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Bug 305360

Summary:	deadlock in ASTProvider.getAST()
Product:	[Eclipse Project] JDT	Reporter:	Carsten Pfeiffer <carsten.pfeiffer>
Component:	UI	Assignee:	JDT-UI-Inbox <jdt-ui-inbox>
Status:	CLOSED DUPLICATE	QA Contact:
Severity:	normal
Priority:	P3	CC:	markus.kell.r
Version:	3.5.2
Target Milestone:	---
Hardware:	Other
OS:	Linux
Whiteboard:

Description Carsten Pfeiffer

2010-03-10 12:01:08 EST

Build Identifier: M20100211-1343

I just had a deadlock after copying something in a java editor. I haven't ever had this before, so it might the shiny new Eclipse 3.5.2.

The least I could do was create a stacktrace (irrelevant stuff stripped):

"Text Viewer Hover Presenter" daemon prio=10 tid=0x0dd2d800 nid=0x64a3 in Object.wait() [0xa725a000]
   java.lang.Thread.State: WAITING (on object monitor)
	at java.lang.Object.wait(Native Method)
	at java.lang.Object.wait(Object.java:485)
	at org.eclipse.jdt.internal.ui.javaeditor.ASTProvider.getAST(ASTProvider.java:456)
	- locked <0x4d827570> (a java.lang.Object)
	at org.eclipse.jdt.ui.SharedASTProvider.getAST(SharedASTProvider.java:126)
	at org.eclipse.jdt.internal.ui.text.java.hover.NLSStringHover.internalGetHoverInfo(NLSStringHover.java:127)
	at org.eclipse.jdt.internal.ui.text.java.hover.NLSStringHover.getHoverInfo2(NLSStringHover.java:106)
	at org.eclipse.jdt.internal.ui.text.java.hover.BestMatchHover.getHoverInfo2(BestMatchHover.java:129)
	at org.eclipse.jdt.internal.ui.text.java.hover.JavaEditorTextHoverProxy.getHoverInfo2(JavaEditorTextHoverProxy.java:82)
	at org.eclipse.jface.text.TextViewerHoverManager$4.run(TextViewerHoverManager.java:166)

"Worker-467" prio=10 tid=0x0e036800 nid=0x62cd waiting for monitor entry [0xa5105000]
   java.lang.Thread.State: BLOCKED (on object monitor)
	at org.eclipse.jdt.internal.ui.viewsupport.SelectionListenerWithASTManager$3.run(SelectionListenerWithASTManager.java:154)
	- waiting to lock <0x58ed02d8> (a java.lang.Object)
	at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)

"Worker-464" prio=10 tid=0xa4a7a400 nid=0x60b9 in Object.wait() [0xa6ae0000]
   java.lang.Thread.State: WAITING (on object monitor)
	at java.lang.Object.wait(Native Method)
	at java.lang.Object.wait(Object.java:485)
	at org.eclipse.jdt.internal.ui.javaeditor.ASTProvider.getAST(ASTProvider.java:456)
	- locked <0x4d827570> (a java.lang.Object)
	at org.eclipse.jdt.ui.SharedASTProvider.getAST(SharedASTProvider.java:126)
	at org.eclipse.jdt.internal.ui.viewsupport.SelectionListenerWithASTManager$PartListenerGroup.calculateASTandInform(SelectionListenerWithASTManager.java:169)
	at org.eclipse.jdt.internal.ui.viewsupport.SelectionListenerWithASTManager$3.run(SelectionListenerWithASTManager.java:154)
	- locked <0x58ed02d8> (a java.lang.Object)
	at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)

"Worker-459" prio=10 tid=0x0dcc3800 nid=0x5e2a waiting for monitor entry [0xa5475000]
   java.lang.Thread.State: BLOCKED (on object monitor)
	at org.eclipse.jdt.internal.ui.viewsupport.SelectionListenerWithASTManager$3.run(SelectionListenerWithASTManager.java:154)
	- waiting to lock <0x58ed02d8> (a java.lang.Object)
	at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)

"Worker-447" prio=10 tid=0x0a238400 nid=0x5b45 waiting for monitor entry [0xa6c24000]
   java.lang.Thread.State: BLOCKED (on object monitor)
	at org.eclipse.jdt.internal.ui.viewsupport.SelectionListenerWithASTManager$3.run(SelectionListenerWithASTManager.java:154)
	- waiting to lock <0x58ed02d8> (a java.lang.Object)
	at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)

