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See bug 575616. For some reason the platform is disposing UI elements after the Display should have been disposed (but apparently wasn't). This lead to a hang, whereas it should result in an exception. Reproduction steps are unclear, likely the UI and workspace state were broken. Hang is between main thread and closing some bundle, after Eclipse shudown: "Framework stop" #71 prio=6 os_prio=0 tid=0x00007f5f41c8a800 nid=0xc39e in Object.wait() [0x00007f52b3425000] 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.swt.widgets.Synchronizer.syncExec(Synchronizer.java:253) - locked <0x00007f5b889300f8> (a org.eclipse.swt.widgets.RunnableLock) at org.eclipse.ui.internal.UISynchronizer.syncExec(UISynchronizer.java:146) at org.eclipse.swt.widgets.Display.syncExec(Display.java:6018) at org.eclipse.e4.ui.internal.workbench.swt.E4Application$1.syncExec(E4Application.java:219) at org.eclipse.e4.ui.services.internal.events.UIEventHandler.handleEvent(UIEventHandler.java:38) at org.eclipse.equinox.internal.event.EventHandlerWrapper.handleEvent(EventHandlerWrapper.java:205) at org.eclipse.equinox.internal.event.EventHandlerTracker.dispatchEvent(EventHandlerTracker.java:203) at org.eclipse.equinox.internal.event.EventHandlerTracker.dispatchEvent(EventHandlerTracker.java:1) at org.eclipse.osgi.framework.eventmgr.EventManager.dispatchEvent(EventManager.java:234) at org.eclipse.osgi.framework.eventmgr.ListenerQueue.dispatchEventSynchronous(ListenerQueue.java:151) at org.eclipse.equinox.internal.event.EventAdminImpl.dispatchEvent(EventAdminImpl.java:132) at org.eclipse.equinox.internal.event.EventAdminImpl.sendEvent(EventAdminImpl.java:75) at org.eclipse.equinox.internal.event.EventComponent.sendEvent(EventComponent.java:44) at org.eclipse.e4.ui.services.internal.events.EventBroker.send(EventBroker.java:55) at org.eclipse.e4.ui.internal.workbench.UIEventPublisher.notifyChanged(UIEventPublisher.java:63) at org.eclipse.emf.common.notify.impl.BasicNotifierImpl.eNotify(BasicNotifierImpl.java:424) at org.eclipse.emf.ecore.util.EcoreEList.dispatchNotification(EcoreEList.java:249) at org.eclipse.emf.common.notify.impl.NotifyingListImpl.remove(NotifyingListImpl.java:713) at org.eclipse.emf.common.util.AbstractEList.remove(AbstractEList.java:456) at org.eclipse.emf.common.util.BasicEMap.remove(BasicEMap.java:1751) at org.eclipse.emf.common.util.BasicEMap.removeKey(BasicEMap.java:628) at org.eclipse.emf.common.util.BasicEMap$DelegatingMap.remove(BasicEMap.java:798) at org.eclipse.e4.ui.internal.workbench.OpaqueElementUtil.clearOpaqueItem(OpaqueElementUtil.java:50) at org.eclipse.ui.internal.e4.compatibility.CompatibilityView.clearOpaqueMenuItems(CompatibilityView.java:240) at org.eclipse.ui.internal.e4.compatibility.CompatibilityView.disposeSite(CompatibilityView.java:273) at org.eclipse.ui.internal.e4.compatibility.CompatibilityPart.internalDisposeSite(CompatibilityPart.java:430) at org.eclipse.ui.internal.e4.compatibility.CompatibilityPart.invalidate(CompatibilityPart.java:268) at org.eclipse.ui.internal.e4.compatibility.CompatibilityPart.destroy(CompatibilityPart.java:417) 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:498) at org.eclipse.e4.core.internal.di.MethodRequestor.execute(MethodRequestor.java:58) at org.eclipse.e4.core.internal.di.InjectorImpl.processAnnotated(InjectorImpl.java:1001) at