[MPOM-142] Upgrade maven-compiler-plugin to 3.6.0.

git-svn-id: https://svn.apache.org/repos/asf/maven/pom/trunk@1774817 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/asf/pom.xml b/asf/pom.xml
index e02f4af..ca677ff 100644
--- a/asf/pom.xml
+++ b/asf/pom.xml
@@ -130,7 +130,7 @@
         <plugin>
           <groupId>org.apache.maven.plugins</groupId>
           <artifactId>maven-compiler-plugin</artifactId>
-          <version>3.5.1</version>
+          <version>3.6.0</version>
         </plugin>
         <plugin>
           <groupId>org.apache.maven.plugins</groupId>