3 Replies Latest reply on Dec 9, 2011 6:41 PM by akazakov

    3.3m4 often hangs (cpu 100%)

    henk53

      Hi,

       

      Having used m3 since it came out I never experienced a hang. However, since I upgraded to m4 I frequently experience hangs when validation is taking place, typically right after I pull & update a major amount of changes from a repository.

       

      When the hang happens, the CPU is at 104%. One page specifically always causes the hang (also on the systems of my co-workers who run m4), I removed it from the project and then validation succeeds but after the mentioned pull & update it often hangs again without a clear indication of what it is hanging on.

       

      I wonder if anyone else is also experiencing such hangs.

        • 1. Re: 3.3m4 often hangs (cpu 100%)
          akazakov

          Could you attache the stack trace?

          You can get in in console via the following commands:

          1. jps

          You probably will see two java processes. One is your Eclipse and the other one is jps.

          2. jstack <eclipse_process_id>

          • 2. Re: 3.3m4 often hangs (cpu 100%)
            henk53

            Alexey Kazakov wrote:

             

            Could you attache the stack trace?

            You can get in in console via the following commands:

            1. jps

            You probably will see two java processes.

            In my case there are typically quite a few more than that, but I know which one I need

             

            To isolate the problem, I installed Eclipse 3.7.1 completely from scratch. Changed nothing and installed only Jboss tools 3.3m4, created a server for JBoss AS 6.10, created a dynamic web project with JBoss 6.x as target runtime. Added only the problematic file.

             

            Got the hang nearly immediately. This time I tried OS X where the CPU is at a near constant 108.9% now, but I also tested this on Linux (Ubuntu 10.10 and 11.10), Max OS X 10.6 and Windows 7.

             

            The full stack dump:

             

            Full thread dump Java HotSpot(TM) 64-Bit Server VM (16.3-b01-279 mixed mode):
            
            
            "Attach Listener" daemon prio=9 tid=157a75800 nid=0x15c085000 waiting on condition [00000000]
               java.lang.Thread.State: RUNNABLE
            
            
            "Worker-9" prio=5 tid=1157df000 nid=0x16091a000 in Object.wait() [160919000]
               java.lang.Thread.State: TIMED_WAITING (on object monitor)
                      at java.lang.Object.wait(Native Method)
                      - waiting on <11ed16e98> (a org.eclipse.core.internal.jobs.WorkerPool)
                      at org.eclipse.core.internal.jobs.WorkerPool.sleep(WorkerPool.java:188)
                      - locked <11ed16e98> (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)
            
            
            "JavaScript indexing" daemon prio=4 tid=15705a800 nid=0x160535000 in Object.wait() [160534000]
               java.lang.Thread.State: WAITING (on object monitor)
                      at java.lang.Object.wait(Native Method)
                      - waiting on <121a49570> (a org.eclipse.wst.jsdt.internal.core.search.indexing.IndexManager)
                      at java.lang.Object.wait(Object.java:485)
                      at org.eclipse.wst.jsdt.internal.core.search.processing.JobManager.run(JobManager.java:370)
                      - locked <121a49570> (a org.eclipse.wst.jsdt.internal.core.search.indexing.IndexManager)
                      at java.lang.Thread.run(Thread.java:637)
            
            
            "[ThreadPool Manager] - Idle Thread" daemon prio=5 tid=155b45800 nid=0x152a2d000 in Object.wait() [152a2c000]
               java.lang.Thread.State: WAITING (on object monitor)
                      at java.lang.Object.wait(Native Method)
                      - waiting on <1218aded0> (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 <1218aded0> (a org.eclipse.equinox.internal.util.impl.tpt.threadpool.Executor)
            
            
            "Worker-8" prio=5 tid=159861000 nid=0x15bead000 in Object.wait() [15beac000]
               java.lang.Thread.State: TIMED_WAITING (on object monitor)
                      at java.lang.Object.wait(Native Method)
                      - waiting on <11ed16e98> (a org.eclipse.core.internal.jobs.WorkerPool)
                      at org.eclipse.core.internal.jobs.WorkerPool.sleep(WorkerPool.java:188)
                      - locked <11ed16e98> (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)
            
            
            "Worker-7" prio=5 tid=14f8d2000 nid=0x159707000 in Object.wait() [159706000]
               java.lang.Thread.State: TIMED_WAITING (on object monitor)
                      at java.lang.Object.wait(Native Method)
                      - waiting on <11ed16e98> (a org.eclipse.core.internal.jobs.WorkerPool)
                      at org.eclipse.core.internal.jobs.WorkerPool.sleep(WorkerPool.java:188)
                      - locked <11ed16e98> (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)
            
            
            "Worker-6" prio=5 tid=14f8d1800 nid=0x159604000 in Object.wait() [159603000]
               java.lang.Thread.State: TIMED_WAITING (on object monitor)
                      at java.lang.Object.wait(Native Method)
                      - waiting on <11ed16e98> (a org.eclipse.core.internal.jobs.WorkerPool)
                      at org.eclipse.core.internal.jobs.WorkerPool.sleep(WorkerPool.java:188)
                      - locked <11ed16e98> (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)
            
