helper-maven-plugin.version>
     </properties>
+
 </project>
diff --git a/spring-swagger-codegen/spring-swagger-codegen-app/pom.xml b/spring-swagger-codegen/spring-swagger-codegen-app/pom.xml
index f9410b6865..cb3fe89c8f 100644
--- a/spring-swagger-codegen/spring-swagger-codegen-app/pom.xml
+++ b/spring-swagger-codegen/spring-swagger-codegen-app/pom.xml
@@ -1,9 +1,10 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>spring-swagger-codegen-app</artifactId>
-	<name>spring-swagger-codegen-app</name>
-	
+    <name>spring-swagger-codegen-app</name>
+
     <parent>
         <groupId>com.baeldung</groupId>
         <artifactId>spring-swagger-codegen</artifactId>
@@ -42,6 +43,7 @@
 
     <properties>
         <spring-swagger-codegen-api-client.version>0.0.1-SNAPSHOT</spring-swagger-codegen-api-client.version>
-		<spring.version>1.5.10.RELEASE</spring.version>
+        <spring.version>1.5.10.RELEASE</spring.version>
     </properties>
+
 </project>
diff --git a/spring-thymeleaf-2/pom.xml b/spring-thymeleaf-2/pom.xml
index d53bb8ab1a..24c159dab9 100644
--- a/spring-thymeleaf-2/pom.xml
+++ b/spring-thymeleaf-2/pom.xml
@@ -1,5 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>spring-thymeleaf-2</artifactId>
     <name>spring-thymeleaf-2</name>
@@ -65,4 +66,5 @@
         <maven.compiler.target>1.8</maven.compiler.target>
         <tomcat7-maven-plugin.version>2.2</tomcat7-maven-plugin.version>
     </properties>
+
 </project>
diff --git a/spring-thymeleaf/pom.xml b/spring-thymeleaf/pom.xml
index d260a78d76..c37c66a36d 100644
--- a/spring-thymeleaf/pom.xml
+++ b/spring-thymeleaf/pom.xml
@@ -1,10 +1,10 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung</groupId>
     <artifactId>spring-thymeleaf</artifactId>
     <version>0.1-SNAPSHOT</version>
-	<name>spring-thymeleaf</name>
+    <name>spring-thymeleaf</name>
     <packaging>war</packaging>
 
     <parent>
@@ -62,7 +62,7 @@
             <artifactId>spring-security-config</artifactId>
             <version>${spring-security.version}</version>
         </dependency>
-        
+
         <!-- Thymeleaf -->
         <dependency>
             <groupId>org.thymeleaf</groupId>
diff --git a/spring-vault/pom.xml b/spring-vault/pom.xml
index ccad71c024..40967e2894 100644
--- a/spring-vault/pom.xml
+++ b/spring-vault/pom.xml
@@ -1,47 +1,45 @@
-<?xml version="1.0"?>
-<project
-	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"
-	xmlns="http://maven.apache.org/POM/4.0.0"
-	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
-	<modelVersion>4.0.0</modelVersion>
-	<groupId>com.baeldung</groupId>
-	<artifactId>spring-vault</artifactId>
-	<version>0.0.1-SNAPSHOT</version>
-	<name>spring-vault</name>
-	<packaging>jar</packaging>
-	<description>Spring Vault sample project</description>
+<?xml version="1.0" encoding="UTF-8"?>
+<project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"
+         xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
+    <modelVersion>4.0.0</modelVersion>
+    <artifactId>spring-vault</artifactId>
+    <version>0.0.1-SNAPSHOT</version>
+    <name>spring-vault</name>
+    <packaging>jar</packaging>
+    <description>Spring Vault sample project</description>
 
-	<parent>
-		<artifactId>parent-boot-2</artifactId>
-		<groupId>com.baeldung</groupId>
-		<version>0.0.1-SNAPSHOT</version>
-		<relativePath>../parent-boot-2</relativePath>
-	</parent>
+    <parent>
+        <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-2</artifactId>
+        <version>0.0.1-SNAPSHOT</version>
+        <relativePath>../parent-boot-2</relativePath>
+    </parent>
 
-	<dependencies>
-		<dependency>
-			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-starter</artifactId>
-		</dependency>
-		<dependency>
-			<groupId>org.springframework.vault</groupId>
-			<artifactId>spring-vault-core</artifactId>
-			<version>${spring.vault.core.version}</version>
-		</dependency>
-		<dependency>
-			<groupId>com.fasterxml.jackson.core</groupId>
-			<artifactId>jackson-databind</artifactId>
-		</dependency>
-		<dependency>
-			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-starter-test</artifactId>
-			<scope>test</scope>
-		</dependency>
+    <dependencies>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.vault</groupId>
+            <artifactId>spring-vault-core</artifactId>
+            <version>${spring.vault.core.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>com.fasterxml.jackson.core</groupId>
+            <artifactId>jackson-databind</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-test</artifactId>
+            <scope>test</scope>
+        </dependency>
+    </dependencies>
 
-	</dependencies>
+    <properties>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <spring.vault.core.version>2.1.1.RELEASE</spring.vault.core.version>
+    </properties>
 
-	<properties>
-		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-		<spring.vault.core.version>2.1.1.RELEASE</spring.vault.core.version>
-	</properties>
 </project>
diff --git a/spring-vertx/pom.xml b/spring-vertx/pom.xml
index 1a0e1c0223..ef169c9a27 100644
--- a/spring-vertx/pom.xml
+++ b/spring-vertx/pom.xml
@@ -1,15 +1,15 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>spring-vertx</artifactId>
     <name>spring-vertx</name>
-    <description>A demo project with vertx spring integration</description>
     <packaging>jar</packaging>
+    <description>A demo project with vertx spring integration</description>
 
     <parent>
-        <artifactId>parent-boot-2</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-2</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../parent-boot-2</relativePath>
     </parent>
diff --git a/spring-webflux-amqp/pom.xml b/spring-webflux-amqp/pom.xml
index 88f5eff403..f9b14eea06 100755
--- a/spring-webflux-amqp/pom.xml
+++ b/spring-webflux-amqp/pom.xml
@@ -1,76 +1,76 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
-	<modelVersion>4.0.0</modelVersion>
-	<groupId>org.baeldung.spring</groupId>
-	<artifactId>spring-webflux-amqp</artifactId>
-	<version>1.0.0-SNAPSHOT</version>
-	<name>spring-webflux-amqp</name>
-	<packaging>jar</packaging>
-	<description>Spring WebFlux AMQP Sample</description>
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <groupId>org.baeldung.spring</groupId>
+    <artifactId>spring-webflux-amqp</artifactId>
+    <version>1.0.0-SNAPSHOT</version>
+    <name>spring-webflux-amqp</name>
+    <packaging>jar</packaging>
+    <description>Spring WebFlux AMQP Sample</description>
 
-	<parent>
-		<artifactId>parent-boot-2</artifactId>
-		<groupId>com.baeldung</groupId>
-		<version>0.0.1-SNAPSHOT</version>
-		<relativePath>../parent-boot-2</relativePath>
-	</parent>
+    <parent>
+        <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-2</artifactId>
+        <version>0.0.1-SNAPSHOT</version>
+        <relativePath>../parent-boot-2</relativePath>
+    </parent>
 
