diff --git a/core-java-modules/core-java-arrays-guides/pom.xml b/core-java-modules/core-java-arrays-guides/pom.xml
index cc67add9e3..12da6b2145 100644
--- a/core-java-modules/core-java-arrays-guides/pom.xml
+++ b/core-java-modules/core-java-arrays-guides/pom.xml
@@ -7,10 +7,6 @@
     <name>core-java-arrays-guides</name>
     <packaging>jar</packaging>
 
-    <properties>
-        <system-stubs.jupiter.version>2.1.5</system-stubs.jupiter.version>
-    </properties>
-
     <parent>
         <artifactId>core-java-modules</artifactId>
         <groupId>com.baeldung.core-java-modules</groupId>
@@ -34,7 +30,10 @@
             <version>${system-stubs.jupiter.version}</version>
             <scope>test</scope>
         </dependency>
-
     </dependencies>
 
+    <properties>
+        <system-stubs.jupiter.version>2.1.5</system-stubs.jupiter.version>
+    </properties>
+
 </project>
diff --git a/core-java-modules/core-java-collections-5/pom.xml b/core-java-modules/core-java-collections-5/pom.xml
index da58ef1db5..06d872ec37 100644
--- a/core-java-modules/core-java-collections-5/pom.xml
+++ b/core-java-modules/core-java-collections-5/pom.xml
@@ -5,18 +5,6 @@
     <modelVersion>4.0.0</modelVersion>
     <artifactId>core-java-collections-5</artifactId>
     <name>core-java-collections-5</name>
-    <build>
-        <plugins>
-            <plugin>
-                <groupId>org.apache.maven.plugins</groupId>
-                <artifactId>maven-compiler-plugin</artifactId>
-                <configuration>
-                    <source>9</source>
-                    <target>9</target>
-                </configuration>
-            </plugin>
-        </plugins>
-    </build>
     <packaging>jar</packaging>
 
     <parent>
@@ -61,6 +49,19 @@
         </dependency>
     </dependencies>
 
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-compiler-plugin</artifactId>
+                <configuration>
+                    <source>9</source>
+                    <target>9</target>
+                </configuration>
+            </plugin>
+        </plugins>
+    </build>
+
     <properties>
         <junit.version>5.9.2</junit.version>
         <roaringbitmap.version>0.9.38</roaringbitmap.version>
diff --git a/core-java-modules/core-java-collections-list-5/pom.xml b/core-java-modules/core-java-collections-list-5/pom.xml
index 10c0ded0c3..d62263eb63 100644
--- a/core-java-modules/core-java-collections-list-5/pom.xml
+++ b/core-java-modules/core-java-collections-list-5/pom.xml
@@ -55,7 +55,6 @@
             <version>${org.json.version}</version>
             <scope>test</scope>
         </dependency>
-
     </dependencies>
 
     <properties>
diff --git a/core-java-modules/core-java-io-apis-2/pom.xml b/core-java-modules/core-java-io-apis-2/pom.xml
index 579fa4a589..89ab6d163a 100644
--- a/core-java-modules/core-java-io-apis-2/pom.xml
+++ b/core-java-modules/core-java-io-apis-2/pom.xml
@@ -82,6 +82,7 @@
             <scope>test</scope>
         </dependency>
     </dependencies>
+
     <build>
         <finalName>core-java-io-apis-2</finalName>
         <resources>
@@ -91,6 +92,7 @@
             </resource>
         </resources>
     </build>
+
     <properties>
         <junit-jupiter-version>5.9.3</junit-jupiter-version>
     </properties>
diff --git a/core-java-modules/core-java-lang-6/pom.xml b/core-java-modules/core-java-lang-6/pom.xml
index 7bf2fafaa1..8f7f574e22 100644
--- a/core-java-modules/core-java-lang-6/pom.xml
+++ b/core-java-modules/core-java-lang-6/pom.xml
@@ -3,14 +3,14 @@
     xmlns="http://maven.apache.org/POM/4.0.0"
     xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
+    <artifactId>core-java-lang-6</artifactId>
+
     <parent>
         <groupId>com.baeldung.core-java-modules</groupId>
         <artifactId>core-java-modules</artifactId>
         <version>0.0.1-SNAPSHOT</version>
     </parent>
 
