[news.eclipse.tools.emf] Re: [CDO] Deadlock in LRU cache?

[Eike Stepper <stepper@xxxxxxxxxx>]

Stefan Winkler schrieb:
> Hi,
>
> can someone who is a little more into the LRU caching code confirm 
> that this is a deadlock condition (it behaves like one ...), so I can 
> open a bug?
Sorry, due to wrapped lines I can't read the stack trace. Can you please 
attach it as a file?

Cheers
/Eike


> Thanks.
>
> Thread [ModalContext] (Suspended)      
> LRURevisionCache.removeHolder(RevisionHolder) line: 382      
> LRURevisionCache.access$1(LRURevisionCache, RevisionHolder) line:
>    380      LRURevisionCache$LRU.evict(LRURevisionHolder) line: 439   
>    LRURevisionCache$LRU(LRURevisionList).eviction() line: 61      
> LRURevisionCache$LRU(LRURevisionList).add(DLRevisionHolder) line: 46   
>    LRURevisionCache.addRevision(InternalCDORevision) line: 181      
> TwoLevelRevisionCache.addRevision(InternalCDORevision) line: 138      
> CDORevisionManagerImpl(CDORevisionResolverImpl).addCachedRevisionIfNotNull(InternalCDORevision) 
>
>    line: 248      
> CDORevisionManagerImpl(CDORevisionResolverImpl).getRevision(CDOID,
>    int, boolean) line: 95      
> CDORevisionManagerImpl(CDORevisionResolverImpl).getRevision(CDOID,
>    int, boolean) line: 1      CDOViewImpl.getRevision(CDOID, boolean) 
> line: 435      CDOViewImpl.createObject(CDOID) line: 574      
> CDOViewImpl.getObject(CDOID, boolean) line: 473      
> CDOViewImpl.convertIDToObject(Object) line: 705      
> CDOStore.get(InternalEObject, EStructuralFeature, int) line: 170      
> CDOObjectImpl$CDOStoreEList<E>.delegateGet(int) line: 928      
> CDOObjectImpl$CDOStoreEList<E>(DelegatingEList<E>).get(int) line:
>    396      DelegatingEList$EIterator<E1>.doNext() line: 1075      
> DelegatingEList$EIterator<E1>.next() line: 1062      
> ImportLinkXmlTask.getSnapshotFor(String, Date) line: 192      
> ImportLinkXmlTask.processBaseline(Baseline) line: 119      
> ImportLinkXmlTask.doTask() line: 72      
> ImportLinkXmlTask(AbstractRequipseTask).run(IProgressMonitor) line:
>    55      ModalContext$ModalContextThread.run() line: 121  
> Thread [main] (Suspended)      LRURevisionHolder.stamp() line: 67      
> LRURevisionHolder.getRevision() line: 55      
> LRURevisionCache.getRevision(CDOID) line: 133      
> TwoLevelRevisionCache.getRevision(CDOID) line: 97      
> CDORevisionManagerImpl(CDORevisionResolverImpl).getRevision(CDOID,
>    int, boolean) line: 84      
> CDORevisionManagerImpl(CDORevisionResolverImpl).getRevision(CDOID,
>    int, boolean) line: 1      CDOViewImpl.getRevision(CDOID, boolean) 
> line: 435      CDOViewImpl.createObject(CDOID) line: 574      
> CDOViewImpl.getObject(CDOID, boolean) line: 473      
> CDOViewImpl.getObject(CDOID) line: 440      
> CDOViewImpl.getObject(CDOID) line: 1      
> GeneralArtifactView$3$1.run() line: 247      RunnableLock.run() line: 
> 35      UISynchronizer(Synchronizer).runAsyncMessages(boolean) line: 
> 133      Display.runAsyncMessages(boolean) line: 3378      
> Display.readAndDispatch() line: 3036      
> ModalContext$ModalContextThread.block() line: 172      
> ModalContext.run(IRunnableWithProgress, boolean, IProgressMonitor,
>    Display) line: 370      WizardDialog.run(boolean, boolean, 
> IRunnableWithProgress) line: 934      
> ImportLinkXmlWizard.performFinish() line: 41      
> WizardDialog.finishPressed() line: 742      
> WizardDialog.buttonPressed(int) line: 373      
> Dialog$2.widgetSelected(SelectionEvent) line: 624      
> TypedListener.handleEvent(Event) line: 228      
> EventTable.sendEvent(Event) line: 84      
> Button(Widget).sendEvent(Event) line: 1158      
> Display.runDeferredEvents() line: 3401      Display.readAndDispatch() 
> line: 3033      WizardDialog(Window).runEventLoop(Shell) line: 825   
>    WizardDialog(Window).open() line: 801      
> WizardHandler$Import.executeHandler(ExecutionEvent) line: 146      
> WizardHandler$Import(WizardHandler).execute(ExecutionEvent) line:
>    273      HandlerProxy.execute(ExecutionEvent) line: 281      
> Command.executeWithChecks(ExecutionEvent) line: 476      
> ParameterizedCommand.executeWithChecks(Object, Object) line: 508      
> HandlerService.executeCommand(ParameterizedCommand, Event) line: 169   
>    SlaveHandlerService.executeCommand(ParameterizedCommand, Event)
>    line: 247      
> ActionFactory$WorkbenchCommandAction(CommandAction).runWithEvent(Event)
>    line: 157      ActionContributionItem.handleWidgetSelection(Event, 
> boolean) line:
>    583      ActionContributionItem.access$2(ActionContributionItem, 
> Event,
>    boolean) line: 500      ActionContributionItem$5.handleEvent(Event) 
> line: 411      EventTable.sendEvent(Event) line: 84      
> MenuItem(Widget).sendEvent(Event) line: 1158      
> Display.runDeferredEvents() line: 3401      Display.readAndDispatch() 
> line: 3033      Workbench.runEventLoop(Window$IExceptionHandler, 
> Display) line: 2382      Workbench.runUI() line: 2346      
> Workbench.access$4(Workbench) line: 2198      Workbench$5.run() line: 
> 493      Realm.runWithDefault(Realm, Runnable) line: 288      
> Workbench.createAndRunWorkbench(Display, WorkbenchAdvisor) line: 488   
>    PlatformUI.createAndRunWorkbench(Display, WorkbenchAdvisor) line:
>    149      IDEApplication.start(IApplicationContext) line: 113      
> EclipseAppHandle.run(Object) line: 193      
> EclipseAppLauncher.runApplication(Object) line: 110      
> EclipseAppLauncher.start(Object) line: 79      
> EclipseStarter.run(Object) line: 382      EclipseStarter.run(String[], 
> Runnable) line: 179      NativeMethodAccessorImpl.invoke0(Method, 
> Object, Object[]) line: not
>    available [native method]      
> NativeMethodAccessorImpl.invoke(Object, Object[]) line: 39      
> DelegatingMethodAccessorImpl.invoke(Object, Object[]) line: 25      
> Method.invoke(Object, Object...) line: 597      
> Main.invokeFramework(String[], URL[]) line: 549      
> Main.basicRun(String[]) line: 504      Main.run(String[]) line: 1236   
>    Main.main(String[]) line: 1212  
> Cheers,
> Stefan