diff --git a/persistence-modules/activejdbc/pom.xml b/persistence-modules/activejdbc/pom.xml
index 47643cd639..84ce1c2b48 100644
--- a/persistence-modules/activejdbc/pom.xml
+++ b/persistence-modules/activejdbc/pom.xml
@@ -10,9 +10,8 @@
 
     <parent>
         <groupId>com.baeldung</groupId>
-        <artifactId>parent-modules</artifactId>
+        <artifactId>persistence-modules</artifactId>
         <version>1.0.0-SNAPSHOT</version>
-        <relativePath>../../</relativePath>
     </parent>
 
     <dependencies>
@@ -41,16 +40,6 @@
 
     <build>
         <plugins>
-            <plugin>
-                <groupId>org.apache.maven.plugins</groupId>
-                <artifactId>maven-compiler-plugin</artifactId>
-                <version>${maven-compiler-plugin.version}</version>
-                <configuration>
-                    <source>${java.version}</source>
-                    <target>${java.version}</target>
-                    <encoding>UTF-8</encoding>
-                </configuration>
-            </plugin>
             <plugin>
                 <groupId>org.javalite</groupId>
                 <artifactId>activejdbc-instrumentation</artifactId>
diff --git a/persistence-modules/apache-cayenne/pom.xml b/persistence-modules/apache-cayenne/pom.xml
index 7c94c5ba39..d728e18b33 100644
--- a/persistence-modules/apache-cayenne/pom.xml
+++ b/persistence-modules/apache-cayenne/pom.xml
@@ -10,9 +10,8 @@
 
     <parent>
         <groupId>com.baeldung</groupId>
-        <artifactId>parent-modules</artifactId>
+        <artifactId>persistence-modules</artifactId>
         <version>1.0.0-SNAPSHOT</version>
-        <relativePath>../../</relativePath>
     </parent>
 
     <dependencies>
diff --git a/persistence-modules/core-java-persistence/pom.xml b/persistence-modules/core-java-persistence/pom.xml
index 80c4053743..1224523ac7 100644
--- a/persistence-modules/core-java-persistence/pom.xml
+++ b/persistence-modules/core-java-persistence/pom.xml
@@ -10,9 +10,8 @@
 
     <parent>
         <groupId>com.baeldung</groupId>
-        <artifactId>parent-java</artifactId>
-        <version>0.0.1-SNAPSHOT</version>
-        <relativePath>../../parent-java</relativePath>
+        <artifactId>persistence-modules</artifactId>
+        <version>1.0.0-SNAPSHOT</version>
     </parent>
 
     <dependencies>
@@ -60,19 +59,8 @@
         </dependency>
     </dependencies>
 
-    <build>
-        <finalName>core-java-persistence</finalName>
-        <resources>
-            <resource>
-                <directory>src/main/resources</directory>
-                <filtering>true</filtering>
-            </resource>
-        </resources>
-    </build>
-
     <properties>
         <postgresql.version>42.2.5.jre7</postgresql.version>
-        <mysql-connector.version>8.0.15</mysql-connector.version>
         <assertj-core.version>3.10.0</assertj-core.version>
         <commons-dbcp2.version>2.4.0</commons-dbcp2.version>
         <HikariCP.version>3.2.0</HikariCP.version>
diff --git a/persistence-modules/deltaspike/pom.xml b/persistence-modules/deltaspike/pom.xml
index 141412654f..871bacd18b 100644
--- a/persistence-modules/deltaspike/pom.xml
+++ b/persistence-modules/deltaspike/pom.xml
@@ -11,9 +11,8 @@
 
     <parent>
         <groupId>com.baeldung</groupId>
-        <artifactId>parent-modules</artifactId>
+        <artifactId>persistence-modules</artifactId>
         <version>1.0.0-SNAPSHOT</version>
-        <relativePath>../../</relativePath>
     </parent>
 
     <dependencies>
diff --git a/persistence-modules/elasticsearch/pom.xml b/persistence-modules/elasticsearch/pom.xml
index 878dd5847b..654d43d622 100644
--- a/persistence-modules/elasticsearch/pom.xml
+++ b/persistence-modules/elasticsearch/pom.xml
@@ -9,9 +9,8 @@
 
     <parent>
         <groupId>com.baeldung</groupId>
-        <artifactId>parent-modules</artifactId>
+        <artifactId>persistence-modules</artifactId>
         <version>1.0.0-SNAPSHOT</version>
-        <relativePath>../../</relativePath>
     </parent>
 
     <dependencies>
diff --git a/persistence-modules/hbase/pom.xml b/persistence-modules/hbase/pom.xml
index 9403239fb2..f54f2d8985 100644
--- a/persistence-modules/hbase/pom.xml
+++ b/persistence-modules/hbase/pom.xml
@@ -7,9 +7,8 @@
 
     <parent>
         <groupId>com.baeldung</groupId>
-        <artifactId>parent-modules</artifactId>
+        <artifactId>persistence-modules</artifactId>
         <version>1.0.0-SNAPSHOT</version>
-        <relativePath>../../</relativePath>
     </parent>
 
     <dependencies>
diff --git a/persistence-modules/hibernate-mapping/pom.xml b/persistence-modules/hibernate-mapping/pom.xml
index a0a2a047e3..ac7952fa2b 100644
--- a/persistence-modules/hibernate-mapping/pom.xml
+++ b/persistence-modules/hibernate-mapping/pom.xml
@@ -4,14 +4,12 @@
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>hibernate-mapping</artifactId>
-    <version>1.0.0-SNAPSHOT</version>
     <name>hibernate-mapping</name>
 
     <parent>
         <groupId>com.baeldung</groupId>
         <artifactId>persistence-modules</artifactId>
         <version>1.0.0-SNAPSHOT</version>
-        <relativePath>..</relativePath>
     </parent>
 
     <dependencies>
@@ -55,21 +53,11 @@
         </dependency>
     </dependencies>
 
-    <build>
-        <finalName>hibernate-mapping</finalName>
-        <resources>
-            <resource>
-                <directory>src/main/resources</directory>
-                <filtering>true</filtering>
-            </resource>
-        </resources>
-    </build>
-
     <properties>
         <hibernate.version>5.3.10.Final</hibernate.version>
         <assertj-core.version>3.8.0</assertj-core.version>
         <hibernate-validator.version>6.0.16.Final</hibernate-validator.version>
-        <org.glassfish.javax.el.version>3.0.1-b11</org.glassfish.javax.el.version>
+        <org.glassfish.javax.el.version>3.0.1-b11</org.glassfish.javax.el.version>        
         <money-api.version>1.0.3</money-api.version>
         <moneta.version>1.3</moneta.version>
     </properties>
diff --git a/persistence-modules/hibernate-mapping/src/main/java/com/baeldung/hibernate/fetchMode/Customer.java b/persistence-modules/hibernate-mapping/src/main/java/com/baeldung/hibernate/fetchMode/Customer.java
index 5997602205..5589601da8 100644
--- a/persistence-modules/hibernate-mapping/src/main/java/com/baeldung/hibernate/fetchMode/Customer.java
+++ b/persistence-modules/hibernate-mapping/src/main/java/com/baeldung/hibernate/fetchMode/Customer.java
@@ -1,4 +1,4 @@
-package com.baeldung.fetchMode;
+package com.baeldung.hibernate.fetchMode;
 
