Bael 5249 cleanup (#4108)

* Added parent module on poms that have no parent defined

* Removed dependency reduced pom from undertow module

* [BAEL-5249] - 21.02 - pom cleanup - formatted pom.xml

core-java-sun/pom.xml

@@ -5,13 +5,13 @@
     <version>0.1.0-SNAPSHOT</version>
     <packaging>jar</packaging>
     <name>core-java-sun</name>
-	
-	<parent>
+
+    <parent>
         <groupId>com.baeldung</groupId>
         <artifactId>parent-modules</artifactId>
         <version>1.0.0-SNAPSHOT</version>
     </parent>
-	
+
     <dependencies>
         <!-- utils -->
         <dependency>
@@ -329,7 +329,7 @@
                         <argument>-Xmx300m</argument>
                         <argument>-XX:+UseParallelGC</argument>
                         <argument>-classpath</argument>
-                        <classpath />
+                        <classpath/>
                         <argument>com.baeldung.outofmemoryerror.OutOfMemoryGCLimitExceed</argument>
                     </arguments>
                 </configuration>
@@ -384,7 +384,7 @@
                                     <executable>java</executable>
                                     <arguments>
                                         <argument>-classpath</argument>
-                                        <classpath />
+                                        <classpath/>
                                         <argument>org.openjdk.jmh.Main</argument>
                                         <argument>.*</argument>
                                     </arguments>
@@ -432,8 +432,8 @@
         <!-- 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>
+        <sun-tools.version>1.8.0</sun-tools.version>
+        <spring-web.version>4.3.4.RELEASE</spring-web.version>
     </properties>
-	
+
 </project>