            
            "Worker-5" prio=5 tid=15705f800 nid=0x159501000 in Object.wait() [159500000]
               java.lang.Thread.State: TIMED_WAITING (on object monitor)
                      at java.lang.Object.wait(Native Method)
                      - waiting on <11ed16e98> (a org.eclipse.core.internal.jobs.WorkerPool)
                      at org.eclipse.core.internal.jobs.WorkerPool.sleep(WorkerPool.java:188)
                      - locked <11ed16e98> (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)
            
            
            "Worker-4" prio=5 tid=14f8d0800 nid=0x159101000 in Object.wait() [159100000]
               java.lang.Thread.State: TIMED_WAITING (on object monitor)
                      at java.lang.Object.wait(Native Method)
                      - waiting on <11ed16e98> (a org.eclipse.core.internal.jobs.WorkerPool)
                      at org.eclipse.core.internal.jobs.WorkerPool.sleep(WorkerPool.java:188)
                      - locked <11ed16e98> (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)
            
            
            "Worker-3" prio=5 tid=14f8d0000 nid=0x15676f000 waiting on condition [15676e000]
               java.lang.Thread.State: WAITING (parking)
                      at sun.misc.Unsafe.park(Native Method)
                      - parking to wait for  <1215c2bb8> (a java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
                      at java.util.concurrent.locks.LockSupport.park(LockSupport.java:158)
                      at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:1925)
                      at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:399)
                      at org.eclipse.epp.usagedata.internal.gathering.services.UsageDataService.getQueuedEvent(UsageDataService.java:222)
                      at org.eclipse.epp.usagedata.internal.gathering.services.UsageDataService.access$0(UsageDataService.java:220)
                      at org.eclipse.epp.usagedata.internal.gathering.services.UsageDataService$1.run(UsageDataService.java:155)
                      at org.eclipse.core.internal.jobs.Worker.run(Worker.java:54)
            
            
            "Worker-2" prio=5 tid=115473800 nid=0x153eac000 in Object.wait() [153eab000]
               java.lang.Thread.State: TIMED_WAITING (on object monitor)
                      at java.lang.Object.wait(Native Method)
                      - waiting on <11ed16e98> (a org.eclipse.core.internal.jobs.WorkerPool)
                      at org.eclipse.core.internal.jobs.WorkerPool.sleep(WorkerPool.java:188)
                      - locked <11ed16e98> (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)
            
            
            "Java indexing" daemon prio=4 tid=115301000 nid=0x159204000 in Object.wait() [159203000]
               java.lang.Thread.State: WAITING (on object monitor)
                      at java.lang.Object.wait(Native Method)
                      - waiting on <12122f3d8> (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 <12122f3d8> (a org.eclipse.jdt.internal.core.search.indexing.IndexManager)
                      at java.lang.Thread.run(Thread.java:637)
            
            
            "Worker-1" prio=5 tid=116562800 nid=0x154345000 runnable [154343000]
               java.lang.Thread.State: RUNNABLE
                      at java.lang.Throwable.fillInStackTrace(Native Method)
                      - locked <11a414880> (a org.apache.xerces.xni.parser.XMLParseException)
                      at java.lang.Throwable.<init>(Throwable.java:196)
                      at java.lang.Exception.<init>(Exception.java:41)
                      at java.lang.RuntimeException.<init>(RuntimeException.java:43)
                      at org.apache.xerces.xni.XNIException.<init>(Unknown Source)
                      at org.apache.xerces.xni.parser.XMLParseException.<init>(Unknown Source)
                      at org.apache.xerces.impl.XMLErrorReporter.reportError(Unknown Source)
                      at org.apache.xerces.impl.XMLErrorReporter.reportError(Unknown Source)
                      at org.apache.xerces.impl.XMLErrorReporter.reportError(Unknown Source)
                      at org.apache.xerces.impl.XMLScanner.reportFatalError(Unknown Source)
                      at org.apache.xerces.impl.XMLDocumentScannerImpl$TrailingMiscDispatcher.dispatch(Unknown Source)
                      at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown Source)
                      at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
                      at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
                      at org.apache.xerces.parsers.XMLParser.parse(Unknown Source)
                      at org.jboss.tools.jsf.web.validation.XHTMLValidator$MySAXParser.parse(XHTMLValidator.java:692)
                      at org.jboss.tools.jsf.web.validation.XHTMLValidator$XHTMLElementHandler.isWellFormedXHTML(XHTMLValidator.java:554)
                      at org.jboss.tools.jsf.web.validation.XHTMLValidator.validate(XHTMLValidator.java:159)
                      at org.eclipse.wst.xml.core.internal.validation.core.AbstractNestedValidator.validate(AbstractNestedValidator.java:280)
                      at org.eclipse.wst.xml.core.internal.validation.core.AbstractNestedValidator.validate(AbstractNestedValidator.java:85)
                      at org.jboss.tools.jsf.web.validation.XHTMLValidator.validate(XHTMLValidator.java:138)
                      at org.eclipse.wst.validation.Validator$V2.validate(Validator.java:1159)
                      at org.eclipse.wst.validation.internal.ValManager.validate(ValManager.java:704)
                      at org.eclipse.wst.validation.internal.ValManager$1.visit(ValManager.java:665)
                      at org.eclipse.wst.validation.internal.ValManager.accept(ValManager.java:810)
                      at org.eclipse.wst.validation.internal.ValManager.validate(ValManager.java:669)
                      at org.eclipse.wst.validation.internal.ValBuilderJob$Visitor.visit(ValBuilderJob.java:327)
                      at org.eclipse.core.internal.events.ResourceDelta.accept(ResourceDelta.java:69)
                      at org.eclipse.core.internal.events.ResourceDelta.accept(ResourceDelta.java:80)
                      at org.eclipse.core.internal.events.ResourceDelta.accept(ResourceDelta.java:80)
                      at org.eclipse.core.internal.events.ResourceDelta.accept(ResourceDelta.java:49)
                      at org.eclipse.wst.validation.internal.ValBuilderJob.deltaBuild(ValBuilderJob.java:211)
                      at org.eclipse.wst.validation.internal.ValBuilderJob.run(ValBuilderJob.java:179)
                      at org.eclipse.wst.validation.internal.ValBuilderJob.runInWorkspace(ValBuilderJob.java:126)
                      at org.eclipse.core.internal.resources.InternalWorkspaceJob.run(InternalWorkspaceJob.java:38)
                      at org.eclipse.core.internal.jobs.Worker.run(Worker.java:54)
            
