BAEL-5246: pom cleanup (#4620)

* BAEL-5246: round 1 of pom cleanup - upto "jersey" project

* BAEL-5246: Initial pass for pom cleanup - upto spring-cloud

* BAEL-5246: pom cleanup upto testing-modules/junit5

* BAEL-5246: pom cleanup - upto xstream

* BAEL-5246: pom cleanup - last round (before review)

JGit/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</groupId>
     <artifactId>JGitSnippets</artifactId>
@@ -45,7 +46,6 @@
     </dependencies>
 
     <properties>
-        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <org.eclipse.jgit.version>4.5.0.201609210915-r</org.eclipse.jgit.version>
     </properties>
 

Twitter4J/pom.xml

@@ -1,6 +1,7 @@
 <project xmlns="http://maven.apache.org/POM/4.0.0" 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.mabsisa</groupId>
     <artifactId>Twitter4J</artifactId>
     <packaging>jar</packaging>
@@ -14,17 +15,11 @@
         <version>1.0.0-SNAPSHOT</version>
     </parent>
 
-    <properties>
-        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
-        <java.version>1.8</java.version>
-    </properties>
-
     <dependencies>
         <dependency>
             <groupId>org.twitter4j</groupId>
             <artifactId>twitter4j-stream</artifactId>
-            <version>4.0.6</version>
+            <version>${twitter4j-stream.version}</version>
         </dependency>
     </dependencies>
 
@@ -49,4 +44,8 @@
         </plugins>
     </build>
 
+    <properties>
+        <twitter4j-stream.version>4.0.6</twitter4j-stream.version>
+    </properties>
+
 </project>

activejdbc/pom.xml

@@ -1,5 +1,5 @@
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    xsi: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>activejdbc</artifactId>
@@ -15,12 +15,6 @@
     </parent>
 
     <dependencies>
-        <dependency>
-            <groupId>junit</groupId>
-            <artifactId>junit</artifactId>
-            <version>${junit.version}</version>
-            <scope>test</scope>
-        </dependency>
         <dependency>
             <groupId>org.javalite</groupId>
             <artifactId>activejdbc</artifactId>
@@ -133,10 +127,8 @@
     </pluginRepositories>
 
     <properties>
-        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <activejdbc.version>1.4.13</activejdbc.version>
         <environments>development.test,development</environments>
-        <org.slf4j.version>1.7.9</org.slf4j.version>
         <mysql.connector.version>5.1.34</mysql.connector.version>
     </properties>
 

akka-streams/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>akka-streams</artifactId>
     <name>akka-streams</name>

algorithms/pom.xml

@@ -1,5 +1,5 @@
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    xsi: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>algorithms</artifactId>
@@ -79,7 +79,6 @@
     </reporting>
 
     <properties>
-        <exec-maven-plugin.version>1.5.0</exec-maven-plugin.version>
         <lombok.version>1.16.12</lombok.version>
         <commons-math3.version>3.6.1</commons-math3.version>
         <tradukisto.version>1.0.1</tradukisto.version>

animal-sniffer-mvn-plugin/pom.xml

@@ -1,5 +1,5 @@
 <project xmlns="http://maven.apache.org/POM/4.0.0" 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>animal-sniffer-mvn-plugin</artifactId>
@@ -14,15 +14,6 @@
         <version>1.0.0-SNAPSHOT</version>
     </parent>
 
-    <dependencies>
-        <dependency>
-            <groupId>junit</groupId>
-            <artifactId>junit</artifactId>
-            <version>${junit.version}</version>
-            <scope>test</scope>
-        </dependency>
-    </dependencies>
-
     <build>
         <plugins>
             <plugin>

annotations/annotation-processing/pom.xml

@@ -1,7 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+<project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://maven.apache.org/POM/4.0.0"
-         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>
 

annotations/annotation-user/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>annotation-user</artifactId>
 

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>annotations</artifactId>
     <packaging>pom</packaging>

antlr/pom.xml

@@ -1,5 +1,5 @@
 <project xmlns="http://maven.apache.org/POM/4.0.0" 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>
@@ -45,22 +45,14 @@
         </plugins>
     </build>
     <dependencies>
-		<dependency>
-			<groupId>org.antlr</groupId>
-			<artifactId>antlr4-runtime</artifactId>
-			<version>${antlr.version}</version>
-		</dependency>
         <dependency>
-            <groupId>junit</groupId>
+            <groupId>org.antlr</groupId>
-            <artifactId>junit</artifactId>
+            <artifactId>antlr4-runtime</artifactId>
-            <version>${junit.version}</version>
+            <version>${antlr.version}</version>
-            <scope>test</scope>
         </dependency>
     </dependencies>
     <properties>
-        <java.version>1.8</java.version>
         <antlr.version>4.7.1</antlr.version>
-        <junit.version>4.12</junit.version>
         <mojo.version>3.0.0</mojo.version>
     </properties>
 </project>

apache-bval/pom.xml

@@ -1,5 +1,5 @@
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    xsi: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>

apache-cayenne/pom.xml

@@ -28,12 +28,6 @@
             <scope>runtime</scope>
         </dependency>
 
-        <dependency>
-            <groupId>junit</groupId>
-            <artifactId>junit</artifactId>
-            <version>${junit.version}</version>
-            <scope>test</scope>
-        </dependency>
     </dependencies>
 
     <build>
@@ -47,12 +41,8 @@
     </build>
 
     <properties>
-        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
-        <java.version>1.8</java.version>
         <mysql.connector.version>5.1.44</mysql.connector.version>
         <cayenne.version>4.0.M5</cayenne.version>
-        <junit.version>4.12</junit.version>
     </properties>
 
 </project>

apache-curator/pom.xml

@@ -1,5 +1,5 @@
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    xsi:schemaLocation="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>

apache-cxf/cxf-aegis/pom.xml

@@ -1,5 +1,5 @@
 <project xmlns="http://maven.apache.org/POM/4.0.0" 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>
 
@@ -17,8 +17,4 @@
         </dependency>
     </dependencies>
 
-    <properties>
-        <cxf.version>3.1.8</cxf.version>
-    </properties>
-
 </project>

apache-cxf/cxf-introduction/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>
     <artifactId>cxf-introduction</artifactId>
 
@@ -36,9 +36,4 @@
         </plugins>
     </build>
 
-    <properties>
-        <cxf.version>3.1.8</cxf.version>
-        <surefire.version>2.19.1</surefire.version>
-    </properties>
-
 </project>

apache-cxf/cxf-jaxrs-implementation/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>
     <artifactId>cxf-jaxrs-implementation</artifactId>
 
@@ -48,10 +48,7 @@
     </build>
 
     <properties>
-        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-        <cxf.version>3.1.8</cxf.version>
         <httpclient.version>4.5.2</httpclient.version>
-        <surefire.version>2.19.1</surefire.version>
     </properties>
 
 </project>

apache-cxf/cxf-spring/pom.xml

@@ -1,5 +1,5 @@
 <project xmlns="http://maven.apache.org/POM/4.0.0" 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>
     <packaging>war</packaging>
@@ -101,11 +101,7 @@
     </profiles>
 
     <properties>
-        <cxf.version>3.1.8</cxf.version>
         <spring.version>4.3.4.RELEASE</spring.version>
-        <javax.servlet-api.version>3.1.0</javax.servlet-api.version>
-        <maven-war-plugin.version>2.6</maven-war-plugin.version>
-        <surefire.version>2.19.1</surefire.version>
         <cargo-maven2-plugin.version>1.6.1</cargo-maven2-plugin.version>
     </properties>
 

apache-cxf/pom.xml

@@ -1,5 +1,5 @@
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    xsi: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>apache-cxf</artifactId>
@@ -33,7 +33,7 @@
     </build>
 
     <properties>
-        <exec-maven-plugin.version>1.5.0</exec-maven-plugin.version>
+        <cxf.version>3.1.8</cxf.version>
     </properties>
 
 </project>

apache-fop/pom.xml

@@ -1,5 +1,5 @@
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    xsi: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>apache-fop</artifactId>

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>
@@ -24,12 +24,6 @@
             <version>${org.assertj.version}</version>
             <scope>test</scope>
         </dependency>
-        <dependency>
-            <groupId>junit</groupId>
-            <artifactId>junit</artifactId>
-            <version>${junit.version}</version>
-            <scope>test</scope>
-        </dependency>
     </dependencies>
 
     <properties>

apache-poi/pom.xml

@@ -1,5 +1,5 @@
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    xsi: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>apache-poi</artifactId>

apache-shiro/pom.xml

@@ -10,7 +10,7 @@
     <parent>
         <groupId>org.springframework.boot</groupId>
         <artifactId>spring-boot-starter-parent</artifactId>
-        <version>${org.springframework.boot.spring-boot-starter-parent.version}</version>
+        <version>1.5.2.RELEASE</version>
     </parent>
 
     <dependencies>
@@ -57,10 +57,10 @@
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-compiler-plugin</artifactId>
-                <version>3.7.0</version>
+                <version>${maven-compiler-plugin.version}</version>
                 <configuration>
-                    <source>1.8</source>
+                    <source>${java.version}</source>
-                    <target>1.8</target>
+                    <target>${java.version}</target>
                 </configuration>
             </plugin>
         </plugins>
@@ -68,9 +68,10 @@
 
     <properties>
         <apache-shiro-core-version>1.4.0</apache-shiro-core-version>
+        <maven-compiler-plugin.version>3.7.0</maven-compiler-plugin.version>
+        <java.version>1.8</java.version>
         <log4j-version>1.2.17</log4j-version>
         <slf4j-version>1.7.25</slf4j-version>
-        <org.springframework.boot.spring-boot-starter-parent.version>1.5.2.RELEASE</org.springframework.boot.spring-boot-starter-parent.version>
     </properties>
 
 </project>

apache-solrj/pom.xml

@@ -1,5 +1,5 @@
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    xsi: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>apache-solrj</artifactId>

apache-spark/pom.xml

@@ -1,5 +1,5 @@
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    xsi: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>apache-spark</artifactId>
@@ -21,16 +21,9 @@
             <artifactId>spark-core_2.10</artifactId>
             <version>${org.apache.spark.spark-core.version}</version>
         </dependency>
-        <dependency>
-            <groupId>junit</groupId>
-            <artifactId>junit</artifactId>
-            <version>${junit.version}</version>
-            <scope>test</scope>
-        </dependency>
     </dependencies>
 
     <properties>
-        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <org.apache.spark.spark-core.version>2.2.0</org.apache.spark.spark-core.version>
     </properties>
 

apache-thrift/pom.xml

@@ -1,5 +1,5 @@
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    xsi: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>apache-thrift</artifactId>

apache-tika/pom.xml

@@ -1,5 +1,5 @@
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    xsi: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>apache-tika</artifactId>

apache-velocity/pom.xml

@@ -60,7 +60,6 @@
 
     <properties>
         <jstl.version>1.2</jstl.version>
-        <maven-war-plugin.version>2.6</maven-war-plugin.version>
         <org.apache.httpcomponents.version>4.5.2</org.apache.httpcomponents.version>
         <velocity-version>1.7</velocity-version>
         <velocity-tools-version>2.0</velocity-tools-version>

apache-zookeeper/pom.xml

@@ -1,5 +1,5 @@
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    xsi: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>apache-zookeeper</artifactId>

asciidoctor/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>asciidoctor</artifactId>
     <name>asciidoctor</name>

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>
@@ -54,10 +54,8 @@
     </build>
 
     <properties>
-        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <asm.version>5.2</asm.version>
         <maven-jar-plugin.version>2.4</maven-jar-plugin.version>
-        <maven-surefire-plugin.version>2.9</maven-surefire-plugin.version>
     </properties>
 
 </project>

atomix/pom.xml

@@ -1,5 +1,5 @@
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    xsi: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>
@@ -17,12 +17,6 @@
             <artifactId>atomix-all</artifactId>
             <version>${atomix-all.version}</version>
         </dependency>
-        <dependency>
-            <groupId>junit</groupId>
-            <artifactId>junit</artifactId>
-            <version>${junit.version}</version>
-            <scope>test</scope>
-        </dependency>
         <dependency>
             <groupId>log4j</groupId>
             <artifactId>log4j</artifactId>
@@ -32,7 +26,6 @@
 
     <properties>
         <atomix-all.version>1.0.0-rc9</atomix-all.version>
-        <log4j.version>1.2.17</log4j.version>
     </properties>
 
 </project>

autovalue/pom.xml

@@ -1,5 +1,5 @@
 <project xmlns="http://maven.apache.org/POM/4.0.0" 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>autovalue</artifactId>

aws-lambda/pom.xml

@@ -1,31 +1,30 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<project xmlns="http://maven.apache.org/POM/4.0.0"
+<project 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"
+    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
-         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
-    <parent>
-        <artifactId>parent-modules</artifactId>
-        <groupId>com.baeldung</groupId>
-        <version>1.0.0-SNAPSHOT</version>
-    </parent>
     <modelVersion>4.0.0</modelVersion>
-
     <groupId>com.baeldung</groupId>
     <artifactId>aws-lambda</artifactId>
     <version>0.1.0-SNAPSHOT</version>
     <packaging>jar</packaging>
     <name>aws-lambda</name>
 
