Bradley Wagner wrote:
> Ok, I have some information to add here. I was able to get thread dumps with
> "jstack <pid>" (very handy!) because "kill -3" wouldn't work on a hung
> process.
> I've listed 3 consecutive tests that I run and the thread is blocked at the
> time the process is hung.

That isn't the way to analyse this. It is almost impossible to detect a
hung thread from a single thread dump.

For a single hang, take three thread dumps ~10s apart and then examine
those to see which thread(s) has(have) not progressed between dumps.


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