-	<dependencyManagement>
-		<dependencies>
-			<dependency>
-				<!-- Import dependency management from Spring Boot -->
-				<groupId>org.springframework.boot</groupId>
-				<artifactId>spring-boot-dependencies</artifactId>
-				<!-- <version>2.0.4.RELEASE</version>  --><!-- works -->
-				<version>2.1.3.RELEASE</version>  <!-- Works with workaround applied -->
-				<type>pom</type>
-				<scope>import</scope>
-			</dependency>
-		</dependencies>
-	</dependencyManagement>
+    <dependencyManagement>
+        <dependencies>
+            <dependency>
+                <!-- Import dependency management from Spring Boot -->
+                <groupId>org.springframework.boot</groupId>
+                <artifactId>spring-boot-dependencies</artifactId>
+                <!-- <version>2.0.4.RELEASE</version>  --><!-- works -->
+                <version>2.1.3.RELEASE</version>  <!-- Works with workaround applied -->
+                <type>pom</type>
+                <scope>import</scope>
+            </dependency>
+        </dependencies>
+    </dependencyManagement>
 
-	<dependencies>
-		<dependency>
-			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-starter-amqp</artifactId>
-		</dependency>
-		<dependency>
-			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-starter-webflux</artifactId>
-		</dependency>
+    <dependencies>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-amqp</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-webflux</artifactId>
+        </dependency>
 
-		<dependency>
-			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-configuration-processor</artifactId>
-			<optional>true</optional>
-		</dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-configuration-processor</artifactId>
+            <optional>true</optional>
+        </dependency>
 
-		<dependency>
-			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-starter-test</artifactId>
-			<scope>test</scope>
-		</dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-test</artifactId>
+            <scope>test</scope>
+        </dependency>
 
-		<dependency>
-			<groupId>io.projectreactor</groupId>
-			<artifactId>reactor-test</artifactId>
-			<scope>test</scope>
-		</dependency>
+        <dependency>
+            <groupId>io.projectreactor</groupId>
+            <artifactId>reactor-test</artifactId>
+            <scope>test</scope>
+        </dependency>
 
-		<dependency>
-			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-starter-integration</artifactId>
-		</dependency>
-	</dependencies>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-integration</artifactId>
+        </dependency>
+    </dependencies>
 
-	<build>
-		<plugins>
-			<plugin>
-				<groupId>org.springframework.boot</groupId>
-				<artifactId>spring-boot-maven-plugin</artifactId>
-			</plugin>
-		</plugins>
-	</build>
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.springframework.boot</groupId>
+                <artifactId>spring-boot-maven-plugin</artifactId>
+            </plugin>
+        </plugins>
+    </build>
 
 </project>
diff --git a/static-analysis/pom.xml b/static-analysis/pom.xml
index 94d68f895b..87e5f55977 100644
--- a/static-analysis/pom.xml
+++ b/static-analysis/pom.xml
@@ -1,11 +1,10 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung</groupId>
     <artifactId>static-analysis</artifactId>
     <version>1.0-SNAPSHOT</version>
-	<name>static-analysis</name>
+    <name>static-analysis</name>
 
     <parent>
         <groupId>com.baeldung</groupId>
diff --git a/stripe/pom.xml b/stripe/pom.xml
index 7aa458bfd5..07d2968f5f 100644
--- a/stripe/pom.xml
+++ b/stripe/pom.xml
@@ -1,17 +1,17 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <groupId>com.baeldung.stripe</groupId>
     <artifactId>stripe</artifactId>
     <version>0.0.1-SNAPSHOT</version>
     <name>stripe</name>
-    <description>Demo project for Stripe API</description>
     <packaging>jar</packaging>
+    <description>Demo project for Stripe API</description>
 
     <parent>
-        <artifactId>parent-boot-1</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-1</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../parent-boot-1</relativePath>
     </parent>
@@ -38,7 +38,7 @@
             <version>${stripe.version}</version>
         </dependency>
     </dependencies>
-    
+
     <properties>
         <stripe.version>4.2.0</stripe.version>
     </properties>
diff --git a/structurizr/pom.xml b/structurizr/pom.xml
index b9f9b68717..f1b4355dcf 100644
--- a/structurizr/pom.xml
+++ b/structurizr/pom.xml
@@ -1,9 +1,9 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>structurizr</artifactId>
-	<name>structurizr</name>
+    <name>structurizr</name>
 
     <parent>
         <groupId>com.baeldung</groupId>
diff --git a/struts-2/pom.xml b/struts-2/pom.xml
index 1f7d6876d5..3211ad7253 100644
--- a/struts-2/pom.xml
+++ b/struts-2/pom.xml
@@ -1,7 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung</groupId>
     <artifactId>struts-2</artifactId>
     <version>0.0.1-SNAPSHOT</version>
     <name>struts-2</name>
@@ -65,7 +65,7 @@
             </plugin>
         </plugins>
     </build>
-    
+
     <properties>
         <struts2.version>2.5.5</struts2.version>
         <struts2-convention-plugin.version>2.5.8</struts2-convention-plugin.version>
diff --git a/tensorflow-java/pom.xml b/tensorflow-java/pom.xml
index 1c34fa465b..379a901925 100644
--- a/tensorflow-java/pom.xml
+++ b/tensorflow-java/pom.xml
@@ -1,51 +1,51 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0"
-	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
-	<modelVersion>4.0.0</modelVersion>
-	<groupId>com.baeldung</groupId>
-	<artifactId>tensorflow-java</artifactId>
-	<version>1.0-SNAPSHOT</version>
-	<packaging>jar</packaging>
-	<name>tensorflow-java</name>
-	<url>http://maven.apache.org</url>
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <artifactId>tensorflow-java</artifactId>
+    <version>1.0-SNAPSHOT</version>
+    <name>tensorflow-java</name>
+    <packaging>jar</packaging>
+    <url>http://maven.apache.org</url>
 
-	<parent>
-		<groupId>com.baeldung</groupId>
-		<artifactId>parent-modules</artifactId>
-		<version>1.0.0-SNAPSHOT</version>
-	</parent>
+    <parent>
+        <groupId>com.baeldung</groupId>
+        <artifactId>parent-modules</artifactId>
+        <version>1.0.0-SNAPSHOT</version>
+    </parent>
 
-	<dependencies>
-		<dependency>
-			<groupId>org.tensorflow</groupId>
-			<artifactId>tensorflow</artifactId>
-			<version>${tensorflow.version}</version>
-		</dependency>
-		<dependency>
-			<groupId>org.junit.jupiter</groupId>
-			<artifactId>junit-jupiter-api</artifactId>
-			<version>${junit-jupiter.version}</version>
-			<scope>test</scope>
-		</dependency>
-		<dependency>
-			<groupId>org.junit.jupiter</groupId>
-			<artifactId>junit-jupiter-engine</artifactId>
-			<version>${junit-jupiter.version}</version>
-			<scope>test</scope>
-		</dependency>
-	</dependencies>
+    <dependencies>
+        <dependency>
+            <groupId>org.tensorflow</groupId>
+            <artifactId>tensorflow</artifactId>
+            <version>${tensorflow.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.junit.jupiter</groupId>
+            <artifactId>junit-jupiter-api</artifactId>
+            <version>${junit-jupiter.version}</version>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.junit.jupiter</groupId>
+            <artifactId>junit-jupiter-engine</artifactId>
+            <version>${junit-jupiter.version}</version>
+            <scope>test</scope>
+        </dependency>
+    </dependencies>
 
-	<build>
-		<plugins>
-			<plugin>
-				<groupId>org.springframework.boot</groupId>
-				<artifactId>spring-boot-maven-plugin</artifactId>
-			</plugin>
-		</plugins>
-	</build>
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.springframework.boot</groupId>
+                <artifactId>spring-boot-maven-plugin</artifactId>
+            </plugin>
+        </plugins>
+    </build>
+
+    <properties>
+        <tensorflow.version>1.12.0</tensorflow.version>
+    </properties>
 
