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Bug 340892

Summary:	dependency resolution blocks user operations
Product:	z_Archived	Reporter:	Igor Fedorenko <igor>
Component:	m2e	Assignee:	Paul Tatavu <vladt>
Status:	RESOLVED FIXED	QA Contact:
Severity:	normal
Priority:	P3	CC:	vladt
Version:	unspecified
Target Milestone:	---
Hardware:	PC
OS:	Windows XP
Whiteboard:

Description Igor Fedorenko

2011-03-24 13:48:07 EDT

Steps to reproduce 

* import nexus oss sources into fresh m2e workspace and close all projects
* stop m2e
* purge local repository
* go to an airport and connect to a free&throttled wifi
* start m2e and open nexus-proxy project
* open a java source file, make a change, save

expected behaviour: save operation completes even through update dependencies job is running in background
observed behaviour: save operation is blocked until update dependencies job completes


Stack trace of dependency resolution thread (does not show job locking rules, unfortunately)


"Worker-116" prio=6 tid=0x38f26000 nid=0x218 waiting on condition [0x3f99e000]
   java.lang.Thread.State: WAITING (parking)
	at sun.misc.Unsafe.park(Native Method)
	- parking to wait for  <0x1ab14740> (a java.util.concurrent.CountDownLatch$Sync)
	at java.util.concurrent.locks.LockSupport.park(LockSupport.java:158)
	at java.util.concurrent.locks.AbstractQueuedSynchronizer.parkAndCheckInterrupt(AbstractQueuedSynchronizer.java:811)
	at java.util.concurrent.locks.AbstractQueuedSynchronizer.doAcquireSharedInterruptibly(AbstractQueuedSynchronizer.java:969)
	at java.util.concurrent.locks.AbstractQueuedSynchronizer.acquireSharedInterruptibly(AbstractQueuedSynchronizer.java:1281)
	at java.util.concurrent.CountDownLatch.await(CountDownLatch.java:207)
	at org.sonatype.aether.connector.async.AsyncRepositoryConnector.get(AsyncRepositoryConnector.java:276)
	at org.sonatype.aether.impl.internal.DefaultArtifactResolver.resolve(DefaultArtifactResolver.java:447)
	at org.sonatype.aether.impl.internal.DefaultArtifactResolver.resolveArtifacts(DefaultArtifactResolver.java:218)
	at org.sonatype.aether.impl.internal.DefaultRepositorySystem.resolveArtifacts(DefaultRepositorySystem.java:326)
	at org.sonatype.aether.impl.internal.DefaultRepositorySystem.resolveDependencies(DefaultRepositorySystem.java:356)
	at org.apache.maven.project.DefaultProjectDependenciesResolver.resolve(DefaultProjectDependenciesResolver.java:150)
	at org.apache.maven.project.DefaultProjectBuilder.build(DefaultProjectBuilder.java:159)
	at org.apache.maven.project.DefaultProjectBuilder.build(DefaultProjectBuilder.java:98)
	at org.eclipse.m2e.core.internal.embedder.MavenImpl.readProject(MavenImpl.java:494)
	at org.eclipse.m2e.core.internal.project.registry.DefaultMavenDependencyResolver.resolveProjectDependencies(DefaultMavenDependencyResolver.java:52)
	at org.eclipse.m2e.core.internal.project.registry.ProjectRegistryManager.refresh(ProjectRegistryManager.java:422)
	at org.eclipse.m2e.core.internal.project.registry.ProjectRegistryManager.refresh(ProjectRegistryManager.java:343)
	at org.eclipse.m2e.core.internal.project.registry.ProjectRegistryRefreshJob.run(ProjectRegistryRefreshJob.java:90)
	at org.eclipse.core.internal.jobs.Worker.run(Worker.java:54)

Comment 1 Igor Fedorenko

2011-03-28 17:25:03 EDT

Got another similar lockup, this time saving POM.xml file right after triggering long dependency update job by adding a dependency. Full thread dump while Eclipse with locked




2011-03-28 17:19:07
Full thread dump Java HotSpot(TM) 64-Bit Server VM (19.0-b09 mixed mode):

"AsyncHttpClient-Reaper" daemon prio=10 tid=0x000000004279f800 nid=0x306c waiting on condition [0x00007f16bc2e9000]
   java.lang.Thread.State: TIMED_WAITING (parking)
	at sun.misc.Unsafe.park(Native Method)
	- parking to wait for  <0x00000000fdf60f30> (a java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
	at java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:198)
	at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2025)
	at java.util.concurrent.DelayQueue.take(DelayQueue.java:164)
	at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:609)
	at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:602)
	at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:947)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:907)
	at java.lang.Thread.run(Thread.java:662)