+    <parent>
+        <artifactId>parent-modules</artifactId>
+        <groupId>com.baeldung</groupId>
+        <version>1.0.0-SNAPSHOT</version>
+    </parent>
+
     <dependencies>
 
         <dependency>
             <groupId>com.amazonaws</groupId>
             <artifactId>aws-java-sdk-dynamodb</artifactId>
-            <version>1.11.241</version>
+            <version>${aws-java-sdk.version}</version>
         </dependency>
         <dependency>
             <groupId>com.amazonaws</groupId>
             <artifactId>aws-java-sdk-core</artifactId>
-            <version>1.11.241</version>
+            <version>${aws-java-sdk.version}</version>
         </dependency>
         <dependency>
             <groupId>com.amazonaws</groupId>
@@ -65,26 +64,28 @@
             <version>${json-simple.version}</version>
         </dependency>
     </dependencies>
+    
     <build>
-    <plugins>
+        <plugins>
-    <plugin>
+            <plugin>
-        <groupId>org.apache.maven.plugins</groupId>
+                <groupId>org.apache.maven.plugins</groupId>
-        <artifactId>maven-shade-plugin</artifactId>
+                <artifactId>maven-shade-plugin</artifactId>
-        <version>${maven-shade-plugin.version}</version>
+                <version>${maven-shade-plugin.version}</version>
-        <configuration>
+                <configuration>
-            <createDependencyReducedPom>false</createDependencyReducedPom>
+                    <createDependencyReducedPom>false</createDependencyReducedPom>
-        </configuration>
+                </configuration>
-        <executions>
+                <executions>
-            <execution>
+                    <execution>
-                <phase>package</phase>
+                        <phase>package</phase>
-                <goals>
+                        <goals>
-                    <goal>shade</goal>
+                            <goal>shade</goal>
-                </goals>
+                        </goals>
-            </execution>
+                    </execution>
-        </executions>
+                </executions>
-    </plugin>
+            </plugin>
-    </plugins>
+        </plugins>
     </build>
+    
     <properties>
         <json-simple.version>1.1.1</json-simple.version>
         <org.json.version>20180130</org.json.version>
@@ -92,8 +93,9 @@
         <aws-lambda-java-events.version>1.3.0</aws-lambda-java-events.version>
         <aws-lambda-java-core.version>1.2.0</aws-lambda-java-core.version>
         <gson.version>2.8.2</gson.version>
-        <aws-java-sdk-core.version>1.11.241</aws-java-sdk-core.version>
+        <aws-java-sdk.version>1.11.241</aws-java-sdk.version>
         <maven-shade-plugin.version>3.0.0</maven-shade-plugin.version>
         <maven-dependency-plugin.version>2.10</maven-dependency-plugin.version>
     </properties>
+    
 </project>

aws/pom.xml

@@ -1,5 +1,5 @@
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    xsi: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>aws</artifactId>
@@ -19,13 +19,7 @@
             <artifactId>aws-java-sdk</artifactId>
             <version>${aws-java-sdk.version}</version>
         </dependency>
-        <dependency>
+       <dependency>
-            <groupId>junit</groupId>
-            <artifactId>junit</artifactId>
-            <version>${junit.version}</version>
-            <scope>test</scope>
-        </dependency>
-        <dependency>
             <groupId>org.mockito</groupId>
             <artifactId>mockito-core</artifactId>
             <version>${mockito-core.version}</version>
@@ -143,7 +137,6 @@
         <aws-lambda-java-core.version>1.1.0</aws-lambda-java-core.version>
         <gson.version>2.8.0</gson.version>
         <aws-java-sdk.version>1.11.290</aws-java-sdk.version>
-        <junit.version>4.12</junit.version>
         <mockito-core.version>2.8.9</mockito-core.version>
         <assertj-core.version>3.8.0</assertj-core.version>
         <dynamodblocal.version>1.11.86</dynamodblocal.version>

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>
 

azure/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>azure</artifactId>
     <version>0.1</version>
@@ -17,11 +16,6 @@
         <relativePath>../parent-boot-2</relativePath>
     </parent>
 
-    <properties>
-        <azure.containerRegistry>baeldungadr</azure.containerRegistry>
-        <docker.image.prefix>${azure.containerRegistry}.azurecr.io</docker.image.prefix>
-    </properties>
-
     <dependencies>
         <dependency>
             <groupId>org.springframework.boot</groupId>
@@ -42,12 +36,13 @@
         <dependency>
             <groupId>com.h2database</groupId>
             <artifactId>h2</artifactId>
+            <scope>runtime</scope>
         </dependency>
 
         <dependency>
             <groupId>mysql</groupId>
             <artifactId>mysql-connector-java</artifactId>
-            <version>5.1.6</version>
+            <scope>runtime</scope>
         </dependency>
 
     </dependencies>
@@ -61,7 +56,7 @@
             <plugin>
                 <groupId>com.spotify</groupId>
                 <artifactId>docker-maven-plugin</artifactId>
-                <version>1.1.0</version>
+                <version>{docker-maven-plugin.version}</version>
                 <configuration>
                     <imageName>${docker.image.prefix}/${project.artifactId}</imageName>
                     <registryUrl>https://${docker.image.prefix}</registryUrl>
@@ -79,7 +74,7 @@
             <plugin>
                 <groupId>com.microsoft.azure</groupId>
                 <artifactId>azure-webapp-maven-plugin</artifactId>
-                <version>1.1.0</version>
+                <version>${azure-webapp-maven-plugin.version}</version>
                 <configuration>
                     <authentication>
                         <serverId>azure-auth</serverId>
@@ -87,45 +82,52 @@
                     <resourceGroup>baeldung-group</resourceGroup>
                     <appName>baeldung-webapp</appName>
                     <appServicePlanName>baeldung-plan</appServicePlanName>
-                    <javaVersion>1.8</javaVersion>
+                    <javaVersion>{java.version}</javaVersion>
-                    <!--<javaWebContainer>tomcat 8.5</javaWebContainer>-->
+                    <!--<javaWebContainer>tomcat 8.5</javaWebContainer> -->
-                    <!--<region>japanwest</region>-->
+                    <!--<region>japanwest</region> -->
-                    <!--<containerSettings>-->
+                    <!--<containerSettings> -->
-                    <!--<imageName>${docker.image.prefix}/${project.artifactId}</imageName>-->
+                    <!--<imageName>${docker.image.prefix}/${project.artifactId}</imageName> -->
-                    <!--<registryUrl>https://${docker.image.prefix}</registryUrl>-->
+                    <!--<registryUrl>https://${docker.image.prefix}</registryUrl> -->
-                    <!--<serverId>${azure.containerRegistry}</serverId>-->
+                    <!--<serverId>${azure.containerRegistry}</serverId> -->
-                    <!--</containerSettings>-->
+                    <!--</containerSettings> -->
                     <appSettings>
                         <property>
                             <name>spring.datasource.url</name>
                             <value>jdbc:h2:file:~/test</value>
-                            <!--<value>jdbc:mysql://127.0.0.1:55738/localdb</value>-->
+                            <!--<value>jdbc:mysql://127.0.0.1:55738/localdb</value> -->
                         </property>
                         <property>
                             <name>spring.datasource.username</name>
                             <value>sa</value>
-                            <!--<value>azure</value>-->
+                            <!--<value>azure</value> -->
                         </property>
                         <property>
                             <name>spring.datasource.password</name>
                             <value></value>
-                            <!--<value>replace-with-your-password</value>-->
+                            <!--<value>replace-with-your-password</value> -->
                         </property>
                     </appSettings>
-                    <!--<deploymentType>ftp</deploymentType>-->
+                    <!--<deploymentType>ftp</deploymentType> -->
-                    <!--<resources>-->
+                    <!--<resources> -->
-                    <!--<resource>-->
+                    <!--<resource> -->
-                    <!--<directory>${project.basedir}/target</directory>-->
+                    <!--<directory>${project.basedir}/target</directory> -->
-                    <!--<targetPath>webapps</targetPath>-->
+                    <!--<targetPath>webapps</targetPath> -->
-                    <!--<includes>-->
+                    <!--<includes> -->
-                    <!--<include>*.war</include>-->
+                    <!--<include>*.war</include> -->
-                    <!--</includes>-->
+                    <!--</includes> -->
-                    <!--</resource>-->
+                    <!--</resource> -->
-                    <!--</resources>-->
+                    <!--</resources> -->
                 </configuration>
             </plugin>
         </plugins>
     </build>
 
+    <properties>
+        <azure.containerRegistry>baeldungadr</azure.containerRegistry>
+        <docker.image.prefix>${azure.containerRegistry}.azurecr.io</docker.image.prefix>
+        <docker-maven-plugin.version>1.1.0</docker-maven-plugin.version>
+        <azure-webapp-maven-plugin.version>1.1.0</azure-webapp-maven-plugin.version>
+        <java.version>1.8</java.version>
+    </properties>
 
 </project>

bootique/pom.xml

@@ -1,5 +1,5 @@
 <project xmlns="http://maven.apache.org/POM/4.0.0" 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>

camel-api/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</groupId>
     <artifactId>spring-boot-camel</artifactId>
@@ -60,8 +60,6 @@
     </build>
 
     <properties>
-        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-        <maven-compiler-plugin.version>3.7.0</maven-compiler-plugin.version>
         <camel.version>2.19.1</camel.version>
         <spring-boot-starter.version>1.5.4.RELEASE</spring-boot-starter.version>
     </properties>

cas/cas-secured-app/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</groupId>
     <artifactId>cas-secured-app</artifactId>
@@ -13,7 +13,7 @@
         <groupId>org.springframework.boot</groupId>
         <artifactId>spring-boot-starter-parent</artifactId>
         <version>1.5.13.RELEASE</version>
-        <relativePath/> <!-- lookup parent from repository -->
+        <relativePath /> <!-- lookup parent from repository -->
     </parent>
 
     <dependencies>

cas/cas-server/pom.xml

@@ -1,7 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<project xmlns="http://maven.apache.org/POM/4.0.0"
+<project 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"
+    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd ">
-         xsi: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>cas-server</artifactId>
@@ -10,20 +9,20 @@
 
     <dependencies>
         <dependency>
-        <groupId>org.apereo.cas</groupId>
+            <groupId>org.apereo.cas</groupId>
-        <artifactId>cas-server-support-json-service-registry</artifactId>
+            <artifactId>cas-server-support-json-service-registry</artifactId>
-        <version>${cas.version}</version>
+            <version>${cas.version}</version>
-    </dependency>
+        </dependency>
-    <dependency>
+        <dependency>
-        <groupId>org.apereo.cas</groupId>
+            <groupId>org.apereo.cas</groupId>
-        <artifactId>cas-server-support-jdbc</artifactId>
+            <artifactId>cas-server-support-jdbc</artifactId>
-        <version>${cas.version}</version>
+            <version>${cas.version}</version>
-    </dependency>
+        </dependency>
-    <dependency>
+        <dependency>
-        <groupId>org.apereo.cas</groupId>
+            <groupId>org.apereo.cas</groupId>
-        <artifactId>cas-server-support-jdbc-drivers</artifactId>
+            <artifactId>cas-server-support-jdbc-drivers</artifactId>
-        <version>${cas.version}</version>
+            <version>${cas.version}</version>
-    </dependency>
+        </dependency>
     </dependencies>
 
     <build>
@@ -31,7 +30,7 @@
             <plugin>
                 <groupId>com.rimerosolutions.maven.plugins</groupId>
                 <artifactId>wrapper-maven-plugin</artifactId>
-                <version>0.0.4</version>
+                <version>${wrapper-maven-plugin.version}</version>
                 <configuration>
                     <verifyDownload>true</verifyDownload>
                     <checksumAlgorithm>MD5</checksumAlgorithm>
@@ -58,7 +57,7 @@
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-war-plugin</artifactId>
-                <version>2.6</version>
+                <version>${maven-war-plugin.version}</version>
                 <configuration>
                     <warName>cas</warName>
                     <failOnMissingWebXml>false</failOnMissingWebXml>
@@ -78,27 +77,12 @@
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-compiler-plugin</artifactId>
-                <version>3.3</version>
+                <version>${maven-compiler-plugin.version}</version>
             </plugin>
         </plugins>
         <finalName>cas</finalName>
     </build>
 
-    <properties>
-        <cas.version>5.3.0-SNAPSHOT</cas.version>
-        <springboot.version>1.5.13.RELEASE</springboot.version>
-        <!-- app.server could be -jetty, -undertow, -tomcat, or blank if you plan to provide appserver -->
-        <app.server>-tomcat</app.server>
-
-        <mainClassName>org.springframework.boot.loader.WarLauncher</mainClassName>
-        <isExecutable>false</isExecutable>
-        <manifestFileToUse>${project.build.directory}/war/work/org.apereo.cas/cas-server-webapp${app.server}/META-INF/MANIFEST.MF</manifestFileToUse>
-
-        <maven.compiler.source>1.8</maven.compiler.source>
-        <maven.compiler.target>1.8</maven.compiler.target>
-        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-    </properties>
-
     <repositories>
         <repository>
             <id>sonatype-releases</id>
@@ -140,9 +124,7 @@
                     <type>war</type>
                     <scope>runtime</scope>
                 </dependency>
-                <!--
+                <!-- ...Additional dependencies may be placed here... -->
-                ...Additional dependencies may be placed here...
-                -->
             </dependencies>
         </profile>
 