-	<properties>
-		<tensorflow.version>1.12.0</tensorflow.version>
-	</properties>
 </project>
\ No newline at end of file
diff --git a/testing-modules/assertion-libraries/pom.xml b/testing-modules/assertion-libraries/pom.xml
index 9d60d42533..c8ab512e4b 100644
--- a/testing-modules/assertion-libraries/pom.xml
+++ b/testing-modules/assertion-libraries/pom.xml
@@ -1,7 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung</groupId>
     <artifactId>assertion-libraries</artifactId>
     <version>0.1-SNAPSHOT</version>
     <name>assertion-libraries</name>
diff --git a/testing-modules/easy-random/pom.xml b/testing-modules/easy-random/pom.xml
index d80927c3e8..1a1f3f743d 100644
--- a/testing-modules/easy-random/pom.xml
+++ b/testing-modules/easy-random/pom.xml
@@ -1,14 +1,14 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0"
-    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>easy-random</artifactId>
     <name>easy-random</name>
 
     <parent>
-        <artifactId>parent-modules</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-modules</artifactId>
         <version>1.0.0-SNAPSHOT</version>
         <relativePath>../../</relativePath>
     </parent>
diff --git a/testing-modules/easymock/pom.xml b/testing-modules/easymock/pom.xml
index ed9a077f67..4146ae6df4 100644
--- a/testing-modules/easymock/pom.xml
+++ b/testing-modules/easymock/pom.xml
@@ -1,8 +1,7 @@
-<?xml version="1.0"?>
-<project
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"
-    xmlns="http://maven.apache.org/POM/4.0.0"
-    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
+<?xml version="1.0" encoding="UTF-8"?>
+<project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"
+         xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>easymock</artifactId>
     <name>easymock</name>
@@ -27,4 +26,5 @@
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <easymock.version>4.0.2</easymock.version>
     </properties>
+
 </project>
diff --git a/testing-modules/gatling/pom.xml b/testing-modules/gatling/pom.xml
index d105cc8b3e..99eaaac044 100644
--- a/testing-modules/gatling/pom.xml
+++ b/testing-modules/gatling/pom.xml
@@ -15,7 +15,6 @@
         <relativePath>../../</relativePath>
     </parent>
 
-
     <dependencyManagement>
         <dependencies>
             <dependency>
@@ -106,7 +105,6 @@
         </plugins>
     </build>
 
-
     <properties>
         <maven.compiler.source>1.8</maven.compiler.source>
         <maven.compiler.target>1.8</maven.compiler.target>
diff --git a/testing-modules/groovy-spock/pom.xml b/testing-modules/groovy-spock/pom.xml
index 35d8f5034f..fa2c98a884 100644
--- a/testing-modules/groovy-spock/pom.xml
+++ b/testing-modules/groovy-spock/pom.xml
@@ -1,11 +1,11 @@
 <?xml version="1.0"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <groupId>org.spockframework</groupId>
     <artifactId>groovy-spock</artifactId>
     <version>1.0-SNAPSHOT</version>
-	<name>groovy-spock</name>
+    <name>groovy-spock</name>
     <packaging>jar</packaging>
 
     <parent>
diff --git a/testing-modules/hamcrest/pom.xml b/testing-modules/hamcrest/pom.xml
index 2136702b3a..cfd5bf5fac 100644
--- a/testing-modules/hamcrest/pom.xml
+++ b/testing-modules/hamcrest/pom.xml
@@ -1,7 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
     xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung</groupId>
     <artifactId>hamcrest</artifactId>
     <version>0.0.1-SNAPSHOT</version>
     <name>hamcrest</name>
@@ -26,4 +26,5 @@
     <properties>
         <hamcrest.version>2.0.0.0</hamcrest.version>
     </properties>
+
 </project>
diff --git a/testing-modules/junit-5-advanced/pom.xml b/testing-modules/junit-5-advanced/pom.xml
index bc879ebfc3..4756223c3d 100644
--- a/testing-modules/junit-5-advanced/pom.xml
+++ b/testing-modules/junit-5-advanced/pom.xml
@@ -1,52 +1,53 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0"
-	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
-	<modelVersion>4.0.0</modelVersion>
-	<artifactId>junit-5-advanced</artifactId>
-	<version>1.0-SNAPSHOT</version>
-	<name>junit-5-advanced</name>
-	<description>Advanced JUnit 5 Topics</description>
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <artifactId>junit-5-advanced</artifactId>
+    <version>1.0-SNAPSHOT</version>
+    <name>junit-5-advanced</name>
+    <description>Advanced JUnit 5 Topics</description>
 
-	<parent>
-		<groupId>com.baeldung</groupId>
-		<artifactId>parent-modules</artifactId>
-		<version>1.0.0-SNAPSHOT</version>
-		<relativePath>../../</relativePath>
-	</parent>
+    <parent>
+        <groupId>com.baeldung</groupId>
+        <artifactId>parent-modules</artifactId>
+        <version>1.0.0-SNAPSHOT</version>
+        <relativePath>../../</relativePath>
+    </parent>
 
-	<dependencies>
-		<dependency>
-			<groupId>org.junit.jupiter</groupId>
-			<artifactId>junit-jupiter</artifactId>
-			<version>${junit-jupiter.version}</version>
-			<scope>test</scope>
-		</dependency>
-		<dependency>
-			<groupId>org.junit.jupiter</groupId>
-			<artifactId>junit-jupiter-engine</artifactId>
-			<version>${junit-jupiter.version}</version>
-		</dependency>
-		<dependency>
-			<groupId>org.junit.vintage</groupId>
-			<artifactId>junit-vintage-engine</artifactId>
-			<version>${junit.vintage.version}</version>
-			<scope>test</scope>
-		</dependency>
-	</dependencies>
+    <dependencies>
+        <dependency>
+            <groupId>org.junit.jupiter</groupId>
+            <artifactId>junit-jupiter</artifactId>
+            <version>${junit-jupiter.version}</version>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.junit.jupiter</groupId>
+            <artifactId>junit-jupiter-engine</artifactId>
+            <version>${junit-jupiter.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.junit.vintage</groupId>
+            <artifactId>junit-vintage-engine</artifactId>
+            <version>${junit.vintage.version}</version>
+            <scope>test</scope>
+        </dependency>
+    </dependencies>
 
-	<build>
-		<plugins>
-			<plugin>
-				<artifactId>maven-surefire-plugin</artifactId>
-				<version>${maven-surefire-plugin.version}</version>
-			</plugin>
-		</plugins>
-	</build>
-	<properties>
-		<junit-jupiter.version>5.4.2</junit-jupiter.version>
-		<maven-surefire-plugin.version>2.21.0</maven-surefire-plugin.version>
-		<junit.vintage.version>5.4.2</junit.vintage.version>
-	</properties>
+    <build>
+        <plugins>
+            <plugin>
+                <artifactId>maven-surefire-plugin</artifactId>
+                <version>${maven-surefire-plugin.version}</version>
+            </plugin>
+        </plugins>
+    </build>
+
+    <properties>
+        <junit-jupiter.version>5.4.2</junit-jupiter.version>
+        <maven-surefire-plugin.version>2.21.0</maven-surefire-plugin.version>
+        <junit.vintage.version>5.4.2</junit.vintage.version>
+    </properties>
 
 </project>
diff --git a/testing-modules/junit-5-basics/pom.xml b/testing-modules/junit-5-basics/pom.xml
index 68a0ceeee7..b9c9635dc4 100644
--- a/testing-modules/junit-5-basics/pom.xml
+++ b/testing-modules/junit-5-basics/pom.xml
@@ -85,7 +85,6 @@
                 <directory>src/main/resources</directory>
                 <filtering>true</filtering>
             </resource>
-
         </resources>
     </build>
 
