Add java doc.

git-svn-id: https://svn.apache.org/repos/asf/creadur/rat/branches/gsoc@1548867 13f79535-47bb-0310-9956-ffa450edef68
Format Code.

git-svn-id: https://svn.apache.org/repos/asf/creadur/rat/branches/gsoc@1548868 13f79535-47bb-0310-9956-ffa450edef68
Add java doc.

git-svn-id: https://svn.apache.org/repos/asf/creadur/rat/branches/gsoc@1548869 13f79535-47bb-0310-9956-ffa450edef68