-    <artifactId>core-java-lang-6</artifactId>
-
     <dependencies>
         <!-- https://mvnrepository.com/artifact/org.mapstruct/mapstruct -->
         <dependency>
diff --git a/core-java-modules/core-java-lang-math/pom.xml b/core-java-modules/core-java-lang-math/pom.xml
index 118998991f..85e653930c 100644
--- a/core-java-modules/core-java-lang-math/pom.xml
+++ b/core-java-modules/core-java-lang-math/pom.xml
@@ -5,6 +5,14 @@
     <modelVersion>4.0.0</modelVersion>
     <artifactId>core-java-lang-math</artifactId>
     <name>core-java-lang-math</name>
+    <packaging>jar</packaging>
+
+    <parent>
+        <groupId>com.baeldung.core-java-modules</groupId>
+        <artifactId>core-java-modules</artifactId>
+        <version>0.0.1-SNAPSHOT</version>
+    </parent>
+
     <dependencies>
         <dependency>
             <groupId>org.projectlombok</groupId>
@@ -13,13 +21,6 @@
             <scope>compile</scope>
         </dependency>
     </dependencies>
-    <packaging>jar</packaging>
-
-    <parent>
-        <groupId>com.baeldung.core-java-modules</groupId>
-        <artifactId>core-java-modules</artifactId>
-        <version>0.0.1-SNAPSHOT</version>
-    </parent>
 
     <build>
         <finalName>core-java-lang-math</finalName>
diff --git a/core-java-modules/core-java-numbers-6/pom.xml b/core-java-modules/core-java-numbers-6/pom.xml
index 34e53056a4..a5ddcfc0ee 100644
--- a/core-java-modules/core-java-numbers-6/pom.xml
+++ b/core-java-modules/core-java-numbers-6/pom.xml
@@ -31,6 +31,7 @@
             <version>${guava.version}</version>
         </dependency>
     </dependencies>
+
     <build>
         <finalName>core-java-numbers-6</finalName>
         <resources>
@@ -44,4 +45,5 @@
     <properties>
         <commons-codec>1.16.0</commons-codec>
     </properties>
+
 </project>
\ No newline at end of file
diff --git a/core-java-modules/core-java-numbers-7/pom.xml b/core-java-modules/core-java-numbers-7/pom.xml
index dec3084108..3940a0b1d0 100644
--- a/core-java-modules/core-java-numbers-7/pom.xml
+++ b/core-java-modules/core-java-numbers-7/pom.xml
@@ -25,6 +25,7 @@
             <version>${guava.version}</version>
         </dependency>
     </dependencies>
+
     <build>
         <finalName>core-java-numbers-7</finalName>
         <resources>
@@ -34,4 +35,5 @@
             </resource>
         </resources>
     </build>
+
 </project>
\ No newline at end of file
diff --git a/core-java-modules/core-java-records/pom.xml b/core-java-modules/core-java-records/pom.xml
index 0caa1765fd..5968bbb344 100644
--- a/core-java-modules/core-java-records/pom.xml
+++ b/core-java-modules/core-java-records/pom.xml
@@ -2,14 +2,15 @@
 <project xmlns="http://maven.apache.org/POM/4.0.0"
     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
     xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <artifactId>core-java-records</artifactId>
+
     <parent>
         <artifactId>core-java-modules</artifactId>
         <groupId>com.baeldung.core-java-modules</groupId>
         <version>0.0.1-SNAPSHOT</version>
     </parent>
-    <modelVersion>4.0.0</modelVersion>
 
-    <artifactId>core-java-records</artifactId>
     <build>
         <plugins>
             <plugin>
diff --git a/core-java-modules/core-java-string-operations-6/pom.xml b/core-java-modules/core-java-string-operations-6/pom.xml
index 69deeea0d8..2cd7c6ad3e 100644
--- a/core-java-modules/core-java-string-operations-6/pom.xml
+++ b/core-java-modules/core-java-string-operations-6/pom.xml
@@ -12,6 +12,7 @@
         <artifactId>core-java-modules</artifactId>
         <version>0.0.1-SNAPSHOT</version>
     </parent>
+
     <dependencies>
         <dependency>
             <groupId>org.apache.commons</groupId>
diff --git a/core-java-modules/core-java-swing/pom.xml b/core-java-modules/core-java-swing/pom.xml
index 53a2e9b1ff..b46fe0f65a 100644
--- a/core-java-modules/core-java-swing/pom.xml
+++ b/core-java-modules/core-java-swing/pom.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0"
-         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>core-java-swing</artifactId>
     <name>core-java-swing</name>
@@ -12,6 +12,7 @@
         <artifactId>core-java-modules</artifactId>
         <version>0.0.1-SNAPSHOT</version>
     </parent>
+
     <properties>
         <maven.compiler.source>20</maven.compiler.source>
         <maven.compiler.target>20</maven.compiler.target>