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Build Identifier: M20100909-0800 Stack Trace: !ENTRY org.eclipse.ui 4 0 2010-11-09 12:40:09.886 !MESSAGE Unhandled event loop exception !STACK 0 java.lang.NullPointerException at org.eclipse.ui.internal.FastViewPane.hideView(FastViewPane.java:582) at org.eclipse.ui.internal.Perspective.hideFastView(Perspective.java:571) at org.eclipse.ui.internal.Perspective.setActiveFastView(Perspective.java:1933) at org.eclipse.ui.internal.Perspective.setActiveFastView(Perspective.java:1952) at org.eclipse.ui.internal.Perspective.bringToTop(Perspective.java:225) at org.eclipse.ui.internal.WorkbenchPage.internalBringToTop(WorkbenchPage.java:799) at org.eclipse.ui.internal.WorkbenchPage.internalActivate(WorkbenchPage.java:616) at org.eclipse.ui.internal.WorkbenchPage.activate(WorkbenchPage.java:589) at org.eclipse.ui.internal.WorkbenchPage.busyShowView(WorkbenchPage.java:1096) at org.eclipse.ui.internal.WorkbenchPage.busyShowView(WorkbenchPage.java:1066) at org.eclipse.ui.internal.WorkbenchPage$20.run(WorkbenchPage.java:3822) at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70) at org.eclipse.ui.internal.WorkbenchPage.showView(WorkbenchPage.java:3819) at org.eclipse.ui.internal.WorkbenchPage.showView(WorkbenchPage.java:3795) at org.eclipse.ui.handlers.ShowViewHandler.openView(ShowViewHandler.java:162) at org.eclipse.ui.handlers.ShowViewHandler.execute(ShowViewHandler.java:77) at org.eclipse.ui.internal.handlers.HandlerProxy.execute(HandlerProxy.java:293) 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:468) at org.eclipse.ui.internal.keys.WorkbenchKeyboard.press(WorkbenchKeyboard.java:786) at org.eclipse.ui.internal.keys.WorkbenchKeyboard.processKeyEvent(WorkbenchKeyboard.java:885) at org.eclipse.ui.internal.keys.WorkbenchKeyboard.filterKeySequenceBindings(WorkbenchKeyboard.java:567) at org.eclipse.ui.internal.keys.WorkbenchKeyboard.access$3(WorkbenchKeyboard.java:508) at org.eclipse.ui.internal.keys.WorkbenchKeyboard$KeyDownFilter.handleEvent(WorkbenchKeyboard.java:123) at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84) at org.eclipse.swt.widgets.Display.filterEvent(Display.java:1253) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1052) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1077) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1062) at org.eclipse.swt.widgets.Widget.sendKeyEvent(Widget.java:1103) at org.eclipse.swt.widgets.Widget.sendKeyEvent(Widget.java:1099) at org.eclipse.swt.widgets.Widget.wmChar(Widget.java:1508) at org.eclipse.swt.widgets.Control.WM_CHAR(Control.java:4268) at org.eclipse.swt.widgets.Control.windowProc(Control.java:4160) at org.eclipse.swt.widgets.Display.windowProc(Display.java:4886) at org.eclipse.swt.internal.win32.OS.DispatchMessageW(Native Method) at org.eclipse.swt.internal.win32.OS.DispatchMessage(OS.java:2459) at org.eclipse.swt.ole.win32.OleFrame.getMsgProc(OleFrame.java:276) at org.eclipse.swt.internal.win32.OS.PeekMessageW(Native Method) at org.eclipse.swt.internal.win32.OS.PeekMessage(OS.java:3024) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3652) at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2640) at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2604) at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2438) at org.eclipse.ui.internal.Workbench$7.run(Workbench.java:671) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332) at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:664) at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149) at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:115) at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196) 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:369) 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:619) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:574) at org.eclipse.equinox.launcher.Main.run(Main.java:1407) at org.eclipse.equinox.launcher.Main.main(Main.java:1383) The problem is, that FastViewPane#hideView is called recursivly: Thread [main] (Suspended (breakpoint