   Locked ownable synchronizers:
	- None

"New I/O client worker #9-2" daemon prio=10 tid=0x00000000410e3800 nid=0x306b runnable [0x00007f16bc0e7000]
   java.lang.Thread.State: RUNNABLE
	at sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)
	at sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:210)
	at sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:65)
	at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:69)
	- locked <0x00000000fdfce1e0> (a sun.nio.ch.Util$2)
	- locked <0x00000000fdfce1d0> (a java.util.Collections$UnmodifiableSet)
	- locked <0x00000000fdfcdfc8> (a sun.nio.ch.EPollSelectorImpl)
	at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:80)
	at org.jboss.netty.channel.socket.nio.SelectorUtil.select(SelectorUtil.java:38)
	at org.jboss.netty.channel.socket.nio.NioWorker.run(NioWorker.java:163)
	at org.jboss.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108)
	at org.jboss.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:44)
	at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
	at java.lang.Thread.run(Thread.java:662)

   Locked ownable synchronizers:
	- <0x00000000fdfce520> (a java.util.concurrent.locks.ReentrantLock$NonfairSync)

"AsyncHttpClient-Reaper" daemon prio=10 tid=0x00007f16c8c28800 nid=0x306a waiting on condition [0x00007f16bc820000]
   java.lang.Thread.State: TIMED_WAITING (parking)
	at sun.misc.Unsafe.park(Native Method)
	- parking to wait for  <0x00000000fdf60f30> (a java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
	at java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:198)
	at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2025)
	at java.util.concurrent.DelayQueue.take(DelayQueue.java:164)
	at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:609)
	at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:602)
	at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:947)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:907)
	at java.lang.Thread.run(Thread.java:662)

   Locked ownable synchronizers:
	- None

"New I/O client worker #9-1" daemon prio=10 tid=0x00000000411f7000 nid=0x3069 runnable [0x00007f16bc1e8000]
   java.lang.Thread.State: RUNNABLE
	at sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)
	at sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:210)
	at sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:65)
	at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:69)
	- locked <0x00000000fdfcd7a0> (a sun.nio.ch.Util$2)
	- locked <0x00000000fdfcd790> (a java.util.Collections$UnmodifiableSet)
	- locked <0x00000000fdfcd588> (a sun.nio.ch.EPollSelectorImpl)
	at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:80)
	at org.jboss.netty.channel.socket.nio.SelectorUtil.select(SelectorUtil.java:38)
	at org.jboss.netty.channel.socket.nio.NioWorker.run(NioWorker.java:163)
	at org.jboss.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108)
	at org.jboss.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:44)
	at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
	at java.lang.Thread.run(Thread.java:662)

   Locked ownable synchronizers:
	- <0x00000000fdfcdae0> (a java.util.concurrent.locks.ReentrantLock$NonfairSync)

"pool-17-thread-1" prio=10 tid=0x00007f16c8c28000 nid=0x3068 waiting on condition [0x00007f16bb993000]
   java.lang.Thread.State: TIMED_WAITING (parking)
	at sun.misc.Unsafe.park(Native Method)
	- parking to wait for  <0x00000000fdf62d78> (a java.util.concurrent.SynchronousQueue$TransferStack)
	at java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:198)
	at java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:424)
	at java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:323)
	at java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:874)
	at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:945)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:907)
	at java.lang.Thread.run(Thread.java:662)

   Locked ownable synchronizers:
	- None

"Attach Listener" daemon prio=10 tid=0x0000000042229000 nid=0x3059 waiting on condition [0x0000000000000000]
   java.lang.Thread.State: RUNNABLE

   Locked ownable synchronizers:
	- None

"AsyncHttpClient-Callback" daemon prio=10 tid=0x0000000042a96800 nid=0x2fa0 waiting on condition [0x00007f16bbee5000]
   java.lang.Thread.State: TIMED_WAITING (parking)
	at sun.misc.Unsafe.park(Native Method)
	- parking to wait for  <0x00000000ff5f46d0> (a java.util.concurrent.SynchronousQueue$TransferStack)
	at java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:198)
	at java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:424)
	at java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:323)
	at java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:874)
	at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:945)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:907)
	at java.lang.Thread.run(Thread.java:662)

