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)

spring-swagger-codegen/spring-swagger-codegen-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.baeldung</groupId>
@@ -16,7 +16,7 @@
         <dependency>
             <groupId>com.baeldung</groupId>
             <artifactId>spring-swagger-codegen-api-client</artifactId>
-            <version>0.0.1-SNAPSHOT</version>
+            <version>${spring-swagger-codegen-api-client.version}</version>
         </dependency>
         <dependency>
             <groupId>org.springframework.boot</groupId>
@@ -24,11 +24,6 @@
         </dependency>
     </dependencies>
 
-    <properties>
-        <java.version>1.8</java.version>
-    </properties>
-
-
     <build>
         <plugins>
             <plugin>
@@ -38,4 +33,9 @@
         </plugins>
     </build>
 
+    <properties>
+        <java.version>1.8</java.version>
+        <spring-swagger-codegen-api-client.version>0.0.1-SNAPSHOT</spring-swagger-codegen-api-client.version>
+    </properties>
+
 </project>