at line 577 in org.eclipse.ui.internal.FastViewPane)) org.eclipse.ui.internal.FastViewPane.hideView() line: 577 org.eclipse.ui.internal.Perspective.hideFastView(org.eclipse.ui.IViewReference, int) line: 571 org.eclipse.ui.internal.Perspective.setActiveFastView(org.eclipse.ui.IViewReference, int) line: 1933 org.eclipse.ui.internal.Perspective.setActiveFastView(org.eclipse.ui.IViewReference) line: 1952 org.eclipse.ui.internal.Perspective.partActivated(org.eclipse.ui.IWorkbenchPart) line: 1150 org.eclipse.ui.internal.WorkbenchPage.setActivePart(org.eclipse.ui.IWorkbenchPart, boolean) line: 3517 org.eclipse.ui.internal.WorkbenchPage.requestActivation(org.eclipse.ui.IWorkbenchPart) line: 3077 org.eclipse.ui.internal.ViewPane(org.eclipse.ui.internal.PartPane).requestActivation() line: 279 org.eclipse.ui.internal.ViewPane(org.eclipse.ui.internal.PartPane).handleEvent(org.eclipse.swt.widgets.Event) line: 237 org.eclipse.swt.widgets.EventTable.sendEvent(org.eclipse.swt.widgets.Event) line: 84 org.eclipse.swt.widgets.ToolBar(org.eclipse.swt.widgets.Widget).sendEvent(org.eclipse.swt.widgets.Event) line: 1053 org.eclipse.swt.widgets.ToolBar(org.eclipse.swt.widgets.Widget).sendEvent(int, org.eclipse.swt.widgets.Event, boolean) line: 1077 org.eclipse.swt.widgets.ToolBar(org.eclipse.swt.widgets.Widget).sendEvent(int) line: 1058 org.eclipse.swt.widgets.Shell.setActiveControl(org.eclipse.swt.widgets.Control) line: 1424 org.eclipse.swt.widgets.ToolBar(org.eclipse.swt.widgets.Control).sendFocusEvent(int) line: 2632 org.eclipse.swt.widgets.ToolBar(org.eclipse.swt.widgets.Widget).wmSetFocus(long, long, long) line: 2402 org.eclipse.swt.widgets.ToolBar(org.eclipse.swt.widgets.Control).WM_SETFOCUS(long, long) line: 4792 org.eclipse.swt.widgets.ToolBar.WM_SETFOCUS(long, long) line: 1362 org.eclipse.swt.widgets.ToolBar(org.eclipse.swt.widgets.Control).windowProc(long, int, long, long) line: 4229 org.eclipse.swt.widgets.Display.windowProc(long, long, long, long) line: 4873 org.eclipse.swt.internal.win32.OS.SetFocus(long) line: not available [native method] org.eclipse.swt.widgets.ToolBar(org.eclipse.swt.widgets.Control).forceFocus() line: 995 org.eclipse.swt.widgets.ToolBar(org.eclipse.swt.widgets.Control).setFixedFocus() line: 2980 org.eclipse.swt.widgets.ToolBar(org.eclipse.swt.widgets.Composite).setFixedFocus() line: 1039 org.eclipse.swt.widgets.Composite.setFixedFocus() line: 1037 org.eclipse.swt.custom.CTabFolder(org.eclipse.swt.widgets.Control).fixFocus(org.eclipse.swt.widgets.Control) line: 953 org.eclipse.swt.custom.CTabFolder(org.eclipse.swt.widgets.Control).setVisible(boolean) line: 3407 org.eclipse.ui.internal.presentations.defaultpresentation.DefaultTabFolder(org.eclipse.ui.internal.presentations.util.AbstractTabFolder).setVisible(boolean) line: 391 org.eclipse.ui.internal.presentations.defaultpresentation.DefaultTabFolder.setVisible(boolean) line: 534 org.eclipse.ui.internal.presentations.util.PresentablePartFolder.setVisible(boolean) line: 396 org.eclipse.ui.internal.presentations.util.TabbedStackPresentation.setVisible(boolean) line: 384 org.eclipse.ui.internal.FastViewPane.hideView() line: 577 org.eclipse.ui.internal.Perspective.hideFastView(org.eclipse.ui.IViewReference, int) line: 571 org.eclipse.ui.internal.Perspective.setActiveFastView(org.eclipse.ui.IViewReference, int) line: 1933 org.eclipse.ui.internal.Perspective.setActiveFastView(org.eclipse.ui.IViewReference) line: 1952 org.eclipse.ui.internal.Perspective.bringToTop(org.eclipse.ui.IViewReference) line: 225 org.eclipse.ui.internal.WorkbenchPage.internalBringToTop(org.eclipse.ui.IWorkbenchPartReference) line: 799 org.eclipse.ui.internal.WorkbenchPage.internalActivate(org.eclipse.ui.IWorkbenchPart, boolean) line: 616 org.eclipse.ui.internal.WorkbenchPage.activate(org.eclipse.ui.IWorkbenchPart) line: 589 org.eclipse.ui.internal.WorkbenchPage.busyShowView(org.eclipse.ui.IViewPart, int) line: 1096 org.eclipse.ui.internal.WorkbenchPage.busyShowView(java.lang.String, java.lang.String, int) line: 1066 org.eclipse.ui.internal.WorkbenchPage$20.run() line: 