@@ -161,7 +143,7 @@
                     <plugin>
                         <groupId>com.soebes.maven.plugins</groupId>
                         <artifactId>echo-maven-plugin</artifactId>
-                        <version>0.3.0</version>
+                        <version>${echo-maven-plugin.version}</version>
                         <executions>
                             <execution>
                                 <phase>prepare-package</phase>
@@ -210,7 +192,7 @@
                     <plugin>
                         <groupId>com.github.s4u.plugins</groupId>
                         <artifactId>pgpverify-maven-plugin</artifactId>
-                        <version>1.1.0</version>
+                        <version>${pgpverify-maven-plugin.version}</version>
                         <executions>
                             <execution>
                                 <goals>
@@ -230,4 +212,25 @@
             </build>
         </profile>
     </profiles>
+
+    <properties>
+        <cas.version>5.3.0-SNAPSHOT</cas.version>
+        <springboot.version>1.5.13.RELEASE</springboot.version>
+        <!-- app.server could be -jetty, -undertow, -tomcat, or blank if you plan to provide appserver -->
+        <app.server>-tomcat</app.server>
+
+        <mainClassName>org.springframework.boot.loader.WarLauncher</mainClassName>
+        <isExecutable>false</isExecutable>
+        <manifestFileToUse>${project.build.directory}/war/work/org.apereo.cas/cas-server-webapp${app.server}/META-INF/MANIFEST.MF</manifestFileToUse>
+
+        <maven.compiler.source>1.8</maven.compiler.source>
+        <maven.compiler.target>1.8</maven.compiler.target>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <wrapper-maven-plugin.version>0.0.4</wrapper-maven-plugin.version>
+        <maven-war-plugin.version>2.6</maven-war-plugin.version>
+        <maven-compiler-plugin.version>3.3</maven-compiler-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>
+
 </project>

cdi/pom.xml

@@ -17,19 +17,19 @@
         <dependency>
             <groupId>org.hamcrest</groupId>
             <artifactId>hamcrest-core</artifactId>
-            <version>1.3</version>
+            <version>${hamcrest-core.version}</version>
             <scope>test</scope>
         </dependency>
         <dependency>
             <groupId>org.assertj</groupId>
             <artifactId>assertj-core</artifactId>
-            <version>3.10.0</version>
+            <version>${assertj-core.version}</version>
             <scope>test</scope>
         </dependency>
         <dependency>
             <groupId>junit</groupId>
             <artifactId>junit</artifactId>
-            <version>4.12</version>
+            <version>${junit.version}</version>
             <scope>test</scope>
         </dependency>
         <dependency>
@@ -58,6 +58,9 @@
     <properties>
         <aspectjweaver.version>1.8.9</aspectjweaver.version>
         <weld-se-core.version>2.4.1.Final</weld-se-core.version>
+        <hamcrest-core.version>1.3</hamcrest-core.version>
+        <assertj-core.version>3.10.0</assertj-core.version>
+        <junit.version>4.12</junit.version>
     </properties>
 
 </project>

checker-plugin/pom.xml

@@ -66,8 +66,8 @@
                 <artifactId>maven-compiler-plugin</artifactId>
                 <version>${maven-compiler-plugin.version}</version>
                 <configuration>
-                    <source>${maven.compiler.source}</source>
+                    <source>${java.version}</source>
-                    <target>${maven.compiler.target}</target>
+                    <target>${java.version}</target>
                     <!-- Uncomment the following line to use the type annotations compiler. -->
                     <!-- <fork>true</fork> -->
                     <compilerArguments>
@@ -113,8 +113,6 @@
         <checker.version>2.3.1</checker.version>
         <jdk8.version>2.3.1</jdk8.version>
         <checkerframework.compiler.version>2.3.1</checkerframework.compiler.version>
-        <maven.compiler.source>1.8</maven.compiler.source>
-        <maven.compiler.target>1.8</maven.compiler.target>
     </properties>
 
 </project>

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>
@@ -101,24 +101,13 @@
     </repositories>
 
     <properties>
-        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-        <kotlin-maven-plugin.version>1.1.2</kotlin-maven-plugin.version>
-        <kotlin-test-junit.version>1.1.2</kotlin-test-junit.version>
-        <kotlin-stdlib.version>1.1.2</kotlin-stdlib.version>
-        <kotlin-reflect.version>1.1.2</kotlin-reflect.version>
-        <kotlinx.version>0.15</kotlinx.version>
-        <mockito-kotlin.version>1.5.0</mockito-kotlin.version>
-        <junit.jupiter.version>5.0.0</junit.jupiter.version>
         <junit.platform.version>1.0.0</junit.platform.version>
-        <junit.vintage.version>4.12.0</junit.vintage.version>
-        <junit4.version>4.12</junit4.version>
         <groovy.version>2.4.13</groovy.version>
         <groovy-all.version>2.4.13</groovy-all.version>
         <groovy-sql.version>2.4.13</groovy-sql.version>
         <hsqldb.version>2.4.0</hsqldb.version>
         <spock-core.version>1.1-groovy-2.4</spock-core.version>
         <gmavenplus-plugin.version>1.6</gmavenplus-plugin.version>
-        <maven-failsafe-plugin.version>2.19.1</maven-failsafe-plugin.version>
     </properties>
 </project>
 

core-java-10/pom.xml

@@ -1,45 +1,36 @@
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
-	<modelVersion>4.0.0</modelVersion>
+    <modelVersion>4.0.0</modelVersion>
-	<groupId>com.baeldung</groupId>
+    <groupId>com.baeldung</groupId>
-	<artifactId>core-java-10</artifactId>
+    <artifactId>core-java-10</artifactId>
-	<packaging>jar</packaging>
+    <packaging>jar</packaging>
-	<version>0.1.0-SNAPSHOT</version>
+    <version>0.1.0-SNAPSHOT</version>
-	<name>core-java-10</name>
+    <name>core-java-10</name>
-	<url>http://maven.apache.org</url>
+    <url>http://maven.apache.org</url>
 
-	<parent>
+    <parent>
-		<groupId>com.baeldung</groupId>
+        <groupId>com.baeldung</groupId>
-		<artifactId>parent-modules</artifactId>
+        <artifactId>parent-modules</artifactId>
-		<version>1.0.0-SNAPSHOT</version>
+        <version>1.0.0-SNAPSHOT</version>
-	</parent>
+    </parent>
 
-	<dependencies>
+    <build>
-		<dependency>
+        <plugins>
-			<groupId>junit</groupId>
+            <plugin>
-			<artifactId>junit</artifactId>
+                <groupId>org.apache.maven.plugins</groupId>
-			<version>${junit.version}</version>
+                <artifactId>maven-compiler-plugin</artifactId>
-			<scope>test</scope>
+                <version>${maven-compiler-plugin.version}</version>
-		</dependency>
+                <configuration>
-	</dependencies>
+                    <source>${maven.compiler.source.version}</source>
+                    <target>${maven.compiler.target.version}</target>
+                </configuration>
+            </plugin>
+        </plugins>
+    </build>
 
-	<build>
+    <properties>
-		<plugins>
+        <maven.compiler.source.version>10</maven.compiler.source.version>
-			<plugin>
+        <maven.compiler.target.version>10</maven.compiler.target.version>
-				<groupId>org.apache.maven.plugins</groupId>
+    </properties>
-				<artifactId>maven-compiler-plugin</artifactId>
-				<version>${maven-compiler-plugin.version}</version>
-				<configuration>
-					<source>${maven.compiler.source.version}</source>
-					<target>${maven.compiler.target.version}</target>
-				</configuration>
-			</plugin>
-		</plugins>
-	</build>
-
-	<properties>
-		<maven.compiler.source.version>10</maven.compiler.source.version>
-		<maven.compiler.target.version>10</maven.compiler.target.version>
-	</properties>
 
 </project>

core-java-11/pom.xml

@@ -1,45 +1,36 @@
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
-	<modelVersion>4.0.0</modelVersion>
+    <modelVersion>4.0.0</modelVersion>
-	<groupId>com.baeldung</groupId>
+    <groupId>com.baeldung</groupId>
-	<artifactId>core-java-11</artifactId>
+    <artifactId>core-java-11</artifactId>
-	<packaging>jar</packaging>
+    <packaging>jar</packaging>
-	<version>0.1.0-SNAPSHOT</version>
+    <version>0.1.0-SNAPSHOT</version>
-	<name>core-java-11</name>
+    <name>core-java-11</name>
-	<url>http://maven.apache.org</url>
+    <url>http://maven.apache.org</url>
 
-	<parent>
+    <parent>
-		<groupId>com.baeldung</groupId>
+        <groupId>com.baeldung</groupId>
-		<artifactId>parent-modules</artifactId>
+        <artifactId>parent-modules</artifactId>
-		<version>1.0.0-SNAPSHOT</version>
+        <version>1.0.0-SNAPSHOT</version>
-	</parent>
+    </parent>
 
-	<dependencies>
+    <build>
-		<dependency>
+        <plugins>
-			<groupId>junit</groupId>
+            <plugin>
-			<artifactId>junit</artifactId>
+                <groupId>org.apache.maven.plugins</groupId>
-			<version>${junit.version}</version>
+                <artifactId>maven-compiler-plugin</artifactId>
-			<scope>test</scope>
+                <version>${maven-compiler-plugin.version}</version>
-		</dependency>
+                <configuration>
-	</dependencies>
+                    <source>${maven.compiler.source.version}</source>
+                    <target>${maven.compiler.target.version}</target>
+                </configuration>
+            </plugin>
+        </plugins>
+    </build>
 
-	<build>
+    <properties>
-		<plugins>
+        <maven.compiler.source.version>11</maven.compiler.source.version>
-			<plugin>
+        <maven.compiler.target.version>11</maven.compiler.target.version>
-				<groupId>org.apache.maven.plugins</groupId>
+    </properties>
-				<artifactId>maven-compiler-plugin</artifactId>
-				<version>${maven-compiler-plugin.version}</version>
-				<configuration>
-					<source>${maven.compiler.source.version}</source>
-					<target>${maven.compiler.target.version}</target>
-				</configuration>
-			</plugin>
-		</plugins>
-	</build>
-
-	<properties>
-		<maven.compiler.source.version>11</maven.compiler.source.version>
-		<maven.compiler.target.version>11</maven.compiler.target.version>
-	</properties>
 
 </project>

core-java-8/pom.xml

@@ -1,5 +1,5 @@
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    xsi: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-8</artifactId>
@@ -10,8 +10,8 @@
     <parent>
         <groupId>com.baeldung</groupId>
         <artifactId>parent-java</artifactId>
-    	<version>0.0.1-SNAPSHOT</version>
+        <version>0.0.1-SNAPSHOT</version>
-    	<relativePath>../parent-java</relativePath>
+        <relativePath>../parent-java</relativePath>
     </parent>
 
     <dependencies>
@@ -170,8 +170,7 @@
                         <configuration>
                             <shadedArtifactAttached>true</shadedArtifactAttached>
                             <transformers>
-                                <transformer
+                                <transformer implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
-                                        implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
                                     <mainClass>org.baeldung.executable.ExecutableMavenJar</mainClass>
                                 </transformer>
                             </transformers>
@@ -195,16 +194,16 @@
                     </execution>
                 </executions>
             </plugin>
-			<plugin>
+            <plugin>
-				<groupId>org.apache.maven.plugins</groupId>
+                <groupId>org.apache.maven.plugins</groupId>
-				<artifactId>maven-compiler-plugin</artifactId>
+                <artifactId>maven-compiler-plugin</artifactId>
-				<version>3.1</version>
+                <version>3.1</version>
-				<configuration>
+                <configuration>
-					<source>1.8</source>
+                    <source>1.8</source>
-					<target>1.8</target>
+                    <target>1.8</target>
-					<compilerArgument>-parameters</compilerArgument>
+                    <compilerArgument>-parameters</compilerArgument>
-				</configuration>
+                </configuration>
-			</plugin>
+            </plugin>
             <plugin>
                 <groupId>org.springframework.boot</groupId>
                 <artifactId>spring-boot-maven-plugin</artifactId>
@@ -225,10 +224,8 @@
 
     <properties>
         <!-- util -->
-        <guava.version>21.0</guava.version>
         <commons-lang3.version>3.5</commons-lang3.version>
         <commons-math3.version>3.6.1</commons-math3.version>
-        <commons-io.version>2.5</commons-io.version>
         <commons-collections4.version>4.1</commons-collections4.version>
         <collections-generic.version>4.01</collections-generic.version>
         <commons-codec.version>1.10</commons-codec.version>

core-java-9/pom.xml

@@ -1,5 +1,5 @@
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    xsi: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-9</artifactId>
@@ -13,34 +13,6 @@
     </parent>
 
