Fix miscellaneous problems in UIMA AS code reported by Findbugs
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Key: UIMA-2239
URL: https://issues.apache.org/jira/browse/UIMA-2239
Project: UIMA
Issue Type: Bug
Components: Async Scaleout
Reporter: Jerry Cwiklik
Assignee: Jerry Cwiklik
Priority: Minor
Fix For: 2.3.2AS
The latest round of changes introduced a bunch of issues detected by Findbugs,
including inconsistent synchronization, possible derefrencing thu null pointer,
etc
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