"9125419@qtp-14071821-1 - Acceptor0 SelectChannelConnector@0.0.0.0:35562" prio=10 tid=0xab02ec00 nid=0x3247 runnable [0xa8091000]
   java.lang.Thread.State: RUNNABLE
	at sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)
	at sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:210)
	at sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:65)
	at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:69)
	- locked <0x4fcd74e8> (a sun.nio.ch.Util$1)
	- locked <0x4fcd74d8> (a java.util.Collections$UnmodifiableSet)
	- locked <0x4fcd72f0> (a sun.nio.ch.EPollSelectorImpl)
	at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:80)
	at org.mortbay.io.nio.SelectorManager$SelectSet.doSelect(SelectorManager.java:432)
	at org.mortbay.io.nio.SelectorManager.doSelect(SelectorManager.java:185)
	at org.mortbay.jetty.nio.SelectChannelConnector.accept(SelectChannelConnector.java:124)
	at org.mortbay.jetty.AbstractConnector$Acceptor.run(AbstractConnector.java:707)
	at org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:520)

"main" prio=10 tid=0x0972ec00 nid=0x314b in Object.wait() [0xbfe87000]
   java.lang.Thread.State: WAITING (on object monitor)
	at java.lang.Object.wait(Native Method)
	at java.lang.Object.wait(Object.java:485)
	at org.eclipse.jdt.internal.ui.javaeditor.ASTProvider.getAST(ASTProvider.java:456)
	- locked <0x4d827570> (a java.lang.Object)
	at org.eclipse.jdt.ui.SharedASTProvider.getAST(SharedASTProvider.java:126)
	at org.eclipse.jdt.internal.ui.javaeditor.ClipboardOperationAction.getClipboardData(ClipboardOperationAction.java:406)
	at org.eclipse.jdt.internal.ui.javaeditor.ClipboardOperationAction.doCutCopyWithImportsOperation(ClipboardOperationAction.java:333)
	at org.eclipse.jdt.internal.ui.javaeditor.ClipboardOperationAction.internalDoOperation(ClipboardOperationAction.java:289)
	at org.eclipse.jdt.internal.ui.javaeditor.ClipboardOperationAction$1.run(ClipboardOperationAction.java:258)
	at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70)
	at org.eclipse.jdt.internal.ui.javaeditor.ClipboardOperationAction.run(ClipboardOperationAction.java:256)
	at org.eclipse.jface.action.Action.runWithEvent(Action.java:498)
	at org.eclipse.ui.commands.ActionHandler.execute(ActionHandler.java:185)
	at org.eclipse.ui.internal.handlers.LegacyHandlerWrapper.execute(LegacyHandlerWrapper.java:109)
	at org.eclipse.core.commands.Command.executeWithChecks(Command.java:476)
	at org.eclipse.core.commands.ParameterizedCommand.executeWithChecks(ParameterizedCommand.java:508)
	at org.eclipse.ui.internal.handlers.HandlerService.executeCommand(HandlerService.java:169)
	at org.eclipse.ui.internal.keys.WorkbenchKeyboard.executeCommand(WorkbenchKeyboard.java:470)
	at org.eclipse.ui.internal.keys.WorkbenchKeyboard.press(WorkbenchKeyboard.java:824)
	at org.eclipse.ui.internal.keys.WorkbenchKeyboard.processKeyEvent(WorkbenchKeyboard.java:880)
	at org.eclipse.ui.internal.keys.WorkbenchKeyboard.filterKeySequenceBindings(WorkbenchKeyboard.java:569)
	at org.eclipse.ui.internal.keys.WorkbenchKeyboard.access$3(WorkbenchKeyboard.java:510)
	at org.eclipse.ui.internal.keys.WorkbenchKeyboard$KeyDownFilter.handleEvent(WorkbenchKeyboard.java:125)
	at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
	at org.eclipse.swt.widgets.Display.filterEvent(Display.java:1467)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1175)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1200)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1185)
	at org.eclipse.swt.widgets.Widget.sendKeyEvent(Widget.java:1212)
	at org.eclipse.swt.widgets.Widget.gtk_key_press_event(Widget.java:706)
	at org.eclipse.swt.widgets.Control.gtk_key_press_event(Control.java:2837)
	at org.eclipse.swt.widgets.Composite.gtk_key_press_event(Composite.java:703)
	at org.eclipse.swt.widgets.Widget.windowProc(Widget.java:1570)
	at org.eclipse.swt.widgets.Control.windowProc(Control.java:4594)
	at org.eclipse.swt.widgets.Display.windowProc(Display.java:4191)
	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:7603)
	at org.eclipse.swt.widgets.Display.eventProc(Display.java:1185)
	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:1860)
	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3110)
	at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2405)
	at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2369)
	at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2221)
	at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:500)
	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
	at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:493)
	at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
	at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:113)
	at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:194)
	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:368)
	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:559)
	at org.eclipse.equinox.launcher.Main.basicRun(Main.java:514)
	at org.eclipse.equinox.launcher.Main.run(Main.java:1311)


Reproducible: Couldn't Reproduce

Comment 1 Markus Keller

2010-03-10 13:40:24 EST

That looks very much like bug 302581, which has recently been fixed (in 3.6).

*** This bug has been marked as a duplicate of bug 302581 ***