@@ -100,7 +99,7 @@
                     <plugin>
                         <artifactId>maven-surefire-plugin</artifactId>
                         <version>${maven-surefire-plugin.version}</version>
-                        
+
                         <configuration>
                             <excludes>
                                 **/*IntegrationTest.java
@@ -146,9 +145,8 @@
                 </plugins>
             </build>
         </profile>
-
     </profiles>
-    
+
     <properties>
         <junit.vintage.version>5.4.2</junit.vintage.version>
         <junit-platform.version>1.2.0</junit-platform.version>
diff --git a/testing-modules/junit-5/pom.xml b/testing-modules/junit-5/pom.xml
index a27e4da61b..33fd0bbce8 100644
--- a/testing-modules/junit-5/pom.xml
+++ b/testing-modules/junit-5/pom.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <!-- NOT NEEDED - JSP <groupId>com.baeldung</groupId> -->
     <artifactId>junit-5</artifactId>
@@ -30,20 +30,20 @@
             <groupId>org.junit.jupiter</groupId>
             <artifactId>junit-jupiter-api</artifactId>
             <version>${junit.jupiter.version}</version>
-        </dependency>    
+        </dependency>
         <dependency>
             <groupId>org.junit.platform</groupId>
             <artifactId>junit-platform-runner</artifactId>
             <version>${junit.platform.version}</version>
             <scope>test</scope>
         </dependency>
-         <dependency>
+        <dependency>
             <groupId>org.junit.vintage</groupId>
             <artifactId>junit-vintage-engine</artifactId>
             <version>${junit.vintage.version}</version>
             <scope>test</scope>
         </dependency>
-         <dependency>
+        <dependency>
             <groupId>org.junit.jupiter</groupId>
             <artifactId>junit-jupiter-migrationsupport</artifactId>
             <version>${junit.vintage.version}</version>
@@ -131,6 +131,7 @@
             </plugin>
         </plugins>
     </build>
+
     <properties>
         <junit.jupiter.version>5.4.2</junit.jupiter.version>
         <mockito.junit.jupiter.version>2.23.0</mockito.junit.jupiter.version>
diff --git a/testing-modules/junit5-annotations/pom.xml b/testing-modules/junit5-annotations/pom.xml
index c8abfe909d..080844c30b 100644
--- a/testing-modules/junit5-annotations/pom.xml
+++ b/testing-modules/junit5-annotations/pom.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>junit5-annotations</artifactId>
     <version>1.0-SNAPSHOT</version>
diff --git a/testing-modules/junit5-migration/pom.xml b/testing-modules/junit5-migration/pom.xml
index 536953afc8..3b2663d81d 100644
--- a/testing-modules/junit5-migration/pom.xml
+++ b/testing-modules/junit5-migration/pom.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>junit5-migration</artifactId>
     <version>1.0-SNAPSHOT</version>
diff --git a/testing-modules/load-testing-comparison/pom.xml b/testing-modules/load-testing-comparison/pom.xml
index 8441eb3db7..1143ecb9ac 100644
--- a/testing-modules/load-testing-comparison/pom.xml
+++ b/testing-modules/load-testing-comparison/pom.xml
@@ -4,11 +4,11 @@
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>load-testing-comparison</artifactId>
-	<name>load-testing-comparison</name>
-	
+    <name>load-testing-comparison</name>
+
     <parent>
-        <artifactId>parent-boot-2</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-2</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../../parent-boot-2</relativePath>
     </parent>
@@ -65,13 +65,13 @@
     <build>
         <!--<testSourceDirectory>src/test/scala</testSourceDirectory>-->
         <!--<pluginManagement>-->
-            <!--<plugins>-->
-                <!--<plugin>-->
-                    <!--<groupId>net.alchim31.maven</groupId>-->
-                    <!--<artifactId>scala-maven-plugin</artifactId>-->
-                    <!--<version>${scala-maven-plugin.version}</version>-->
-                <!--</plugin>-->
-            <!--</plugins>-->
+        <!--<plugins>-->
+        <!--<plugin>-->
+        <!--<groupId>net.alchim31.maven</groupId>-->
+        <!--<artifactId>scala-maven-plugin</artifactId>-->
+        <!--<version>${scala-maven-plugin.version}</version>-->
+        <!--</plugin>-->
+        <!--</plugins>-->
         <!--</pluginManagement>-->
         <plugins>
             <plugin>
@@ -80,40 +80,40 @@
                 <version>2.0.5.RELEASE</version>
             </plugin>
             <!--<plugin>-->
-                <!--<groupId>net.alchim31.maven</groupId>-->
-                <!--<artifactId>scala-maven-plugin</artifactId>-->
-                <!--<executions>-->
-                    <!--<execution>-->
-                        <!--<goals>-->
-                            <!--<goal>testCompile</goal>-->
-                        <!--</goals>-->
-                        <!--<configuration>-->
-                            <!--<args>-->
-                                <!--&lt;!&ndash;<arg>-Ybackend:GenBCode</arg> &ndash;&gt;-->
-                                <!--<arg>-Ydelambdafy:method</arg>-->
-                                <!--<arg>-target:jvm-1.8</arg>-->
-                                <!--<arg>-deprecation</arg>-->
-                                <!--<arg>-feature</arg>-->
-                                <!--<arg>-unchecked</arg>-->
-                                <!--<arg>-language:implicitConversions</arg>-->
-                                <!--<arg>-language:postfixOps</arg>-->
-                            <!--</args>-->
-                        <!--</configuration>-->
-                    <!--</execution>-->
-                <!--</executions>-->
+            <!--<groupId>net.alchim31.maven</groupId>-->
+            <!--<artifactId>scala-maven-plugin</artifactId>-->
+            <!--<executions>-->
+            <!--<execution>-->
+            <!--<goals>-->
+            <!--<goal>testCompile</goal>-->
+            <!--</goals>-->
+            <!--<configuration>-->
+            <!--<args>-->
+            <!--&lt;!&ndash;<arg>-Ybackend:GenBCode</arg> &ndash;&gt;-->
+            <!--<arg>-Ydelambdafy:method</arg>-->
+            <!--<arg>-target:jvm-1.8</arg>-->
+            <!--<arg>-deprecation</arg>-->
+            <!--<arg>-feature</arg>-->
+            <!--<arg>-unchecked</arg>-->
+            <!--<arg>-language:implicitConversions</arg>-->
+            <!--<arg>-language:postfixOps</arg>-->
+            <!--</args>-->
+            <!--</configuration>-->
+            <!--</execution>-->
+            <!--</executions>-->
             <!--</plugin>-->
             <!--<plugin>-->
-                <!--<groupId>io.gatling</groupId>-->
-                <!--<artifactId>gatling-maven-plugin</artifactId>-->
-                <!--<version>${gatling-maven-plugin.version}</version>-->
-                <!--<executions>-->
-                    <!--<execution>-->
-                        <!--<phase>test</phase>-->
-                        <!--<goals>-->
-                            <!--<goal>execute</goal>-->
-                        <!--</goals>-->
-                    <!--</execution>-->
-                <!--</executions>-->
+            <!--<groupId>io.gatling</groupId>-->
+            <!--<artifactId>gatling-maven-plugin</artifactId>-->
+            <!--<version>${gatling-maven-plugin.version}</version>-->
+            <!--<executions>-->
+            <!--<execution>-->
+            <!--<phase>test</phase>-->
+            <!--<goals>-->
+            <!--<goal>execute</goal>-->
+            <!--</goals>-->
+            <!--</execution>-->
+            <!--</executions>-->
             <!--</plugin>-->
         </plugins>
     </build>
@@ -128,5 +128,5 @@
         <gatling-maven-plugin.version>2.2.1</gatling-maven-plugin.version> <!--2.2.1 --> <!--2.2.4 -->
         <jmeter.version>5.0</jmeter.version>
     </properties>
-    
+
 </project>
diff --git a/testing-modules/mockito-2/pom.xml b/testing-modules/mockito-2/pom.xml
index e319dd9edd..76608a3039 100644
--- a/testing-modules/mockito-2/pom.xml
+++ b/testing-modules/mockito-2/pom.xml
@@ -1,7 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung</groupId>
     <artifactId>mockito-2</artifactId>
     <version>0.0.1-SNAPSHOT</version>
     <name>mockito-2</name>
@@ -17,4 +17,5 @@
     <properties>
         <mockito.version>2.21.0</mockito.version>
     </properties>
+
 </project>
diff --git a/testing-modules/mockito/pom.xml b/testing-modules/mockito/pom.xml
index e0f32d88bf..0fb11d23ab 100644
--- a/testing-modules/mockito/pom.xml
+++ b/testing-modules/mockito/pom.xml
@@ -1,7 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung</groupId>
     <artifactId>mockito</artifactId>
     <version>0.1-SNAPSHOT</version>
     <name>mockito</name>
@@ -14,7 +14,6 @@
     </parent>
 
