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Bug 479796

Summary: Adding new java class causes hang
Product: [Eclipse Project] JDT Reporter: Ray Kiddy <ray>
Component: CoreAssignee: JDT-Core-Inbox <jdt-core-inbox>
Status: CLOSED WONTFIX QA Contact:
Severity: normal    
Priority: P3 CC: stephan.herrmann
Version: 4.5   
Target Milestone: ---   
Hardware: PC   
OS: Linux   
Whiteboard: stalebug

Description Ray Kiddy CLA 2015-10-14 17:04:17 EDT 
This version of eclipse seems to hang a lot.... :-(

I added a new Java Class. I had copied some code into the pasteboard. I think I did a "paste" of the code into the body of the new class.

The UI went dark and several minutes later, it had not come back.

I am using WOLips, a plugin for WebObjects components. Obviously the initial error has something to do with the plugin, but I cannot see that the hang is the result of plugin code.


Here is the console output when the hang started:

WooModel.updateEncoding: Setting encoding of L/gigspanmain/Components/Main.wo/Main.woo from UTF-8 to UTF-8
java.lang.reflect.InvocationTargetException: Failed to reformat.
	at org.objectstyle.wolips.wodclipse.core.refactoring.FormatRefactoring.run(FormatRefactoring.java:65)
	at org.objectstyle.wolips.wodclipse.core.refactoring.TemplateRefactoring.processHtmlAndWod(TemplateRefactoring.java:47)
	at org.objectstyle.wolips.wodclipse.core.refactoring.FormatRefactoring.run(FormatRefactoring.java:70)
	at org.objectstyle.wolips.componenteditor.actions.FormatAction.run(FormatAction.java:18)
	at org.eclipse.ui.actions.ActionDelegate.runWithEvent(ActionDelegate.java:75)
	at org.eclipse.ui.internal.handlers.ActionDelegateHandlerProxy.execute(ActionDelegateHandlerProxy.java:291)
	at org.eclipse.ui.internal.handlers.E4HandlerProxy.execute(E4HandlerProxy.java:90)
	at sun.reflect.GeneratedMethodAccessor59.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:497)
	at org.eclipse.e4.core.internal.di.MethodRequestor.execute(MethodRequestor.java:56)
	at org.eclipse.e4.core.internal.di.InjectorImpl.invokeUsingClass(InjectorImpl.java:252)
	at org.eclipse.e4.core.internal.di.InjectorImpl.invoke(InjectorImpl.java:234)
	at org.eclipse.e4.core.contexts.ContextInjectionFactory.invoke(ContextInjectionFactory.java:132)
	at org.eclipse.e4.core.commands.internal.HandlerServiceHandler.execute(HandlerServiceHandler.java:152)
	at org.eclipse.core.commands.Command.executeWithChecks(Command.java:493)
	at org.eclipse.core.commands.ParameterizedCommand.executeWithChecks(ParameterizedCommand.java:486)
	at org.eclipse.e4.core.commands.internal.HandlerServiceImpl.executeHandler(HandlerServiceImpl.java:210)
	at org.eclipse.e4.ui.bindings.keys.KeyBindingDispatcher.executeCommand(KeyBindingDispatcher.java:286)
	at org.eclipse.e4.ui.bindings.keys.KeyBindingDispatcher.press(KeyBindingDispatcher.java:507)
	at org.eclipse.e4.ui.bindings.keys.KeyBindingDispatcher.processKeyEvent(KeyBindingDispatcher.java:558)
	at org.eclipse.e4.ui.bindings.keys.KeyBindingDispatcher.filterKeySequenceBindings(KeyBindingDispatcher.java:378)
	at org.eclipse.e4.ui.bindings.keys.KeyBindingDispatcher.access$0(KeyBindingDispatcher.java:324)
	at org.eclipse.e4.ui.bindings.keys.KeyBindingDispatcher$KeyDownFilter.handleEvent(KeyBindingDispatcher.java:86)
	at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
	at org.eclipse.swt.widgets.Display.filterEvent(Display.java:1550)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1326)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1351)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1336)
	at org.eclipse.swt.widgets.Widget.sendKeyEvent(Widget.java:1363)
	at org.eclipse.swt.widgets.Widget.gtk_key_press_event(Widget.java:763)
	at org.eclipse.swt.widgets.Control.gtk_key_press_event(Control.java:3317)
	at org.eclipse.swt.widgets.Composite.gtk_key_press_event(Composite.java:785)
	at org.eclipse.swt.widgets.Widget.windowProc(Widget.java:1965)
	at org.eclipse.swt.widgets.Control.windowProc(Control.java:5590)
	at org.eclipse.swt.widgets.Display.windowProc(Display.java:4717)
	at org.eclipse.swt.internal.gtk.OS._gtk_main_do_event(Native Method)
	at org.eclipse.swt.internal.gtk.OS.gtk_main_do_event(OS.java:9272)
	at org.eclipse.swt.widgets.Display.eventProc(Display.java:1225)
	at org.eclipse.swt.internal.gtk.OS._g_main_context_iteration(Native Method)
	at org.eclipse.swt.internal.gtk.OS.g_main_context_iteration(OS.java:2422)
	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3428)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$4.run(PartRenderingEngine.java:1127)
	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:337)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1018)
	at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:156)
	at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:654)
	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:337)
	at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:598)
	at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:150)
	at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:139)
	at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)
	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:134)
	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:380)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:235)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:497)
	at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:669)
	at org.eclipse.equinox.launcher.Main.basicRun(Main.java:608)
	at org.eclipse.equinox.launcher.Main.run(Main.java:1515)
	at org.eclipse.equinox.launcher.Main.main(Main.java:1488)
Caused by: java.lang.NullPointerException
	at org.objectstyle.wolips.wodclipse.core.refactoring.FormatRefactoring.run(FormatRefactoring.java:35)
	... 63 more


