[UIMA-2520] Fix ConcurrentModificationException in UIMA-AS

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 2.4.0AS
• Fix Version/s: 2.4.2AS
• Component/s: Async Scaleout
• Assignee: Jaroslaw Cwiklik
• Reporter: Jaroslaw Cwiklik
• Created: 12/Dec/12 19:33
• Updated: 12/Dec/12 19:35
• Resolved: 12/Dec/12 19:35

Description

When running uima-as with a logger configured at FINE or FINEST, ConcurrentModificationException is thrown from one of the methods which is only called when log level > INFO. The dumpPendingReplyList() method iterates over a list which is concurrently being updated by another thread. Synchronize access to the list to prevent the exception.