            
            "Provisioning Event Dispatcher" daemon prio=5 tid=116219000 nid=0x151e04000 in Object.wait() [151e03000]
               java.lang.Thread.State: WAITING (on object monitor)
                      at java.lang.Object.wait(Native Method)
                      - waiting on <12008e898> (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 <12008e898> (a org.eclipse.osgi.framework.eventmgr.EventManager$EventThread)
                      at org.eclipse.osgi.framework.eventmgr.EventManager$EventThread.run(EventManager.java:336)
            
            
            "Worker-0" prio=5 tid=15983e000 nid=0x151af1000 in Object.wait() [151af0000]
               java.lang.Thread.State: TIMED_WAITING (on object monitor)
                      at java.lang.Object.wait(Native Method)
                      - waiting on <11ed16e98> (a org.eclipse.core.internal.jobs.WorkerPool)
                      at org.eclipse.core.internal.jobs.WorkerPool.sleep(WorkerPool.java:188)
                      - locked <11ed16e98> (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)
            
            
            "Bundle File Closer" daemon prio=5 tid=11659f000 nid=0x15467a000 in Object.wait() [154679000]
               java.lang.Thread.State: WAITING (on object monitor)
                      at java.lang.Object.wait(Native Method)
                      - waiting on <11ef76320> (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 <11ef76320> (a org.eclipse.osgi.framework.eventmgr.EventManager$EventThread)
                      at org.eclipse.osgi.framework.eventmgr.EventManager$EventThread.run(EventManager.java:336)
            
            
            "Worker-JM" prio=5 tid=1163ca800 nid=0x154577000 in Object.wait() [154576000]
               java.lang.Thread.State: WAITING (on object monitor)
                      at java.lang.Object.wait(Native Method)
                      - waiting on <11e776ec8> (a java.util.ArrayList)
                      at org.eclipse.core.internal.jobs.InternalWorker.run(InternalWorker.java:58)
                      - locked <11e776ec8> (a java.util.ArrayList)
            
            
            "[Timer] - Main Queue Handler" daemon prio=5 tid=116560800 nid=0x154242000 in Object.wait() [154241000]
               java.lang.Thread.State: TIMED_WAITING (on object monitor)
                      at java.lang.Object.wait(Native Method)
                      - waiting on <11efe1c58> (a java.lang.Object)
                      at org.eclipse.equinox.internal.util.impl.tpt.timer.TimerImpl.run(TimerImpl.java:141)
                      - locked <11efe1c58> (a java.lang.Object)
                      at java.lang.Thread.run(Thread.java:637)
            
            
            "Framework Event Dispatcher" daemon prio=5 tid=115843000 nid=0x153da9000 in Object.wait() [153da8000]
               java.lang.Thread.State: WAITING (on object monitor)
                      at java.lang.Object.wait(Native Method)
                      - waiting on <11e3b3be0> (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 <11e3b3be0> (a org.eclipse.osgi.framework.eventmgr.EventManager$EventThread)
                      at org.eclipse.osgi.framework.eventmgr.EventManager$EventThread.run(EventManager.java:336)
            
            
            "Start Level Event Dispatcher" daemon prio=5 tid=115824800 nid=0x151f80000 in Object.wait() [151f7f000]
               java.lang.Thread.State: WAITING (on object monitor)
                      at java.lang.Object.wait(Native Method)
                      - waiting on <11e2267e0> (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 <11e2267e0> (a org.eclipse.osgi.framework.eventmgr.EventManager$EventThread)
                      at org.eclipse.osgi.framework.eventmgr.EventManager$EventThread.run(EventManager.java:336)
            
            
            "State Data Manager" daemon prio=5 tid=115822000 nid=0x151d01000 waiting on condition [151d00000]
               java.lang.Thread.State: TIMED_WAITING (sleeping)
                      at java.lang.Thread.sleep(Native Method)
                      at org.eclipse.osgi.internal.baseadaptor.StateManager.run(StateManager.java:297)
                      at java.lang.Thread.run(Thread.java:637)
            
            
            "Framework Active Thread" prio=5 tid=115154800 nid=0x1516bd000 in Object.wait() [1516bc000]
               java.lang.Thread.State: TIMED_WAITING (on object monitor)
                      at java.lang.Object.wait(Native Method)
                      - waiting on <11e2a0798> (a org.eclipse.osgi.framework.internal.core.Framework)
                      at org.eclipse.osgi.framework.internal.core.Framework.run(Framework.java:1817)
                      - locked <11e2a0798> (a org.eclipse.osgi.framework.internal.core.Framework)
                      at java.lang.Thread.run(Thread.java:637)
            
