Removes duplicated warning

git-svn-id: https://svn.apache.org/repos/asf/struts/struts2/trunk@1428427 13f79535-47bb-0310-9956-ffa450edef68
Adds additional SNIPPET

git-svn-id: https://svn.apache.org/repos/asf/struts/struts2/trunk@1428430 13f79535-47bb-0310-9956-ffa450edef68
Adds additional SNIPPET

git-svn-id: https://svn.apache.org/repos/asf/struts/struts2/trunk@1428431 13f79535-47bb-0310-9956-ffa450edef68