@trivial javadoc

git-svn-id: https://svn.apache.org/repos/asf/jackrabbit/oak/trunk@1574613 13f79535-47bb-0310-9956-ffa450edef68
@trivial adding another test

git-svn-id: https://svn.apache.org/repos/asf/jackrabbit/oak/trunk@1574614 13f79535-47bb-0310-9956-ffa450edef68