 import org.hibernate.annotations.Fetch;
 import org.hibernate.annotations.FetchMode;
diff --git a/persistence-modules/hibernate-mapping/src/main/java/com/baeldung/hibernate/fetchMode/Order.java b/persistence-modules/hibernate-mapping/src/main/java/com/baeldung/hibernate/fetchMode/Order.java
index c031972830..aa9c517321 100644
--- a/persistence-modules/hibernate-mapping/src/main/java/com/baeldung/hibernate/fetchMode/Order.java
+++ b/persistence-modules/hibernate-mapping/src/main/java/com/baeldung/hibernate/fetchMode/Order.java
@@ -1,4 +1,4 @@
-package com.baeldung.fetchMode;
+package com.baeldung.hibernate.fetchMode;
 
 import javax.persistence.*;
 
diff --git a/persistence-modules/hibernate-ogm/pom.xml b/persistence-modules/hibernate-ogm/pom.xml
index bb15881788..8f42c28eee 100644
--- a/persistence-modules/hibernate-ogm/pom.xml
+++ b/persistence-modules/hibernate-ogm/pom.xml
@@ -8,9 +8,8 @@
 
     <parent>
         <groupId>com.baeldung</groupId>
-        <artifactId>parent-modules</artifactId>
+        <artifactId>persistence-modules</artifactId>
         <version>1.0.0-SNAPSHOT</version>
-        <relativePath>../../</relativePath>
     </parent>
 
     <dependencies>
@@ -33,12 +32,6 @@
             <version>${narayana-jta.version}</version>
         </dependency>
         <!-- Testing -->
-        <dependency>
-            <groupId>junit</groupId>
-            <artifactId>junit</artifactId>
-            <version>${junit.version}</version>
-            <scope>test</scope>
-        </dependency>
         <dependency>
             <groupId>org.easytesting</groupId>
             <artifactId>fest-assert</artifactId>
@@ -47,16 +40,6 @@
         </dependency>
     </dependencies>
 
-    <build>
-        <finalName>hibernate-ogm</finalName>
-        <resources>
-            <resource>
-                <directory>src/main/resources</directory>
-                <filtering>true</filtering>
-            </resource>
-        </resources>
-    </build>
-
     <properties>
         <hibernate.version>5.4.0.Final</hibernate.version>
         <fest-assert.version>1.4</fest-assert.version>
diff --git a/persistence-modules/hibernate5-2/pom.xml b/persistence-modules/hibernate5-2/pom.xml
index dfee4bb81e..c9ccc09c88 100644
--- a/persistence-modules/hibernate5-2/pom.xml
+++ b/persistence-modules/hibernate5-2/pom.xml
@@ -10,16 +10,15 @@
 
     <parent>
         <groupId>com.baeldung</groupId>
-        <artifactId>parent-modules</artifactId>
+        <artifactId>persistence-modules</artifactId>
         <version>1.0.0-SNAPSHOT</version>
-        <relativePath>../../</relativePath>
     </parent>
 
     <dependencies>
         <dependency>
             <groupId>org.hibernate</groupId>
             <artifactId>hibernate-core</artifactId>
-            <version>5.4.7.Final</version>
+            <version>${hibernate-core.version}</version>
         </dependency>
         <dependency>
             <groupId>org.springframework.boot</groupId>
@@ -51,17 +50,20 @@
         <dependency>
             <groupId>com.h2database</groupId>
             <artifactId>h2</artifactId>
-            <version>1.4.200</version>
+            <version>${h2.version}</version>
         </dependency>
 
         <dependency>
-        	<groupId>org.apache.commons</groupId>
-        	<artifactId>commons-lang3</artifactId>
-        	<version>3.8.1</version>
+            <groupId>org.apache.commons</groupId>
+            <artifactId>commons-lang3</artifactId>
+            <version>${commons-lang3.version}</version>
         </dependency>
     </dependencies>
 
     <properties>
+        <hibernate-core.version>5.4.7.Final</hibernate-core.version>
+        <h2.version>1.4.200</h2.version>
+        <commons-lang3.version>3.8.1</commons-lang3.version>
         <maven.deploy.skip>true</maven.deploy.skip>
         <spring-boot.version>2.1.7.RELEASE</spring-boot.version>
     </properties>
diff --git a/persistence-modules/hibernate5/pom.xml b/persistence-modules/hibernate5/pom.xml
index ec06136f9c..ffeff5ee4a 100644
--- a/persistence-modules/hibernate5/pom.xml
+++ b/persistence-modules/hibernate5/pom.xml
@@ -9,9 +9,8 @@
 
     <parent>
         <groupId>com.baeldung</groupId>
-        <artifactId>parent-modules</artifactId>
+        <artifactId>persistence-modules</artifactId>
         <version>1.0.0-SNAPSHOT</version>
-        <relativePath>../../</relativePath>
     </parent>
 
     <dependencies>
@@ -41,11 +40,6 @@
             <artifactId>geodb</artifactId>
             <version>${geodb.version}</version>
         </dependency>
-        <dependency>
-            <groupId>org.hibernate</groupId>
-            <artifactId>hibernate-c3p0</artifactId>
-            <version>${hibernate.version}</version>
-        </dependency>
         <dependency>
             <groupId>mysql</groupId>
             <artifactId>mysql-connector-java</artifactId>
@@ -66,44 +60,14 @@
             <artifactId>jackson-databind</artifactId>
             <version>${jackson.version}</version>
         </dependency>
-        <dependency>
-            <groupId>net.bytebuddy</groupId>
-            <artifactId>byte-buddy</artifactId>
-            <version>${byte-buddy.version}</version>
-        </dependency>
 
-        <dependency>
-            <groupId>org.hibernate</groupId>
-            <artifactId>hibernate-jpamodelgen</artifactId>
-            <version>${hibernate.version}</version>
-        </dependency>
-        <dependency>
-            <groupId>org.openjdk.jmh</groupId>
-            <artifactId>jmh-core</artifactId>
-            <version>${openjdk-jmh.version}</version>
-        </dependency>
         <dependency>
             <groupId>org.openjdk.jmh</groupId>
             <artifactId>jmh-generator-annprocess</artifactId>
             <version>${openjdk-jmh.version}</version>
         </dependency>
-        <dependency>
-            <groupId>javax.xml.bind</groupId>
-            <artifactId>jaxb-api</artifactId>
-            <version>${jaxb-api.version}</version>
-        </dependency>
     </dependencies>
 
-    <build>
-        <finalName>hibernate5</finalName>
-        <resources>
-            <resource>
-                <directory>src/test/resources</directory>
-                <filtering>true</filtering>
-            </resource>
-        </resources>
-    </build>
-
     <repositories>
         <repository>
             <id>geodb-repo</id>
@@ -119,8 +83,6 @@
         <assertj-core.version>3.8.0</assertj-core.version>
         <openjdk-jmh.version>1.21</openjdk-jmh.version>
         <geodb.version>0.9</geodb.version>
-        <byte-buddy.version>1.9.5</byte-buddy.version>
-        <jaxb-api.version>2.3.0</jaxb-api.version>
     </properties>
 
