UIMA CasCreationUtils throws NPE when multiple threads in UIMA AS call
defineCasPool
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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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