     <dependencies>
-        <dependency>
-            <groupId>org.slf4j</groupId>
-            <artifactId>slf4j-api</artifactId>
-            <version>${org.slf4j.version}</version>
-        </dependency>
-        <dependency>
-            <groupId>ch.qos.logback</groupId>
-            <artifactId>logback-classic</artifactId>
-            <version>${ch.qos.logback.version}</version>
-        </dependency>
-        <dependency>
-            <groupId>org.hamcrest</groupId>
-            <artifactId>hamcrest-library</artifactId>
-            <version>${org.hamcrest.version}</version>
-            <scope>test</scope>
-        </dependency>
-        <dependency>
-            <groupId>junit</groupId>
-            <artifactId>junit</artifactId>
-            <version>${junit.version}</version>
-            <scope>test</scope>
-        </dependency>
-        <dependency>
-            <groupId>org.mockito</groupId>
-            <artifactId>mockito-core</artifactId>
-            <version>${mockito.version}</version>
-            <scope>test</scope>
-        </dependency>
         <dependency>
             <groupId>com.jayway.awaitility</groupId>
             <artifactId>awaitility</artifactId>
@@ -77,20 +49,7 @@
     </pluginRepositories>
 
     <properties>
-        <!-- project build encoding -->
-        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-
-        <!-- logging -->
-        <org.slf4j.version>1.7.21</org.slf4j.version>
-        <ch.qos.logback.version>1.2.1</ch.qos.logback.version>
-        <!-- maven plugins -->
-        <maven-compiler-plugin.version>3.7.0</maven-compiler-plugin.version>
-        <maven-surefire-plugin.version>2.19.1</maven-surefire-plugin.version>
-
         <!-- testing -->
-        <org.hamcrest.version>1.3</org.hamcrest.version>
-        <junit.version>4.12</junit.version>
-        <mockito.version>1.10.19</mockito.version>
         <awaitility.version>1.7.0</awaitility.version>
         <maven.compiler.source>1.9</maven.compiler.source>
         <maven.compiler.target>1.9</maven.compiler.target>

core-java-collections/pom.xml

@@ -1,60 +1,54 @@
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
-	<modelVersion>4.0.0</modelVersion>
+    <modelVersion>4.0.0</modelVersion>
-	<groupId>com.baeldung</groupId>
+    <groupId>com.baeldung</groupId>
-	<artifactId>core-java-collections</artifactId>
+    <artifactId>core-java-collections</artifactId>
-	<version>0.1.0-SNAPSHOT</version>
+    <version>0.1.0-SNAPSHOT</version>
-	<packaging>jar</packaging>
+    <packaging>jar</packaging>
-	<name>core-java-collections</name>
+    <name>core-java-collections</name>
 
-	<parent>
+    <parent>
         <groupId>com.baeldung</groupId>
         <artifactId>parent-java</artifactId>
-    	<version>0.0.1-SNAPSHOT</version>
+        <version>0.0.1-SNAPSHOT</version>
-    	<relativePath>../parent-java</relativePath>
+        <relativePath>../parent-java</relativePath>
     </parent>
 
-	<dependencies>
+    <dependencies>
-		<dependency>
+        <dependency>
-			<groupId>junit</groupId>
+            <groupId>net.sourceforge.collections</groupId>
-			<artifactId>junit</artifactId>
+            <artifactId>collections-generic</artifactId>
-			<version>${junit.version}</version>
+            <version>${collections-generic.version}</version>
-			<scope>test</scope>
+        </dependency>
-		</dependency>
+        <dependency>
-		<dependency>
+            <groupId>org.apache.commons</groupId>
-			<groupId>net.sourceforge.collections</groupId>
+            <artifactId>commons-collections4</artifactId>
-			<artifactId>collections-generic</artifactId>
+            <version>${commons-collections4.version}</version>
-			<version>${collections-generic.version}</version>
+        </dependency>
-		</dependency>
+        <dependency>
-		<dependency>
+            <groupId>com.jayway.awaitility</groupId>
-			<groupId>org.apache.commons</groupId>
+            <artifactId>awaitility</artifactId>
-			<artifactId>commons-collections4</artifactId>
+            <version>${avaitility.version}</version>
-			<version>${commons-collections4.version}</version>
+            <scope>test</scope>
-		</dependency>
+        </dependency>
-		<dependency>
+        <dependency>
-			<groupId>com.jayway.awaitility</groupId>
+            <groupId>org.apache.commons</groupId>
-			<artifactId>awaitility</artifactId>
+            <artifactId>commons-lang3</artifactId>
-			<version>${avaitility.version}</version>
+            <version>${commons-lang3.version}</version>
-			<scope>test</scope>
+        </dependency>
-		</dependency>
+        <dependency>
-		<dependency>
+            <groupId>org.assertj</groupId>
-			<groupId>org.apache.commons</groupId>
+            <artifactId>assertj-core</artifactId>
-			<artifactId>commons-lang3</artifactId>
+            <version>${assertj.version}</version>
-			<version>${commons-lang3.version}</version>
+            <scope>test</scope>
-		</dependency>
+        </dependency>
-		<dependency>
+    </dependencies>
-			<groupId>org.assertj</groupId>
-			<artifactId>assertj-core</artifactId>
-			<version>${assertj.version}</version>
-			<scope>test</scope>
-		</dependency>
-	</dependencies>
 
-	<properties>
+    <properties>
-		<commons-lang3.version>3.5</commons-lang3.version>
+        <commons-lang3.version>3.5</commons-lang3.version>
-		<commons-collections4.version>4.1</commons-collections4.version>
+        <commons-collections4.version>4.1</commons-collections4.version>
-		<collections-generic.version>4.01</collections-generic.version>
+        <collections-generic.version>4.01</collections-generic.version>
-		<avaitility.version>1.7.0</avaitility.version>
+        <avaitility.version>1.7.0</avaitility.version>
-		<assertj.version>3.6.1</assertj.version>
+        <assertj.version>3.6.1</assertj.version>
-	</properties>
+    </properties>
 </project>

core-java-concurrency/pom.xml

@@ -1,5 +1,5 @@
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    xsi: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</artifactId>
@@ -10,8 +10,8 @@
     <parent>
         <groupId>com.baeldung</groupId>
         <artifactId>parent-java</artifactId>
-    	<version>0.0.1-SNAPSHOT</version>
+        <version>0.0.1-SNAPSHOT</version>
-    	<relativePath>../parent-java</relativePath>
+        <relativePath>../parent-java</relativePath>
     </parent>
 
     <dependencies>
@@ -122,8 +122,7 @@
                         <configuration>
                             <shadedArtifactAttached>true</shadedArtifactAttached>
                             <transformers>
-                                <transformer
+                                <transformer implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
-                                        implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
                                     <mainClass>org.baeldung.executable.ExecutableMavenJar</mainClass>
                                 </transformer>
                             </transformers>
@@ -170,7 +169,6 @@
         <guava.version>21.0</guava.version>
         <commons-lang3.version>3.5</commons-lang3.version>
         <commons-math3.version>3.6.1</commons-math3.version>
-        <commons-io.version>2.5</commons-io.version>
         <commons-collections4.version>4.1</commons-collections4.version>
         <collections-generic.version>4.01</collections-generic.version>
         <!-- testing -->

core-java-io/pom.xml

@@ -1,5 +1,5 @@
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    xsi: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-io</artifactId>
@@ -10,8 +10,8 @@
     <parent>
         <groupId>com.baeldung</groupId>
         <artifactId>parent-java</artifactId>
-    	<version>0.0.1-SNAPSHOT</version>
+        <version>0.0.1-SNAPSHOT</version>
-    	<relativePath>../parent-java</relativePath>
+        <relativePath>../parent-java</relativePath>
     </parent>
 
     <dependencies>
@@ -74,23 +74,6 @@
             <artifactId>log4j</artifactId>
             <version>${log4j.version}</version>
         </dependency>
-        <dependency>
-            <groupId>org.slf4j</groupId>
-            <artifactId>slf4j-api</artifactId>
-            <version>${org.slf4j.version}</version>
-        </dependency>
-        <dependency>
-            <groupId>ch.qos.logback</groupId>
-            <artifactId>logback-classic</artifactId>
-            <version>${logback.version}</version>
-            <!-- <scope>runtime</scope> -->
-        </dependency>
-        <dependency>
-            <groupId>org.slf4j</groupId>
-            <artifactId>jcl-over-slf4j</artifactId>
-            <version>${org.slf4j.version}</version>
-            <!-- <scope>runtime</scope> --> <!-- some spring dependencies need to compile against jcl -->
-        </dependency>
         <dependency> <!-- needed to bridge to slf4j for projects that use the log4j APIs directly -->
             <groupId>org.slf4j</groupId>
             <artifactId>log4j-over-slf4j</artifactId>
@@ -103,42 +86,12 @@
             <scope>provided</scope>
         </dependency>
         <!-- test scoped -->
-        <dependency>
-            <groupId>org.hamcrest</groupId>
-            <artifactId>hamcrest-all</artifactId>
-            <version>${hamcrest-all.version}</version>
-            <scope>test</scope>
-        </dependency>
-        <dependency>
-            <groupId>junit</groupId>
-            <artifactId>junit</artifactId>
-            <version>${junit.version}</version>
-            <scope>test</scope>
-        </dependency>
-        <dependency>
-            <groupId>org.hamcrest</groupId>
-            <artifactId>hamcrest-core</artifactId>
-            <version>${org.hamcrest.version}</version>
-            <scope>test</scope>
-        </dependency>
-        <dependency>
-            <groupId>org.hamcrest</groupId>
-            <artifactId>hamcrest-library</artifactId>
-            <version>${org.hamcrest.version}</version>
-            <scope>test</scope>
-        </dependency>
         <dependency>
             <groupId>org.assertj</groupId>
             <artifactId>assertj-core</artifactId>
             <version>${assertj.version}</version>
             <scope>test</scope>
         </dependency>
-        <dependency>
-            <groupId>org.mockito</groupId>
-            <artifactId>mockito-core</artifactId>
-            <version>${mockito.version}</version>
-            <scope>test</scope>
-        </dependency>
         <dependency>
             <groupId>com.jayway.awaitility</groupId>
             <artifactId>awaitility</artifactId>
@@ -253,7 +206,7 @@
                         <argument>-Xmx300m</argument>
                         <argument>-XX:+UseParallelGC</argument>
                         <argument>-classpath</argument>
-                        <classpath/>
+                        <classpath />
                         <argument>com.baeldung.outofmemoryerror.OutOfMemoryGCLimitExceed</argument>
                     </arguments>
                 </configuration>
@@ -318,7 +271,7 @@
                                     <executable>java</executable>
                                     <arguments>
                                         <argument>-classpath</argument>
-                                        <classpath/>
+                                        <classpath />
                                         <argument>org.openjdk.jmh.Main</argument>
                                         <argument>.*</argument>
                                     </arguments>
@@ -335,18 +288,12 @@
         <!-- marshalling -->
         <jackson.version>2.8.5</jackson.version>
 
-        <!-- logging -->
-        <org.slf4j.version>1.7.21</org.slf4j.version>
-        <logback.version>1.1.7</logback.version>
-
         <!-- util -->
-        <guava.version>22.0</guava.version>
         <commons-lang3.version>3.5</commons-lang3.version>
         <bouncycastle.version>1.55</bouncycastle.version>
         <commons-codec.version>1.10</commons-codec.version>
         <commons-math3.version>3.6.1</commons-math3.version>
         <decimal4j.version>1.0.3</decimal4j.version>
-        <commons-io.version>2.5</commons-io.version>
         <commons-collections4.version>4.1</commons-collections4.version>
         <collections-generic.version>4.01</collections-generic.version>
         <unix4j.version>0.4</unix4j.version>
@@ -358,15 +305,10 @@
         <vavr.version>0.9.0</vavr.version>
 
         <!-- testing -->
-        <org.hamcrest.version>1.3</org.hamcrest.version>
-        <junit.version>4.12</junit.version>
-        <mockito.version>2.8.9</mockito.version>
         <assertj.version>3.6.1</assertj.version>
         <avaitility.version>1.7.0</avaitility.version>
 
         <!-- maven plugins -->
-        <maven-compiler-plugin.version>3.7.0</maven-compiler-plugin.version>
-        <maven-surefire-plugin.version>2.19.1</maven-surefire-plugin.version>
         <maven.compiler.source>1.8</maven.compiler.source>
         <maven.compiler.target>1.8</maven.compiler.target>
         <maven-javadoc-plugin.version>3.0.0-M1</maven-javadoc-plugin.version>

core-java-sun/pom.xml

@@ -1,4 +1,5 @@
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.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>core-java-sun</artifactId>
@@ -9,8 +10,8 @@
     <parent>
         <groupId>com.baeldung</groupId>
         <artifactId>parent-java</artifactId>
-    	<version>0.0.1-SNAPSHOT</version>
+        <version>0.0.1-SNAPSHOT</version>
-    	<relativePath>../parent-java</relativePath>
+        <relativePath>../parent-java</relativePath>
     </parent>
 