 </project>
diff --git a/persistence-modules/influxdb/pom.xml b/persistence-modules/influxdb/pom.xml
index 7531ad8217..23ae64dca1 100644
--- a/persistence-modules/influxdb/pom.xml
+++ b/persistence-modules/influxdb/pom.xml
@@ -10,9 +10,8 @@
 
     <parent>
         <groupId>com.baeldung</groupId>
-        <artifactId>parent-modules</artifactId>
+        <artifactId>persistence-modules</artifactId>
         <version>1.0.0-SNAPSHOT</version>
-        <relativePath>../../</relativePath>
     </parent>
 
     <dependencies>
diff --git a/persistence-modules/java-cassandra/pom.xml b/persistence-modules/java-cassandra/pom.xml
index 6628a393fa..54879fb321 100644
--- a/persistence-modules/java-cassandra/pom.xml
+++ b/persistence-modules/java-cassandra/pom.xml
@@ -3,14 +3,12 @@
     xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>java-cassandra</artifactId>
-    <version>1.0.0-SNAPSHOT</version>
     <name>java-cassandra</name>
 
     <parent>
         <groupId>com.baeldung</groupId>
-        <artifactId>parent-java</artifactId>
-        <version>0.0.1-SNAPSHOT</version>
-        <relativePath>../../parent-java</relativePath>
+        <artifactId>persistence-modules</artifactId>
+        <version>1.0.0-SNAPSHOT</version>
     </parent>
 
     <dependencies>
@@ -40,26 +38,13 @@
             <artifactId>java-driver-query-builder</artifactId>
             <version>${datastax-cassandra.version}</version>
         </dependency>
-
-        <dependency>
-            <groupId>io.netty</groupId>
-            <artifactId>netty-handler</artifactId>
-            <version>${io-netty.version}</version>
-        </dependency>
-
     </dependencies>
 
-    <build>
-        <finalName>java-cassandra</finalName>
-    </build>
-
     <properties>
         <!-- Cassandra -->
         <cassandra-driver-core.version>3.1.2</cassandra-driver-core.version>
         <cassandra-unit.version>3.1.1.0</cassandra-unit.version>
         <datastax-cassandra.version>4.1.0</datastax-cassandra.version>
-        <io-netty.version>4.1.34.Final</io-netty.version>
-        <guava.version>18.0</guava.version>
     </properties>
 
 </project>
diff --git a/persistence-modules/java-cockroachdb/pom.xml b/persistence-modules/java-cockroachdb/pom.xml
index 750cbfce4c..e8c6365ca3 100644
--- a/persistence-modules/java-cockroachdb/pom.xml
+++ b/persistence-modules/java-cockroachdb/pom.xml
@@ -8,9 +8,8 @@
 
     <parent>
         <groupId>com.baeldung</groupId>
-        <artifactId>parent-modules</artifactId>
+        <artifactId>persistence-modules</artifactId>
         <version>1.0.0-SNAPSHOT</version>
-        <relativePath>../../</relativePath>
     </parent>
 
     <dependencies>
diff --git a/persistence-modules/java-jdbi/pom.xml b/persistence-modules/java-jdbi/pom.xml
index 0d978dc164..eb0de45593 100644
--- a/persistence-modules/java-jdbi/pom.xml
+++ b/persistence-modules/java-jdbi/pom.xml
@@ -8,9 +8,8 @@
 
     <parent>
         <groupId>com.baeldung</groupId>
-        <artifactId>parent-modules</artifactId>
+        <artifactId>persistence-modules</artifactId>
         <version>1.0.0-SNAPSHOT</version>
-        <relativePath>../../</relativePath>
     </parent>
 
     <dependencies>
diff --git a/persistence-modules/java-jpa-2/pom.xml b/persistence-modules/java-jpa-2/pom.xml
index cc9e69fcaa..f79f6f1633 100644
--- a/persistence-modules/java-jpa-2/pom.xml
+++ b/persistence-modules/java-jpa-2/pom.xml
@@ -7,9 +7,8 @@
 
     <parent>
         <groupId>com.baeldung</groupId>
-        <artifactId>parent-modules</artifactId>
+        <artifactId>persistence-modules</artifactId>
         <version>1.0.0-SNAPSHOT</version>
-        <relativePath>../../pom.xml</relativePath>
     </parent>
 
     <dependencies>
@@ -63,7 +62,7 @@
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-compiler-plugin</artifactId>
-                <version>3.5.1</version>
+                <version>${maven-compiler-plugin.version}</version>
                 <configuration>
                     <compilerArgument>-proc:none</compilerArgument>
                 </configuration>
@@ -71,7 +70,7 @@
             <plugin>
                 <groupId>org.bsc.maven</groupId>
                 <artifactId>maven-processor-plugin</artifactId>
-                <version>3.3.3</version>
+                <version>${maven-processor-plugin.version}</version>
                 <executions>
                     <execution>
                         <id>process</id>
@@ -91,7 +90,7 @@
             <plugin>
                 <groupId>org.codehaus.mojo</groupId>
                 <artifactId>build-helper-maven-plugin</artifactId>
-                <version>3.0.0</version>
+                <version>${build-helper-maven-plugin.version}</version>
                 <executions>
                     <execution>
                         <id>add-source</id>
@@ -116,6 +115,9 @@
         <postgres.version>42.2.5</postgres.version>
         <javax.persistence-api.version>2.2</javax.persistence-api.version>
         <assertj.version>3.11.1</assertj.version>
+        <maven-compiler-plugin.version>3.5.1</maven-compiler-plugin.version>
+        <maven-processor-plugin.version>3.3.3</maven-processor-plugin.version>
+        <build-helper-maven-plugin.version>3.0.0</build-helper-maven-plugin.version>
     </properties>
 
 </project>
\ No newline at end of file
diff --git a/persistence-modules/java-jpa/pom.xml b/persistence-modules/java-jpa/pom.xml
index a979cf7e65..762c541d96 100644
--- a/persistence-modules/java-jpa/pom.xml
+++ b/persistence-modules/java-jpa/pom.xml
@@ -8,9 +8,8 @@
 
     <parent>
         <groupId>com.baeldung</groupId>
-        <artifactId>parent-modules</artifactId>
+        <artifactId>persistence-modules</artifactId>
         <version>1.0.0-SNAPSHOT</version>
-        <relativePath>../../pom.xml</relativePath>
     </parent>
 
     <dependencies>
diff --git a/persistence-modules/java-mongodb/pom.xml b/persistence-modules/java-mongodb/pom.xml
index 1e59bd9064..d62240927a 100644
--- a/persistence-modules/java-mongodb/pom.xml
+++ b/persistence-modules/java-mongodb/pom.xml
@@ -9,9 +9,8 @@
 
     <parent>
         <groupId>com.baeldung</groupId>
-        <artifactId>parent-modules</artifactId>
+        <artifactId>persistence-modules</artifactId>
         <version>1.0.0-SNAPSHOT</version>
-        <relativePath>../../</relativePath>
     </parent>
 
     <dependencies>
@@ -35,8 +34,6 @@
     </dependencies>
 
     <properties>
-        <maven.compiler.source>1.8</maven.compiler.source>
-        <maven.compiler.target>1.8</maven.compiler.target>
         <mongo.version>3.10.1</mongo.version>
         <flapdoodle.version>1.11</flapdoodle.version>
         <morphia.version>1.5.3</morphia.version>
diff --git a/persistence-modules/jnosql/pom.xml b/persistence-modules/jnosql/pom.xml
index b96722de18..fb7ac72b05 100644
--- a/persistence-modules/jnosql/pom.xml
+++ b/persistence-modules/jnosql/pom.xml
@@ -11,9 +11,8 @@
 
