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From "Jerry Cwiklik (Created) (JIRA)" <...@uima.apache.org>
Subject [jira] [Created] (UIMA-2308) UIMA CasCreationUtils throws NPE when multiple threads in UIMA AS call defineCasPool
Date Mon, 12 Dec 2011 21:35:31 GMT
UIMA CasCreationUtils throws NPE when multiple threads in UIMA AS call defineCasPool
------------------------------------------------------------------------------------

                 Key: UIMA-2308
                 URL: https://issues.apache.org/jira/browse/UIMA-2308
             Project: UIMA
          Issue Type: Bug
            Reporter: Jerry Cwiklik
            Assignee: Jerry Cwiklik
             Fix For: 2.4.0AS


UIMA CasCreationUtils throws NPE from setupTypePriorities() when UIMA AS scales AEs in multiple
threads. The NPE is due to thread safety issue in UIMA caused by lazy initialization of CAS
pools. Seems to be triggered when large type system is used. Synchronize UIMA AS org.apache.uima.aae.EECasManager_impl.defineCasPool()
to make sure only one thread at a time executes the code.

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