     <dependencies>
@@ -73,23 +74,6 @@
             <artifactId>log4j</artifactId>
             <version>${log4j.version}</version>
         </dependency>
-        <dependency>
-            <groupId>org.slf4j</groupId>
-            <artifactId>slf4j-api</artifactId>
-            <version>${org.slf4j.version}</version>
-        </dependency>
-        <dependency>
-            <groupId>ch.qos.logback</groupId>
-            <artifactId>logback-classic</artifactId>
-            <version>${logback.version}</version>
-            <!-- <scope>runtime</scope> -->
-        </dependency>
-        <dependency>
-            <groupId>org.slf4j</groupId>
-            <artifactId>jcl-over-slf4j</artifactId>
-            <version>${org.slf4j.version}</version>
-            <!-- <scope>runtime</scope> --> <!-- some spring dependencies need to compile against jcl -->
-        </dependency>
         <dependency> <!-- needed to bridge to slf4j for projects that use the log4j APIs directly -->
             <groupId>org.slf4j</groupId>
             <artifactId>log4j-over-slf4j</artifactId>
@@ -102,42 +86,12 @@
             <scope>provided</scope>
         </dependency>
         <!-- test scoped -->
-        <dependency>
-            <groupId>org.hamcrest</groupId>
-            <artifactId>hamcrest-all</artifactId>
-            <version>${hamcrest-all.version}</version>
-            <scope>test</scope>
-        </dependency>
-        <dependency>
-            <groupId>junit</groupId>
-            <artifactId>junit</artifactId>
-            <version>${junit.version}</version>
-            <scope>test</scope>
-        </dependency>
-        <dependency>
-            <groupId>org.hamcrest</groupId>
-            <artifactId>hamcrest-core</artifactId>
-            <version>${org.hamcrest.version}</version>
-            <scope>test</scope>
-        </dependency>
-        <dependency>
-            <groupId>org.hamcrest</groupId>
-            <artifactId>hamcrest-library</artifactId>
-            <version>${org.hamcrest.version}</version>
-            <scope>test</scope>
-        </dependency>
         <dependency>
             <groupId>org.assertj</groupId>
             <artifactId>assertj-core</artifactId>
             <version>${assertj.version}</version>
             <scope>test</scope>
         </dependency>
-        <dependency>
-            <groupId>org.mockito</groupId>
-            <artifactId>mockito-core</artifactId>
-            <version>${mockito.version}</version>
-            <scope>test</scope>
-        </dependency>
         <dependency>
             <groupId>com.jayway.awaitility</groupId>
             <artifactId>awaitility</artifactId>
@@ -325,7 +279,7 @@
                         <argument>-Xmx300m</argument>
                         <argument>-XX:+UseParallelGC</argument>
                         <argument>-classpath</argument>
-                        <classpath/>
+                        <classpath />
                         <argument>com.baeldung.outofmemoryerror.OutOfMemoryGCLimitExceed</argument>
                     </arguments>
                 </configuration>
@@ -381,7 +335,7 @@
                                     <executable>java</executable>
                                     <arguments>
                                         <argument>-classpath</argument>
-                                        <classpath/>
+                                        <classpath />
                                         <argument>org.openjdk.jmh.Main</argument>
                                         <argument>.*</argument>
                                     </arguments>
@@ -398,10 +352,6 @@
         <!-- marshalling -->
         <jackson.version>2.8.5</jackson.version>
 
-        <!-- logging -->
-        <org.slf4j.version>1.7.21</org.slf4j.version>
-        <logback.version>1.1.7</logback.version>
-
         <!-- util -->
         <guava.version>23.0</guava.version>
         <commons-lang3.version>3.5</commons-lang3.version>
@@ -409,7 +359,6 @@
         <commons-codec.version>1.10</commons-codec.version>
         <commons-math3.version>3.6.1</commons-math3.version>
         <decimal4j.version>1.0.3</decimal4j.version>
-        <commons-io.version>2.5</commons-io.version>
         <commons-collections4.version>4.1</commons-collections4.version>
         <collections-generic.version>4.01</collections-generic.version>
         <unix4j.version>0.4</unix4j.version>
@@ -421,13 +370,10 @@
         <vavr.version>0.9.0</vavr.version>
 
         <!-- testing -->
-        <org.hamcrest.version>1.3</org.hamcrest.version>
-        <mockito.version>2.8.9</mockito.version>
         <assertj.version>3.6.1</assertj.version>
         <avaitility.version>1.7.0</avaitility.version>
 
         <!-- maven plugins -->
-        <maven-compiler-plugin.version>3.7.0</maven-compiler-plugin.version>
         <maven-surefire-plugin.version>2.19.1</maven-surefire-plugin.version>
         <sun-tools.version>1.8.0</sun-tools.version>
         <spring-web.version>4.3.4.RELEASE</spring-web.version>

core-java/pom.xml

@@ -1,5 +1,5 @@
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    xsi: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</artifactId>
@@ -68,23 +68,6 @@
             <artifactId>log4j</artifactId>
             <version>${log4j.version}</version>
         </dependency>
-        <dependency>
-            <groupId>org.slf4j</groupId>
-            <artifactId>slf4j-api</artifactId>
-            <version>${org.slf4j.version}</version>
-        </dependency>
-        <dependency>
-            <groupId>ch.qos.logback</groupId>
-            <artifactId>logback-classic</artifactId>
-            <version>${logback.version}</version>
-            <!-- <scope>runtime</scope> -->
-        </dependency>
-        <dependency>
-            <groupId>org.slf4j</groupId>
-            <artifactId>jcl-over-slf4j</artifactId>
-            <version>${org.slf4j.version}</version>
-            <!-- <scope>runtime</scope> --> <!-- some spring dependencies need to compile against jcl -->
-        </dependency>
         <dependency> <!-- needed to bridge to slf4j for projects that use the log4j APIs directly -->
             <groupId>org.slf4j</groupId>
             <artifactId>log4j-over-slf4j</artifactId>
@@ -97,42 +80,12 @@
             <scope>provided</scope>
         </dependency>
         <!-- test scoped -->
-        <dependency>
-            <groupId>org.hamcrest</groupId>
-            <artifactId>hamcrest-all</artifactId>
-            <version>${hamcrest-all.version}</version>
-            <scope>test</scope>
-        </dependency>
-        <dependency>
-            <groupId>junit</groupId>
-            <artifactId>junit</artifactId>
-            <version>${junit.version}</version>
-            <scope>test</scope>
-        </dependency>
-        <dependency>
-            <groupId>org.hamcrest</groupId>
-            <artifactId>hamcrest-core</artifactId>
-            <version>${org.hamcrest.version}</version>
-            <scope>test</scope>
-        </dependency>
-        <dependency>
-            <groupId>org.hamcrest</groupId>
-            <artifactId>hamcrest-library</artifactId>
-            <version>${org.hamcrest.version}</version>
-            <scope>test</scope>
-        </dependency>
         <dependency>
             <groupId>org.assertj</groupId>
             <artifactId>assertj-core</artifactId>
             <version>${assertj.version}</version>
             <scope>test</scope>
         </dependency>
-        <dependency>
-            <groupId>org.mockito</groupId>
-            <artifactId>mockito-core</artifactId>
-            <version>${mockito.version}</version>
-            <scope>test</scope>
-        </dependency>
         <dependency>
             <groupId>commons-codec</groupId>
             <artifactId>commons-codec</artifactId>
@@ -197,7 +150,7 @@
             <groupId>javax.mail</groupId>
             <artifactId>mail</artifactId>
             <version>${javax.mail.version}</version>
-      </dependency>
+        </dependency>
         <dependency>
             <groupId>com.ibm.icu</groupId>
             <artifactId>icu4j</artifactId>
@@ -298,8 +251,7 @@
                         <configuration>
                             <shadedArtifactAttached>true</shadedArtifactAttached>
                             <transformers>
-                                <transformer
+                                <transformer implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
-                                        implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
                                     <mainClass>org.baeldung.executable.ExecutableMavenJar</mainClass>
                                 </transformer>
                             </transformers>
@@ -354,7 +306,7 @@
                         <argument>-Xmx300m</argument>
                         <argument>-XX:+UseParallelGC</argument>
                         <argument>-classpath</argument>
-                        <classpath/>
+                        <classpath />
                         <argument>com.baeldung.outofmemoryerror.OutOfMemoryGCLimitExceed</argument>
                     </arguments>
                 </configuration>
@@ -406,7 +358,6 @@
                     <plugin>
                         <groupId>org.codehaus.mojo</groupId>
                         <artifactId>exec-maven-plugin</artifactId>
-
                         <executions>
                             <execution>
                                 <id>run-benchmarks</id>
@@ -420,7 +371,7 @@
                                     <executable>java</executable>
                                     <arguments>
                                         <argument>-classpath</argument>
-                                        <classpath/>
+                                        <classpath />
                                         <argument>org.openjdk.jmh.Main</argument>
                                         <argument>.*</argument>
                                     </arguments>
@@ -438,18 +389,12 @@
         <jackson.version>2.8.5</jackson.version>
         <gson.version>2.8.2</gson.version>
 
-        <!-- logging -->
-        <org.slf4j.version>1.7.21</org.slf4j.version>
-        <logback.version>1.1.7</logback.version>
-        <log4j.version>1.2.17</log4j.version>
-
         <!-- util -->
         <commons-lang3.version>3.5</commons-lang3.version>
         <bouncycastle.version>1.55</bouncycastle.version>
         <commons-codec.version>1.10</commons-codec.version>
         <commons-math3.version>3.6.1</commons-math3.version>
         <decimal4j.version>1.0.3</decimal4j.version>
-        <commons-io.version>2.5</commons-io.version>
         <unix4j.version>0.4</unix4j.version>
         <grep4j.version>1.8.7</grep4j.version>
         <lombok.version>1.16.12</lombok.version>
@@ -459,23 +404,18 @@
         <vavr.version>0.9.0</vavr.version>
 
         <!-- testing -->
-        <org.hamcrest.version>1.3</org.hamcrest.version>
-        <mockito.version>2.8.9</mockito.version>
         <assertj.version>3.6.1</assertj.version>
 
         <!-- maven plugins -->
-        <maven-compiler-plugin.version>3.7.0</maven-compiler-plugin.version>
         <maven-surefire-plugin.version>2.19.1</maven-surefire-plugin.version>
         <springframework.spring-web.version>4.3.4.RELEASE</springframework.spring-web.version>
         <springframework.boot.spring-boot-starter.version>1.5.8.RELEASE</springframework.boot.spring-boot-starter.version>
         <javamoney.moneta.version>1.1</javamoney.moneta.version>
-        <hamcrest-all.version>1.3</hamcrest-all.version>
         <h2database.version>1.4.197</h2database.version>
         <esapi.version>2.1.0.1</esapi.version>
         <jmh-core.version>1.19</jmh-core.version>
         <jmh-generator-annprocess.version>1.19</jmh-generator-annprocess.version>
         <maven-javadoc-plugin.version>3.0.0-M1</maven-javadoc-plugin.version>
-        <exec-maven-plugin.version>1.6.0</exec-maven-plugin.version>
         <javax.mail.version>1.5.0-b01</javax.mail.version>
         <maven-jar-plugin.version>3.0.2</maven-jar-plugin.version>
         <onejar-maven-plugin.version>1.4.4</onejar-maven-plugin.version>

core-kotlin/pom.xml

@@ -143,8 +143,8 @@
                 <artifactId>maven-compiler-plugin</artifactId>
                 <version>${maven-compiler-plugin.version}</version>
                 <configuration>
-                    <source>${maven.compiler.source}</source>
+                    <source>${java.version}</source>
-                    <target>${maven.compiler.target}</target>
+                    <target>${java.version}</target>
                 </configuration>
                 <executions>
                     <!-- Replacing default-compile as it is treated specially 
@@ -204,7 +204,6 @@
     </build>
 
     <properties>
-        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <kotlin-maven-plugin.version>1.2.41</kotlin-maven-plugin.version>
         <kotlin-test-junit.version>1.2.41</kotlin-test-junit.version>
         <kotlin-stdlib.version>1.2.41</kotlin-stdlib.version>
@@ -213,16 +212,11 @@
         <mockito-kotlin.version>1.5.0</mockito-kotlin.version>
         <kodein.version>4.1.0</kodein.version>
         <klaxon.version>3.0.4</klaxon.version>
-        <maven-failsafe-plugin.version>2.21.0</maven-failsafe-plugin.version>
         <khttp.version>0.1.0</khttp.version>
         <commons-math3.version>3.6.1</commons-math3.version>
-        <junit.jupiter.version>5.2.0</junit.jupiter.version>
         <junit.platform.version>1.2.0</junit.platform.version>
         <junit.vintage.version>5.2.0</junit.vintage.version>
-        <junit4.version>4.12</junit4.version>
         <assertj.version>3.10.0</assertj.version>
-        <maven.compiler.source>1.8</maven.compiler.source>
-        <maven.compiler.target>1.8</maven.compiler.target>
     </properties>
 
 </project>

couchbase/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</groupId>
     <artifactId>couchbase-sdk</artifactId>
@@ -67,8 +67,6 @@
     </dependencies>
 
     <properties>
-        <java.version>1.8</java.version>
-        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <couchbase.client.version>2.5.0</couchbase.client.version>
         <spring-framework.version>4.3.5.RELEASE</spring-framework.version>
         <commons-lang3.version>3.5</commons-lang3.version>

custom-pmd/pom.xml

@@ -1,5 +1,5 @@
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    xsi: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>

dagger/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>dagger</artifactId>
     <name>dagger</name>
@@ -11,43 +12,35 @@
     </parent>
 