   Locked ownable synchronizers:
	- None

"AsyncHttpClient-Callback" daemon prio=10 tid=0x000000004100e000 nid=0x2f8c waiting on condition [0x00007f16bbb95000]
   java.lang.Thread.State: TIMED_WAITING (parking)
	at sun.misc.Unsafe.park(Native Method)
	- parking to wait for  <0x00000000f26a4468> (a java.util.concurrent.SynchronousQueue$TransferStack)
	at java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:198)
	at java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:424)
	at java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:323)
	at java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:874)
	at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:945)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:907)
	at java.lang.Thread.run(Thread.java:662)

   Locked ownable synchronizers:
	- None

"Worker-6" prio=10 tid=0x00007f16c858b000 nid=0x2f80 in Object.wait() [0x00007f16bbfe6000]
   java.lang.Thread.State: TIMED_WAITING (on object monitor)
	at java.lang.Object.wait(Native Method)
	- waiting on <0x00000000f10a3f30> (a org.eclipse.core.internal.jobs.WorkerPool)
	at org.eclipse.core.internal.jobs.WorkerPool.sleep(WorkerPool.java:188)
	- locked <0x00000000f10a3f30> (a org.eclipse.core.internal.jobs.WorkerPool)
	at org.eclipse.core.internal.jobs.WorkerPool.startJob(WorkerPool.java:220)
	at org.eclipse.core.internal.jobs.Worker.run(Worker.java:50)

   Locked ownable synchronizers:
	- None

"Worker-5" prio=10 tid=0x0000000041089800 nid=0x2f18 in Object.wait() [0x00007f16bc921000]
   java.lang.Thread.State: TIMED_WAITING (on object monitor)
	at java.lang.Object.wait(Native Method)
	- waiting on <0x00000000ff6c5d10> (a org.eclipse.core.internal.jobs.Semaphore)
	at org.eclipse.core.internal.jobs.Semaphore.acquire(Semaphore.java:39)
	- locked <0x00000000ff6c5d10> (a org.eclipse.core.internal.jobs.Semaphore)
	at org.eclipse.core.internal.jobs.OrderedLock.doAcquire(OrderedLock.java:176)
	at org.eclipse.core.internal.jobs.OrderedLock.acquire(OrderedLock.java:110)
	at org.eclipse.core.internal.jobs.OrderedLock.acquire(OrderedLock.java:84)
	at org.eclipse.wst.sse.core.internal.text.JobSafeStructuredDocument.acquireLock(JobSafeStructuredDocument.java:65)
	at org.eclipse.wst.sse.core.internal.text.BasicStructuredDocument.getStructuredDocumentRegions(BasicStructuredDocument.java:1774)
	at org.eclipse.wst.sse.ui.internal.projection.AbstractStructuredFoldingStrategy.reconcile(AbstractStructuredFoldingStrategy.java:182)
	at org.eclipse.wst.sse.ui.internal.reconcile.DocumentRegionProcessor.process(DocumentRegionProcessor.java:312)
	at org.eclipse.wst.sse.ui.internal.reconcile.StructuredRegionProcessor.process(StructuredRegionProcessor.java:258)
	at org.eclipse.wst.sse.ui.internal.reconcile.DirtyRegionProcessor.run(DirtyRegionProcessor.java:667)
	at org.eclipse.core.internal.jobs.Worker.run(Worker.java:54)