            
            "Poller SunPKCS11-Darwin" daemon prio=1 tid=1150c9800 nid=0x14f701000 waiting on condition [14f700000]
               java.lang.Thread.State: TIMED_WAITING (sleeping)
                      at java.lang.Thread.sleep(Native Method)
                      at sun.security.pkcs11.SunPKCS11$TokenPoller.run(SunPKCS11.java:692)
                      at java.lang.Thread.run(Thread.java:637)
            
            
            "Low Memory Detector" daemon prio=5 tid=11501d000 nid=0x14f301000 runnable [00000000]
               java.lang.Thread.State: RUNNABLE
            
            
            "CompilerThread1" daemon prio=9 tid=11501c800 nid=0x14f0b3000 waiting on condition [00000000]
               java.lang.Thread.State: RUNNABLE
            
            
            "CompilerThread0" daemon prio=9 tid=11501b800 nid=0x14efb0000 waiting on condition [00000000]
               java.lang.Thread.State: RUNNABLE
            
            
            "Signal Dispatcher" daemon prio=9 tid=11501b000 nid=0x14eead000 runnable [00000000]
               java.lang.Thread.State: RUNNABLE
            
            
            "Surrogate Locker Thread (CMS)" daemon prio=5 tid=11501a000 nid=0x14edaa000 waiting on condition [00000000]
               java.lang.Thread.State: RUNNABLE
            
            
            "Finalizer" daemon prio=8 tid=116148800 nid=0x14eca7000 in Object.wait() [14eca6000]
               java.lang.Thread.State: WAITING (on object monitor)
                      at java.lang.Object.wait(Native Method)
                      - waiting on <11e021760> (a java.lang.ref.ReferenceQueue$Lock)
                      at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:118)
                      - locked <11e021760> (a java.lang.ref.ReferenceQueue$Lock)
                      at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:134)
                      at java.lang.ref.Finalizer$FinalizerThread.run(Finalizer.java:159)
            
            
            "Reference Handler" daemon prio=10 tid=116147800 nid=0x14eba4000 in Object.wait() [14eba3000]
               java.lang.Thread.State: WAITING (on object monitor)
                      at java.lang.Object.wait(Native Method)
                      - waiting on <11e021778> (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 <11e021778> (a java.lang.ref.Reference$Lock)
            
            
            "main" prio=6 tid=116000000 nid=0x7fff7118bc00 runnable [7fff5fbfd000]
               java.lang.Thread.State: RUNNABLE
                      at org.eclipse.swt.internal.cocoa.OS.objc_msgSend_bool(Native Method)
                      at org.eclipse.swt.internal.cocoa.NSRunLoop.runMode(NSRunLoop.java:42)
                      at org.eclipse.swt.widgets.Display.sleep(Display.java:4573)
                      at org.eclipse.ui.application.WorkbenchAdvisor.eventLoopIdle(WorkbenchAdvisor.java:364)
                      at org.eclipse.ui.internal.ide.application.IDEWorkbenchAdvisor.eventLoopIdle(IDEWorkbenchAdvisor.java:917)
                      at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2697)
                      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)
            
            
            "VM Thread" prio=9 tid=116145000 nid=0x14eaa1000 runnable 
            
            
            "Gang worker#0 (Parallel GC Threads)" prio=9 tid=116001800 nid=0x119902000 runnable 
            
            
            "Gang worker#1 (Parallel GC Threads)" prio=9 tid=116002000 nid=0x119a05000 runnable 
            
            
            "Gang worker#2 (Parallel GC Threads)" prio=9 tid=116003000 nid=0x119b08000 runnable 
            
            
            "Gang worker#3 (Parallel GC Threads)" prio=9 tid=116003800 nid=0x119c0b000 runnable 
            
            
            "Gang worker#4 (Parallel GC Threads)" prio=9 tid=116004000 nid=0x119d0e000 runnable 
            
            
            "Gang worker#5 (Parallel GC Threads)" prio=9 tid=116004800 nid=0x119e11000 runnable 
            
            
            "Gang worker#6 (Parallel GC Threads)" prio=9 tid=116005800 nid=0x119f14000 runnable 
            
            
            "Gang worker#7 (Parallel GC Threads)" prio=9 tid=116006000 nid=0x11a017000 runnable 
            
            
            "Concurrent Mark-Sweep GC Thread" prio=9 tid=1160c0800 nid=0x14e7a9000 runnable 
            "Gang worker#0 (Parallel CMS Threads)" prio=9 tid=1160bf000 nid=0x14dda3000 runnable 
            
            
            "Gang worker#1 (Parallel CMS Threads)" prio=9 tid=1160bf800 nid=0x14dea6000 runnable 
            
            
            "VM Periodic Task Thread" prio=10 tid=11501e800 nid=0x14f404000 waiting on condition 
            
            
            "Exception Catcher Thread" prio=10 tid=116001000 nid=0x114f01000 runnable 
            JNI global references: 1900
            
            

             

             

            Since a single stack dump is just a snapshot, a second one after a restart of Eclipse:

             

             

            Full thread dump Java HotSpot(TM) 64-Bit Server VM (16.3-b01-279 mixed mode):
            