3822 org.eclipse.swt.custom.BusyIndicator.showWhile(org.eclipse.swt.widgets.Display, java.lang.Runnable) line: 70 org.eclipse.ui.internal.WorkbenchPage.showView(java.lang.String, java.lang.String, int) line: 3819 org.eclipse.ui.internal.WorkbenchPage.showView(java.lang.String) line: 3795 org.eclipse.ui.handlers.ShowViewHandler.openView(java.lang.String, org.eclipse.ui.IWorkbenchWindow) line: 162 org.eclipse.ui.handlers.ShowViewHandler.execute(org.eclipse.core.commands.ExecutionEvent) line: 77 org.eclipse.ui.internal.handlers.HandlerProxy.execute(org.eclipse.core.commands.ExecutionEvent) line: 293 org.eclipse.core.commands.Command.executeWithChecks(org.eclipse.core.commands.ExecutionEvent) line: 476 org.eclipse.core.commands.ParameterizedCommand.executeWithChecks(java.lang.Object, java.lang.Object) line: 508 org.eclipse.ui.internal.handlers.HandlerService.executeCommand(org.eclipse.core.commands.ParameterizedCommand, org.eclipse.swt.widgets.Event) line: 169 org.eclipse.ui.internal.keys.WorkbenchKeyboard.executeCommand(org.eclipse.jface.bindings.Binding, org.eclipse.swt.widgets.Event) line: 468 org.eclipse.ui.internal.keys.WorkbenchKeyboard.press(java.util.List, org.eclipse.swt.widgets.Event) line: 786 org.eclipse.ui.internal.keys.WorkbenchKeyboard.processKeyEvent(java.util.List, org.eclipse.swt.widgets.Event) line: 885 org.eclipse.ui.internal.keys.WorkbenchKeyboard.filterKeySequenceBindings(org.eclipse.swt.widgets.Event) line: 567 org.eclipse.ui.internal.keys.WorkbenchKeyboard.access$3(org.eclipse.ui.internal.keys.WorkbenchKeyboard, org.eclipse.swt.widgets.Event) line: 508 org.eclipse.ui.internal.keys.WorkbenchKeyboard$KeyDownFilter.handleEvent(org.eclipse.swt.widgets.Event) line: 123 org.eclipse.swt.widgets.EventTable.sendEvent(org.eclipse.swt.widgets.Event) line: 84 org.eclipse.swt.widgets.Display.filterEvent(org.eclipse.swt.widgets.Event) line: 1253 org.eclipse.swt.browser.WebSite(org.eclipse.swt.widgets.Widget).sendEvent(org.eclipse.swt.widgets.Event) line: 1052 org.eclipse.swt.browser.WebSite(org.eclipse.swt.widgets.Widget).sendEvent(int, org.eclipse.swt.widgets.Event, boolean) line: 1077 org.eclipse.swt.browser.WebSite(org.eclipse.swt.widgets.Widget).sendEvent(int, org.eclipse.swt.widgets.Event) line: 1062 org.eclipse.swt.browser.WebSite(org.eclipse.swt.widgets.Widget).sendKeyEvent(int, int, long, long, org.eclipse.swt.widgets.Event) line: 1103 org.eclipse.swt.browser.WebSite(org.eclipse.swt.widgets.Widget).sendKeyEvent(int, int, long, long) line: 1099 org.eclipse.swt.browser.WebSite(org.eclipse.swt.widgets.Widget).wmChar(long, long, long) line: 1508 org.eclipse.swt.browser.WebSite(org.eclipse.swt.widgets.Control).WM_CHAR(long, long) line: 4268 org.eclipse.swt.browser.WebSite(org.eclipse.swt.widgets.Control).windowProc(long, int, long, long) line: 4160 org.eclipse.swt.widgets.Display.windowProc(long, long, long, long) line: 4886 org.eclipse.swt.internal.win32.OS.DispatchMessageW(org.eclipse.swt.internal.win32.MSG) line: not available [native method] org.eclipse.swt.internal.win32.OS.DispatchMessage(org.eclipse.swt.internal.win32.MSG) line: 2459 org.eclipse.swt.ole.win32.OleFrame.getMsgProc(long, long, long) line: 276 org.eclipse.swt.internal.win32.OS.PeekMessageW(org.eclipse.swt.internal.win32.MSG, long, int, int, int) line: not available [native method] org.eclipse.swt.internal.win32.OS.PeekMessage(org.eclipse.swt.internal.win32.MSG, long, int, int, int) line: 3024 org.eclipse.swt.widgets.Display.readAndDispatch() line: 3652 org.eclipse.ui.internal.Workbench.runEventLoop(org.eclipse.jface.window.Window$IExceptionHandler, org.eclipse.swt.widgets.Display) line: 2640 org.eclipse.ui.internal.Workbench.runUI() line: 2604 org.eclipse.ui.internal.Workbench.access$4(org.eclipse.ui.internal.Workbench) line: 2438 org.eclipse.ui.internal.Workbench$7.run() line: 671 org.eclipse.core.databinding.observable.Realm.runWithDefault(org.eclipse.core.databinding.observable.Realm, java.lang.Runnable) line: 332 org.eclipse.ui.internal.Workbench.createAndRunWorkbench(org.eclipse.swt.widgets.Display, org.eclipse.ui.application.WorkbenchAdvisor) line: 