marked as final to make the clone method work correctly.

git-svn-id: https://hudson.dev.java.net/svn/hudson/trunk/hudson/main@11287 71c3de6d-444a-0410-be80-ed276b4c234a

core/src/main/java/hudson/util/ArgumentListBuilder.java

@@ -13,7 +13,7 @@ import java.io.Serializable;
  *
  * @author Kohsuke Kawaguchi
  */
-public class ArgumentListBuilder implements Serializable {
+public final class ArgumentListBuilder implements Serializable {
     private final List<String> args = new ArrayList<String>();
 
     public ArgumentListBuilder add(Object a) {