     <parent>
         <groupId>com.baeldung</groupId>
-        <artifactId>parent-modules</artifactId>
+        <artifactId>persistence-modules</artifactId>
         <version>1.0.0-SNAPSHOT</version>
-        <relativePath>../../</relativePath>
     </parent>
 
     <modules>
@@ -22,8 +21,6 @@
     </modules>
 
     <properties>
-        <maven.compiler.source>1.8</maven.compiler.source>
-        <maven.compiler.target>1.8</maven.compiler.target>
         <jnosql.version>0.0.5</jnosql.version>
     </properties>
 
diff --git a/persistence-modules/jpa-hibernate-cascade-type/pom.xml b/persistence-modules/jpa-hibernate-cascade-type/pom.xml
index a545723746..1fc119592c 100644
--- a/persistence-modules/jpa-hibernate-cascade-type/pom.xml
+++ b/persistence-modules/jpa-hibernate-cascade-type/pom.xml
@@ -4,13 +4,10 @@
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>jpa-hibernate-cascade-type</artifactId>
-    <version>1.0.0-SNAPSHOT</version>
-
     <parent>
         <groupId>com.baeldung</groupId>
-        <artifactId>parent-modules</artifactId>
+        <artifactId>persistence-modules</artifactId>
         <version>1.0.0-SNAPSHOT</version>
-        <relativePath>../../</relativePath>
     </parent>
 
     <dependencies>
@@ -48,24 +45,12 @@
         </dependency>
     </dependencies>
 
-    <build>
-        <finalName>jpa-hibernate-cascade-type</finalName>
-        <resources>
-            <resource>
-                <directory>src/test/resources</directory>
-                <filtering>true</filtering>
-            </resource>
-        </resources>
-    </build>
-
     <properties>
         <hibernate.version>5.4.3.Final</hibernate.version>
         <assertj-core.version>3.12.2</assertj-core.version>
         <hibernate-validator.version>6.0.17.Final</hibernate-validator.version>
         <javax.el-api.version>3.0.0</javax.el-api.version>
         <org.glassfish.javax.el.version>3.0.1-b11</org.glassfish.javax.el.version>
-        <maven.compiler.source>1.8</maven.compiler.source>
-        <maven.compiler.target>1.8</maven.compiler.target>
     </properties>
 
 </project>
\ No newline at end of file
diff --git a/persistence-modules/liquibase/pom.xml b/persistence-modules/liquibase/pom.xml
index 39e86b5186..af1af2259e 100644
--- a/persistence-modules/liquibase/pom.xml
+++ b/persistence-modules/liquibase/pom.xml
@@ -7,9 +7,8 @@
 
     <parent>
         <groupId>com.baeldung</groupId>
-        <artifactId>parent-modules</artifactId>
+        <artifactId>persistence-modules</artifactId>
         <version>1.0.0-SNAPSHOT</version>
-        <relativePath>../../</relativePath>
     </parent>
 
     <dependencies>
diff --git a/persistence-modules/orientdb/pom.xml b/persistence-modules/orientdb/pom.xml
index 7b0bef7fc5..5b28fb01b0 100644
--- a/persistence-modules/orientdb/pom.xml
+++ b/persistence-modules/orientdb/pom.xml
@@ -10,9 +10,8 @@
 
     <parent>
         <groupId>com.baeldung</groupId>
-        <artifactId>parent-modules</artifactId>
+        <artifactId>persistence-modules</artifactId>
         <version>1.0.0-SNAPSHOT</version>
-        <relativePath>../../</relativePath>
     </parent>
 
     <dependencies>
diff --git a/persistence-modules/persistence-libraries/pom.xml b/persistence-modules/persistence-libraries/pom.xml
index 74ff262637..a72654f2aa 100644
--- a/persistence-modules/persistence-libraries/pom.xml
+++ b/persistence-modules/persistence-libraries/pom.xml
@@ -10,7 +10,6 @@
         <groupId>com.baeldung</groupId>
         <artifactId>persistence-modules</artifactId>
         <version>1.0.0-SNAPSHOT</version>
-        <relativePath>..</relativePath>
     </parent>
 
     <dependencies>
@@ -25,30 +24,10 @@
             <version>${hsqldb.version}</version>
             <scope>test</scope>
         </dependency>
-        <dependency>
-            <groupId>junit</groupId>
-            <artifactId>junit</artifactId>
-            <version>${junit.version}</version>
-            <scope>test</scope>
-        </dependency>
     </dependencies>
 
-    <build>
-        <plugins>
-            <plugin>
-                <groupId>org.apache.maven.plugins</groupId>
-                <artifactId>maven-compiler-plugin</artifactId>
-                <configuration>
-                    <source>8</source>
-                    <target>8</target>
-                </configuration>
-            </plugin>
-        </plugins>
-    </build>
-
     <properties>
         <hsqldb.version>2.4.0</hsqldb.version>
-        <junit.version>4.12</junit.version>
         <sql2o.version>1.6.0</sql2o.version>
     </properties>
 
diff --git a/persistence-modules/pom.xml b/persistence-modules/pom.xml
index 7ab9f33085..15b62d5d77 100644
--- a/persistence-modules/pom.xml
+++ b/persistence-modules/pom.xml
@@ -10,7 +10,6 @@
         <groupId>com.baeldung</groupId>
         <artifactId>parent-modules</artifactId>
         <version>1.0.0-SNAPSHOT</version>
-        <relativePath>..</relativePath>
     </parent>
 
     <modules>
diff --git a/persistence-modules/querydsl/pom.xml b/persistence-modules/querydsl/pom.xml
index 690e65d737..9f6802ff77 100644
--- a/persistence-modules/querydsl/pom.xml
+++ b/persistence-modules/querydsl/pom.xml
@@ -6,13 +6,11 @@
     <version>0.1-SNAPSHOT</version>
     <name>querydsl</name>
     <packaging>jar</packaging>
-    <url>http://maven.apache.org</url>
 
     <parent>
         <groupId>com.baeldung</groupId>
-        <artifactId>parent-modules</artifactId>
+        <artifactId>persistence-modules</artifactId>
         <version>1.0.0-SNAPSHOT</version>
-        <relativePath>../../</relativePath>
     </parent>
 
     <dependencies>
diff --git a/persistence-modules/redis/pom.xml b/persistence-modules/redis/pom.xml
index 98b8ef30f3..fffcfbb96b 100644
--- a/persistence-modules/redis/pom.xml
+++ b/persistence-modules/redis/pom.xml
@@ -9,9 +9,8 @@
 
     <parent>
         <groupId>com.baeldung</groupId>
-        <artifactId>parent-modules</artifactId>
+        <artifactId>persistence-modules</artifactId>
         <version>1.0.0-SNAPSHOT</version>
-        <relativePath>../../</relativePath>
     </parent>
 
