[BAEL-18774] - extracted versions into properties

spring-data-rest-querydsl/pom.xml

@@ -72,8 +72,8 @@
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-compiler-plugin</artifactId>
                 <configuration>
-                    <source>1.8</source>
-                    <target>1.8</target>
+                    <source>${maven.source}</source>
+                    <target>${maven.target}</target>
                     <compilerArgs>
                         <arg>-verbose</arg>
                         <arg>-parameters</arg>
@@ -83,7 +83,7 @@
             <plugin>
                 <groupId>com.mysema.maven</groupId>
                 <artifactId>apt-maven-plugin</artifactId>
-                <version>1.1.3</version>
+                <version>${mysema.version}</version>
                 <executions>
                     <execution>
                         <phase>generate-sources</phase>
@@ -99,5 +99,10 @@
             </plugin>
         </plugins>
     </build>
+    <properties>
+        <maven.source>1.8</maven.source>
+        <maven.target>1.8</maven.target>
+        <mysema.version>1.1.3</mysema.version>
+    </properties>
 
 </project>