[MPOM-63] defined m-compiler-p target version to avoid plugin-tools report limitation

git-svn-id: https://svn.apache.org/repos/asf/maven/pom/trunk@1637748 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/asf/pom.xml b/asf/pom.xml
index a452ea0..6afb689 100644
--- a/asf/pom.xml
+++ b/asf/pom.xml
@@ -130,6 +130,10 @@
           <groupId>org.apache.maven.plugins</groupId>
           <artifactId>maven-compiler-plugin</artifactId>
           <version>3.1</version>
+          <configuration>
+            <source>${maven.compiler.source}</source>
+            <target>${maven.compiler.target}</target>
+          </configuration>
         </plugin>
         <plugin>
           <groupId>org.apache.maven.plugins</groupId>