Uimacpp logging facility is not thread safe
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Key: UIMA-1049
URL: https://issues.apache.org/jira/browse/UIMA-1049
Project: UIMA
Issue Type: Bug
Components: C++ Framework
Reporter: Bhavani Iyer
Multiple instances of a C++ annotator may be run when the C++ annotator is run
within a CPM with multiple parallel pipelines or when the C++ annotator is
deployed as a UIMA AS service configured to start multiple instances. In both
cases, when the JNI interface to logging is used, the call to the logging
facility results in the exception,
Exception in thread "pool-1-thread-2" and the log message is not written.
The problem does not appear when the C++ service is run in the natively using
the ActiveMQ C++ serivce wrapper since the wrapper implements its own
synchronization for logging.
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