     <dependencies>
diff --git a/persistence-modules/solr/pom.xml b/persistence-modules/solr/pom.xml
index 5902d42a82..fd993e0c67 100644
--- a/persistence-modules/solr/pom.xml
+++ b/persistence-modules/solr/pom.xml
@@ -9,9 +9,8 @@
 
     <parent>
         <groupId>com.baeldung</groupId>
-        <artifactId>parent-modules</artifactId>
+        <artifactId>persistence-modules</artifactId>
         <version>1.0.0-SNAPSHOT</version>
-        <relativePath>../../</relativePath>
     </parent>
 
     <dependencies>
diff --git a/persistence-modules/spring-boot-mysql/pom.xml b/persistence-modules/spring-boot-mysql/pom.xml
index e4456b2eaf..9f6ec73522 100644
--- a/persistence-modules/spring-boot-mysql/pom.xml
+++ b/persistence-modules/spring-boot-mysql/pom.xml
@@ -37,18 +37,7 @@
         </dependency>
     </dependencies>
 
-    <build>
-        <finalName>spring-boot-mysql</finalName>
-        <resources>
-            <resource>
-                <directory>src/main/resources</directory>
-                <filtering>true</filtering>
-            </resource>
-        </resources>
-    </build>
-
     <properties>
-        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <mysql-connector-java.version>8.0.12</mysql-connector-java.version>
     </properties>
 
diff --git a/persistence-modules/spring-boot-persistence-2/pom.xml b/persistence-modules/spring-boot-persistence-2/pom.xml
index 51fa56bf17..8fee49af70 100644
--- a/persistence-modules/spring-boot-persistence-2/pom.xml
+++ b/persistence-modules/spring-boot-persistence-2/pom.xml
@@ -11,9 +11,8 @@
 
     <parent>
         <groupId>com.baeldung</groupId>
-        <artifactId>parent-modules</artifactId>
+        <artifactId>persistence-modules</artifactId>
         <version>1.0.0-SNAPSHOT</version>
-        <relativePath>../../pom.xml</relativePath>
     </parent>
 
     <dependencyManagement>
@@ -95,7 +94,6 @@
     </build>
 
     <properties>
-        <java.version>1.8</java.version>
         <jdbi.version>3.9.1</jdbi.version>
     </properties>
 
diff --git a/persistence-modules/spring-boot-persistence-h2/pom.xml b/persistence-modules/spring-boot-persistence-h2/pom.xml
index 9a0a72ba23..5b5e255211 100644
--- a/persistence-modules/spring-boot-persistence-h2/pom.xml
+++ b/persistence-modules/spring-boot-persistence-h2/pom.xml
@@ -5,7 +5,6 @@
     <modelVersion>4.0.0</modelVersion>
     <groupId>com.baeldung.h2db</groupId>
     <artifactId>spring-boot-persistence-h2</artifactId>
-    <version>0.0.1-SNAPSHOT</version>
     <name>spring-boot-persistence-h2</name>
     <packaging>jar</packaging>
     <description>Demo Spring Boot applications that starts H2 in memory database</description>
@@ -32,19 +31,7 @@
         </dependency>
     </dependencies>
 
-    <build>
-        <plugins>
-            <plugin>
-                <groupId>org.springframework.boot</groupId>
-                <artifactId>spring-boot-maven-plugin</artifactId>
-            </plugin>
-        </plugins>
-    </build>
-
     <properties>
-        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
-        <java.version>1.8</java.version>
         <!-- The main class to start by executing java -jar -->
         <start-class>com.baeldung.h2db.demo.server.SpringBootApp</start-class>
         <spring-boot.version>2.0.4.RELEASE</spring-boot.version>
diff --git a/persistence-modules/spring-boot-persistence-mongodb/pom.xml b/persistence-modules/spring-boot-persistence-mongodb/pom.xml
index da48f066f9..de52a4b2d6 100644
--- a/persistence-modules/spring-boot-persistence-mongodb/pom.xml
+++ b/persistence-modules/spring-boot-persistence-mongodb/pom.xml
@@ -34,80 +34,6 @@
             <artifactId>de.flapdoodle.embed.mongo</artifactId>
             <scope>test</scope>
         </dependency>
-        <!-- JUnit Jupiter dependencies -->
-        <dependency>
-            <groupId>org.junit.jupiter</groupId>
-            <artifactId>junit-jupiter-api</artifactId>
-            <scope>test</scope>
-        </dependency>
-        <dependency>
-            <groupId>org.junit.jupiter</groupId>
-            <artifactId>junit-jupiter-engine</artifactId>
-            <scope>test</scope>
-        </dependency>
-        <!-- JUnit platform launcher -->
-        <!-- To be able to run tests from IDE directly -->
-        <dependency>
-            <groupId>org.junit.platform</groupId>
-            <artifactId>junit-platform-launcher</artifactId>
-            <version>${junit-platform.version}</version>
-            <scope>test</scope>
-        </dependency>
-        <dependency>
-            <groupId>org.springframework.boot</groupId>
-            <artifactId>spring-boot-starter-test</artifactId>
-            <scope>test</scope>
-        </dependency>
     </dependencies>
 
-    <build>
-        <finalName>spring-boot-persistence-mongodb</finalName>
-        <resources>
-            <resource>
-                <directory>src/main/resources</directory>
-                <filtering>true</filtering>
-            </resource>
-        </resources>
-        <plugins>
-            <plugin>
-                <groupId>org.apache.maven.plugins</groupId>
-                <artifactId>maven-war-plugin</artifactId>
-            </plugin>
-        </plugins>
-    </build>
-
-    <profiles>
-        <profile>
-            <id>autoconfiguration</id>
-            <build>
-                <plugins>
-                    <plugin>
-                        <groupId>org.apache.maven.plugins</groupId>
-                        <artifactId>maven-surefire-plugin</artifactId>
-                        <executions>
-                            <execution>
-                                <phase>integration-test</phase>
-                                <goals>
-                                    <goal>test</goal>
-                                </goals>
-                                <configuration>
-                                    <excludes>
-                                        <exclude>**/*LiveTest.java</exclude>
-                                        <exclude>**/*IntegrationTest.java</exclude>
-                                        <exclude>**/*IntTest.java</exclude>
-                                    </excludes>
-                                </configuration>
-                            </execution>
-                        </executions>
-                        <configuration>
-                            <systemPropertyVariables>
-                                <test.mime>json</test.mime>
-                            </systemPropertyVariables>
-                        </configuration>
-                    </plugin>
-                </plugins>
-            </build>
-        </profile>
-    </profiles>
-
-</project>
+</project>
\ No newline at end of file
diff --git a/persistence-modules/spring-boot-persistence/pom.xml b/persistence-modules/spring-boot-persistence/pom.xml
index 049e7225ac..c58e8dbf86 100644
--- a/persistence-modules/spring-boot-persistence/pom.xml
+++ b/persistence-modules/spring-boot-persistence/pom.xml
@@ -1,6 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<project xmlns="http://maven.apache.org/POM/4.0.0" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd"
-         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd"
+    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>spring-boot-persistence</artifactId>
     <version>0.1.0</version>
@@ -17,17 +18,14 @@
         <dependency>
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-web</artifactId>
-            <version>${spring-boot.version}</version>
         </dependency>
         <dependency>
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-thymeleaf</artifactId>
-            <version>${spring-boot.version}</version>
         </dependency>
         <dependency>
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-data-jpa</artifactId>
-            <version>${spring-boot.version}</version>
             <exclusions>
                 <exclusion>
                     <groupId>com.zaxxer</groupId>
@@ -38,7 +36,6 @@
         <dependency>
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-test</artifactId>
-            <version>${spring-boot.version}</version>
         </dependency>
         <dependency>
             <groupId>org.mockito</groupId>
@@ -61,7 +58,6 @@
         <dependency>
             <groupId>javax.validation</groupId>
             <artifactId>validation-api</artifactId>
-            <version>${validation-api.version}</version>
         </dependency>
         <dependency>
             <groupId>org.xerial</groupId>
@@ -70,39 +66,17 @@
         <dependency>
             <groupId>org.apache.derby</groupId>
             <artifactId>derby</artifactId>
-            <version>${derby.version}</version>
         </dependency>
         <dependency>
             <groupId>org.hsqldb</groupId>
             <artifactId>hsqldb</artifactId>
-            <version>${hsqldb.version}</version>
         </dependency>
     </dependencies>
 
