THRIFT-713. java: Java compareTo method throws NPE when any field isn't set.

This patch fixes a somewhat egregious bug in the generated compareTo for non-union structs and avoids possible NPEs.

git-svn-id: https://svn.apache.org/repos/asf/incubator/thrift/trunk@915499 13f79535-47bb-0310-9956-ffa450edef68
3 files changed