   Locked ownable synchronizers:
	- None

"Worker-4" prio=10 tid=0x0000000041237800 nid=0x2f17 waiting on condition [0x00007f16bca20000]
   java.lang.Thread.State: TIMED_WAITING (parking)
	at sun.misc.Unsafe.park(Native Method)
	- parking to wait for  <0x00000000fdfb2e40> (a java.util.concurrent.CountDownLatch$Sync)
	at java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:198)
	at java.util.concurrent.locks.AbstractQueuedSynchronizer.doAcquireSharedNanos(AbstractQueuedSynchronizer.java:1011)
	at java.util.concurrent.locks.AbstractQueuedSynchronizer.tryAcquireSharedNanos(AbstractQueuedSynchronizer.java:1303)
	at java.util.concurrent.CountDownLatch.await(CountDownLatch.java:253)
	at com.ning.http.client.providers.netty.NettyResponseFuture.get(NettyResponseFuture.java:195)
	at com.ning.http.client.providers.netty.NettyResponseFuture.get(NettyResponseFuture.java:179)
	at org.sonatype.aether.connector.async.AsyncRepositoryConnector.resourceExist(AsyncRepositoryConnector.java:1164)
	at org.sonatype.aether.connector.async.AsyncRepositoryConnector.access$2400(AsyncRepositoryConnector.java:89)
	at org.sonatype.aether.connector.async.AsyncRepositoryConnector$GetTask.run(AsyncRepositoryConnector.java:755)
	at org.sonatype.aether.connector.async.AsyncRepositoryConnector.get(AsyncRepositoryConnector.java:270)
	at org.sonatype.aether.impl.internal.DefaultArtifactResolver.resolve(DefaultArtifactResolver.java:460)
	at org.sonatype.aether.impl.internal.DefaultArtifactResolver.resolveArtifacts(DefaultArtifactResolver.java:220)
	at org.sonatype.aether.impl.internal.DefaultArtifactResolver.resolveArtifact(DefaultArtifactResolver.java:197)
	at org.apache.maven.repository.internal.DefaultArtifactDescriptorReader.loadPom(DefaultArtifactDescriptorReader.java:268)
	at org.apache.maven.repository.internal.DefaultArtifactDescriptorReader.readArtifactDescriptor(DefaultArtifactDescriptorReader.java:173)
	at org.sonatype.aether.impl.internal.DefaultDependencyCollector.process(DefaultDependencyCollector.java:419)
	at org.sonatype.aether.impl.internal.DefaultDependencyCollector.process(DefaultDependencyCollector.java:533)
	at org.sonatype.aether.impl.internal.DefaultDependencyCollector.process(DefaultDependencyCollector.java:533)
	at org.sonatype.aether.impl.internal.DefaultDependencyCollector.process(DefaultDependencyCollector.java:533)
	at org.sonatype.aether.impl.internal.DefaultDependencyCollector.collectDependencies(DefaultDependencyCollector.java:243)
	at org.sonatype.aether.impl.internal.DefaultRepositorySystem.collectDependencies(DefaultRepositorySystem.java:345)
	at org.apache.maven.project.DefaultProjectDependenciesResolver.resolve(DefaultProjectDependenciesResolver.java:119)
	at org.apache.maven.project.DefaultProjectBuilder.build(DefaultProjectBuilder.java:159)
	at org.apache.maven.project.DefaultProjectBuilder.build(DefaultProjectBuilder.java:98)
	at org.eclipse.m2e.core.internal.embedder.MavenImpl.readProject(MavenImpl.java:498)
	at org.eclipse.m2e.core.internal.project.registry.ProjectRegistryManager.readProjectWithDependencies(ProjectRegistryManager.java:680)
	at org.eclipse.m2e.core.internal.project.registry.ProjectRegistryManager.readProjectWithDependencies(ProjectRegistryManager.java:669)
	at org.eclipse.m2e.core.internal.project.registry.MavenProjectFacade.getMavenProject(MavenProjectFacade.java:205)
	- locked <0x00000000f13eeed8> (a org.eclipse.m2e.core.internal.project.registry.MavenProjectFacade)
	at org.eclipse.m2e.core.internal.project.WorkspaceStateWriter.mavenProjectChanged(WorkspaceStateWriter.java:58)
	at org.eclipse.m2e.core.internal.project.registry.ProjectRegistryManager.notifyProjectChangeListeners(ProjectRegistryManager.java:658)
	at org.eclipse.m2e.core.internal.project.registry.ProjectRegistryManager.applyMutableProjectRegistry(ProjectRegistryManager.java:789)
	at org.eclipse.m2e.core.internal.project.registry.ProjectRegistryManager.refresh(ProjectRegistryManager.java:328)
	at org.eclipse.m2e.core.project.MavenProjectManager.refresh(MavenProjectManager.java:69)
	at org.eclipse.m2e.core.internal.builder.MavenBuilder.build(MavenBuilder.java:122)
	at org.eclipse.core.internal.events.BuildManager$2.run(BuildManager.java:717)
	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
	at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:191)
	at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:228)
	at org.eclipse.core.internal.events.BuildManager$1.run(BuildManager.java:281)
	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
	at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:284)
	at org.eclipse.core.internal.events.BuildManager.basicBuildLoop(BuildManager.java:340)
	at org.eclipse.core.internal.events.BuildManager.build(BuildManager.java:363)
	at org.eclipse.core.internal.events.AutoBuildJob.doBuild(AutoBuildJob.java:143)
	at org.eclipse.core.internal.events.AutoBuildJob.run(AutoBuildJob.java:241)
	at org.eclipse.core.internal.jobs.Worker.run(Worker.java:54)

