Description Dirk Baeumer 2003-02-14 12:12:51 EST

I200302131253

Due to change in the Java core (batching of Java Model deltas on working 
copies) we are faced with dead locks. They occur due to uncoordinated aquiring 
of reconcile and workspace looks. A typical stack trace showing the problem 
looks like: 

org.eclipse.core.launcher.Main at localhost:12001
	System Thread [Finalizer] (Running)
	System Thread [Reference Handler] (Running)
	Thread [main] (Suspended)
		ImportsStructure.getReplaceRange(TextBuffer) line: 559
		ImportsStructure.create(boolean, IProgressMonitor) line: 519
		AddUnimplementedMethodsOperation.run(IProgressMonitor) line: 79
		BatchOperation.executeOperation() line: 34
		BatchOperation(JavaModelOperation).execute() line: 356
		BatchOperation(JavaModelOperation).run(IProgressMonitor) line: 
684
		Workspace.run(IWorkspaceRunnable, IProgressMonitor) line: 1588
		JavaCore.run(IWorkspaceRunnable, IProgressMonitor) line: 2634
		WorkbenchRunnableAdapter.run(IProgressMonitor) line: 32
		BusyIndicatorRunnableContext$BusyRunnable.internalRun(boolean, 
IRunnableWithProgress) line: 107
		BusyIndicatorRunnableContext$BusyRunnable.run() line: 74
		BusyIndicator.showWhile(Display, Runnable) line: 65
		BusyIndicatorRunnableContext.run(boolean, boolean, 
IRunnableWithProgress) line: 120
		OverrideMethodsAction.run(Shell, IType, IEditorPart) line: 180
		OverrideMethodsAction.run(IStructuredSelection) line: 133
		OverrideMethodsAction(SelectionDispatchAction).dispatchRun
(ISelection) line: 191
		OverrideMethodsAction(SelectionDispatchAction).run() line: 169
		OverrideMethodsAction(Action).runWithEvent(Event) line: 804
		ActionContributionItem.handleWidgetSelection(Event) line: 450
		ActionContributionItem.handleWidgetEvent(Event) line: 398
		ActionContributionItem.access$0(ActionContributionItem, Event) 
line: 392
		ActionContributionItem$ActionListener.handleEvent(Event) line: 
72
		EventTable.sendEvent(Event) line: 77
		MenuItem(Widget).sendEvent(Event) line: 836
		Display.runDeferredEvents() line: 1692
		Display.readAndDispatch() line: 1410
		Workbench.runEventLoop(Window$IExceptionHandler) line: 1288
		Workbench.run(Object) line: 1271
		InternalBootLoader.run(String, URL, String, String[], Runnable) 
line: 845
		BootLoader.run(String, URL, String, String[], Runnable) line: 
461
		NativeMethodAccessorImpl.invoke0(Method, Object, Object[]) 
line: not available [native method]
		NativeMethodAccessorImpl.invoke(Object, Object[]) line: 39 
[local variables unavailable]
		DelegatingMethodAccessorImpl.invoke(Object, Object[]) line: 25 
[local variables unavailable]
		Method.invoke(Object, Object[]) line: 324 [local variables 
unavailable]
		Main.basicRun(String[]) line: 247
		Main.run(String[]) line: 703
		Main.main(String[]) line: 539
	System Thread [Signal Dispatcher] (Running)
	Thread [Java indexing] (Running)
	Thread [Decoration] (Running)
	Thread [org.eclipse.jdt.internal.ui.text.JavaReconciler] (Suspended)
		Object.wait(long) line: not available [native method]
		Semaphore(Object).wait() line: 426 [local variables unavailable]
		Semaphore.acquire() line: 24
		UIWorkspaceLock(WorkspaceLock).acquire() line: 49
		UIWorkspaceLock.acquire() line: 40
		WorkManager.checkIn() line: 80
		Workspace.prepareOperation() line: 1551
		Workspace.run(IWorkspaceRunnable, IProgressMonitor) line: 1586
		WorkingCopy(JavaElement).runOperation(JavaModelOperation, 
IProgressMonitor) line: 556
		WorkingCopy.reconcile(boolean, IProgressMonitor) line: 415
		JavaReconcilingStrategy.reconcile() line: 72
		JavaReconcilingStrategy.reconcile(IRegion) line: 99
		JavaReconciler(MonoReconciler).process(DirtyRegion) line: 76
		AbstractReconciler$BackgroundThread.run() line: 189