Jim Challenger created UIMA-4587:
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             Summary: DUCC SM race: rapid unregister/deregister can corrupt 
state.
                 Key: UIMA-4587
                 URL: https://issues.apache.org/jira/browse/UIMA-4587
             Project: UIMA
          Issue Type: Bug
          Components: DUCC
    Affects Versions: 2.0.0-Ducc
            Reporter: Jim Challenger
            Assignee: Jim Challenger


If an unregister followed by a very quick register for a service with the same 
endpoint is done, the internal tables managing these regs can get corrupted.  
The problem appears to be missing 'synchronized' around the CLI-based methods.



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