   Locked ownable synchronizers:
	- None

"Worker-3" prio=10 tid=0x00000000411cf800 nid=0x2f16 in Object.wait() [0x00007f16bcb23000]
   java.lang.Thread.State: TIMED_WAITING (on object monitor)
	at java.lang.Object.wait(Native Method)
	- waiting on <0x00000000f10a3f30> (a org.eclipse.core.internal.jobs.WorkerPool)
	at org.eclipse.core.internal.jobs.WorkerPool.sleep(WorkerPool.java:188)
	- locked <0x00000000f10a3f30> (a org.eclipse.core.internal.jobs.WorkerPool)
	at org.eclipse.core.internal.jobs.WorkerPool.startJob(WorkerPool.java:220)
	at org.eclipse.core.internal.jobs.Worker.run(Worker.java:50)

   Locked ownable synchronizers:
	- None

"Worker-2" prio=10 tid=0x000000004150b000 nid=0x2f15 in Object.wait() [0x00007f16cd8a6000]
   java.lang.Thread.State: TIMED_WAITING (on object monitor)
	at java.lang.Object.wait(Native Method)
	- waiting on <0x00000000ff76ccd0> (a org.eclipse.core.internal.jobs.Semaphore)
	at org.eclipse.core.internal.jobs.Semaphore.acquire(Semaphore.java:39)
	- locked <0x00000000ff76ccd0> (a org.eclipse.core.internal.jobs.Semaphore)
	at org.eclipse.core.internal.jobs.OrderedLock.doAcquire(OrderedLock.java:176)
	at org.eclipse.core.internal.jobs.OrderedLock.acquire(OrderedLock.java:110)
	at org.eclipse.core.internal.jobs.OrderedLock.acquire(OrderedLock.java:84)
	at org.eclipse.wst.sse.core.internal.text.JobSafeStructuredDocument.acquireLock(JobSafeStructuredDocument.java:65)
	at org.eclipse.wst.sse.core.internal.text.BasicStructuredDocument.getStructuredDocumentRegions(BasicStructuredDocument.java:1774)
	at org.eclipse.wst.sse.ui.internal.projection.AbstractStructuredFoldingStrategy.reconcile(AbstractStructuredFoldingStrategy.java:182)
	at org.eclipse.wst.sse.ui.internal.reconcile.DocumentRegionProcessor.process(DocumentRegionProcessor.java:312)
	at org.eclipse.wst.sse.ui.internal.reconcile.StructuredRegionProcessor.process(StructuredRegionProcessor.java:258)
	at org.eclipse.wst.sse.ui.internal.reconcile.DirtyRegionProcessor.run(DirtyRegionProcessor.java:667)
	at org.eclipse.core.internal.jobs.Worker.run(Worker.java:54)

   Locked ownable synchronizers:
	- None

"Java indexing" daemon prio=10 tid=0x00000000416dd800 nid=0x2f14 in Object.wait() [0x00007f16bcc24000]
   java.lang.Thread.State: WAITING (on object monitor)
	at java.lang.Object.wait(Native Method)
	- waiting on <0x00000000f15912c0> (a org.eclipse.jdt.internal.core.search.indexing.IndexManager)
	at java.lang.Object.wait(Object.java:485)
	at org.eclipse.jdt.internal.core.search.processing.JobManager.run(JobManager.java:382)
	- locked <0x00000000f15912c0> (a org.eclipse.jdt.internal.core.search.indexing.IndexManager)
	at java.lang.Thread.run(Thread.java:662)

   Locked ownable synchronizers:
	- None

"Worker-1" prio=10 tid=0x00007f16c00e7000 nid=0x2f13 in Object.wait() [0x00007f16bcd25000]
   java.lang.Thread.State: TIMED_WAITING (on object monitor)
	at java.lang.Object.wait(Native Method)
	- waiting on <0x00000000f10a3f30> (a org.eclipse.core.internal.jobs.WorkerPool)
	at org.eclipse.core.internal.jobs.WorkerPool.sleep(WorkerPool.java:188)
	- locked <0x00000000f10a3f30> (a org.eclipse.core.internal.jobs.WorkerPool)
	at org.eclipse.core.internal.jobs.WorkerPool.startJob(WorkerPool.java:220)
	at org.eclipse.core.internal.jobs.Worker.run(Worker.java:50)

