Jerry Cwiklik created UIMA-3786:
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             Summary: Fix UIMA-AS client race condition 
                 Key: UIMA-3786
                 URL: https://issues.apache.org/jira/browse/UIMA-3786
             Project: UIMA
          Issue Type: Bug
          Components: Async Scaleout
    Affects Versions: 2.4.2AS
            Reporter: Jerry Cwiklik
            Assignee: Jerry Cwiklik
             Fix For: 2.5.0AS


Looks like there is a race condition that results in calling onBeforeProcess() 
callback twice. Seems like a thread handling Process reply is racing with 
another thread handling service ACK. Synchronize code to make sure only one of 
the two threads calls onBeforeProcess() callback



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