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The following stack indicates that TypeHierarchy.refresh is called synchronously on file save: "main" prio=10 tid=0x080cc000 nid=0x21ec runnable [0xfff83000..0xfff87294] java.lang.Thread.State: RUNNABLE at org.eclipse.jdt.internal.core.index.DiskIndex.addQueryResults(DiskIndex.java:192) at org.eclipse.jdt.internal.core.index.Index.query(Index.java:137) at org.eclipse.jdt.internal.core.search.matching.SuperTypeReferencePattern.queryIn(SuperTypeReferencePattern.java:272) at org.eclipse.jdt.core.search.SearchPattern.findIndexMatches(SearchPattern.java:2109) at org.eclipse.jdt.internal.core.search.matching.MatchLocator.findIndexMatches(MatchLocator.java:264) at org.eclipse.jdt.internal.core.search.PatternSearchJob.search(PatternSearchJob.java:97) at org.eclipse.jdt.internal.core.search.SubTypeSearchJob.search(SubTypeSearchJob.java:44) at org.eclipse.jdt.internal.core.search.PatternSearchJob.execute(PatternSearchJob.java:63) at org.eclipse.jdt.internal.core.search.processing.JobManager.performConcurrentJob(JobManager.java:276) at org.eclipse.jdt.internal.core.hierarchy.IndexBasedHierarchyBuilder.searchAllPossibleSubTypes(IndexBasedHierarchyBuilder.java:523) at org.eclipse.jdt.internal.core.hierarchy.IndexBasedHierarchyBuilder.determinePossibleSubTypes(IndexBasedHierarchyBuilder.java:406) at org.eclipse.jdt.internal.core.hierarchy.IndexBasedHierarchyBuilder.build(IndexBasedHierarchyBuilder.java:120) at org.eclipse.jdt.internal.core.hierarchy.TypeHierarchy.compute(TypeHierarchy.java:300) at org.eclipse.jdt.internal.core.hierarchy.TypeHierarchy.refresh(TypeHierarchy.java:1255) - locked <0xa76de7e8> (a org.eclipse.jdt.internal.core.hierarchy.TypeHierarchy) at com.google.gdt.eclipse.core.TypeHierarchyCache$TypeHierarchyUpdater.typeHierarchyChanged(TypeHierarchyCache.java:41) at org.eclipse.jdt.internal.core.hierarchy.TypeHierarchy$1.run(TypeHierarchy.java:365) at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42) at org.eclipse.jdt.internal.core.hierarchy.TypeHierarchy.fireChange(TypeHierarchy.java:360) at org.eclipse.jdt.internal.core.hierarchy.TypeHierarchy.elementChanged(TypeHierarchy.java:330) at org.eclipse.jdt.internal.core.DeltaProcessor$3.run(DeltaProcessor.java:1557) at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42) at org.eclipse.jdt.internal.core.DeltaProcessor.notifyListeners(DeltaProcessor.java:1547) at org.eclipse.jdt.internal.core.DeltaProcessor.firePostChangeDelta(DeltaProcessor.java:1381) at org.eclipse.jdt.internal.core.DeltaProcessor.fire(DeltaProcessor.java:1357) at org.eclipse.jdt.internal.core.DeltaProcessor.resourceChanged(DeltaProcessor.java:1958) at org.eclipse.jdt.internal.core.DeltaProcessingState.resourceChanged(DeltaProcessingState.java:470) at org.eclipse.core.internal.events.NotificationManager$2.run(NotificationManager.java:291) at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42) at org.eclipse.core.internal.events.NotificationManager.notify(NotificationManager.java:285) at org.eclipse.core.internal.events.NotificationManager.broadcastChanges(NotificationManager.java:149) at org.eclipse.core.internal.resources.Workspace.broadcastPostChange(Workspace.java:313) at org.eclipse.core.internal.resources.Workspace.endOperation(Workspace.java:1022) at org.eclipse.core.internal.resources.Workspace.run(Workspace.java:1809) at org.eclipse.ui.actions.WorkspaceModifyOperation.run(WorkspaceModifyOperation.java:118) - locked <0xad29a798> (a org.eclipse.ui.actions.WorkspaceModifyDelegatingOperation) at org.eclipse.ui.internal.editors.text.WorkspaceOperationRunner.run(WorkspaceOperationRunner.java:75) at org.eclipse.ui.internal.editors.text.WorkspaceOperationRunner.run(WorkspaceOperationRunner.java:65) at org.eclipse.ui.editors.text.TextFileDocumentProvider.executeOperation(TextFileDocumentProvider.java:456) at org.eclipse.ui.editors.text.TextFileDocumentProvider.saveDocument(TextFileDocumentProvider.java:772) at org.eclipse.ui.texteditor.AbstractTextEditor.performSave(AbstractTextEditor.java:4945) at org.eclipse.jdt.internal.ui.javaeditor.CompilationUnitEditor.performSave(CompilationUnitEditor.java:1230) at org.eclipse.jdt.internal.ui.javaeditor.CompilationUnitEditor.doSave(CompilationUnitEditor.java:1283) - locked <0xaa367800> (a org.eclipse.jdt.internal.core.CompilationUnit) at org.eclipse.ui.texteditor.AbstractTextEditor$TextEditorSavable.doSave(AbstractTextEditor.java:7066) at org.eclipse.ui.Saveable.doSave(Saveable.java:214) at org.eclipse.ui.internal.SaveableHelper.doSaveModel(SaveableHelper.java:346) at org.eclipse.ui.internal.SaveableHelper$3.run(SaveableHelper.java:193) at org.eclipse.ui.internal.SaveableHelper$5.run(SaveableHelper.java:274) at org.eclipse.jface.operation.ModalContext.runInCurrentThread(ModalContext.java:464) at org.eclipse.jface.operation.ModalContext.run(ModalContext.java:372) at org.eclipse.jface.window.ApplicationWindow$1.run(ApplicationWindow.java:759) at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70) at org.eclipse.jface.window.ApplicationWindow.run(ApplicationWindow.java:756) at org.eclipse.ui.internal.WorkbenchWindow.run(WorkbenchWindow.java:2578) at org.eclipse.ui.internal.SaveableHelper.runProgressMonitorOperation(SaveableHelper.java:282) at org.eclipse.ui.internal.SaveableHelper.runProgressMonitorOperation(SaveableHelper.java:261) at org.eclipse.ui.internal.SaveableHelper.saveModels(SaveableHelper.java:204) at org.eclipse.ui.internal.SaveableHelper.savePart(SaveableHelper.java:144) at org.eclipse.ui.internal.EditorManager.savePart(EditorManager.java:1357) at org.eclipse.ui.internal.WorkbenchPage.savePart(WorkbenchPage.java:3328) at org.eclipse.ui.internal.WorkbenchPage.saveEditor(WorkbenchPage.java:3341) at org.eclipse.ui.internal.SaveAction.run(SaveAction.java:76) 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:4586) 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:7586) 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:1858) 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$5.run(Workbench.java:500) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332) at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:493) at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149) at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:113) at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:194) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:110) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:79) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:368) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:616) at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:559) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:514) at org.eclipse.equinox.launcher.Main.run(Main.java:1311) This causes file save to take tens of seconds.
>com.google.gdt.eclipse.core.TypeHierarchyCache$TypeHierarchyUpdater.typeHierarchyChanged(TypeHierarchyCache.java:41) is not from Eclipse. Please follow up with the GDT plug-in providers.