     <dependencies>
-    
         <dependency>
             <groupId>org.springframework</groupId>
             <artifactId>spring-core</artifactId>
@@ -83,9 +82,9 @@
     </build>
 
     <properties>
-    	<spring-boot.version>2.0.4.RELEASE</spring-boot.version>
-    	<spring-framework.version>5.0.8.RELEASE</spring-framework.version>
-    	<spring-data.version>2.0.9.RELEASE</spring-data.version>
+        <spring-boot.version>2.0.4.RELEASE</spring-boot.version>
+        <spring-framework.version>5.0.8.RELEASE</spring-framework.version>
+        <spring-data.version>2.0.9.RELEASE</spring-data.version>
         <!-- util -->
         <guava.version>19.0</guava.version>
 
diff --git a/testing-modules/mocks/pom.xml b/testing-modules/mocks/pom.xml
index cbda386af8..abaf313dc5 100644
--- a/testing-modules/mocks/pom.xml
+++ b/testing-modules/mocks/pom.xml
@@ -1,3 +1,4 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
diff --git a/testing-modules/mockserver/pom.xml b/testing-modules/mockserver/pom.xml
index 1db409bd7c..6d553f4b90 100644
--- a/testing-modules/mockserver/pom.xml
+++ b/testing-modules/mockserver/pom.xml
@@ -1,12 +1,11 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung</groupId>
     <artifactId>mockserver</artifactId>
     <version>1.0.0-SNAPSHOT</version>
-	<name>mockserver</name>
-	
+    <name>mockserver</name>
+
     <parent>
         <groupId>com.baeldung</groupId>
         <artifactId>parent-modules</artifactId>
diff --git a/testing-modules/parallel-tests-junit/math-test-functions/pom.xml b/testing-modules/parallel-tests-junit/math-test-functions/pom.xml
index cc9f27de05..ba645d00ff 100644
--- a/testing-modules/parallel-tests-junit/math-test-functions/pom.xml
+++ b/testing-modules/parallel-tests-junit/math-test-functions/pom.xml
@@ -1,52 +1,52 @@
-<?xml version="1.0"?>
-<project
-	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"
-	xmlns="http://maven.apache.org/POM/4.0.0"
-	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
-	<modelVersion>4.0.0</modelVersion>
-	<artifactId>math-test-functions</artifactId>
-	<name>math-test-functions</name>
-	<url>http://maven.apache.org</url>
+<?xml version="1.0" encoding="UTF-8"?>
+<project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"
+         xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
+    <modelVersion>4.0.0</modelVersion>
+    <artifactId>math-test-functions</artifactId>
+    <name>math-test-functions</name>
+    <url>http://maven.apache.org</url>
 
-	<parent>
-		<groupId>com.baeldung</groupId>
-		<artifactId>parallel-tests-junit</artifactId>
-		<version>0.0.1-SNAPSHOT</version>
-	</parent>
+    <parent>
+        <groupId>com.baeldung</groupId>
+        <artifactId>parallel-tests-junit</artifactId>
+        <version>0.0.1-SNAPSHOT</version>
+    </parent>
 
-	<dependencies>
-		<dependency>
-			<groupId>junit</groupId>
-			<artifactId>junit</artifactId>
-			<version>${junit.version}</version>
-			<scope>test</scope>
-		</dependency>
-	</dependencies>
+    <dependencies>
+        <dependency>
+            <groupId>junit</groupId>
+            <artifactId>junit</artifactId>
+            <version>${junit.version}</version>
+            <scope>test</scope>
+        </dependency>
+    </dependencies>
 
-	<build>
-		<plugins>
-			<plugin>
-				<groupId>org.apache.maven.plugins</groupId>
-				<artifactId>maven-surefire-plugin</artifactId>
-				<version>2.22.0</version>
-				<configuration>
-					<parallel>all</parallel>
-					<threadCount>10</threadCount>
-					<threadCountSuites>2</threadCountSuites>
-					<threadCountClasses>2</threadCountClasses>
-					<threadCountMethods>6</threadCountMethods>
-					<parallelTestTimeoutInSeconds>3.5</parallelTestTimeoutInSeconds>
-					<parallelTestTimeoutForcedInSeconds>5</parallelTestTimeoutForcedInSeconds>
-					<perCoreThreadCount>true</perCoreThreadCount>
-					<includes>
-						<include>FunctionTestSuite.class</include>
-					</includes>
-				</configuration>
-			</plugin>
-		</plugins>
-	</build>
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-surefire-plugin</artifactId>
+                <version>2.22.0</version>
+                <configuration>
+                    <parallel>all</parallel>
+                    <threadCount>10</threadCount>
+                    <threadCountSuites>2</threadCountSuites>
+                    <threadCountClasses>2</threadCountClasses>
+                    <threadCountMethods>6</threadCountMethods>
+                    <parallelTestTimeoutInSeconds>3.5</parallelTestTimeoutInSeconds>
+                    <parallelTestTimeoutForcedInSeconds>5</parallelTestTimeoutForcedInSeconds>
+                    <perCoreThreadCount>true</perCoreThreadCount>
+                    <includes>
+                        <include>FunctionTestSuite.class</include>
+                    </includes>
+                </configuration>
+            </plugin>
+        </plugins>
+    </build>
+
+    <properties>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+    </properties>
 
-	<properties>
-		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-	</properties>
 </project>
diff --git a/testing-modules/parallel-tests-junit/pom.xml b/testing-modules/parallel-tests-junit/pom.xml
index 993974046c..f9c47c827c 100644
--- a/testing-modules/parallel-tests-junit/pom.xml
+++ b/testing-modules/parallel-tests-junit/pom.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung</groupId>
     <artifactId>parallel-tests-junit</artifactId>
     <version>0.0.1-SNAPSHOT</version>
     <name>parallel-tests-junit</name>
@@ -13,7 +13,7 @@
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../../parent-java</relativePath>
     </parent>
-    
+
     <modules>
         <module>math-test-functions</module>
         <module>string-test-functions</module>
diff --git a/testing-modules/parallel-tests-junit/string-test-functions/pom.xml b/testing-modules/parallel-tests-junit/string-test-functions/pom.xml
index b0c0ed29fc..984dd64ce4 100644
--- a/testing-modules/parallel-tests-junit/string-test-functions/pom.xml
+++ b/testing-modules/parallel-tests-junit/string-test-functions/pom.xml
@@ -1,44 +1,44 @@
-<?xml version="1.0"?>
-<project
-	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"
-	xmlns="http://maven.apache.org/POM/4.0.0"
-	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
-	<modelVersion>4.0.0</modelVersion>
-	<artifactId>string-test-functions</artifactId>
-	<name>string-test-functions</name>
-	<url>http://maven.apache.org</url>
+<?xml version="1.0" encoding="UTF-8"?>
+<project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"
+         xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
+    <modelVersion>4.0.0</modelVersion>
+    <artifactId>string-test-functions</artifactId>
+    <name>string-test-functions</name>
+    <url>http://maven.apache.org</url>
 