-    <build>
-        <finalName>spring-boot-persistence</finalName>
-        <resources>
-            <resource>
-                <directory>src/main/resources</directory>
-                <filtering>true</filtering>
-            </resource>
-        </resources>
-        <plugins>
-            <plugin>
-                <groupId>org.springframework.boot</groupId>
-                <artifactId>spring-boot-maven-plugin</artifactId>
-            </plugin>
-        </plugins>
-    </build>
-
     <properties>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-        <mysql-connector-java.version>8.0.12</mysql-connector-java.version>
-        <tomcat-jdbc.version>9.0.10</tomcat-jdbc.version>
         <mockito.version>2.23.0</mockito.version>
         <validation-api.version>2.0.1.Final</validation-api.version>
-        <derby.version>10.13.1.1</derby.version>
-        <hsqldb.version>2.3.4</hsqldb.version>
         <spring-boot.version>2.1.7.RELEASE</spring-boot.version>
     </properties>
 
diff --git a/persistence-modules/spring-data-cassandra-reactive/pom.xml b/persistence-modules/spring-data-cassandra-reactive/pom.xml
index a57ebbe703..70a5f556e2 100644
--- a/persistence-modules/spring-data-cassandra-reactive/pom.xml
+++ b/persistence-modules/spring-data-cassandra-reactive/pom.xml
@@ -1,10 +1,8 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<project xmlns="http://maven.apache.org/POM/4.0.0"
-         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>spring-data-cassandra-reactive</artifactId>
-    <version>0.0.1-SNAPSHOT</version>
     <name>spring-data-cassandra-reactive</name>
     <packaging>jar</packaging>
     <description>Spring Data Cassandra reactive</description>
@@ -20,7 +18,6 @@
         <dependency>
             <groupId>org.springframework.data</groupId>
             <artifactId>spring-data-cassandra</artifactId>
-            <version>${spring-data-cassandra.version}</version>
         </dependency>
         <dependency>
             <groupId>io.projectreactor</groupId>
@@ -54,10 +51,6 @@
     </dependencies>
 
     <properties>
-        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-        <project.reporting.outputEncoding>UTF-8
-        </project.reporting.outputEncoding>
-        <spring-data-cassandra.version>2.1.2.RELEASE</spring-data-cassandra.version>
         <cassandra-unit-spring.version>3.11.2.0</cassandra-unit-spring.version>
     </properties>
 
diff --git a/persistence-modules/spring-data-cassandra/pom.xml b/persistence-modules/spring-data-cassandra/pom.xml
index 9ea39f3f55..0f0aae4ebf 100644
--- a/persistence-modules/spring-data-cassandra/pom.xml
+++ b/persistence-modules/spring-data-cassandra/pom.xml
@@ -3,7 +3,6 @@
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>spring-data-cassandra</artifactId>
-    <version>0.0.1-SNAPSHOT</version>
     <name>spring-data-cassandra</name>
     <packaging>jar</packaging>
 
@@ -80,7 +79,6 @@
         <cassandra-unit-spring.version>2.1.9.2</cassandra-unit-spring.version>
         <cassandra-unit-shaded.version>2.1.9.2</cassandra-unit-shaded.version>
         <hector-core.version>2.0-0</hector-core.version>
-        <guava.version>19.0</guava.version>
     </properties>
 
 </project>
diff --git a/persistence-modules/spring-data-couchbase-2/pom.xml b/persistence-modules/spring-data-couchbase-2/pom.xml
index 56456fc04b..484561ddaa 100644
--- a/persistence-modules/spring-data-couchbase-2/pom.xml
+++ b/persistence-modules/spring-data-couchbase-2/pom.xml
@@ -11,9 +11,8 @@
 
     <parent>
         <groupId>com.baeldung</groupId>
-        <artifactId>parent-modules</artifactId>
+        <artifactId>persistence-modules</artifactId>
         <version>1.0.0-SNAPSHOT</version>
-        <relativePath>../../</relativePath>
     </parent>
 
     <dependencies>
diff --git a/persistence-modules/spring-data-dynamodb/pom.xml b/persistence-modules/spring-data-dynamodb/pom.xml
index 871f99125a..fceceb40ba 100644
--- a/persistence-modules/spring-data-dynamodb/pom.xml
+++ b/persistence-modules/spring-data-dynamodb/pom.xml
@@ -138,19 +138,7 @@
     </dependencies>
 
     <build>
-        <finalName>spring-data-dynamodb</finalName>
-        <resources>
-            <resource>
-                <directory>src/main/resources</directory>
-                <filtering>true</filtering>
-            </resource>
-        </resources>
-
         <plugins>
-            <plugin>
-                <groupId>org.apache.maven.plugins</groupId>
-                <artifactId>maven-war-plugin</artifactId>
-            </plugin>
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-dependency-plugin</artifactId>
diff --git a/persistence-modules/spring-data-eclipselink/pom.xml b/persistence-modules/spring-data-eclipselink/pom.xml
index bb596d4a8a..4ae43de07a 100644
--- a/persistence-modules/spring-data-eclipselink/pom.xml
+++ b/persistence-modules/spring-data-eclipselink/pom.xml
@@ -7,9 +7,8 @@
 
     <parent>
         <groupId>com.baeldung</groupId>
-        <artifactId>parent-modules</artifactId>
+        <artifactId>persistence-modules</artifactId>
         <version>1.0.0-SNAPSHOT</version>
-        <relativePath>../../</relativePath>
     </parent>
 
     <dependencies>
diff --git a/persistence-modules/spring-data-elasticsearch/pom.xml b/persistence-modules/spring-data-elasticsearch/pom.xml
index ccd2f94e59..3446528323 100644
--- a/persistence-modules/spring-data-elasticsearch/pom.xml
+++ b/persistence-modules/spring-data-elasticsearch/pom.xml
@@ -2,7 +2,6 @@
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>spring-data-elasticsearch</artifactId>
-    <version>0.0.1-SNAPSHOT</version>
     <name>spring-data-elasticsearch</name>
     <packaging>jar</packaging>
 
