[MSHARED-371] Increased chance of java8 compliance by updating to asm5.x based plexus-component-*

git-svn-id: https://svn.apache.org/repos/asf/maven/shared/trunk@1633997 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/pom.xml b/pom.xml
index 99e672f..e06bd31 100644
--- a/pom.xml
+++ b/pom.xml
@@ -110,6 +110,7 @@
       <plugin>
         <groupId>org.codehaus.plexus</groupId>
         <artifactId>plexus-component-metadata</artifactId>
+        <version>1.6</version>
         <executions>
           <execution>
             <goals>