THRIFT-145. java: Make TNonblockingServer more robust against errors

TNonblockingServer was throwing a null pointer exception in certain cases.
We're not really sure what the root cause is, but this change prevents
the exception and also improves logging of certain undesirable conditions.


git-svn-id: https://svn.apache.org/repos/asf/incubator/thrift/trunk@702661 13f79535-47bb-0310-9956-ffa450edef68
1 file changed