[UIMA-3788] Fix UIMA-AS java.lang.IllegalStateException: Timer already cancelled.

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.4.2AS
• Fix Version/s: 2.6.0AS
• Component/s: Async Scaleout
• Assignee: Jaroslaw Cwiklik
• Reporter: Jaroslaw Cwiklik
• Created: 29/Apr/14 17:27
• Updated: 02/May/14 16:53
• Resolved: 02/May/14 16:53

Description

Looks like another race condition. The "java.lang.IllegalStateException: Timer already cancelled" usually occurs when one thread cancels a Timer, while another tries to start it. Supporting stack trace:

26 Apr 2014 12:37:27,859 INFO JD.WorkItemStateKeeper - record N/A seqNo:1120214 start
26 Apr 2014 12:37:27,862 INFO JD.WorkItemStateKeeper - record N/A seqNo:1120214 queued
26 Apr 2014 12:37:27,864 INFO JD.WorkItemStateKeeper - record N/A seqNo:1120214 operating
26 Apr 2014 12:37:27,866 INFO JD.WorkItemStateKeeper - record N/A seqNo:1120214 operating
26 Apr 2014 12:37:27,900 INFO JD.WorkItemStateKeeper - record N/A seqNo:1120212 ended
Apr 26, 2014 12:37:27 PM org.apache.uima.adapter.jms.client.BaseUIMAAsynchronousEngineCommon_impl$2 onMessage
WARNING:
java.lang.IllegalStateException: Timer already cancelled.
at java.util.Timer.sched(Timer.java:408)
at java.util.Timer.schedule(Timer.java:219)
at org.apache.uima.aae.delegate.Delegate.startDelegateTimer(Delegate.java:726)
at org.apache.uima.aae.delegate.Delegate.removeCasFromOutstandingList(Delegate.java:598)
at org.apache.uima.aae.delegate.Delegate.removeCasFromOutstandingList(Delegate.java:513)
at org.apache.uima.adapter.jms.client.BaseUIMAAsynchronousEngineCommon_impl.handleProcessReply(BaseUIMAAsynchronousEngi
neCommon_impl.java:1434)
at org.apache.uima.adapter.jms.client.BaseUIMAAsynchronousEngineCommon_impl$2.run(BaseUIMAAsynchronousEngineCommon_impl
.java:2031)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1156)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:626)
at java.lang.Thread.run(Thread.java:780)