Fix interemittent hangs in UIMA AS when stopping the JMS listener
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Key: UIMA-1439
URL: https://issues.apache.org/jira/browse/UIMA-1439
Project: UIMA
Issue Type: Bug
Components: Async Scaleout
Reporter: Jerry Cwiklik
Assignee: Jerry Cwiklik
When stopping UIMA AS listener, the ThreadPoolTaskExecutor shutdown method is
called and the code than waits for all threads managed by the executor to stop.
The problem is that listener's stop method may be called from one of the
threads that are being managed by the executor. The executor tries to stop the
thread and the thread tries to stop the executor. This leads to a hang.
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