            
            "Attach Listener" daemon prio=9 tid=14fcdd800 nid=0x156301000 waiting on condition [00000000]
               java.lang.Thread.State: RUNNABLE
            
            
            "[ThreadPool Manager] - Idle Thread" daemon prio=5 tid=115f87800 nid=0x15d402000 in Object.wait() [15d401000]
               java.lang.Thread.State: WAITING (on object monitor)
                      at java.lang.Object.wait(Native Method)
                      - waiting on <121a175c8> (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 <121a175c8> (a org.eclipse.equinox.internal.util.impl.tpt.threadpool.Executor)
            
            
            "Java2D Disposer" daemon prio=10 tid=14ecde800 nid=0x15bb7d000 in Object.wait() [15bb7c000]
               java.lang.Thread.State: WAITING (on object monitor)
                      at java.lang.Object.wait(Native Method)
                      - waiting on <126271490> (a java.lang.ref.ReferenceQueue$Lock)
                      at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:118)
                      - locked <126271490> (a java.lang.ref.ReferenceQueue$Lock)
                      at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:134)
                      at sun.java2d.Disposer.run(Disposer.java:125)
                      at java.lang.Thread.run(Thread.java:637)
            
            
            "AWT-Shutdown" prio=6 tid=11512d000 nid=0x15b359000 in Object.wait() [15b358000]
               java.lang.Thread.State: WAITING (on object monitor)
                      at java.lang.Object.wait(Native Method)
                      - waiting on <126278448> (a java.lang.Object)
                      at java.lang.Object.wait(Object.java:485)
                      at sun.awt.AWTAutoShutdown.run(AWTAutoShutdown.java:265)
                      - locked <126278448> (a java.lang.Object)
                      at java.lang.Thread.run(Thread.java:637)
            
            
            "org.eclipse.wst.sse.ui.internal.reconcile.StructuredRegionProcessor" daemon prio=1 tid=14eedc800 nid=0x15a101000 in Object.wait() [15a100000]
               java.lang.Thread.State: TIMED_WAITING (on object monitor)
                      at java.lang.Object.wait(Native Method)
                      - waiting on <1250a8b20> (a java.util.Collections$SynchronizedRandomAccessList)
                      at org.eclipse.wst.sse.ui.internal.reconcile.DirtyRegionProcessor$BackgroundThread.run(DirtyRegionProcessor.java:672)
                      - locked <1250a8b20> (a java.util.Collections$SynchronizedRandomAccessList)
            
            
            "Dali Event Handler" prio=6 tid=1154d7000 nid=0x156764000 in Object.wait() [156763000]
               java.lang.Thread.State: WAITING (on object monitor)
                      at java.lang.Object.wait(Native Method)
                      - waiting on <12086a220> (a org.eclipse.jpt.common.utility.internal.SynchronizedQueue)
                      at java.lang.Object.wait(Object.java:485)
                      at org.eclipse.jpt.common.utility.internal.SynchronizedQueue.waitUntilEmptyIs_(SynchronizedQueue.java:138)
                      at org.eclipse.jpt.common.utility.internal.SynchronizedQueue.waitUntilEmptyIs(SynchronizedQueue.java:129)
                      - locked <12086a220> (a org.eclipse.jpt.common.utility.internal.SynchronizedQueue)
                      at org.eclipse.jpt.common.utility.internal.SynchronizedQueue.waitUntilNotEmpty(SynchronizedQueue.java:153)
                      at org.eclipse.jpt.common.utility.internal.AsynchronousCommandExecutor$Consumer.waitForProducer(AsynchronousCommandExecutor.java:156)
                      at org.eclipse.jpt.common.utility.internal.ConsumerThreadCoordinator$RunnableConsumer.run(ConsumerThreadCoordinator.java:199)
                      at java.lang.Thread.run(Thread.java:637)
            