     <dependencies>
-        <dependency>
-            <groupId>junit</groupId>
-            <artifactId>junit</artifactId>
-            <version>${junit.version}</version>
-            <scope>test</scope>
-        </dependency>
-        
         <!-- Dagger 2 -->
         <dependency>
-    		<groupId>com.google.dagger</groupId>
+            <groupId>com.google.dagger</groupId>
-    		<artifactId>dagger</artifactId>
+            <artifactId>dagger</artifactId>
-    		<version>${dagger.version}</version>
+            <version>${dagger.version}</version>
-  		</dependency>
+        </dependency>
     </dependencies>
 
     <build>
         <plugins>
             <!-- Annotation processor for Dagger 2 -->
-             <plugin>
+            <plugin>
-     		 	<groupId>org.apache.maven.plugins</groupId>
+                <groupId>org.apache.maven.plugins</groupId>
-      			<artifactId>maven-compiler-plugin</artifactId>
+                <artifactId>maven-compiler-plugin</artifactId>
-      			<version>3.6.1</version>
+                <version>${maven-compiler-plugin.version}</version>
-      			<configuration>
+                <configuration>
-        			<annotationProcessorPaths>
+                    <annotationProcessorPaths>
-          				<path>
+                        <path>
-            				<groupId>com.google.dagger</groupId>
+                            <groupId>com.google.dagger</groupId>
-            				<artifactId>dagger-compiler</artifactId>
+                            <artifactId>dagger-compiler</artifactId>
-            				<version>2.16</version>
+                            <version>${dagger.version}</version>
-          				</path>
+                        </path>
-        			</annotationProcessorPaths>
+                    </annotationProcessorPaths>
-      			</configuration>
+                </configuration>
-    		</plugin>
+            </plugin>
         </plugins>
     </build>
 
     <properties>
-        <junit.version>4.12</junit.version>
         <dagger.version>2.16</dagger.version>
     </properties>
 

data-structures/pom.xml

@@ -1,5 +1,5 @@
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    xsi: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>data-structures</artifactId>

deeplearning4j/pom.xml

@@ -1,5 +1,5 @@
 <project xmlns="http://maven.apache.org/POM/4.0.0" 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>
@@ -27,7 +27,6 @@
     </dependencies>
 
     <properties>
-        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <dl4j.version>0.9.1</dl4j.version>
     </properties>
 

deltaspike/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</groupId>
     <artifactId>deltaspike</artifactId>
@@ -16,93 +16,39 @@
         <version>1.0.0-SNAPSHOT</version>
     </parent>
 
-    <licenses>
-        <license>
-            <name>Apache License, Version 2.0</name>
-            <distribution>repo</distribution>
-            <url>http://www.apache.org/licenses/LICENSE-2.0.html</url>
-        </license>
-    </licenses>
-    <repositories>
-        <repository>
-            <id>redhat-repository-techpreview</id>
-            <url>https://maven.repository.redhat.com/techpreview/all/</url>
-        </repository>
-    </repositories>
-
-    <dependencyManagement>
-        <dependencies>
-            <!-- JBoss distributes a complete set of Java EE 7 APIs including a Bill
-                of Materials (BOM). A BOM specifies the versions of a "stack" (or a collection)
-                of artifacts. We use this here so that we always get the correct versions
-                of artifacts. Here we use the jboss-javaee-7.0-with-tools stack (you can
-                read this as the JBoss stack of the Java EE 7 APIs, with some extras tools
-                for your project, such as Arquillian for testing) and the jboss-javaee-7.0-with-hibernate
-                stack you can read this as the JBoss stack of the Java EE 7 APIs, with extras
-                from the Hibernate family of projects) -->
-            <dependency>
-                <groupId>org.wildfly.bom</groupId>
-                <artifactId>jboss-javaee-7.0-with-tools</artifactId>
-                <version>${jboss.bom.version}</version>
-                <type>pom</type>
-                <scope>import</scope>
-            </dependency>
-            <dependency>
-                <groupId>org.wildfly.bom</groupId>
-                <artifactId>jboss-javaee-7.0-with-hibernate</artifactId>
-                <version>${jboss.bom.version}</version>
-                <type>pom</type>
-                <scope>import</scope>
-            </dependency>
-            <dependency>
-                <groupId>org.apache.deltaspike.distribution</groupId>
-                <artifactId>distributions-bom</artifactId>
-                <version>${deltaspike.version}</version>
-                <type>pom</type>
-                <scope>import</scope>
-            </dependency>
-        </dependencies>
-    </dependencyManagement>
-
     <dependencies>
 
-        <!-- First declare the APIs we depend on and need for compilation. All
+        <!-- First declare the APIs we depend on and need for compilation. All of them are provided by JBoss WildFly -->
-            of them are provided by JBoss WildFly -->
 
-        <!-- Import the CDI API, we use provided scope as the API is included in
+        <!-- Import the CDI API, we use provided scope as the API is included in JBoss WildFly -->
-            JBoss WildFly -->
         <dependency>
             <groupId>javax.enterprise</groupId>
             <artifactId>cdi-api</artifactId>
             <scope>provided</scope>
         </dependency>
 
-        <!-- Import the Common Annotations API (JSR-250), we use provided scope
+        <!-- Import the Common Annotations API (JSR-250), we use provided scope as the API is included in JBoss WildFly -->
-            as the API is included in JBoss WildFly -->
         <dependency>
             <groupId>org.jboss.spec.javax.annotation</groupId>
             <artifactId>jboss-annotations-api_1.2_spec</artifactId>
             <scope>provided</scope>
         </dependency>
 
-        <!-- Import the JAX-RS API, we use provided scope as the API is included
+        <!-- Import the JAX-RS API, we use provided scope as the API is included in JBoss WildFly -->
-            in JBoss WildFly -->
         <dependency>
             <groupId>org.jboss.resteasy</groupId>
             <artifactId>jaxrs-api</artifactId>
             <scope>provided</scope>
         </dependency>
 
-        <!-- Import the JPA API, we use provided scope as the API is included in
+        <!-- Import the JPA API, we use provided scope as the API is included in JBoss WildFly -->
-            JBoss WildFly -->
         <dependency>
             <groupId>org.hibernate.javax.persistence</groupId>
             <artifactId>hibernate-jpa-2.1-api</artifactId>
             <scope>provided</scope>
         </dependency>
 
-        <!-- Import the EJB API, we use provided scope as the API is included in
+        <!-- Import the EJB API, we use provided scope as the API is included in JBoss WildFly -->
-            JBoss WildFly -->
         <dependency>
             <groupId>org.jboss.spec.javax.ejb</groupId>
             <artifactId>jboss-ejb-api_3.2_spec</artifactId>
@@ -124,8 +70,7 @@
             </exclusions>
         </dependency>
 
-        <!-- Import the JSF API, we use provided scope as the API is included in
+        <!-- Import the JSF API, we use provided scope as the API is included in JBoss WildFly -->
-            JBoss WildFly -->
         <dependency>
             <groupId>org.jboss.spec.javax.faces</groupId>
             <artifactId>jboss-jsf-api_2.2_spec</artifactId>
@@ -134,16 +79,14 @@
 
         <!-- Now we declare any tools needed -->
 
-        <!-- Annotation processor to generate the JPA 2.0 metamodel classes for
+        <!-- Annotation processor to generate the JPA 2.0 metamodel classes for typesafe criteria queries -->
-            typesafe criteria queries -->
         <dependency>
             <groupId>org.hibernate</groupId>
             <artifactId>hibernate-jpamodelgen</artifactId>
             <scope>provided</scope>
         </dependency>
 
-        <!-- Annotation processor that raising compilation errors whenever constraint
+        <!-- Annotation processor that raising compilation errors whenever constraint annotations are incorrectly used. -->
-            annotations are incorrectly used. -->
         <dependency>
             <groupId>org.hibernate</groupId>
             <artifactId>hibernate-validator-annotation-processor</artifactId>
@@ -151,8 +94,7 @@
         </dependency>
 
         <!-- Optional, but highly recommended -->
-        <!-- Arquillian allows you to test enterprise code such as EJBs and Transactional(JTA)
+        <!-- Arquillian allows you to test enterprise code such as EJBs and Transactional(JTA) JPA from JUnit/TestNG -->
-            JPA from JUnit/TestNG -->
         <dependency>
             <groupId>org.jboss.arquillian.junit</groupId>
             <artifactId>arquillian-junit-container</artifactId>
@@ -231,13 +173,13 @@
         <dependency>
             <groupId>org.jboss</groupId>
             <artifactId>jandex</artifactId>
-            <version>1.2.5.Final-redhat-1</version>
+            <version>${jandex.version}</version>
         </dependency>
 
         <dependency>
             <groupId>com.h2database</groupId>
             <artifactId>h2</artifactId>
-            <version>1.4.197</version>
+            <version>${h2.version}</version>
             <scope>test</scope>
         </dependency>
 
@@ -258,14 +200,13 @@
         <dependency>
             <groupId>org.apache.commons</groupId>
             <artifactId>commons-lang3</artifactId>
-            <version>3.5</version>
+            <version>${commons-lang3.version}</version>
         </dependency>
 
     </dependencies>
 
     <build>
-        <!-- Maven will append the version to the finalName (which is the name
+        <!-- Maven will append the version to the finalName (which is the name given to the generated war, and hence the context root) -->
-            given to the generated war, and hence the context root) -->
         <finalName>${project.artifactId}</finalName>
         <plugins>
             <plugin>
@@ -305,10 +246,8 @@
     <profiles>
         <profile>
 
-            <!-- An optional Arquillian testing profile that executes tests in your
+            <!-- An optional Arquillian testing profile that executes tests in your WildFly instance -->
-                WildFly instance -->
+            <!-- This profile will start a new WildFly instance, and execute the test, shutting it down when done -->
-            <!-- This profile will start a new WildFly instance, and execute the test,
-                shutting it down when done -->
             <!-- Run with: mvn clean test -Parq-wildfly-managed -->
             <id>arq-wildfly-managed</id>
             <dependencies>
@@ -321,25 +260,64 @@
         </profile>
     </profiles>
 
+    <licenses>
+        <license>
+            <name>Apache License, Version 2.0</name>
+            <distribution>repo</distribution>
+            <url>http://www.apache.org/licenses/LICENSE-2.0.html</url>
+        </license>
+    </licenses>
+    <repositories>
+        <repository>
+            <id>redhat-repository-techpreview</id>
+            <url>https://maven.repository.redhat.com/techpreview/all/</url>
+        </repository>
+    </repositories>
+
+    <dependencyManagement>
+        <dependencies>
+            <!-- JBoss distributes a complete set of Java EE 7 APIs including a Bill of Materials (BOM). A BOM specifies the versions of a "stack" (or a collection) of artifacts. We 
+                use this here so that we always get the correct versions of artifacts. Here we use the jboss-javaee-7.0-with-tools stack (you can read this as the JBoss stack of the Java EE 7 APIs, 
+                with some extras tools for your project, such as Arquillian for testing) and the jboss-javaee-7.0-with-hibernate stack you can read this as the JBoss stack of the Java EE 7 APIs, with 
+                extras from the Hibernate family of projects) -->
+            <dependency>
+                <groupId>org.wildfly.bom</groupId>
+                <artifactId>jboss-javaee-7.0-with-tools</artifactId>
+                <version>${jboss.bom.version}</version>
+                <type>pom</type>
+                <scope>import</scope>
+            </dependency>
+            <dependency>
+                <groupId>org.wildfly.bom</groupId>
+                <artifactId>jboss-javaee-7.0-with-hibernate</artifactId>
+                <version>${jboss.bom.version}</version>
+                <type>pom</type>
+                <scope>import</scope>
+            </dependency>
+            <dependency>
+                <groupId>org.apache.deltaspike.distribution</groupId>
+                <artifactId>distributions-bom</artifactId>
+                <version>${deltaspike.version}</version>
+                <type>pom</type>
+                <scope>import</scope>
+            </dependency>
+        </dependencies>
+    </dependencyManagement>
+
     <properties>
-        <!-- Explicitly declaring the source encoding eliminates the following
-            message: -->
-        <!-- [WARNING] Using platform encoding (UTF-8 actually) to copy filtered
-            resources, i.e. build is platform dependent! -->
-        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <querydsl.version>3.7.4</querydsl.version>
         <deltaspike.version>1.8.2</deltaspike.version>
         <!-- JBoss dependency versions -->
         <wildfly.maven.plugin.version>1.0.2.Final</wildfly.maven.plugin.version>
-        <!-- Define the version of the JBoss BOMs we want to import to specify
+        <!-- Define the version of the JBoss BOMs we want to import to specify tested stacks. -->
-            tested stacks. -->
         <jboss.bom.version>8.2.1.Final</jboss.bom.version>
         <weld.version>2.1.2.Final</weld.version>
         <!-- other plugin versions -->
         <war.plugin.version>2.6</war.plugin.version>
         <apt-maven-plugin.version>1.1.3</apt-maven-plugin.version>
-        <maven.compiler.target>1.8</maven.compiler.target>
+        <jandex.version>1.2.5.Final-redhat-1</jandex.version>
-        <maven.compiler.source>1.8</maven.compiler.source>
+        <h2.version>1.4.197</h2.version>
+        <commons-lang3.version>3.5</commons-lang3.version>
     </properties>
 