-	<parent>
-		<groupId>com.baeldung</groupId>
-		<artifactId>parallel-tests-junit</artifactId>
-		<version>0.0.1-SNAPSHOT</version>
-	</parent>
+    <parent>
+        <groupId>com.baeldung</groupId>
+        <artifactId>parallel-tests-junit</artifactId>
+        <version>0.0.1-SNAPSHOT</version>
+    </parent>
 
-	<dependencies>
-		<dependency>
-			<groupId>junit</groupId>
-			<artifactId>junit</artifactId>
-			<version>${junit.version}</version>
-			<scope>test</scope>
-		</dependency>
-	</dependencies>
+    <dependencies>
+        <dependency>
+            <groupId>junit</groupId>
+            <artifactId>junit</artifactId>
+            <version>${junit.version}</version>
+            <scope>test</scope>
+        </dependency>
+    </dependencies>
 
-	<build>
-		<plugins>
-			<plugin>
-				<groupId>org.apache.maven.plugins</groupId>
-				<artifactId>maven-surefire-plugin</artifactId>
-				<version>2.22.0</version>
-				<configuration>
-					<parallel>all</parallel>
-					<useUnlimitedThreads>true</useUnlimitedThreads>
-					<threadCountMethods>2</threadCountMethods>
-				</configuration>
-			</plugin>
-		</plugins>
-	</build>
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-surefire-plugin</artifactId>
+                <version>2.22.0</version>
+                <configuration>
+                    <parallel>all</parallel>
+                    <useUnlimitedThreads>true</useUnlimitedThreads>
+                    <threadCountMethods>2</threadCountMethods>
+                </configuration>
+            </plugin>
+        </plugins>
+    </build>
+
+    <properties>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+    </properties>
 
-	<properties>
-		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-	</properties>
 </project>
diff --git a/testing-modules/pom.xml b/testing-modules/pom.xml
index aad709cfe9..f4a8368581 100644
--- a/testing-modules/pom.xml
+++ b/testing-modules/pom.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://maven.apache.org/POM/4.0.0"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>testing-modules</artifactId>
     <name>testing-modules</name>
@@ -41,4 +41,5 @@
         <module>junit-4</module>
         <module>testing-libraries</module>
     </modules>
+
 </project>
diff --git a/testing-modules/rest-assured/pom.xml b/testing-modules/rest-assured/pom.xml
index 75f33c26f1..74935bcf6f 100644
--- a/testing-modules/rest-assured/pom.xml
+++ b/testing-modules/rest-assured/pom.xml
@@ -1,7 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung</groupId>
     <artifactId>rest-assured</artifactId>
     <version>1.0</version>
     <name>rest-assured</name>
@@ -213,7 +213,7 @@
 
         <rest-assured.version>3.0.1</rest-assured.version>
         <rest-assured-json-schema-validator.version>3.0.1</rest-assured-json-schema-validator.version>
-        
+
         <scribejava.version>2.5.3</scribejava.version>
     </properties>
 
diff --git a/testing-modules/rest-testing/pom.xml b/testing-modules/rest-testing/pom.xml
index a1995ce9ff..1e8a27afa5 100644
--- a/testing-modules/rest-testing/pom.xml
+++ b/testing-modules/rest-testing/pom.xml
@@ -1,7 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung</groupId>
     <artifactId>rest-testing</artifactId>
     <version>0.1-SNAPSHOT</version>
     <name>rest-testing</name>
@@ -105,9 +105,9 @@
                 <filtering>true</filtering>
             </resource>
         </resources>
-        
+
         <plugins>
-             <plugin>
+            <plugin>
                 <artifactId>maven-failsafe-plugin</artifactId>
                 <version>${maven-failsafe-plugin.version}</version>
                 <configuration>
@@ -122,27 +122,27 @@
                         </goals>
                     </execution>
                 </executions>
-            </plugin> 
+            </plugin>
             <plugin>
-              <groupId>com.github.temyers</groupId>
-              <artifactId>cucumber-jvm-parallel-plugin</artifactId>
-              <version>5.0.0</version>
-              <executions>
-                <execution>
-                  <id>generateRunners</id>
-                  <phase>generate-test-sources</phase>
-                  <goals>
-                    <goal>generateRunners</goal>
-                  </goals>
-                  <configuration>
-                    <glue>
-                      <package>com.baeldung.rest.cucumber</package>
-                    </glue>
-                    <featuresDirectory>src/test/resources/Feature/</featuresDirectory>
-                    <parallelScheme>SCENARIO</parallelScheme>
-                  </configuration>
-                </execution>
-              </executions>
+                <groupId>com.github.temyers</groupId>
+                <artifactId>cucumber-jvm-parallel-plugin</artifactId>
+                <version>5.0.0</version>
+                <executions>
+                    <execution>
+                        <id>generateRunners</id>
+                        <phase>generate-test-sources</phase>
+                        <goals>
+                            <goal>generateRunners</goal>
+                        </goals>
+                        <configuration>
+                            <glue>
+                                <package>com.baeldung.rest.cucumber</package>
+                            </glue>
+                            <featuresDirectory>src/test/resources/Feature/</featuresDirectory>
+                            <parallelScheme>SCENARIO</parallelScheme>
+                        </configuration>
+                    </execution>
+                </executions>
             </plugin>
         </plugins>
 
diff --git a/testing-modules/selenium-junit-testng/pom.xml b/testing-modules/selenium-junit-testng/pom.xml
index ae15fc97c0..0616cdaa29 100644
--- a/testing-modules/selenium-junit-testng/pom.xml
+++ b/testing-modules/selenium-junit-testng/pom.xml
@@ -1,11 +1,11 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung</groupId>
     <artifactId>selenium-junit-testng</artifactId>
     <version>0.0.1-SNAPSHOT</version>
-	<name>selenium-junit-testng</name>
-	
+    <name>selenium-junit-testng</name>
+
     <parent>
         <groupId>com.baeldung</groupId>
         <artifactId>parent-modules</artifactId>
@@ -45,7 +45,7 @@
     <build>
         <sourceDirectory>src</sourceDirectory>
     </build>
-    
+
     <profiles>
         <profile>
             <id>live</id>
@@ -70,4 +70,5 @@
         <testng.version>6.10</testng.version>
         <selenium-java.version>3.4.0</selenium-java.version>
     </properties>
+
 </project>
\ No newline at end of file
diff --git a/testing-modules/spring-testing/pom.xml b/testing-modules/spring-testing/pom.xml
index 15431cfb77..22f5f68240 100644
--- a/testing-modules/spring-testing/pom.xml
+++ b/testing-modules/spring-testing/pom.xml
@@ -1,6 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0"
-    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <groupId>org.baeldung</groupId>
     <artifactId>spring-testing</artifactId>
@@ -15,7 +16,6 @@
     </parent>
 
