missing @Override

git-svn-id: https://svn.apache.org/repos/asf/jackrabbit/oak/trunk@1437173 13f79535-47bb-0310-9956-ffa450edef68
exception never thrown

git-svn-id: https://svn.apache.org/repos/asf/jackrabbit/oak/trunk@1437174 13f79535-47bb-0310-9956-ffa450edef68
javadoc

git-svn-id: https://svn.apache.org/repos/asf/jackrabbit/oak/trunk@1437176 13f79535-47bb-0310-9956-ffa450edef68