 </project>

disruptor/pom.xml

@@ -1,5 +1,5 @@
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    xsi: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>disruptor</artifactId>
@@ -99,8 +99,7 @@
                         <configuration>
                             <shadedArtifactAttached>true</shadedArtifactAttached>
                             <transformers>
-                                <transformer
+                                <transformer implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
-                                        implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
                                     <mainClass>org.baeldung.executable.ExecutableMavenJar</mainClass>
                                 </transformer>
                             </transformers>

dozer/pom.xml

@@ -1,5 +1,5 @@
 <project xmlns="http://maven.apache.org/POM/4.0.0" 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>dozer</artifactId>

drools/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>drools</artifactId>
 
     <parent>
-		<groupId>com.baeldung</groupId>
+        <groupId>com.baeldung</groupId>
-		<artifactId>parent-spring-4</artifactId>
+        <artifactId>parent-spring-4</artifactId>
-		<version>0.0.1-SNAPSHOT</version>
+        <version>0.0.1-SNAPSHOT</version>
-		<relativePath>../parent-spring-4</relativePath>
+        <relativePath>../parent-spring-4</relativePath>
-	</parent>
+    </parent>
 
     <dependencies>
         <dependency>

dubbo/pom.xml

@@ -1,5 +1,5 @@
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    xsi:schemaLocation="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>
 
@@ -15,12 +15,6 @@
             <artifactId>dubbo</artifactId>
             <version>${dubbo.version}</version>
         </dependency>
-        <dependency>
-            <groupId>junit</groupId>
-            <artifactId>junit</artifactId>
-            <version>${junit.version}</version>
-            <scope>test</scope>
-        </dependency>
         <dependency>
             <groupId>org.apache.zookeeper</groupId>
             <artifactId>zookeeper</artifactId>
@@ -34,9 +28,6 @@
     </dependencies>
 
     <properties>
-        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
-        <java.version>1.8</java.version>
         <dubbo.version>2.5.7</dubbo.version>
         <zookeeper.version>3.4.11</zookeeper.version>
         <zkclient.version>0.10</zkclient.version>

ejb/ejb-client/pom.xml

@@ -1,6 +1,6 @@
 <?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>
     <artifactId>ejb-client</artifactId>
     <description>EJB3 Client Maven</description>

ejb/ejb-remote/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>ejb-remote</artifactId>
     <packaging>ejb</packaging>
@@ -57,7 +57,7 @@
             </build>
         </profile>
 
-        <!--mvn clean install wildfly:deploy -Pwildfly-runtime-->
+        <!--mvn clean install wildfly:deploy -Pwildfly-runtime -->
         <profile>
             <id>wildfly-runtime</id>
             <activation>

ejb/ejb-session-beans/pom.xml

@@ -13,7 +13,7 @@
             <dependency>
                 <groupId>org.jboss.arquillian</groupId>
                 <artifactId>arquillian-bom</artifactId>
-                <version>1.1.13.Final</version>
+                <version>${arquillian-bom.version}</version>
                 <scope>import</scope>
                 <type>pom</type>
             </dependency>
@@ -27,12 +27,6 @@
             <version>${javaee-api.version}</version>
             <scope>provided</scope>
         </dependency>
-        <dependency>
-            <groupId>junit</groupId>
-            <artifactId>junit</artifactId>
-            <version>${junit.version}</version>
-            <scope>test</scope>
-        </dependency>
         <dependency>
             <groupId>org.jboss.arquillian.junit</groupId>
             <artifactId>arquillian-junit-container</artifactId>
@@ -56,7 +50,7 @@
                 <dependency>
                     <groupId>org.glassfish.main.extras</groupId>
                     <artifactId>glassfish-embedded-all</artifactId>
-                    <version>3.1.2</version>
+                    <version>${glassfish-embedded-all.version}</version>
                     <scope>test</scope>
                 </dependency>
             </dependencies>
@@ -67,7 +61,7 @@
         <plugins>
             <plugin>
                 <artifactId>maven-war-plugin</artifactId>
-                <version>2.4</version>
+                <version>${maven-war-plugin.version}</version>
                 <configuration>
                     <failOnMissingWebXml>false</failOnMissingWebXml>
                 </configuration>
@@ -77,13 +71,14 @@
 
     <properties>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-        <arquillian-bom.version>1.1.12.Final</arquillian-bom.version>
+        <arquillian-bom.version>1.1.13.Final</arquillian-bom.version>
         <shrinkwrap-resolver-impl-maven.version>2.2.6</shrinkwrap-resolver-impl-maven.version>
         <arquillian-junit-container.version>1.1.12.Final</arquillian-junit-container.version>
         <arquillian-glassfish-embedded-3.1.version>1.0.0.Final</arquillian-glassfish-embedded-3.1.version>
         <junit.version>4.12</junit.version>
         <javaee-api.version>7.0</javaee-api.version>
         <arquillian-glassfish-embedded-3.1.version>1.0.0.CR4</arquillian-glassfish-embedded-3.1.version>
+        <glassfish-embedded-all.version>3.1.2</glassfish-embedded-all.version>
     </properties>
 
 </project>

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.ejb</groupId>
     <artifactId>ejb</artifactId>
@@ -83,9 +83,6 @@
     </repositories>
 
     <properties>
-        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
-        <java.version>1.8</java.version>
         <dubbo.version>2.5.7</dubbo.version>
         <zookeeper.version>3.4.11</zookeeper.version>
         <zkclient.version>0.10</zkclient.version>

ejb/wildfly/pom.xml

@@ -83,7 +83,6 @@
     <properties>
         <maven.compiler.source>1.8</maven.compiler.source>
         <maven.compiler.target>1.8</maven.compiler.target>
-        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <javaee-api.version>7.0</javaee-api.version>
         <wildfly-javaee7.version>10.1.0.Final</wildfly-javaee7.version>
         <hibernate-core.version>5.2.3.Final</hibernate-core.version>

ejb/wildfly/widlfly-web/pom.xml

@@ -1,5 +1,5 @@
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>widlfly-web</artifactId>
     <packaging>war</packaging>

ejb/wildfly/wildfly-ear/pom.xml

@@ -40,7 +40,7 @@
         <plugins>
             <plugin>
                 <artifactId>maven-ear-plugin</artifactId>
-                <version>2.10.1</version>
+                <version>${maven-ear-plugin.version}</version>
                 <configuration>
                     <defaultLibBundleDir>lib/</defaultLibBundleDir>
                     <version>7</version>
@@ -56,8 +56,13 @@
             <plugin>
                 <groupId>org.wildfly.plugins</groupId>
                 <artifactId>wildfly-maven-plugin</artifactId>
-                <version>1.2.0.Final</version>
+                <version>${wildfly-maven-plugin.version}</version>
             </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>

ejb/wildfly/wildfly-ejb-interfaces/pom.xml

@@ -1,5 +1,5 @@
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    xsi:schemaLocation="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>
 

ejb/wildfly/wildfly-ejb/pom.xml

@@ -15,7 +15,7 @@
         <dependency>
             <groupId>javax.ejb</groupId>
             <artifactId>javax.ejb-api</artifactId>
-            <version>3.2</version>
+            <version>${ejb.version}</version>
             <scope>provided</scope>
         </dependency>
         <!-- Dependency for java ee -->
@@ -42,9 +42,13 @@
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-ejb-plugin</artifactId>
                 <configuration>
-                    <ejbVersion>3.2</ejbVersion>
+                    <ejbVersion>${ejb.version}</ejbVersion>
                 </configuration>
             </plugin>
         </plugins>
     </build>
+    
+    <properties>
+        <ejb.version>3.2</ejb.version>
+    </properties>
 </project>

ejb/wildfly/wildfly-jpa/pom.xml

@@ -1,5 +1,5 @@
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    xsi:schemaLocation="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>
 

enterprise-patterns/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.enterprise.patterns</groupId>
     <artifactId>enterprise-patterns-parent</artifactId>

feign/pom.xml

@@ -1,7 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+<project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://maven.apache.org/POM/4.0.0"
-         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-client</artifactId>
@@ -55,7 +54,6 @@
     </build>
 
     <properties>
-        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <feign.version>9.4.0</feign.version>
         <lombok.version>1.16.12</lombok.version>
         <spring-boot-maven-plugin.version>1.4.2.RELEASE</spring-boot-maven-plugin.version>

flips/pom.xml

@@ -56,9 +56,6 @@
     </build>
 
     <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>
         <spring-boot-starter-web.version>1.5.10.RELEASE</spring-boot-starter-web.version>
         <spring-boot-starter-test.version>1.5.9.RELEASE</spring-boot-starter-test.version>
         <flips-web.version>1.0.1</flips-web.version>

flyway/pom.xml

@@ -27,7 +27,7 @@
         <dependency>
             <groupId>mysql</groupId>
             <artifactId>mysql-connector-java</artifactId>
-            <version>${mysql-connector-java.version}</version>
+            <scope>runtime</scope>
         </dependency>
         <dependency>
             <groupId>com.h2database</groupId>
@@ -63,11 +63,7 @@
     </build>
 
     <properties>
-        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
-        <java.version>1.8</java.version>
         <flyway-core.version>5.0.2</flyway-core.version>
-        <mysql-connector-java.version>6.0.3</mysql-connector-java.version>
         <flyway-maven-plugin.version>5.0.2</flyway-maven-plugin.version>
     </properties>
 

geotools/pom.xml

@@ -1,5 +1,5 @@
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    xsi: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>geotools</artifactId>
@@ -15,12 +15,6 @@
     </parent>
 
     <dependencies>
-        <dependency>
-            <groupId>junit</groupId>
-            <artifactId>junit</artifactId>
-            <version>${junit.version}</version>
-            <scope>test</scope>
-        </dependency>
         <dependency>
             <groupId>org.geotools</groupId>
             <artifactId>gt-shapefile</artifactId>

google-cloud/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>google-cloud</artifactId>
     <version>0.1-SNAPSHOT</version>
@@ -31,7 +31,6 @@
 
     <properties>
         <lombok.version>1.16.18</lombok.version>
-        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <google-cloud-storage.version>1.16.0</google-cloud-storage.version>
     </properties>
 

graphql/graphql-java/pom.xml

@@ -1,5 +1,5 @@
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    xsi: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>

grpc/pom.xml

@@ -1,5 +1,5 @@
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    xsi: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>grpc</groupId>
     <artifactId>grpc-demo</artifactId>
@@ -71,7 +71,6 @@
     </build>
 
     <properties>
-        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <io.grpc.version>1.5.0</io.grpc.version>
         <os-maven-plugin.version>1.5.0.Final</os-maven-plugin.version>
         <protobuf-maven-plugin.version>0.5.0</protobuf-maven-plugin.version>

gson/pom.xml

@@ -19,7 +19,7 @@
 		<dependency>
 			<groupId>org.projectlombok</groupId>
 			<artifactId>lombok</artifactId>
-			<version>1.16.10</version>
+			<version>${lombok.version}</version>
 			<scope>provided</scope>
 		</dependency>
 		<dependency>
@@ -64,11 +64,10 @@
 		<!-- marshalling -->
 		<gson.version>2.8.0</gson.version>
 		<!-- util -->
-		<guava.version>19.0</guava.version>
 		<commons-lang3.version>3.5</commons-lang3.version>
 		<commons-collections4.version>4.1</commons-collections4.version>
-		<commons-io.version>2.5</commons-io.version>
 		<joda-time.version>2.9.6</joda-time.version>
+        <lombok.version>1.16.10</lombok.version>
 	</properties>
 
 </project>

guava-modules/guava-18/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</groupId>
     <artifactId>guava-18</artifactId>
@@ -9,8 +9,8 @@
     <parent>
         <groupId>com.baeldung</groupId>
         <artifactId>parent-java</artifactId>
-    	<version>0.0.1-SNAPSHOT</version>
+        <version>0.0.1-SNAPSHOT</version>
-    	<relativePath>../../parent-java</relativePath>
+        <relativePath>../../parent-java</relativePath>
     </parent>
 
     <properties>

guava-modules/guava-19/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</groupId>
     <artifactId>guava-19</artifactId>
@@ -9,8 +9,8 @@
     <parent>
         <groupId>com.baeldung</groupId>
         <artifactId>parent-java</artifactId>
-    	<version>0.0.1-SNAPSHOT</version>
+        <version>0.0.1-SNAPSHOT</version>
-    	<relativePath>../../parent-java</relativePath>
+        <relativePath>../../parent-java</relativePath>
     </parent>
 
     <properties>

guava-modules/guava-21/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>guava-21</artifactId>
     <version>1.0-SNAPSHOT</version>
@@ -8,8 +8,8 @@
     <parent>
         <groupId>com.baeldung</groupId>
         <artifactId>parent-java</artifactId>
-    	<version>0.0.1-SNAPSHOT</version>
+        <version>0.0.1-SNAPSHOT</version>
-    	<relativePath>../../parent-java</relativePath>
+        <relativePath>../../parent-java</relativePath>
     </parent>
 
