Merge some java gen fixes from Johan Oskarsson

Summary: Making Isset inner classes static because they don't need to reference their owner, and killing some unused variables.

Reviewed By: dreiss


git-svn-id: https://svn.apache.org/repos/asf/incubator/thrift/trunk@665244 13f79535-47bb-0310-9956-ffa450edef68
1 file changed