            
            "Worker-10" prio=5 tid=115169000 nid=0x15b054000 runnable [15b052000]
               java.lang.Thread.State: RUNNABLE
                      at java.lang.Throwable.fillInStackTrace(Native Method)
                      - locked <11acb4ca0> (a org.xml.sax.SAXParseException)
                      at java.lang.Throwable.<init>(Throwable.java:196)
                      at java.lang.Exception.<init>(Exception.java:41)
                      at org.xml.sax.SAXException.<init>(SAXException.java:88)
                      at org.xml.sax.SAXParseException.<init>(SAXParseException.java:151)
                      at org.apache.xerces.util.ErrorHandlerWrapper.createSAXParseException(Unknown Source)
                      at org.apache.xerces.util.ErrorHandlerWrapper.fatalError(Unknown Source)
                      at org.apache.xerces.impl.XMLErrorReporter.reportError(Unknown Source)
                      at org.apache.xerces.impl.XMLErrorReporter.reportError(Unknown Source)
                      at org.apache.xerces.impl.XMLErrorReporter.reportError(Unknown Source)
                      at org.apache.xerces.impl.XMLScanner.reportFatalError(Unknown Source)
                      at org.apache.xerces.impl.XMLDocumentScannerImpl$TrailingMiscDispatcher.dispatch(Unknown Source)
                      at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown Source)
                      at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
                      at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
                      at org.apache.xerces.parsers.XMLParser.parse(Unknown Source)
                      at org.jboss.tools.jsf.web.validation.XHTMLValidator$MySAXParser.parse(XHTMLValidator.java:692)
                      at org.jboss.tools.jsf.web.validation.XHTMLValidator$XHTMLElementHandler.isWellFormedXHTML(XHTMLValidator.java:554)
                      at org.jboss.tools.jsf.web.validation.XHTMLValidator.validate(XHTMLValidator.java:159)
                      at org.eclipse.wst.xml.core.internal.validation.core.AbstractNestedValidator.validate(AbstractNestedValidator.java:280)
                      at org.eclipse.wst.xml.core.internal.validation.core.AbstractNestedValidator.validate(AbstractNestedValidator.java:85)
                      at org.jboss.tools.jsf.web.validation.XHTMLValidator.validate(XHTMLValidator.java:138)
                      at org.eclipse.wst.validation.Validator$V2.validate(Validator.java:1159)
                      at org.eclipse.wst.validation.internal.ValManager.validate(ValManager.java:704)
                      at org.eclipse.wst.validation.internal.ValManager$1.visit(ValManager.java:665)
                      at org.eclipse.wst.validation.internal.ValManager.accept(ValManager.java:810)
                      at org.eclipse.wst.validation.internal.ValManager.validate(ValManager.java:669)
                      at org.eclipse.wst.validation.internal.ValBuilderJob$Visitor.visit(ValBuilderJob.java:327)
                      at org.eclipse.core.internal.events.ResourceDelta.accept(ResourceDelta.java:69)
                      at org.eclipse.core.internal.events.ResourceDelta.accept(ResourceDelta.java:80)
                      at org.eclipse.core.internal.events.ResourceDelta.accept(ResourceDelta.java:80)
                      at org.eclipse.core.internal.events.ResourceDelta.accept(ResourceDelta.java:49)
                      at org.eclipse.wst.validation.internal.ValBuilderJob.deltaBuild(ValBuilderJob.java:211)
                      at org.eclipse.wst.validation.internal.ValBuilderJob.run(ValBuilderJob.java:179)
                      at org.eclipse.wst.validation.internal.ValBuilderJob.runInWorkspace(ValBuilderJob.java:126)
                      at org.eclipse.core.internal.resources.InternalWorkspaceJob.run(InternalWorkspaceJob.java:38)
                      at org.eclipse.core.internal.jobs.Worker.run(Worker.java:54)
            
            
            "Worker-6" prio=5 tid=14fe1d000 nid=0x15ac48000 waiting on condition [15ac47000]
               java.lang.Thread.State: WAITING (parking)
                      at sun.misc.Unsafe.park(Native Method)
                      - parking to wait for  <1205b3560> (a java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
                      at java.util.concurrent.locks.LockSupport.park(LockSupport.java:158)
                      at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:1925)
                      at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:399)
                      at org.eclipse.epp.usagedata.internal.gathering.services.UsageDataService.getQueuedEvent(UsageDataService.java:222)
                      at org.eclipse.epp.usagedata.internal.gathering.services.UsageDataService.access$0(UsageDataService.java:220)
                      at org.eclipse.epp.usagedata.internal.gathering.services.UsageDataService$1.run(UsageDataService.java:155)
                      at org.eclipse.core.internal.jobs.Worker.run(Worker.java:54)
            
            
            "Worker-3" prio=5 tid=11516a000 nid=0x15a205000 in Object.wait() [15a204000]
               java.lang.Thread.State: TIMED_WAITING (on object monitor)
                      at java.lang.Object.wait(Native Method)
                      - waiting on <11e10ffc0> (a org.eclipse.core.internal.jobs.WorkerPool)
                      at org.eclipse.core.internal.jobs.WorkerPool.sleep(WorkerPool.java:188)
                      - locked <11e10ffc0> (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)
            
            
            "Worker-1" prio=5 tid=14eaac800 nid=0x154e2c000 in Object.wait() [154e2b000]
               java.lang.Thread.State: TIMED_WAITING (on object monitor)
                      at java.lang.Object.wait(Native Method)
                      - waiting on <11e10ffc0> (a org.eclipse.core.internal.jobs.WorkerPool)
                      at org.eclipse.core.internal.jobs.WorkerPool.sleep(WorkerPool.java:188)
                      - locked <11e10ffc0> (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)
            
            
            "JavaScript indexing" daemon prio=4 tid=14e930800 nid=0x157eee000 in Object.wait() [157eed000]
               java.lang.Thread.State: WAITING (on object monitor)
                      at java.lang.Object.wait(Native Method)
                      - waiting on <1205b1230> (a org.eclipse.wst.jsdt.internal.core.search.indexing.IndexManager)
                      at java.lang.Object.wait(Object.java:485)
                      at org.eclipse.wst.jsdt.internal.core.search.processing.JobManager.run(JobManager.java:370)
                      - locked <1205b1230> (a org.eclipse.wst.jsdt.internal.core.search.indexing.IndexManager)
                      at java.lang.Thread.run(Thread.java:637)
            
            
            "Java indexing" daemon prio=4 tid=14f998800 nid=0x157deb000 in Object.wait() [157dea000]
               java.lang.Thread.State: WAITING (on object monitor)
                      at java.lang.Object.wait(Native Method)
                      - waiting on <11fdaef88> (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 <11fdaef88> (a org.eclipse.jdt.internal.core.search.indexing.IndexManager)
                      at java.lang.Thread.run(Thread.java:637)
            