   Locked ownable synchronizers:
	- None

"com.google.inject.internal.util.$Finalizer" daemon prio=10 tid=0x00007f16c0060800 nid=0x2f12 in Object.wait() [0x00007f16bce26000]
   java.lang.Thread.State: WAITING (on object monitor)
	at java.lang.Object.wait(Native Method)
	- waiting on <0x00000000f08900f8> (a java.lang.ref.ReferenceQueue$Lock)
	at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:118)
	- locked <0x00000000f08900f8> (a java.lang.ref.ReferenceQueue$Lock)
	at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:134)
	at com.google.inject.internal.util.$Finalizer.run(Finalizer.java:144)
	at java.lang.Thread.run(Thread.java:662)

   Locked ownable synchronizers:
	- None

"Worker-0" prio=10 tid=0x00007f16c8f11800 nid=0x2f10 in Object.wait() [0x00007f16be01d000]
   java.lang.Thread.State: TIMED_WAITING (on object monitor)
	at java.lang.Object.wait(Native Method)
	- waiting on <0x00000000f10a3f30> (a org.eclipse.core.internal.jobs.WorkerPool)
	at org.eclipse.core.internal.jobs.WorkerPool.sleep(WorkerPool.java:188)
	- locked <0x00000000f10a3f30> (a org.eclipse.core.internal.jobs.WorkerPool)
	at org.eclipse.core.internal.jobs.WorkerPool.startJob(WorkerPool.java:220)
	at org.eclipse.core.internal.jobs.Worker.run(Worker.java:50)

   Locked ownable synchronizers:
	- None

"[ThreadPool Manager] - Idle Thread" daemon prio=10 tid=0x0000000042492800 nid=0x2f0e in Object.wait() [0x00007f16cd9a7000]
   java.lang.Thread.State: WAITING (on object monitor)
	at java.lang.Object.wait(Native Method)
	- waiting on <0x00000000f11282c8> (a org.eclipse.equinox.internal.util.impl.tpt.threadpool.Executor)
	at java.lang.Object.wait(Object.java:485)
	at org.eclipse.equinox.internal.util.impl.tpt.threadpool.Executor.run(Executor.java:106)
	- locked <0x00000000f11282c8> (a org.eclipse.equinox.internal.util.impl.tpt.threadpool.Executor)

   Locked ownable synchronizers:
	- None

"[Timer] - Main Queue Handler" daemon prio=10 tid=0x0000000042461800 nid=0x2f0d in Object.wait() [0x00007f16cdaa8000]
   java.lang.Thread.State: TIMED_WAITING (on object monitor)
	at java.lang.Object.wait(Native Method)
	- waiting on <0x00000000f1128830> (a java.lang.Object)
	at org.eclipse.equinox.internal.util.impl.tpt.timer.TimerImpl.run(TimerImpl.java:141)
	- locked <0x00000000f1128830> (a java.lang.Object)
	at java.lang.Thread.run(Thread.java:662)

   Locked ownable synchronizers:
	- None

"Worker-JM" prio=10 tid=0x0000000041cb0000 nid=0x2f0c in Object.wait() [0x00007f16cdbaa000]
   java.lang.Thread.State: WAITING (on object monitor)
	at java.lang.Object.wait(Native Method)
	- waiting on <0x00000000f0b6b9d0> (a java.util.ArrayList)
	at org.eclipse.core.internal.jobs.InternalWorker.run(InternalWorker.java:58)
	- locked <0x00000000f0b6b9d0> (a java.util.ArrayList)

   Locked ownable synchronizers:
	- None

"Start Level Event Dispatcher" daemon prio=10 tid=0x00007f16c8242000 nid=0x2f0a in Object.wait() [0x00007f16ce341000]
   java.lang.Thread.State: WAITING (on object monitor)
	at java.lang.Object.wait(Native Method)
	- waiting on <0x00000000f065c328> (a org.eclipse.osgi.framework.eventmgr.EventManager$EventThread)
	at java.lang.Object.wait(Object.java:485)
	at org.eclipse.osgi.framework.eventmgr.EventManager$EventThread.getNextEvent(EventManager.java:400)
	- locked <0x00000000f065c328> (a org.eclipse.osgi.framework.eventmgr.EventManager$EventThread)
	at org.eclipse.osgi.framework.eventmgr.EventManager$EventThread.run(EventManager.java:336)