After waiting several minutes (more than 5), I got a thread dump:

Full thread dump Java HotSpot(TM) 64-Bit Server VM (25.60-b23 mixed mode):

"Worker-215" #2065 prio=5 os_prio=0 tid=0x00007f5958199800 nid=0x6efc in Object.wait() [0x00007f58f48cd000]
   java.lang.Thread.State: TIMED_WAITING (on object monitor)
	at java.lang.Object.wait(Native Method)
	at org.eclipse.core.internal.jobs.WorkerPool.sleep(WorkerPool.java:188)
	- locked <0x00000000c0534950> (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:52)

"org.eclipse.jdt.internal.ui.text.JavaReconciler" #2051 daemon prio=1 os_prio=0 tid=0x00007f58ee262000 nid=0x6ea4 in Object.wait() [0x00007f5964751000]
   java.lang.Thread.State: TIMED_WAITING (on object monitor)
	at java.lang.Object.wait(Native Method)
	at org.eclipse.jface.text.reconciler.AbstractReconciler$BackgroundThread.run(AbstractReconciler.java:179)
	- locked <0x00000000c6714770> (a org.eclipse.jface.text.reconciler.DirtyRegionQueue)

"org.eclipse.jdt.internal.ui.text.JavaReconciler" #2037 daemon prio=1 os_prio=0 tid=0x00007f58ee16d000 nid=0x6e93 in Object.wait() [0x00007f5965092000]
   java.lang.Thread.State: TIMED_WAITING (on object monitor)
	at java.lang.Object.wait(Native Method)
	at org.eclipse.jface.text.reconciler.AbstractReconciler$BackgroundThread.run(AbstractReconciler.java:179)
	- locked <0x00000000c63b4bb8> (a org.eclipse.jface.text.reconciler.DirtyRegionQueue)

"Worker-206" #1932 prio=5 os_prio=0 tid=0x00007f595829e800 nid=0x6d82 in Object.wait() [0x00007f58f6883000]
   java.lang.Thread.State: TIMED_WAITING (on object monitor)
	at java.lang.Object.wait(Native Method)
	at org.eclipse.core.internal.jobs.WorkerPool.sleep(WorkerPool.java:188)
	- locked <0x00000000c0534950> (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:52)

"Recommenders-Timeout-Manager" #260 prio=5 os_prio=0 tid=0x00007f59f34d2000 nid=0x1f78 waiting on condition [0x00007f58f22c5000]
   java.lang.Thread.State: WAITING (parking)
	at sun.misc.Unsafe.park(Native Method)
	- parking to wait for  <0x00000000c2dda0c0> (a java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
	at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
	at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
	at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1081)
	at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:809)
	at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1067)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1127)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)

"Timer-0" #251 daemon prio=6 os_prio=0 tid=0x00007f59f345b800 nid=0x1f6e in Object.wait() [0x00007f58f24c7000]
   java.lang.Thread.State: TIMED_WAITING (on object monitor)
	at java.lang.Object.wait(Native Method)
	at java.util.TimerThread.mainLoop(Timer.java:552)
	- locked <0x00000000c2d798a0> (a java.util.TaskQueue)
	at java.util.TimerThread.run(Timer.java:505)