            
            "Bundle File Closer" daemon prio=5 tid=14fb0a000 nid=0x1527cc000 in Object.wait() [1527cb000]
               java.lang.Thread.State: WAITING (on object monitor)
                      at java.lang.Object.wait(Native Method)
                      - waiting on <11e0925f0> (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 <11e0925f0> (a org.eclipse.osgi.framework.eventmgr.EventManager$EventThread)
                      at org.eclipse.osgi.framework.eventmgr.EventManager$EventThread.run(EventManager.java:336)
            
            
            "Worker-JM" prio=5 tid=14f9d2000 nid=0x15642f000 in Object.wait() [15642e000]
               java.lang.Thread.State: WAITING (on object monitor)
                      at java.lang.Object.wait(Native Method)
                      - waiting on <11e0bc508> (a java.util.ArrayList)
                      at org.eclipse.core.internal.jobs.InternalWorker.run(InternalWorker.java:58)
                      - locked <11e0bc508> (a java.util.ArrayList)
            
            
            "[Timer] - Main Queue Handler" daemon prio=5 tid=115113800 nid=0x156661000 in Object.wait() [156660000]
               java.lang.Thread.State: TIMED_WAITING (on object monitor)
                      at java.lang.Object.wait(Native Method)
                      - waiting on <11de48d70> (a java.lang.Object)
                      at org.eclipse.equinox.internal.util.impl.tpt.timer.TimerImpl.run(TimerImpl.java:141)
                      - locked <11de48d70> (a java.lang.Object)
                      at java.lang.Thread.run(Thread.java:637)
            
            
            "Framework Event Dispatcher" daemon prio=5 tid=14e9bb800 nid=0x154a96000 in Object.wait() [154a95000]
               java.lang.Thread.State: WAITING (on object monitor)
                      at java.lang.Object.wait(Native Method)
                      - waiting on <11dae7980> (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 <11dae7980> (a org.eclipse.osgi.framework.eventmgr.EventManager$EventThread)
                      at org.eclipse.osgi.framework.eventmgr.EventManager$EventThread.run(EventManager.java:336)
            
            
            "Start Level Event Dispatcher" daemon prio=5 tid=115c2f000 nid=0x154c26000 in Object.wait() [154c25000]
               java.lang.Thread.State: WAITING (on object monitor)
                      at java.lang.Object.wait(Native Method)
                      - waiting on <11dd20f60> (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 <11dd20f60> (a org.eclipse.osgi.framework.eventmgr.EventManager$EventThread)
                      at org.eclipse.osgi.framework.eventmgr.EventManager$EventThread.run(EventManager.java:336)
            
            
            "State Data Manager" daemon prio=5 tid=152812000 nid=0x151f1b000 waiting on condition [151f1a000]
               java.lang.Thread.State: TIMED_WAITING (sleeping)
                      at java.lang.Thread.sleep(Native Method)
                      at org.eclipse.osgi.internal.baseadaptor.StateManager.run(StateManager.java:297)
                      at java.lang.Thread.run(Thread.java:637)
            
            
            "Framework Active Thread" prio=5 tid=1159e4000 nid=0x151c16000 in Object.wait() [151c15000]
               java.lang.Thread.State: TIMED_WAITING (on object monitor)
                      at java.lang.Object.wait(Native Method)
                      - waiting on <11d96cd58> (a org.eclipse.osgi.framework.internal.core.Framework)
                      at org.eclipse.osgi.framework.internal.core.Framework.run(Framework.java:1817)
                      - locked <11d96cd58> (a org.eclipse.osgi.framework.internal.core.Framework)
                      at java.lang.Thread.run(Thread.java:637)
            
            
            "Poller SunPKCS11-Darwin" daemon prio=1 tid=14f89b800 nid=0x151101000 waiting on condition [151100000]
               java.lang.Thread.State: TIMED_WAITING (sleeping)
                      at java.lang.Thread.sleep(Native Method)
                      at sun.security.pkcs11.SunPKCS11$TokenPoller.run(SunPKCS11.java:692)
                      at java.lang.Thread.run(Thread.java:637)
            
            
            "Low Memory Detector" daemon prio=5 tid=14f800000 nid=0x14f204000 runnable [00000000]
               java.lang.Thread.State: RUNNABLE
            
            
            "CompilerThread1" daemon prio=9 tid=14e817800 nid=0x14f101000 waiting on condition [00000000]
               java.lang.Thread.State: RUNNABLE
            
            
            "CompilerThread0" daemon prio=9 tid=14e816800 nid=0x14e7b0000 waiting on condition [00000000]
               java.lang.Thread.State: RUNNABLE
            
            
            "Signal Dispatcher" daemon prio=9 tid=14e816000 nid=0x14e6ad000 runnable [00000000]
               java.lang.Thread.State: RUNNABLE
            
            
            "Surrogate Locker Thread (CMS)" daemon prio=5 tid=14e815000 nid=0x14e5aa000 waiting on condition [00000000]
               java.lang.Thread.State: RUNNABLE
            
            
            "Finalizer" daemon prio=8 tid=115949000 nid=0x14e4a7000 in Object.wait() [14e4a6000]
               java.lang.Thread.State: WAITING (on object monitor)
                      at java.lang.Object.wait(Native Method)
                      - waiting on <11d820018> (a java.lang.ref.ReferenceQueue$Lock)
                      at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:118)
                      - locked <11d820018> (a java.lang.ref.ReferenceQueue$Lock)
                      at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:134)
                      at java.lang.ref.Finalizer$FinalizerThread.run(Finalizer.java:159)
            