   Locked ownable synchronizers:
	- None

"Framework Event Dispatcher" daemon prio=10 tid=0x00007f16c8241800 nid=0x2f08 in Object.wait() [0x00007f16ce442000]
   java.lang.Thread.State: WAITING (on object monitor)
	at java.lang.Object.wait(Native Method)
	- waiting on <0x00000000f0663c10> (a org.eclipse.osgi.framework.eventmgr.EventManager$EventThread)
	at java.lang.Object.wait(Object.java:485)
	at org.eclipse.osgi.framework.eventmgr.EventManager$EventThread.getNextEvent(EventManager.java:400)
	- locked <0x00000000f0663c10> (a org.eclipse.osgi.framework.eventmgr.EventManager$EventThread)
	at org.eclipse.osgi.framework.eventmgr.EventManager$EventThread.run(EventManager.java:336)

   Locked ownable synchronizers:
	- None

"Framework Active Thread" prio=10 tid=0x00007f16c0009000 nid=0x2f06 in Object.wait() [0x00007f16ce644000]
   java.lang.Thread.State: TIMED_WAITING (on object monitor)
	at java.lang.Object.wait(Native Method)
	- waiting on <0x00000000f05c17f8> (a org.eclipse.osgi.framework.internal.core.Framework)
	at org.eclipse.osgi.framework.internal.core.Framework.run(Framework.java:1816)
	- locked <0x00000000f05c17f8> (a org.eclipse.osgi.framework.internal.core.Framework)
	at java.lang.Thread.run(Thread.java:662)

   Locked ownable synchronizers:
	- None

"OSGi Console" prio=10 tid=0x00007f16c001f000 nid=0x2f05 sleeping[0x00007f16ce745000]
   java.lang.Thread.State: TIMED_WAITING (sleeping)
	at java.lang.Thread.sleep(Native Method)
	at org.eclipse.osgi.framework.internal.core.FrameworkConsole.runConsole(FrameworkConsole.java:125)
	at org.eclipse.osgi.framework.internal.core.FrameworkConsole.run(FrameworkConsole.java:104)
	at java.lang.Thread.run(Thread.java:662)

   Locked ownable synchronizers:
	- None

"Low Memory Detector" daemon prio=10 tid=0x0000000040f9b800 nid=0x2f03 runnable [0x0000000000000000]
   java.lang.Thread.State: RUNNABLE

   Locked ownable synchronizers:
	- None

"CompilerThread1" daemon prio=10 tid=0x0000000040f99000 nid=0x2f01 waiting on condition [0x0000000000000000]
   java.lang.Thread.State: RUNNABLE

   Locked ownable synchronizers:
	- None

"CompilerThread0" daemon prio=10 tid=0x0000000040f95800 nid=0x2efe waiting on condition [0x0000000000000000]
   java.lang.Thread.State: RUNNABLE

   Locked ownable synchronizers:
	- None

"JDWP Command Reader" daemon prio=10 tid=0x0000000040f7f000 nid=0x2efb runnable [0x0000000000000000]
   java.lang.Thread.State: RUNNABLE

   Locked ownable synchronizers:
	- None

"JDWP Event Helper Thread" daemon prio=10 tid=0x0000000040f7c800 nid=0x2efa runnable [0x0000000000000000]
   java.lang.Thread.State: RUNNABLE

   Locked ownable synchronizers:
	- None

"JDWP Transport Listener: dt_socket" daemon prio=10 tid=0x0000000040f79000 nid=0x2ef6 runnable [0x0000000000000000]
   java.lang.Thread.State: RUNNABLE

   Locked ownable synchronizers:
	- None

"Signal Dispatcher" daemon prio=10 tid=0x0000000040f6d000 nid=0x2ef4 runnable [0x0000000000000000]
   java.lang.Thread.State: RUNNABLE

   Locked ownable synchronizers:
	- None

"Finalizer" daemon prio=10 tid=0x0000000040f49800 nid=0x2eec in Object.wait() [0x00007f16cf371000]
   java.lang.Thread.State: WAITING (on object monitor)
	at java.lang.Object.wait(Native Method)
	- waiting on <0x00000000f0360588> (a java.lang.ref.ReferenceQueue$Lock)
	at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:118)
	- locked <0x00000000f0360588> (a java.lang.ref.ReferenceQueue$Lock)
	at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:134)
	at java.lang.ref.Finalizer$FinalizerThread.run(Finalizer.java:159)

   Locked ownable synchronizers:
	- None

"Reference Handler" daemon prio=10 tid=0x0000000040f47800 nid=0x2eeb in Object.wait() [0x00007f16cf472000]
   java.lang.Thread.State: WAITING (on object monitor)
	at java.lang.Object.wait(Native Method)
	- waiting on <0x00000000f0360520> (a java.lang.ref.Reference$Lock)
	at java.lang.Object.wait(Object.java:485)
	at java.lang.ref.Reference$ReferenceHandler.run(Reference.java:116)
	- locked <0x00000000f0360520> (a java.lang.ref.Reference$Lock)