     <dependencies>
-
         <dependency>
             <groupId>org.hamcrest</groupId>
             <artifactId>java-hamcrest</artifactId>
@@ -110,7 +110,6 @@
                 <filtering>true</filtering>
             </resource>
         </resources>
-
     </build>
 
     <properties>
diff --git a/testing-modules/test-containers/pom.xml b/testing-modules/test-containers/pom.xml
index bd87cb5b22..e83d3aff32 100644
--- a/testing-modules/test-containers/pom.xml
+++ b/testing-modules/test-containers/pom.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
 
     <!-- NOT NEEDED - JSP <groupId>com.baeldung</groupId> -->
@@ -28,7 +28,7 @@
             <artifactId>junit-platform-commons</artifactId>
             <version>${junit.platform.version}</version>
             <scope>test</scope>
-        </dependency>        
+        </dependency>
         <dependency>
             <groupId>org.junit.vintage</groupId>
             <artifactId>junit-vintage-engine</artifactId>
@@ -47,12 +47,12 @@
         </dependency>
         <dependency>
             <groupId>org.testcontainers</groupId>
-            <artifactId>postgresql </artifactId>
+            <artifactId>postgresql</artifactId>
             <version>${testcontainers.version}</version>
         </dependency>
         <dependency>
             <groupId>org.testcontainers</groupId>
-            <artifactId>selenium </artifactId>
+            <artifactId>selenium</artifactId>
             <version>${testcontainers.version}</version>
         </dependency>
         <dependency>
@@ -69,7 +69,7 @@
             <groupId>org.seleniumhq.selenium</groupId>
             <artifactId>selenium-chrome-driver</artifactId>
             <version>${selenium-remote-driver.version}</version>
-        </dependency>        
+        </dependency>
     </dependencies>
 
     <build>
diff --git a/testing-modules/testing-libraries/pom.xml b/testing-modules/testing-libraries/pom.xml
index 844fcb3e53..53b58cee17 100644
--- a/testing-modules/testing-libraries/pom.xml
+++ b/testing-modules/testing-libraries/pom.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://maven.apache.org/POM/4.0.0"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>testing-libraries</artifactId>
     <name>testing-libraries</name>
@@ -29,7 +29,7 @@
             <version>${cucumber.version}</version>
             <scope>test</scope>
         </dependency>
-        
+
         <dependency>
             <groupId>io.cucumber</groupId>
             <artifactId>cucumber-java8</artifactId>
@@ -92,5 +92,4 @@
         <checkstyle-maven-plugin.version>3.0.0</checkstyle-maven-plugin.version>
     </properties>
 
-
 </project>
diff --git a/testing-modules/testng/pom.xml b/testing-modules/testng/pom.xml
index 5d0c9f126b..601b152144 100644
--- a/testing-modules/testng/pom.xml
+++ b/testing-modules/testng/pom.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>testng</artifactId>
     <version>0.1.0-SNAPSHOT</version>
diff --git a/testing-modules/xmlunit-2/pom.xml b/testing-modules/xmlunit-2/pom.xml
index aa516bfcc5..5689e680e6 100644
--- a/testing-modules/xmlunit-2/pom.xml
+++ b/testing-modules/xmlunit-2/pom.xml
@@ -1,8 +1,9 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>xmlunit-2</artifactId>
-	<name>xmlunit-2</name>
+    <name>xmlunit-2</name>
 
     <parent>
         <groupId>com.baeldung</groupId>
diff --git a/twilio/pom.xml b/twilio/pom.xml
index 266ac45c92..76ad5faafb 100644
--- a/twilio/pom.xml
+++ b/twilio/pom.xml
@@ -1,16 +1,16 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>twilio</artifactId>
     <version>1.0-SNAPSHOT</version>
-	<name>twilio</name>
-	
-	<parent>
-		<artifactId>parent-modules</artifactId>
-		<groupId>com.baeldung</groupId>
-		<version>1.0.0-SNAPSHOT</version>
-	</parent>
+    <name>twilio</name>
+
+    <parent>
+        <groupId>com.baeldung</groupId>
+        <artifactId>parent-modules</artifactId>
+        <version>1.0.0-SNAPSHOT</version>
+    </parent>
 
     <dependencies>
         <dependency>
diff --git a/twitter4j/pom.xml b/twitter4j/pom.xml
index b82b9f6778..6d98e2fe58 100644
--- a/twitter4j/pom.xml
+++ b/twitter4j/pom.xml
@@ -1,5 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>Twitter4J</artifactId>
     <name>Twitter4J</name>
diff --git a/undertow/pom.xml b/undertow/pom.xml
index 1c2cc3aa36..bed9c905c2 100644
--- a/undertow/pom.xml
+++ b/undertow/pom.xml
@@ -1,5 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <groupId>com.baeldung.undertow</groupId>
     <artifactId>undertow</artifactId>
diff --git a/vaadin/pom.xml b/vaadin/pom.xml
index 0cc6cd5757..9de1bec6e2 100644
--- a/vaadin/pom.xml
+++ b/vaadin/pom.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <groupId>org.test</groupId>
     <artifactId>vaadin</artifactId>
@@ -9,12 +9,12 @@
     <packaging>war</packaging>
 
     <parent>
-        <artifactId>parent-boot-2</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-2</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../parent-boot-2</relativePath>
     </parent>
-    
+
     <dependencyManagement>
         <dependencies>
             <dependency>
@@ -26,7 +26,7 @@
             </dependency>
         </dependencies>
     </dependencyManagement>
-    
+
     <dependencies>
         <dependency>
             <groupId>javax.servlet</groupId>
diff --git a/vavr/pom.xml b/vavr/pom.xml
index a2c6e29cde..16097af848 100644
--- a/vavr/pom.xml
+++ b/vavr/pom.xml
@@ -1,14 +1,14 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung</groupId>
     <artifactId>vavr</artifactId>
     <version>1.0</version>
     <name>vavr</name>
 
     <parent>
-        <artifactId>parent-boot-2</artifactId>
         <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-2</artifactId>
         <version>0.0.1-SNAPSHOT</version>
         <relativePath>../parent-boot-2</relativePath>
     </parent>
diff --git a/vertx-and-rxjava/pom.xml b/vertx-and-rxjava/pom.xml
index 389eaf687b..20b022a773 100644
--- a/vertx-and-rxjava/pom.xml
+++ b/vertx-and-rxjava/pom.xml
@@ -1,10 +1,10 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>vertx-and-rxjava</artifactId>
-	<name>vertx-and-rxjava</name>
-	
+    <name>vertx-and-rxjava</name>
+
     <parent>
         <groupId>com.baeldung</groupId>
         <artifactId>parent-modules</artifactId>
diff --git a/vertx/pom.xml b/vertx/pom.xml
index c566681073..81ede1ba0b 100644
--- a/vertx/pom.xml
+++ b/vertx/pom.xml
@@ -1,8 +1,7 @@
-<?xml version="1.0"?>
+<?xml version="1.0" encoding="UTF-8"?>
 <project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd" xmlns="http://maven.apache.org/POM/4.0.0"
-    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung</groupId>
     <artifactId>vertx</artifactId>
     <version>1.0-SNAPSHOT</version>
     <name>vertx</name>
@@ -54,7 +53,7 @@
                                     </manifestEntries>
                                 </transformer>
                             </transformers>
-                            <artifactSet />
+                            <artifactSet/>
                             <outputFile>${project.build.directory}/${project.artifactId}-${project.version}-app.jar</outputFile>
                         </configuration>
                     </execution>
diff --git a/video-tutorials/jackson-annotations/pom.xml b/video-tutorials/jackson-annotations/pom.xml
index 200ca7577f..f396baf80b 100644
--- a/video-tutorials/jackson-annotations/pom.xml
+++ b/video-tutorials/jackson-annotations/pom.xml
@@ -1,7 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung</groupId>
     <artifactId>jackson-annotations</artifactId>
     <version>1.0.0-SNAPSHOT</version>
     <name>jackson-annotations</name>
@@ -147,7 +147,6 @@
         <assertj-core.version>3.6.1</assertj-core.version>
         <json-schema-validator.version>2.2.6</json-schema-validator.version>
         <json-path.version>3.0.1</json-path.version>
-
     </properties>
 