     <dependencies>

guava/pom.xml

@@ -1,5 +1,5 @@
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    xsi: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>guava</artifactId>
@@ -9,8 +9,8 @@
     <parent>
         <groupId>com.baeldung</groupId>
         <artifactId>parent-java</artifactId>
-    	<version>0.0.1-SNAPSHOT</version>
+        <version>0.0.1-SNAPSHOT</version>
-    	<relativePath>../parent-java</relativePath>
+        <relativePath>../parent-java</relativePath>
     </parent>
 
     <dependencies>

guest/core-java-9/pom.xml

@@ -1,4 +1,5 @@
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.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.stackify</groupId>
     <artifactId>core-java-9</artifactId>
@@ -11,14 +12,6 @@
         <relativePath>../../</relativePath>
     </parent>
 
-    <dependencies>
-        <dependency>
-            <groupId>junit</groupId>
-            <artifactId>junit</artifactId>
-            <version>${junit.version}</version>
-        </dependency>
-    </dependencies>
-
     <build>
         <plugins>
             <plugin>

guest/core-java/pom.xml

@@ -13,34 +13,11 @@
     </parent>
 
     <dependencies>
-        <dependency>
-            <groupId>junit</groupId>
-            <artifactId>junit</artifactId>
-            <version>${junit.version}</version>
-        </dependency>
         <dependency>
             <groupId>org.apache.logging.log4j</groupId>
             <artifactId>log4j-core</artifactId>
             <version>${log4j2.version}</version>
         </dependency>
-        <dependency>
-            <groupId>org.hamcrest</groupId>
-            <artifactId>hamcrest-core</artifactId>
-            <version>${org.hamcrest.version}</version>
-            <scope>test</scope>
-        </dependency>
-        <dependency>
-            <groupId>org.hamcrest</groupId>
-            <artifactId>hamcrest-library</artifactId>
-            <version>${org.hamcrest.version}</version>
-            <scope>test</scope>
-        </dependency>
-        <dependency>
-            <groupId>org.hamcrest</groupId>
-            <artifactId>hamcrest-all</artifactId>
-            <version>${org.hamcrest.version}</version>
-            <scope>test</scope>
-        </dependency>
         <dependency>
             <groupId>org.assertj</groupId>
             <artifactId>assertj-core</artifactId>
@@ -51,7 +28,6 @@
 
     <properties>
         <log4j2.version>2.8.2</log4j2.version>
-        <org.hamcrest.version>1.3</org.hamcrest.version>
         <assertj.version>3.6.1</assertj.version>
     </properties>
 

guest/deep-jsf/pom.xml

@@ -1,27 +1,24 @@
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    xsi: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>
     <packaging>war</packaging>
+    
     <parent>
         <groupId>com.baeldung</groupId>
         <artifactId>parent-modules</artifactId>
         <version>1.0.0-SNAPSHOT</version>
         <relativePath>../../</relativePath>
     </parent>
-    <properties>
-        <failOnMissingWebXml>false</failOnMissingWebXml>
-    </properties>
     
     <dependencies>
 
         <dependency>
             <groupId>javax</groupId>
             <artifactId>javaee-api</artifactId>
-            <version>7.0</version>
+            <version>${javaee-api.version}</version>
             <scope>provided</scope>
         </dependency>
 
@@ -31,4 +28,9 @@
         <finalName>deep-jsf</finalName>
     </build>
 
+    <properties>
+        <failOnMissingWebXml>false</failOnMissingWebXml>
+        <javaee-api.version>7.0</javaee-api.version>
+    </properties>
+
 </project>

guest/junit5-example/pom.xml

@@ -1,52 +1,50 @@
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    xsi: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>
+
     <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-params</artifactId>
-            <version>5.0.0-M4</version>
+            <version>${junit.jupiter.version}</version>
         </dependency>
-
         <dependency>
             <groupId>org.junit.vintage</groupId>
             <artifactId>junit-vintage-engine</artifactId>
-            <version>4.12.0-M4</version>
+            <version>${junit-vintage.version}</version>
         </dependency>
-
         <dependency>
             <groupId>com.h2database</groupId>
             <artifactId>h2</artifactId>
-            <version>1.4.195</version>
+            <version>${h2.version}</version>
         </dependency>
-
         <dependency>
             <groupId>org.apache.logging.log4j</groupId>
             <artifactId>log4j-core</artifactId>
-            <version>2.8.2</version>
+            <version>${log4j-core.version}</version>
         </dependency>
-
     </dependencies>
 
     <build>
         <plugins>
             <plugin>
                 <artifactId>maven-surefire-plugin</artifactId>
-                <version>2.19.1</version>
+                <version>${maven-surefire-plugin.version}</version>
                 <dependencies>
                     <dependency>
                         <groupId>org.junit.platform</groupId>
                         <artifactId>junit-platform-surefire-provider</artifactId>
-                        <version>1.0.0-M4</version>
+                        <version>${junit-platform-surefire-provider.version}</version>
                     </dependency>
                 </dependencies>
                 <configuration>
@@ -59,6 +57,10 @@
     </build>
 
     <properties>
-    	
+        <junit.jupiter.version>5.0.0-M4</junit.jupiter.version>
+        <junit-vintage.version>4.12.0-M4</junit-vintage.version>
+        <h2.version>1.4.195</h2.version>
+        <log4j-core.version>2.8.2</log4j-core.version>
+        <junit-platform-surefire-provider.version>1.0.0-M4</junit-platform-surefire-provider.version>
     </properties>
 </project>

guest/log4j2-example/pom.xml

@@ -1,15 +1,17 @@
 <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">
+    xsi: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>
+
     <parent>
         <groupId>com.baeldung</groupId>
         <artifactId>parent-modules</artifactId>
         <version>1.0.0-SNAPSHOT</version>
         <relativePath>../../</relativePath>
     </parent>
+
     <dependencies>
         <!-- This is the needed core component. -->
         <dependency>
@@ -24,12 +26,6 @@
             <artifactId>jackson-databind</artifactId>
             <version>${jackson.version}</version>
         </dependency>
-
-        <dependency>
-            <groupId>junit</groupId>
-            <artifactId>junit</artifactId>
-            <version>4.12</version>
-        </dependency>
     </dependencies>
 
     <build>

guest/logback-example/pom.xml

@@ -4,29 +4,23 @@
     <groupId>com.stackify</groupId>
     <artifactId>logback-example</artifactId>
     <version>0.0.1-SNAPSHOT</version>
+    
     <parent>
         <groupId>com.baeldung</groupId>
         <artifactId>parent-modules</artifactId>
         <version>1.0.0-SNAPSHOT</version>
         <relativePath>../../</relativePath>
     </parent>
+    
     <dependencies>
-        <dependency>
-            <groupId>ch.qos.logback</groupId>
-            <artifactId>logback-classic</artifactId>
-            <version>1.2.3</version>
-        </dependency>
-
-        <dependency>
-            <groupId>junit</groupId>
-            <artifactId>junit</artifactId>
-            <version>4.12</version>
-        </dependency>
-
         <dependency>
             <groupId>org.codehaus.janino</groupId>
             <artifactId>janino</artifactId>
-            <version>3.0.7</version>
+            <version>${janino.version}</version>
         </dependency>
     </dependencies>
+    
+    <properties>
+        <janino.version>3.0.7</janino.version>
+    </properties>
 </project>

guest/memory-leaks/pom.xml

@@ -1,5 +1,5 @@
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    xsi: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>memory-leaks</artifactId>
@@ -12,14 +12,6 @@
         <relativePath>../../</relativePath>
     </parent>
 
-    <dependencies>
-        <dependency>
-            <groupId>junit</groupId>
-            <artifactId>junit</artifactId>
-            <version>${junit.version}</version>
-        </dependency>
-    </dependencies>
-
     <build>
         <resources>
             <resource>

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>java-remote-debugging</artifactId>
@@ -10,8 +10,8 @@
     <parent>
         <groupId>org.springframework.boot</groupId>
         <artifactId>spring-boot-starter-parent</artifactId>
-        <version>${spring-boot-starter-parent.version}</version>
+        <version>1.5.8.RELEASE</version>
-        <relativePath/> <!-- lookup parent from repository -->
+        <relativePath /> <!-- lookup parent from repository -->
     </parent>
 
     <dependencies>
@@ -38,7 +38,6 @@
     <properties>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
-        <spring-boot-starter-parent.version>1.5.8.RELEASE</spring-boot-starter-parent.version>
     </properties>
 
 </project>

guest/spring-boot-app/pom.xml

@@ -1,4 +1,5 @@
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.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>spring-boot-app</groupId>
     <artifactId>spring-boot-app</artifactId>
@@ -38,15 +39,9 @@
         <plugins>
             <plugin>
                 <artifactId>maven-compiler-plugin</artifactId>
-                <version>3.7.0</version>
-                <configuration>
-                    <source>1.8</source>
-                    <target>1.8</target>
-                </configuration>
             </plugin>
             <plugin>
                 <artifactId>maven-war-plugin</artifactId>
-                <version>3.1.0</version>
                 <configuration>
                     <warSourceDirectory>WebContent</warSourceDirectory>
                 </configuration>
@@ -72,6 +67,8 @@
 
     <properties>
         <tomcat.version>8.0.43</tomcat.version>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <java.version>1.8</java.version>
     </properties>
 
 </project>

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>
@@ -12,8 +12,8 @@
     <parent>
         <groupId>org.springframework.boot</groupId>
         <artifactId>spring-boot-starter-parent</artifactId>
-        <version>${spring-boot-starter-parent.version}</version>
+        <version>2.0.0.M5</version>
-        <relativePath/> <!-- lookup parent from repository -->
+        <relativePath /> <!-- lookup parent from repository -->
     </parent>
 
     <dependencies>
@@ -30,7 +30,6 @@
     <properties>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
-        <spring-boot-starter-parent.version>2.0.0.M5</spring-boot-starter-parent.version>
     </properties>
 
 </project>

guest/spring-security/pom.xml

@@ -1,7 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<project xmlns="http://maven.apache.org/POM/4.0.0"
+<project 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"
+    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
-         xsi: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>
@@ -12,8 +11,8 @@
     <parent>
         <groupId>org.springframework.boot</groupId>
         <artifactId>spring-boot-starter-parent</artifactId>
-        <version>${spring-boot-starter-parent.version}</version>
+        <version>2.0.0.M6</version>
-        <relativePath/>
+        <relativePath />
     </parent>
 
     <dependencies>
@@ -49,7 +48,6 @@
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
         <thymeleaf-spring5.version>3.0.8.RELEASE</thymeleaf-spring5.version>
-        <spring-boot-starter-parent.version>2.0.0.M6</spring-boot-starter-parent.version>
     </properties>
 
 </project>

guest/thread-pools/pom.xml

@@ -1,5 +1,5 @@
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    xsi: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>
@@ -12,16 +12,4 @@
         <relativePath>../../</relativePath>
     </parent>
 
-    <dependencies>
-        <dependency>
-            <groupId>ch.qos.logback</groupId>
-            <artifactId>logback-classic</artifactId>
-            <version>${logback-classic.version}</version>
-        </dependency>
-    </dependencies>
-
-    <properties>
-        <logback-classic.version>1.2.3</logback-classic.version>
-    </properties>
-
 </project>

guest/tomcat-app/pom.xml

@@ -1,5 +1,5 @@
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    xsi: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>
@@ -29,15 +29,11 @@
             <artifactId>rest-assured</artifactId>
             <version>${rest-assured.version}</version>
         </dependency>
-        <dependency>
-            <groupId>junit</groupId>
-            <artifactId>junit</artifactId>
-            <version>${junit.version}</version>
-        </dependency>
         <dependency>
             <groupId>com.h2database</groupId>
             <artifactId>h2</artifactId>
             <version>${h2database.version}</version>
+            <scope>runtime</scope>
         </dependency>
         <dependency>
             <groupId>org.apache.logging.log4j</groupId>
@@ -55,7 +51,7 @@
         <plugins>
             <plugin>
                 <artifactId>maven-war-plugin</artifactId>
-                <version>3.0.0</version>
+                <version>${maven-war-plugin.version}</version>
                 <configuration>
                     <warSourceDirectory>WebContent</warSourceDirectory>
                 </configuration>
@@ -64,13 +60,13 @@
     </build>
 
     <properties>
-        <logback-classic.version>1.2.3</logback-classic.version>
         <jersey-container-servlet.version>2.25.1</jersey-container-servlet.version>
         <h2database.version>1.4.195</h2database.version>
         <rest-assured.version>3.0.3</rest-assured.version>
         <log4j-core.version>2.8.2</log4j-core.version>
         <javamelody-core.version>1.69.0</javamelody-core.version>
         <jersey-media-moxy.version>2.25.1</jersey-media-moxy.version>
+        <maven-war-plugin.version>3.0.0</maven-war-plugin.version>
     </properties>
 
 </project>

guest/webservices/rest-client/pom.xml

@@ -25,8 +25,4 @@
         </plugins>
     </build>
 
-    <properties>
-        <maven-war-plugin.version>2.6</maven-war-plugin.version>
-    </properties>
-
 </project>