fix jar creation; confirmed fix threading/race condition causing intermittent socket errors by refactoring socket creation from send/receive threads, synchronized to avoid interleaved reentry.  unit tests all passing.

fix threading/race condition causing intermittent socket errors by refactoring socket creation from send/receive threads, synchronized to avoid interleaved reentry.  unit tests all passing.

fix threading/race condition causing intermittent socket errors by refactoring socket creation from send/receive threads, synchronized to avoid interleaved reentry

refactored invocation sequence and paths, successful rebuild; all tests passed with no network reattempts needed