 </project>
\ No newline at end of file
diff --git a/video-tutorials/pom.xml b/video-tutorials/pom.xml
index a798f77863..53ff0c6d89 100644
--- a/video-tutorials/pom.xml
+++ b/video-tutorials/pom.xml
@@ -1,7 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung</groupId>
     <artifactId>video-tutorials</artifactId>
     <version>1.0.0-SNAPSHOT</version>
     <name>video-tutorials</name>
diff --git a/vraptor/pom.xml b/vraptor/pom.xml
index 3904eb8c63..9956305e98 100644
--- a/vraptor/pom.xml
+++ b/vraptor/pom.xml
@@ -1,10 +1,10 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung</groupId>
     <artifactId>vraptor</artifactId>
     <version>1.0.0</version>
-	<name>vraptor</name>
+    <name>vraptor</name>
     <packaging>war</packaging>
     <description>A demo project to start using VRaptor 4</description>
 
diff --git a/wicket/pom.xml b/wicket/pom.xml
index c7e6bc20de..5175eca59c 100644
--- a/wicket/pom.xml
+++ b/wicket/pom.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <groupId>com.baeldung.wicket.examples</groupId>
     <artifactId>wicket</artifactId>
@@ -30,7 +30,7 @@
             <scope>test</scope>
         </dependency>
     </dependencies>
-    
+
     <build>
         <resources>
             <resource>
diff --git a/wildfly/pom.xml b/wildfly/pom.xml
index d7dd1e835b..e81b609206 100644
--- a/wildfly/pom.xml
+++ b/wildfly/pom.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-
     <groupId>org.springframework</groupId>
     <artifactId>wildfly</artifactId>
     <version>0.1.0</version>
     <name>wildfly</name>
-
     <packaging>war</packaging>
 
     <parent>
@@ -47,10 +45,6 @@
         <!-- end::tests[] -->
     </dependencies>
 
-    <properties>
-        <java.version>1.8</java.version>
-    </properties>
-
     <build>
         <plugins>
             <plugin>
@@ -78,4 +72,9 @@
             </plugin>
         </plugins>
     </build>
+
+    <properties>
+        <java.version>1.8</java.version>
+    </properties>
+
 </project>
diff --git a/xml/pom.xml b/xml/pom.xml
index bbd607f9b5..eb2d567957 100644
--- a/xml/pom.xml
+++ b/xml/pom.xml
@@ -1,3 +1,4 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0"
          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
@@ -137,68 +138,68 @@
         </dependency>
     </dependencies>
 
-	<build>
-		<finalName>xml</finalName>
-		<resources>
-			<resource>
-				<directory>src/main/resources</directory>
-				<filtering>true</filtering>
-			</resource>
-		</resources>
-		<pluginManagement>
-			<plugins>
-				<plugin>
-					<groupId>org.jibx</groupId>
-					<artifactId>maven-jibx-plugin</artifactId>
-				</plugin>
-			</plugins>
-		</pluginManagement>
-		<plugins>
-			<plugin>
-				<groupId>org.jibx</groupId>
-				<artifactId>maven-jibx-plugin</artifactId>
-				<version>${maven-jibx-plugin.version}</version>
-				<configuration>
-					<directory>src/main/resources</directory>
-					<includes>
-						<includes>*-binding.xml</includes>
-					</includes>
-					<excludes>
-						<exclude>template-binding.xml</exclude>
-					</excludes>
-					<schemaBindingDirectory>src/main/resources</schemaBindingDirectory>
-					<includeSchemaBindings>
-						<includeSchemaBindings>*-binding.xml</includeSchemaBindings>
-					</includeSchemaBindings>
-					<verbose>true</verbose>
-				</configuration>
-				<executions>
-					<execution>
-						<id>process-classes</id>
-						<phase>process-classes</phase>
-						<goals>
-							<goal>bind</goal>
-						</goals>
-					</execution>
-					<execution>
-						<id>process-test-classes</id>
-						<phase>process-test-classes</phase>
-						<goals>
-							<goal>test-bind</goal>
-						</goals>
-					</execution>
-				</executions>
-			</plugin>
-			<plugin>
-				<artifactId>maven-compiler-plugin</artifactId>
-				<version>${maven-compiler-plugin.version}</version>
-			</plugin>
-			<plugin>
-				<artifactId>maven-surefire-plugin</artifactId>
-				<version>${maven-surefire-plugin.version}</version>
-			</plugin>
-		</plugins>
-	</build>
+    <build>
+        <finalName>xml</finalName>
+        <resources>
+            <resource>
+                <directory>src/main/resources</directory>
+                <filtering>true</filtering>
+            </resource>
+        </resources>
+        <pluginManagement>
+            <plugins>
+                <plugin>
+                    <groupId>org.jibx</groupId>
+                    <artifactId>maven-jibx-plugin</artifactId>
+                </plugin>
+            </plugins>
+        </pluginManagement>
+        <plugins>
+            <plugin>
+                <groupId>org.jibx</groupId>
+                <artifactId>maven-jibx-plugin</artifactId>
+                <version>${maven-jibx-plugin.version}</version>
+                <configuration>
+                    <directory>src/main/resources</directory>
+                    <includes>
+                        <includes>*-binding.xml</includes>
+                    </includes>
+                    <excludes>
+                        <exclude>template-binding.xml</exclude>
+                    </excludes>
+                    <schemaBindingDirectory>src/main/resources</schemaBindingDirectory>
+                    <includeSchemaBindings>
+                        <includeSchemaBindings>*-binding.xml</includeSchemaBindings>
+                    </includeSchemaBindings>
+                    <verbose>true</verbose>
+                </configuration>
+                <executions>
+                    <execution>
+                        <id>process-classes</id>
+                        <phase>process-classes</phase>
+                        <goals>
+                            <goal>bind</goal>
+                        </goals>
+                    </execution>
+                    <execution>
+                        <id>process-test-classes</id>
+                        <phase>process-test-classes</phase>
+                        <goals>
+                            <goal>test-bind</goal>
+                        </goals>
+                    </execution>
+                </executions>
+            </plugin>
+            <plugin>
+                <artifactId>maven-compiler-plugin</artifactId>
+                <version>${maven-compiler-plugin.version}</version>
+            </plugin>
+            <plugin>
+                <artifactId>maven-surefire-plugin</artifactId>
+                <version>${maven-surefire-plugin.version}</version>
+            </plugin>
+        </plugins>
+    </build>
 
     <profiles>
         <profile>
diff --git a/xstream/pom.xml b/xstream/pom.xml
index b98e258599..a703aa3774 100644
--- a/xstream/pom.xml
+++ b/xstream/pom.xml
@@ -1,5 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <groupId>org.baeldung</groupId>
     <artifactId>xstream</artifactId>
@@ -25,7 +26,6 @@
             <artifactId>jettison</artifactId>
             <version>${jettison.version}</version>
         </dependency>
-
     </dependencies>
 
     <properties>