@@ -89,8 +88,6 @@
     </dependencies>
 
     <properties>
-        <maven.compiler.source>1.8</maven.compiler.source>
-        <maven.compiler.target>1.8</maven.compiler.target>
         <spring-data-elasticsearch.version>3.0.8.RELEASE</spring-data-elasticsearch.version>
         <jna.version>4.5.2</jna.version>
         <elasticsearch.version>5.6.0</elasticsearch.version>
diff --git a/persistence-modules/spring-data-gemfire/pom.xml b/persistence-modules/spring-data-gemfire/pom.xml
index 6bd689192c..a0cc4d5360 100644
--- a/persistence-modules/spring-data-gemfire/pom.xml
+++ b/persistence-modules/spring-data-gemfire/pom.xml
@@ -8,9 +8,8 @@
 
     <parent>
         <groupId>com.baeldung</groupId>
-        <artifactId>parent-modules</artifactId>
+        <artifactId>persistence-modules</artifactId>
         <version>1.0.0-SNAPSHOT</version>
-        <relativePath>../../</relativePath>
     </parent>
 
     <dependencies>
diff --git a/persistence-modules/spring-data-geode/pom.xml b/persistence-modules/spring-data-geode/pom.xml
index 2a9cbe35e9..02dec1dadd 100644
--- a/persistence-modules/spring-data-geode/pom.xml
+++ b/persistence-modules/spring-data-geode/pom.xml
@@ -9,16 +9,15 @@
 
     <parent>
         <groupId>com.baeldung</groupId>
-        <artifactId>parent-modules</artifactId>
+        <artifactId>persistence-modules</artifactId>
         <version>1.0.0-SNAPSHOT</version>
-        <relativePath>../../</relativePath>
     </parent>
 
     <dependencies>
         <dependency>
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter</artifactId>
-            <version>2.1.9.RELEASE</version>
+            <version>${spring-boot-version}</version>
             <exclusions>
                 <exclusion>
                     <groupId>org.springframework.boot</groupId>
diff --git a/persistence-modules/spring-data-jpa-3/pom.xml b/persistence-modules/spring-data-jpa-3/pom.xml
index 8a949b3008..d02d089ba3 100644
--- a/persistence-modules/spring-data-jpa-3/pom.xml
+++ b/persistence-modules/spring-data-jpa-3/pom.xml
@@ -52,34 +52,6 @@
             <scope>runtime</scope>
         </dependency>
 
-        <!-- Test Dependencies -->
-        <dependency>
-            <groupId>org.springframework.boot</groupId>
-            <artifactId>spring-boot-starter-test</artifactId>
-            <scope>test</scope>
-            <exclusions>
-                <exclusion>
-                    <groupId>junit</groupId>
-                    <artifactId>junit</artifactId>
-                </exclusion>
-            </exclusions>
-        </dependency>
-        <dependency>
-            <groupId>org.junit.jupiter</groupId>
-            <artifactId>junit-jupiter-api</artifactId>
-            <scope>test</scope>
-        </dependency>
-        <dependency>
-            <groupId>org.junit.jupiter</groupId>
-            <artifactId>junit-jupiter-engine</artifactId>
-            <scope>test</scope>
-        </dependency>
-        <dependency>
-            <groupId>org.junit.platform</groupId>
-            <artifactId>junit-platform-launcher</artifactId>
-            <scope>test</scope>
-        </dependency>
-
         <!-- Test containers only dependencies -->
         <dependency>
             <groupId>org.testcontainers</groupId>
@@ -94,9 +66,6 @@
         <datasource-proxy.version>1.4.1</datasource-proxy.version>
         <guava.version>21.0</guava.version>
         <testcontainers.version>1.12.2</testcontainers.version>
-        <postgresql.version>42.2.8</postgresql.version>
-        <testcontainers.version>1.12.2</testcontainers.version>
-        <h2.version>1.4.200</h2.version>
     </properties>
 
 </project>
diff --git a/persistence-modules/spring-data-jpa-4/pom.xml b/persistence-modules/spring-data-jpa-4/pom.xml
index 44b7c3c268..e0b441231e 100644
--- a/persistence-modules/spring-data-jpa-4/pom.xml
+++ b/persistence-modules/spring-data-jpa-4/pom.xml
@@ -27,12 +27,6 @@
             <groupId>com.h2database</groupId>
             <artifactId>h2</artifactId>
         </dependency>
-
-        <dependency>
-            <groupId>org.springframework.boot</groupId>
-            <artifactId>spring-boot-starter-test</artifactId>
-            <scope>test</scope>
-        </dependency>
     </dependencies>
 
 </project>
\ No newline at end of file
diff --git a/persistence-modules/spring-data-jpa/pom.xml b/persistence-modules/spring-data-jpa/pom.xml
index 27b8ce5eaf..ddd7e17dcd 100644
--- a/persistence-modules/spring-data-jpa/pom.xml
+++ b/persistence-modules/spring-data-jpa/pom.xml
@@ -1,7 +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>spring-data-jpa</artifactId>
     <name>spring-data-jpa</name>
@@ -43,7 +42,6 @@
         <dependency>
             <groupId>org.postgresql</groupId>
             <artifactId>postgresql</artifactId>
-            <version>${postgresql.version}</version>
         </dependency>
         <!-- Test containers only dependencies -->
 
@@ -67,26 +65,6 @@
             <artifactId>guava</artifactId>
             <version>${guava.version}</version>
         </dependency>
-
-        <!-- JUnit Jupiter dependencies -->
-        <dependency>
-            <groupId>org.junit.jupiter</groupId>
-            <artifactId>junit-jupiter-api</artifactId>
-            <scope>test</scope>
-        </dependency>
-        <dependency>
-            <groupId>org.junit.jupiter</groupId>
-            <artifactId>junit-jupiter-engine</artifactId>
-            <scope>test</scope>
-        </dependency>
-        <!-- JUnit platform launcher -->
-        <!-- To be able to run tests from IDE directly -->
-        <dependency>
-            <groupId>org.junit.platform</groupId>
-            <artifactId>junit-platform-launcher</artifactId>
-            <version>${junit-platform.version}</version>
-            <scope>test</scope>
-        </dependency>
     </dependencies>
 
     <properties>
diff --git a/persistence-modules/spring-data-neo4j/pom.xml b/persistence-modules/spring-data-neo4j/pom.xml
index 625e2c5fc1..d827c32a3c 100644
--- a/persistence-modules/spring-data-neo4j/pom.xml
+++ b/persistence-modules/spring-data-neo4j/pom.xml
@@ -8,9 +8,8 @@
 
     <parent>
         <groupId>com.baeldung</groupId>
-        <artifactId>parent-modules</artifactId>
+        <artifactId>persistence-modules</artifactId>
         <version>1.0.0-SNAPSHOT</version>
-        <relativePath>../../</relativePath>
     </parent>
 
     <dependencies>
diff --git a/persistence-modules/spring-data-redis/pom.xml b/persistence-modules/spring-data-redis/pom.xml
index f2095b937a..d2bf074d03 100644
--- a/persistence-modules/spring-data-redis/pom.xml
+++ b/persistence-modules/spring-data-redis/pom.xml
@@ -4,7 +4,7 @@
     <modelVersion>4.0.0</modelVersion>
     <artifactId>spring-data-redis</artifactId>
     <version>1.0</version>
-	<name>spring-data-redis</name>
+    <name>spring-data-redis</name>
     <packaging>jar</packaging>
 