"com.google.inject.internal.util.$Finalizer" #247 daemon prio=6 os_prio=0 tid=0x00007f59f2632000 nid=0x1f6a in Object.wait() [0x00007f58f44ca000]
   java.lang.Thread.State: WAITING (on object monitor)
	at java.lang.Object.wait(Native Method)
	at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:143)
	- locked <0x00000000c2d90be8> (a java.lang.ref.ReferenceQueue$Lock)
	at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:164)
	at com.google.inject.internal.util.$Finalizer.run(Finalizer.java:114)

"pool-4-thread-8" #65 prio=5 os_prio=0 tid=0x00007f596002f000 nid=0x1c7e waiting on condition [0x00007f58f6b84000]
   java.lang.Thread.State: WAITING (parking)
	at sun.misc.Unsafe.park(Native Method)
	- parking to wait for  <0x00000000c21db938> (a java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
	at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
	at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
	at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
	at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1067)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1127)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)

"pool-4-thread-7" #64 prio=5 os_prio=0 tid=0x00007f59f1f57000 nid=0x1c7d waiting on condition [0x00007f5946fe1000]
   java.lang.Thread.State: WAITING (parking)
	at sun.misc.Unsafe.park(Native Method)
	- parking to wait for  <0x00000000c21db938> (a java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
	at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
	at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
	at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
	at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1067)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1127)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)

"pool-4-thread-6" #63 prio=5 os_prio=0 tid=0x00007f5958128800 nid=0x1c7a waiting on condition [0x00007f597dce0000]
   java.lang.Thread.State: WAITING (parking)
	at sun.misc.Unsafe.park(Native Method)
	- parking to wait for  <0x00000000c21db938> (a java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
	at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
	at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
	at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
	at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1067)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1127)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)

"pool-4-thread-5" #62 prio=5 os_prio=0 tid=0x00007f59f1f45800 nid=0x1c79 waiting on condition [0x00007f597de00000]
   java.lang.Thread.State: WAITING (parking)
	at sun.misc.Unsafe.park(Native Method)
	- parking to wait for  <0x00000000c21db938> (a java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
	at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
	at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
	at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
	at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1067)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1127)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)

"pool-4-thread-4" #61 prio=5 os_prio=0 tid=0x00007f59f1f5e000 nid=0x1c78 waiting on condition [0x00007f599d05e000]
   java.lang.Thread.State: WAITING (parking)
	at sun.misc.Unsafe.park(Native Method)
	- parking to wait for  <0x00000000c21db938> (a java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
	at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
	at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
	at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
	at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1067)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1127)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)

"pool-4-thread-3" #59 prio=5 os_prio=0 tid=0x00007f59f1f4a000 nid=0x1c76 waiting on condition [0x00007f594e6de000]
   java.lang.Thread.State: WAITING (parking)
	at sun.misc.Unsafe.park(Native Method)
	- parking to wait for  <0x00000000c21db938> (a java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
	at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
	at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
	at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
	at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1067)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1127)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)

"pool-4-thread-2" #56 prio=5 os_prio=0 tid=0x00007f59f21cf800 nid=0x1c69 waiting on condition [0x00007f597fefd000]
   java.lang.Thread.State: WAITING (parking)
	at sun.misc.Unsafe.park(Native Method)
	- parking to wait for  <0x00000000c21db938> (a java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
	at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
	at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
	at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
	at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1067)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1127)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)

"pool-4-thread-1" #55 prio=5 os_prio=0 tid=0x00007f595c31d000 nid=0x1c67 waiting on condition [0x00007f5965896000]
   java.lang.Thread.State: WAITING (parking)
	at sun.misc.Unsafe.park(Native Method)
	- parking to wait for  <0x00000000c21db938> (a java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
	at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
	at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
	at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
	at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1067)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1127)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)

"[ThreadPool Manager] - Idle Thread" #51 daemon prio=5 os_prio=0 tid=0x00007f598400b800 nid=0x1c46 in Object.wait() [0x00007f594e1db000]
   java.lang.Thread.State: WAITING (on object monitor)
	at java.lang.Object.wait(Native Method)
	at java.lang.Object.wait(Object.java:502)
	at org.eclipse.equinox.internal.util.impl.tpt.threadpool.Executor.run(Executor.java:106)
	- locked <0x00000000c1c30c98> (a org.eclipse.equinox.internal.util.impl.tpt.threadpool.Executor)

