[UIMA-2317] Fix a Deadlock in UIMA AS client

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 2.4.0AS
• Component/s: Async Scaleout
• Assignee: Jaroslaw Cwiklik
• Reporter: Jaroslaw Cwiklik
• Created: 06/Jan/12 21:42
• Updated: 10/Jan/12 15:08
• Resolved: 10/Jan/12 15:08

Description

UIMA AS client code uses double synchronization on the same lock for no reason. Also, in some cases code uses more than one lock which can cause a deadlock if another thread also tries to acquire the same locks. This has only been seen/reported once. Relax use of synchronization and refactor code to prevent deadlocks.