   Locked ownable synchronizers:
	- None

"main" prio=10 tid=0x0000000040ee9800 nid=0x2ee7 in Object.wait() [0x00007f16d43e8000]
   java.lang.Thread.State: TIMED_WAITING (on object monitor)
	at java.lang.Object.wait(Native Method)
	- waiting on <0x00000000f0c16078> (a java.lang.Object)
	at org.eclipse.core.internal.jobs.ThreadJob.waitForRun(ThreadJob.java:274)
	- locked <0x00000000f0c16078> (a java.lang.Object)
	at org.eclipse.core.internal.jobs.ThreadJob.joinRun(ThreadJob.java:199)
	at org.eclipse.core.internal.jobs.ImplicitJobs.begin(ImplicitJobs.java:92)
	at org.eclipse.core.internal.jobs.JobManager.beginRule(JobManager.java:286)
	at org.eclipse.core.internal.resources.WorkManager.checkIn(WorkManager.java:118)
	at org.eclipse.core.internal.resources.Workspace.prepareOperation(Workspace.java:2248)
	at org.eclipse.core.internal.resources.Workspace.run(Workspace.java:2305)
	at org.eclipse.ui.actions.WorkspaceModifyOperation.run(WorkspaceModifyOperation.java:118)
	- locked <0x00000000ff76cf78> (a org.eclipse.ui.actions.WorkspaceModifyDelegatingOperation)
	at org.eclipse.ui.internal.editors.text.WorkspaceOperationRunner.run(WorkspaceOperationRunner.java:75)
	at org.eclipse.ui.internal.editors.text.WorkspaceOperationRunner.run(WorkspaceOperationRunner.java:65)
	at org.eclipse.ui.editors.text.TextFileDocumentProvider.executeOperation(TextFileDocumentProvider.java:456)
	at org.eclipse.ui.editors.text.TextFileDocumentProvider.saveDocument(TextFileDocumentProvider.java:772)
	at org.eclipse.ui.texteditor.AbstractTextEditor.performSave(AbstractTextEditor.java:5048)
	at org.eclipse.ui.texteditor.AbstractTextEditor.doSave(AbstractTextEditor.java:4837)
	at org.eclipse.wst.sse.ui.StructuredTextEditor.doSave(StructuredTextEditor.java:1892)
	at org.eclipse.m2e.editor.pom.MavenPomEditor$StructuredSourceTextEditor.doSave(MavenPomEditor.java:583)
	at org.eclipse.m2e.editor.pom.MavenPomEditor$7.runInUIThread(MavenPomEditor.java:777)
	at org.eclipse.ui.progress.UIJob$1.run(UIJob.java:95)
	at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:35)
	at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:134)
	- locked <0x00000000ff76cfd8> (a org.eclipse.swt.widgets.RunnableLock)
	at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:3543)
	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3192)
	at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2696)
	at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2660)
	at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2494)
	at org.eclipse.ui.internal.Workbench$7.run(Workbench.java:674)
	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
	at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:667)
	at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
	at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:123)
	at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)
	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:110)
	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:79)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:344)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:597)
	at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:622)
	at org.eclipse.equinox.launcher.Main.basicRun(Main.java:577)
	at org.eclipse.equinox.launcher.Main.run(Main.java:1410)
	at org.eclipse.equinox.launcher.Main.main(Main.java:1386)

   Locked ownable synchronizers:
	- None

"VM Thread" prio=10 tid=0x0000000040f43000 nid=0x2eea runnable 

"GC task thread#0 (ParallelGC)" prio=10 tid=0x0000000040efc800 nid=0x2ee8 runnable 

"GC task thread#1 (ParallelGC)" prio=10 tid=0x0000000040efe000 nid=0x2ee9 runnable 

"VM Periodic Task Thread" prio=10 tid=0x00007f16c8001800 nid=0x2f04 waiting on condition 

JNI global references: 13507

Comment 2 Paul Tatavu

2011-03-30 14:20:21 EDT

Fixed:
http://git.eclipse.org/c/m2e/m2e-core.git/commit/?id=9d28da83a9bd08238e7229ace3f28fa845c82f47
https://github.com/sonatype/m2e-core-tests/commit/f9890f2750a147636cc66fc15820ec1c0beb53c4

Comment 3 Denis Roy

2021-04-19 13:25:51 EDT

Moved to https://github.com/eclipse-m2e/m2e-core/issues/