"Provisioning Event Dispatcher" #50 daemon prio=5 os_prio=0 tid=0x00007f596c10f000 nid=0x1c44 in Object.wait() [0x00007f594e2dc000]
   java.lang.Thread.State: WAITING (on object monitor)
	at java.lang.Object.wait(Native Method)
	at java.lang.Object.wait(Object.java:502)
	at org.eclipse.osgi.framework.eventmgr.EventManager$EventThread.getNextEvent(EventManager.java:400)
	- locked <0x00000000c1b382e0> (a org.eclipse.osgi.framework.eventmgr.EventManager$EventThread)
	at org.eclipse.osgi.framework.eventmgr.EventManager$EventThread.run(EventManager.java:336)

"Thread-8" #49 prio=5 os_prio=0 tid=0x00000000019bf000 nid=0x1c43 waiting on condition [0x00007f594e5dd000]
   java.lang.Thread.State: TIMED_WAITING (sleeping)
	at java.lang.Thread.sleep(Native Method)
	at org.eclipse.equinox.internal.p2.updatechecker.UpdateChecker$UpdateCheckThread.run(UpdateChecker.java:68)

"Java indexing" #30 daemon prio=4 os_prio=0 tid=0x00007f59f17eb000 nid=0x1c2c in Object.wait() [0x00007f596639a000]
   java.lang.Thread.State: WAITING (on object monitor)
	at java.lang.Object.wait(Native Method)
	at java.lang.Object.wait(Object.java:502)
	at org.eclipse.jdt.internal.core.search.processing.JobManager.run(JobManager.java:382)
	- locked <0x00000000c164b800> (a org.eclipse.jdt.internal.core.search.indexing.IndexManager)
	at java.lang.Thread.run(Thread.java:745)

"EventAdmin Async Event Dispatcher Thread" #29 daemon prio=6 os_prio=0 tid=0x00007f59f1479800 nid=0x1c2b in Object.wait() [0x00007f597c3f2000]
   java.lang.Thread.State: WAITING (on object monitor)
	at java.lang.Object.wait(Native Method)
	at java.lang.Object.wait(Object.java:502)
	at org.eclipse.osgi.framework.eventmgr.EventManager$EventThread.getNextEvent(EventManager.java:400)
	- locked <0x00000000c18821d8> (a org.eclipse.osgi.framework.eventmgr.EventManager$EventThread)
	at org.eclipse.osgi.framework.eventmgr.EventManager$EventThread.run(EventManager.java:336)

"Bundle File Closer" #24 daemon prio=6 os_prio=0 tid=0x00007f59702a8000 nid=0x1c24 in Object.wait() [0x00007f597d3a1000]
   java.lang.Thread.State: WAITING (on object monitor)
	at java.lang.Object.wait(Native Method)
	at java.lang.Object.wait(Object.java:502)
	at org.eclipse.osgi.framework.eventmgr.EventManager$EventThread.getNextEvent(EventManager.java:400)
	- locked <0x00000000c11977b8> (a org.eclipse.osgi.framework.eventmgr.EventManager$EventThread)
	at org.eclipse.osgi.framework.eventmgr.EventManager$EventThread.run(EventManager.java:336)

"EMF Reference Cleaner" #21 daemon prio=5 os_prio=0 tid=0x00007f598806b000 nid=0x1c1c in Object.wait() [0x00007f599c4ac000]
   java.lang.Thread.State: WAITING (on object monitor)
	at java.lang.Object.wait(Native Method)
	at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:143)
	- locked <0x00000000c06c1e20> (a java.lang.ref.ReferenceQueue$Lock)
	at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:164)
	at org.eclipse.emf.common.util.CommonUtil$1ReferenceClearingQueuePollingThread.run(CommonUtil.java:70)

"Worker-JM" #16 prio=5 os_prio=0 tid=0x00007f598c13d000 nid=0x1c19 in Object.wait() [0x00007f597fffe000]
   java.lang.Thread.State: WAITING (on object monitor)
	at java.lang.Object.wait(Native Method)
	at org.eclipse.core.internal.jobs.InternalWorker.run(InternalWorker.java:59)
	- locked <0x00000000c0ba4e80> (a java.util.ArrayList)

