[GitHub] activemq-artemis issue #1144: ARTEMIS-1078: Improved thread pool

[bgutjahr <gi...@git.apache.org>]

Github user bgutjahr commented on the issue:

    https://github.com/apache/activemq-artemis/pull/1144
  
    I replaced my code with a new implemented. I could not get rid of using synchronization, since the timeout-handle block in poll has to be synchronized with offer. But I made a couple of improvements:
    1. I used a private lock object to synchronize on
    2. I added comments to explain how the code works
    3. I fixed a race condition that had been caused by using queue.size(), which changed within super.poll/take calls by now thread-safely maintaining the delta beween queue tasks and idle threads.


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