     <parent>
@@ -62,7 +62,6 @@
         <dependency>
             <groupId>redis.clients</groupId>
             <artifactId>jedis</artifactId>
-            <version>${jedis.version}</version>
             <type>jar</type>
         </dependency>
 
@@ -97,9 +96,7 @@
 
     <properties>
         <cglib.version>3.2.4</cglib.version>
-        <jedis.version>2.9.0</jedis.version>
         <nosqlunit.version>0.10.0</nosqlunit.version>
-        <spring-data-commons.version>2.0.3.RELEASE</spring-data-commons.version>
         <embedded-redis.version>0.6</embedded-redis.version>
         <spring-boot.version>2.1.9.RELEASE</spring-boot.version>
     </properties>
diff --git a/persistence-modules/spring-data-solr/pom.xml b/persistence-modules/spring-data-solr/pom.xml
index 1a17a2e321..9d96c75082 100644
--- a/persistence-modules/spring-data-solr/pom.xml
+++ b/persistence-modules/spring-data-solr/pom.xml
@@ -3,7 +3,6 @@
     xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>spring-data-solr</artifactId>
-    <version>0.0.1-SNAPSHOT</version>
     <name>spring-data-solr</name>
     <packaging>jar</packaging>
 
diff --git a/persistence-modules/spring-hibernate-3/pom.xml b/persistence-modules/spring-hibernate-3/pom.xml
index e677776a95..b28895f86d 100644
--- a/persistence-modules/spring-hibernate-3/pom.xml
+++ b/persistence-modules/spring-hibernate-3/pom.xml
@@ -8,9 +8,8 @@
 
     <parent>
         <groupId>com.baeldung</groupId>
-        <artifactId>parent-modules</artifactId>
+        <artifactId>persistence-modules</artifactId>
         <version>1.0.0-SNAPSHOT</version>
-        <relativePath>../../</relativePath>
     </parent>
 
     <dependencies>
@@ -73,16 +72,6 @@
         </dependency>
     </dependencies>
 
-    <build>
-        <finalName>spring-hibernate-3</finalName>
-        <resources>
-            <resource>
-                <directory>src/main/resources</directory>
-                <filtering>true</filtering>
-            </resource>
-        </resources>
-    </build>
-
     <properties>
         <!-- Spring -->
         <org.springframework.version>4.3.4.RELEASE</org.springframework.version>
diff --git a/persistence-modules/spring-hibernate-5/pom.xml b/persistence-modules/spring-hibernate-5/pom.xml
index 546dcb1ce0..8a8b6c15e3 100644
--- a/persistence-modules/spring-hibernate-5/pom.xml
+++ b/persistence-modules/spring-hibernate-5/pom.xml
@@ -8,9 +8,8 @@
 
     <parent>
         <groupId>com.baeldung</groupId>
-        <artifactId>parent-modules</artifactId>
+        <artifactId>persistence-modules</artifactId>
         <version>1.0.0-SNAPSHOT</version>
-        <relativePath>../../</relativePath>
     </parent>
 
     <dependencies>
@@ -125,16 +124,6 @@
 
     </dependencies>
 
-    <build>
-        <finalName>spring-hibernate-5</finalName>
-        <resources>
-            <resource>
-                <directory>src/main/resources</directory>
-                <filtering>true</filtering>
-            </resource>
-        </resources>
-    </build>
-
     <properties>
         <!-- Spring -->
         <org.springframework.version>5.0.2.RELEASE</org.springframework.version>
diff --git a/persistence-modules/spring-hibernate4/pom.xml b/persistence-modules/spring-hibernate4/pom.xml
index 41c7fdb098..5e931d5cff 100644
--- a/persistence-modules/spring-hibernate4/pom.xml
+++ b/persistence-modules/spring-hibernate4/pom.xml
@@ -136,16 +136,6 @@
 
     </dependencies>
 
-    <build>
-        <finalName>spring-hibernate4</finalName>
-        <resources>
-            <resource>
-                <directory>src/main/resources</directory>
-                <filtering>true</filtering>
-            </resource>
-        </resources>
-    </build>
-
     <properties>
         <!-- Spring -->
         <org.springframework.version>4.3.4.RELEASE</org.springframework.version>
@@ -166,15 +156,6 @@
 
         <!-- util -->
         <guava.version>19.0</guava.version>
-
-        <httpcore.version>4.4.1</httpcore.version>
-        <httpclient.version>4.5</httpclient.version>
-
-        <rest-assured.version>2.9.0</rest-assured.version>
-
-        <!-- maven plugins -->
-        <maven-resources-plugin.version>2.7</maven-resources-plugin.version>
-        <!-- <hibernate4-maven-plugin.version>1.1.0</hibernate4-maven-plugin.version> -->
     </properties>
 
 </project>
diff --git a/persistence-modules/spring-jpa/pom.xml b/persistence-modules/spring-jpa/pom.xml
index 4972a20cf6..ef05269c92 100644
--- a/persistence-modules/spring-jpa/pom.xml
+++ b/persistence-modules/spring-jpa/pom.xml
@@ -9,9 +9,8 @@
 
     <parent>
         <groupId>com.baeldung</groupId>
-        <artifactId>parent-modules</artifactId>
+        <artifactId>persistence-modules</artifactId>
         <version>1.0.0-SNAPSHOT</version>
-        <relativePath>../../</relativePath>
     </parent>
 
     <dependencies>
@@ -129,27 +128,6 @@
 
     </dependencies>
 
-    <build>
-        <finalName>spring-jpa</finalName>
-        <resources>
-            <resource>
-                <directory>src/main/resources</directory>
-                <filtering>true</filtering>
-            </resource>
-        </resources>
-        <plugins>
-            <plugin>
-                <groupId>org.apache.maven.plugins</groupId>
-                <artifactId>maven-war-plugin</artifactId>
-                <version>${maven-war-plugin.version}</version>
-                <configuration>
-                    <warSourceDirectory>src/main/webapp</warSourceDirectory>
-                    <failOnMissingWebXml>false</failOnMissingWebXml>
-                </configuration>
-            </plugin>
-        </plugins>
-    </build>
-
     <properties>
         <!-- Spring -->
         <org.springframework.version>5.1.5.RELEASE</org.springframework.version>
diff --git a/persistence-modules/spring-persistence-simple/pom.xml b/persistence-modules/spring-persistence-simple/pom.xml
index 3ecb9c3d7d..8a03310048 100644
--- a/persistence-modules/spring-persistence-simple/pom.xml
+++ b/persistence-modules/spring-persistence-simple/pom.xml
@@ -8,9 +8,8 @@
 
     <parent>
         <groupId>com.baeldung</groupId>
-        <artifactId>parent-modules</artifactId>
+        <artifactId>persistence-modules</artifactId>
         <version>1.0.0-SNAPSHOT</version>
-        <relativePath>../../</relativePath>
     </parent>
 
     <dependencies>
@@ -106,13 +105,6 @@
     </dependencies>
 
     <build>
-        <finalName>spring-persistence-simple</finalName>
-        <resources>
-            <resource>
-                <directory>src/main/resources</directory>
-                <filtering>true</filtering>
-            </resource>
-        </resources>
         <plugins>
             <plugin>
                 <groupId>com.mysema.maven</groupId>