"[Timer] - Main Queue Handler" #15 daemon prio=5 os_prio=0 tid=0x00007f598c04f000 nid=0x1c18 in Object.wait() [0x00007f599c3ab000]
   java.lang.Thread.State: TIMED_WAITING (on object monitor)
	at java.lang.Object.wait(Native Method)
	at org.eclipse.equinox.internal.util.impl.tpt.timer.TimerImpl.run(TimerImpl.java:141)
	- locked <0x00000000c06cc380> (a java.lang.Object)
	at java.lang.Thread.run(Thread.java:745)

"Start Level: Equinox Container: 00700581-d871-0015-1761-b79fdc8d6ee1" #13 daemon prio=5 os_prio=0 tid=0x00007f59f06b3000 nid=0x1c16 in Object.wait() [0x00007f599c7ba000]
   java.lang.Thread.State: WAITING (on object monitor)
	at java.lang.Object.wait(Native Method)
	- waiting on <0x00000000c0499dd8> (a org.eclipse.osgi.framework.eventmgr.EventManager$EventThread)
	at java.lang.Object.wait(Object.java:502)
	at org.eclipse.osgi.framework.eventmgr.EventManager$EventThread.getNextEvent(EventManager.java:400)
	- locked <0x00000000c0499dd8> (a org.eclipse.osgi.framework.eventmgr.EventManager$EventThread)
	at org.eclipse.osgi.framework.eventmgr.EventManager$EventThread.run(EventManager.java:336)

"Framework Event Dispatcher: Equinox Container: 00700581-d871-0015-1761-b79fdc8d6ee1" #12 daemon prio=5 os_prio=0 tid=0x00007f59f06bf800 nid=0x1c15 in Object.wait() [0x00007f599c8bb000]
   java.lang.Thread.State: WAITING (on object monitor)
	at java.lang.Object.wait(Native Method)
	at java.lang.Object.wait(Object.java:502)
	at org.eclipse.osgi.framework.eventmgr.EventManager$EventThread.getNextEvent(EventManager.java:400)
	- locked <0x00000000c06cc4f0> (a org.eclipse.osgi.framework.eventmgr.EventManager$EventThread)
	at org.eclipse.osgi.framework.eventmgr.EventManager$EventThread.run(EventManager.java:336)

"Active Thread: Equinox Container: 00700581-d871-0015-1761-b79fdc8d6ee1" #10 prio=5 os_prio=0 tid=0x00007f59f0668000 nid=0x1c14 waiting on condition [0x00007f599c9be000]
   java.lang.Thread.State: TIMED_WAITING (parking)
	at sun.misc.Unsafe.park(Native Method)
	- parking to wait for  <0x00000000c06cd388> (a java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
	at java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:215)
	at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2078)
	at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1093)
	at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:809)
	at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1067)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1127)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)

"Service Thread" #8 daemon prio=9 os_prio=0 tid=0x00007f59f0192000 nid=0x1c0f runnable [0x0000000000000000]
   java.lang.Thread.State: RUNNABLE

"C1 CompilerThread2" #7 daemon prio=9 os_prio=0 tid=0x00007f59f0184800 nid=0x1c0e waiting on condition [0x0000000000000000]
   java.lang.Thread.State: RUNNABLE

"C2 CompilerThread1" #6 daemon prio=9 os_prio=0 tid=0x00007f59f0183000 nid=0x1c0d waiting on condition [0x0000000000000000]
   java.lang.Thread.State: RUNNABLE

"C2 CompilerThread0" #5 daemon prio=9 os_prio=0 tid=0x00007f59f0180000 nid=0x1c0c waiting on condition [0x0000000000000000]
   java.lang.Thread.State: RUNNABLE

"Signal Dispatcher" #4 daemon prio=9 os_prio=0 tid=0x00007f59f017e800 nid=0x1c0b waiting on condition [0x0000000000000000]
   java.lang.Thread.State: RUNNABLE

"Finalizer" #3 daemon prio=8 os_prio=0 tid=0x00007f59f0146000 nid=0x1c0a in Object.wait() [0x00007f59dd214000]
   java.lang.Thread.State: WAITING (on object monitor)
	at java.lang.Object.wait(Native Method)
	at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:143)
	- locked <0x00000000c0d24180> (a java.lang.ref.ReferenceQueue$Lock)
	at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:164)
	at java.lang.ref.Finalizer$FinalizerThread.run(Finalizer.java:209)

