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Bug 165335

Summary:	Deadlock in OpenIDE-request-processor-8
Product:	editor	Reporter:	mikael <mikael>
Component:	Parsing & Indexing	Assignee:	Jan Jancura <jjancura>
Status:	RESOLVED FIXED
Severity:	blocker	Keywords:	RANDOM, THREAD
Priority:	P3
Version:	6.x
Hardware:	PC
OS:	Linux
Issue Type:	DEFECT	Exception Reporter:

Description mikael 2009-05-16 21:47:27 UTC

NetBeans IDE Dev 200905140201
From JConsole:
Name: OpenIDE-request-processor-8
State: BLOCKED on java.lang.Object@3d6f39ca owned by: Java Source Worker Thread
Total blocked: 57  Total waited: 39

Name: Java Source Worker Thread
State: BLOCKED on org.netbeans.modules.parsing.impl.TaskProcessor$InternalLock@3c9a1023 owned by:
OpenIDE-request-processor-8
Total blocked: 1,435  Total waited: 1,061

Comment 1 mikael 2009-05-16 21:49:12 UTC

Name: OpenIDE-request-processor-8
State: BLOCKED on java.lang.Object@3d6f39ca owned by: Java Source Worker Thread
Total blocked: 57  Total waited: 39

Stack trace: 
org.netbeans.modules.parsing.impl.TaskProcessor$CurrentRequestReference.cancelCompleted(TaskProcessor.java:1037)
org.netbeans.modules.parsing.impl.TaskProcessor.handleAddRequests(TaskProcessor.java:501)
org.netbeans.modules.parsing.impl.TaskProcessor.addPhaseCompletionTasks(TaskProcessor.java:306)
org.netbeans.modules.parsing.impl.TaskProcessor.updatePhaseCompletionTask(TaskProcessor.java:400)
   - locked org.netbeans.modules.parsing.impl.TaskProcessor$InternalLock@3c9a1023
org.netbeans.modules.parsing.impl.SourceCache.scheduleTasks(SourceCache.java:425)
org.netbeans.modules.parsing.spi.Scheduler$1.run(Scheduler.java:155)
org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:576)
org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:1013)


Name: Java Source Worker Thread
State: BLOCKED on org.netbeans.modules.parsing.impl.TaskProcessor$InternalLock@3c9a1023 owned by:
OpenIDE-request-processor-8
Total blocked: 1,435  Total waited: 1,061

Stack trace: 
org.netbeans.modules.parsing.impl.SourceCache.getSnapshot(SourceCache.java:114)
org.netbeans.modules.parsing.impl.TaskProcessor$CurrentRequestReference.setCurrentTask(TaskProcessor.java:895)
   - locked java.lang.Object@3d6f39ca
org.netbeans.modules.parsing.impl.TaskProcessor$CompilationJob.run(TaskProcessor.java:706)
java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441)
java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
java.util.concurrent.FutureTask.run(FutureTask.java:138)
java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
java.lang.Thread.run(Thread.java:619)

Comment 2 Andrei Chistiakov 2009-05-17 22:30:02 UTC

Could you please provide steps to reproduce the issue along with thread dump. http://wiki.netbeans.org/GenerateThreadDump
Thanks

Comment 3 mikael 2009-05-18 07:58:00 UTC

I had just opened my second Java source file, not doing anything in particular. The stacktrace of the two deadlocked
threads are in my comments. Concurrency issues are not easily repoduced. I'l append a full stacktrace if I encounter the
problem again.

Comment 4 Vitezslav Stejskal 2009-06-08 16:54:40 UTC

I don't have the issue number at hand, but this is already fixed, please use newer build.