org.eclipse.e4.core.internal.di.InjectorImpl.processAnnotated(InjectorImpl.java:966) at org.eclipse.e4.core.internal.di.InjectorImpl.disposed(InjectorImpl.java:462) at org.eclipse.e4.core.internal.di.Requestor.disposed(Requestor.java:160) at org.eclipse.e4.core.internal.contexts.ContextObjectSupplier$ContextInjectionListener.update(ContextObjectSupplier.java:82) at org.eclipse.e4.core.internal.contexts.TrackableComputationExt.update(TrackableComputationExt.java:106) at org.eclipse.e4.core.internal.contexts.TrackableComputationExt.handleInvalid(TrackableComputationExt.java:69) at org.eclipse.e4.core.internal.contexts.EclipseContext.dispose(EclipseContext.java:186) at org.eclipse.e4.core.internal.contexts.EclipseContext.dispose(EclipseContext.java:171) at org.eclipse.e4.core.internal.contexts.EclipseContext.dispose(EclipseContext.java:171) at org.eclipse.e4.core.internal.contexts.EclipseContext.dispose(EclipseContext.java:171) at org.eclipse.e4.core.internal.contexts.EclipseContext.dispose(EclipseContext.java:171) at org.eclipse.e4.core.internal.contexts.osgi.EclipseContextOSGi.dispose(EclipseContextOSGi.java:102) at org.eclipse.e4.core.internal.contexts.osgi.EclipseContextOSGi.bundleChanged(EclipseContextOSGi.java:144) at org.eclipse.osgi.internal.framework.BundleContextImpl.dispatchEvent(BundleContextImpl.java:973) at org.eclipse.osgi.framework.eventmgr.EventManager.dispatchEvent(EventManager.java:234) at org.eclipse.osgi.framework.eventmgr.ListenerQueue.dispatchEventSynchronous(ListenerQueue.java:151) at org.eclipse.osgi.internal.framework.EquinoxEventPublisher.publishBundleEventPrivileged(EquinoxEventPublisher.java:234) at org.eclipse.osgi.internal.framework.EquinoxEventPublisher.publishBundleEvent(EquinoxEventPublisher.java:140) at org.eclipse.osgi.internal.framework.EquinoxEventPublisher.publishBundleEvent(EquinoxEventPublisher.java:132) at org.eclipse.osgi.internal.framework.EquinoxContainerAdaptor.publishModuleEvent(EquinoxContainerAdaptor.java:231) at org.eclipse.osgi.container.Module.publishEvent(Module.java:493) at org.eclipse.osgi.container.Module.doStop(Module.java:651) at org.eclipse.osgi.container.Module.stop(Module.java:515) at org.eclipse.osgi.container.SystemModule.stop(SystemModule.java:207) at org.eclipse.osgi.internal.framework.EquinoxBundle$SystemBundle$EquinoxSystemModule$1.run(EquinoxBundle.java:220) at java.lang.Thread.run(Thread.java:748) "main" #1 prio=6 os_prio=0 tid=0x00007f5f4004f800 nid=0xc168 in Object.wait() [0x00007f5f47d9d000] java.lang.Thread.State: WAITING (on object monitor) at java.lang.Object.wait(Native Method) at org.eclipse.osgi.container.SystemModule.waitForStop(SystemModule.java:173) - locked <0x00007f53304c01d8> (a java.util.concurrent.atomic.AtomicReference) at org.eclipse.osgi.internal.framework.EquinoxBundle$SystemBundle.waitForStop(EquinoxBundle.java:306) at org.eclipse.osgi.launch.Equinox.waitForStop(Equinox.java:198) at org.eclipse.core.runtime.adaptor.EclipseStarter.shutdown(EclipseStarter.java:456) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:274) 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:498) at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:660) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:597) at org.eclipse.equinox.launcher.Main.run(Main.java:1468) at org.eclipse.equinox.launcher.Main.main(Main.java:1441)
Probably reproducible with some SWT snippet, where Display event processing is done but the Display is not disposed yet.