            
            "Reference Handler" daemon prio=10 tid=115948000 nid=0x14e3a4000 in Object.wait() [14e3a3000]
               java.lang.Thread.State: WAITING (on object monitor)
                      at java.lang.Object.wait(Native Method)
                      - waiting on <11d821768> (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 <11d821768> (a java.lang.ref.Reference$Lock)
            
            
            "main" prio=6 tid=115800800 nid=0x7fff7118bc00 runnable [7fff5fbfd000]
               java.lang.Thread.State: RUNNABLE
                      at org.eclipse.swt.internal.cocoa.OS.objc_msgSend_bool(Native Method)
                      at org.eclipse.swt.internal.cocoa.NSRunLoop.runMode(NSRunLoop.java:42)
                      at org.eclipse.swt.widgets.Display.sleep(Display.java:4573)
                      at org.eclipse.ui.application.WorkbenchAdvisor.eventLoopIdle(WorkbenchAdvisor.java:364)
                      at org.eclipse.ui.internal.ide.application.IDEWorkbenchAdvisor.eventLoopIdle(IDEWorkbenchAdvisor.java:917)
                      at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2697)
                      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)
            
            
            "VM Thread" prio=9 tid=115945800 nid=0x14e2a1000 runnable 
            
            
            "Gang worker#0 (Parallel GC Threads)" prio=9 tid=115802000 nid=0x114f1b000 runnable 
            
            
            "Gang worker#1 (Parallel GC Threads)" prio=9 tid=115802800 nid=0x119202000 runnable 
            
            
            "Gang worker#2 (Parallel GC Threads)" prio=9 tid=115803000 nid=0x119305000 runnable 
            
            
            "Gang worker#3 (Parallel GC Threads)" prio=9 tid=115804000 nid=0x119408000 runnable 
            
            
            "Gang worker#4 (Parallel GC Threads)" prio=9 tid=115804800 nid=0x11950b000 runnable 
            
            
            "Gang worker#5 (Parallel GC Threads)" prio=9 tid=115805000 nid=0x11960e000 runnable 
            
            
            "Gang worker#6 (Parallel GC Threads)" prio=9 tid=115805800 nid=0x119711000 runnable 
            
            
            "Gang worker#7 (Parallel GC Threads)" prio=9 tid=115806800 nid=0x119814000 runnable 
            
            
            "Concurrent Mark-Sweep GC Thread" prio=9 tid=1158c0800 nid=0x14dfa9000 runnable 
            "Gang worker#0 (Parallel CMS Threads)" prio=9 tid=1158bf800 nid=0x14d5a3000 runnable 
            
            
            "Gang worker#1 (Parallel CMS Threads)" prio=9 tid=1158c0000 nid=0x14d6a6000 runnable 
            
            
            "VM Periodic Task Thread" prio=10 tid=14f802000 nid=0x14f307000 waiting on condition 
            
            
            "Exception Catcher Thread" prio=10 tid=115801800 nid=0x113f01000 runnable 
            JNI global references: 2209
            
            

             

             

             

            The (nonsensical) offending file (foo_bar_kaz.html):

             

            <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
            
            <html>
            <head>
                      <title>some title</title>
            </head>
            
            <body>
            <h2>some heading.</h2>
            
            SOME TEST!!!!<br>
            MORE TEXT
            
            <script type="text/javascript" language="javascript" >
            // A comment
            
            function GetCookie (name) {
              var arg = name + "=";
              var alen = arg.length;
              var clen = document.cookie.length;
              var i = 0;
             while (i < clen) {
                var j = i + alen;
                if (document.cookie.substring(i, j) == arg)
                  return getCookieVal (j);
                i = document.cookie.indexOf(" ", i) + 1;
                if (i == 0) break;
                      } 
            return null;
            }
            
            function getCookieVal (offset) {
              var endstr = document.cookie.indexOf (";", offset);
             if (endstr == -1)
                endstr = document.cookie.length;
              return document.cookie.substring(offset, endstr);
            }
            
            //comment
            var xyz = GetCookie('xyz'); // Comments
            
            var datum = new Date();
            
            var d1 = datum.getTime().toString();
            // comment "" bla
            var d2 = "100";  
            // comment
            var d3 = "dba";  
            // comment
            var abc = 999; 
            // comment
            
            function urlEncode (string) {
                                string = string.replace(/ /g, '+');
                                       return escape(string);
                      }
            
            // comment
            // comment
            if(cookie != "" && cookie != null ){
                      document.write("<img src=\"http://example.com./xxx?bla=" + xyz + "&bar="+abc+"&d1=" +urlEncode(d1)+ "&d2=" +urlEncode(d2) +"&d3=" +urlEncode(d3)+"\" alt=\"\" width=\"1\" height=\"1\" border=\"0\" >"); 
            }
            else {
            var cookie = "kaz" 
            }
            </script>
            
            
            </body>
            </html>
            
            • 3. Re: 3.3m4 often hangs (cpu 100%)
              akazakov

              Thank you for the stack trace and file!

              I can reproduce the bug.

              I've created an issue - https://issues.jboss.org/browse/JBIDE-10438

              You can disable this validation until we fix it: Preferences->Validation->XHTML Syntax Validator