664 org.eclipse.ui.PlatformUI.createAndRunWorkbench(org.eclipse.swt.widgets.Display, org.eclipse.ui.application.WorkbenchAdvisor) line: 149 org.eclipse.ui.internal.ide.application.IDEApplication.start(org.eclipse.equinox.app.IApplicationContext) line: 115 org.eclipse.equinox.internal.app.EclipseAppHandle.run(java.lang.Object) line: 196 org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(java.lang.Object) line: 110 org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(java.lang.Object) line: 79 org.eclipse.core.runtime.adaptor.EclipseStarter.run(java.lang.Object) line: 369 org.eclipse.core.runtime.adaptor.EclipseStarter.run(java.lang.String[], java.lang.Runnable) line: 179 sun.reflect.NativeMethodAccessorImpl.invoke0(java.lang.reflect.Method, java.lang.Object, java.lang.Object[]) line: not available [native method] sun.reflect.NativeMethodAccessorImpl.invoke(java.lang.Object, java.lang.Object[]) line: 39 sun.reflect.DelegatingMethodAccessorImpl.invoke(java.lang.Object, java.lang.Object[]) line: 25 java.lang.reflect.Method.invoke(java.lang.Object, java.lang.Object...) line: 597 org.eclipse.equinox.launcher.Main.invokeFramework(java.lang.String[], java.net.URL[]) line: 619 org.eclipse.equinox.launcher.Main.basicRun(java.lang.String[]) line: 574 org.eclipse.equinox.launcher.Main.run(java.lang.String[]) line: 1407 org.eclipse.equinox.launcher.Main.main(java.lang.String[]) line: 1383 The recursive call occurs only in special situations, e.g. when the #fixFocus is enabled. Reproducible: Always Steps to Reproduce: I could reprodue it on Eclipse 3.6.1 Win64: 1. Open Internal Browser View and the Console View as FastView 2. Open a web page in the browser 3. Switch to the console view using keyboard shortcut (Shift+Alt+Q, C) 4. Go back to the browser view and repeat 3.
Beside the special case, perhaps you want to make FastViewPane#hideView simply resistant to recusive calls.
This has happened before (see bug 301594) though the cause seems to be different this time.
>1. Open Internal Browser View What's the "Internal Browser View"?
Sorry, the correct name of the view is "Internal Web Browser"
(In reply to comment #4) > Sorry, the correct name of the view is "Internal Web Browser" There must be more steps than given in comment 0 as I'm unable to reproduce the problem. Can you attach a screenshot? >4. Go back to the browser view and repeat 3. How exactly do you do that?
(In reply to comment #5) > >4. Go back to the browser view and repeat 3. > How exactly do you do that? Left mouse click on the icon of the view.
Created attachment 182802 [details] Screenshot (before keyboard shortcut)
Note that I could reproduce it only with the 64-bit version, not the 32-bit version.
I cannot reproduce this either ... I'll leave this for Paul to close.
Markus, can you try the steps on your 64bit machine?
Wow, nasty bug! I can consistently reproduce with eclipse-SDK-3.6.1-win32-x86_64 and jdk6_22_x64. I cannot reproduce with the same steps and same machine with the 32-bit build.
I've debugged this a bit: The difference is that in 64-bit, the call to "display.getFocusControl ()" in CTabFolder(Control).setVisible(boolean) line: 3393 returns a ViewForm, while in 32-bit (HEAD), the control is the Shell. => Consequence is that the CTabFolder sets the focus to itself again, etc. The reason for the difference can be seen in ViewPane(LayoutPart).setVisible(boolean) line: 276 , where the effects of "ctrl.getShell().forceFocus();" are not the same on both platforms. In 32-bit, the Shell really takes focus, which can be seen by calling "ctrl.getDisplay().getFocusControl()" right after the forceFocus(). In 64-bit, the same expression still returns the WebSite control from the browser. Moving to SWT. Looks like a bug in the Browser widget implementation.
I had a strange gut feeling about this, so also downloaded the 64-bit version of I20101109-0800 and tried it there => no NPE any more. Closing for now. Please reopen if you can still reproduce in a recent 3.7 build.