"Reference Handler" #2 daemon prio=10 os_prio=0 tid=0x00007f59f0144000 nid=0x1c09 in Object.wait() [0x00007f59dd315000]
   java.lang.Thread.State: WAITING (on object monitor)
	at java.lang.Object.wait(Native Method)
	at java.lang.Object.wait(Object.java:502)
	at java.lang.ref.Reference$ReferenceHandler.run(Reference.java:157)
	- locked <0x00000000c0d241b0> (a java.lang.ref.Reference$Lock)

"main" #1 prio=6 os_prio=0 tid=0x00007f59f000a000 nid=0x1c03 runnable [0x00007f59f7a43000]
   java.lang.Thread.State: RUNNABLE
	at org.eclipse.swt.internal.gtk.OS._g_main_context_prepare(Native Method)
	at org.eclipse.swt.internal.gtk.OS.g_main_context_prepare(OS.java:2442)
	at org.eclipse.swt.widgets.Display.sleep(Display.java:4297)
	at org.eclipse.ui.application.WorkbenchAdvisor.eventLoopIdle(WorkbenchAdvisor.java:368)
	at org.eclipse.ui.internal.ide.application.IDEWorkbenchAdvisor.eventLoopIdle(IDEWorkbenchAdvisor.java:858)
	at org.eclipse.ui.internal.Workbench$3.eventLoopIdle(Workbench.java:517)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$4.run(PartRenderingEngine.java:1132)
	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:337)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1018)
	at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:156)
	at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:654)
	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:337)
	at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:598)
	at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:150)
	at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:139)
	at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)
	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:134)
	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:380)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:235)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:497)
	at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:669)
	at org.eclipse.equinox.launcher.Main.basicRun(Main.java:608)
	at org.eclipse.equinox.launcher.Main.run(Main.java:1515)
	at org.eclipse.equinox.launcher.Main.main(Main.java:1488)

"VM Thread" os_prio=0 tid=0x00007f59f013f000 nid=0x1c08 runnable 

"GC task thread#0 (ParallelGC)" os_prio=0 tid=0x00007f59f001f800 nid=0x1c04 runnable 

"GC task thread#1 (ParallelGC)" os_prio=0 tid=0x00007f59f0021000 nid=0x1c05 runnable 

"GC task thread#2 (ParallelGC)" os_prio=0 tid=0x00007f59f0023000 nid=0x1c06 runnable 

"GC task thread#3 (ParallelGC)" os_prio=0 tid=0x00007f59f0024800 nid=0x1c07 runnable 

"VM Periodic Task Thread" os_prio=0 tid=0x00007f59f0194800 nid=0x1c10 waiting on condition 

JNI global references: 807

Heap
 PSYoungGen      total 203776K, used 508K [0x00000000eab00000, 0x00000000f8400000, 0x0000000100000000)
  eden space 187392K, 0% used [0x00000000eab00000,0x00000000eab7f3a0,0x00000000f6200000)
  from space 16384K, 0% used [0x00000000f7400000,0x00000000f7400000,0x00000000f8400000)
  to   space 17408K, 0% used [0x00000000f6200000,0x00000000f6200000,0x00000000f7300000)
 ParOldGen       total 246784K, used 107266K [0x00000000c0000000, 0x00000000cf100000, 0x00000000eab00000)
  object space 246784K, 43% used [0x00000000c0000000,0x00000000c68c0b78,0x00000000cf100000)
 Metaspace       used 132995K, capacity 144194K, committed 144728K, reserved 1175552K
  class space    used 15378K, capacity 18954K, committed 19032K, reserved 1048576K

Quit (core dumped)
Comment 1 Stephan Herrmann CLA 2015-10-14 18:07:06 EDT 
In that stack dump I don't really see any activity that looks like blocking the UI. In particular I don't see any relevant activity in JDT.

Is the problem reproducible on your side?

Also to analyze a "hang" it's a good habit to take several stack dumps in sequence, so we could see if any progress is being made in any of the threads.
That of course requires to take stack dumps without terminating the JVM :/
Comment 2 Eclipse Genie CLA 2020-04-25 17:02:56 EDT 
This bug hasn't had any activity in quite some time. Maybe the problem got resolved, was a duplicate of something else, or became less pressing for some reason - or maybe it's still relevant but just hasn't been looked at yet. As such, we're closing this bug.

If you have further information on the current state of the bug, please add it and reopen this bug. The information can be, for example, that the problem still occurs, that you still want the feature, that more information is needed, or that the bug is (for whatever reason) no longer relevant.

--
The automated Eclipse Genie.