Community
Participate
Working Groups
Build Identifier: M20110210-1200 I just used the plug-in editor to add extensions. Sometimes I get the error "org.eclipse.swt.SWTError: Item not removed" and then Eclipse tells me to shutdown Eclipse and restart it. I never had this problem under Windows XP on a 32Bit machine. Since some weeks I got a new machine with Windows 7 and 64Bit and since then I have the problem from time to time. What I did: I added a command extension with the plug-in editor and clicked in the Package Explorer. Then I got the exception. I have a 4 CPUs machine with 8GB RAM. I use the latest JDK (1.6.0_26). Here is my session data: java.vendor=Sun Microsystems Inc. BootLoader constants: OS=win32, ARCH=x86_64, WS=win32, NL=de_DE Framework arguments: -product org.eclipse.epp.package.rcp.product Command-line arguments: -os win32 -ws win32 -arch x86_64 -product org.eclipse.epp.package.rcp.product Here is the stack trace: org.eclipse.swt.SWTError: Item not removed at org.eclipse.swt.SWT.error(SWT.java:4109) at org.eclipse.swt.SWT.error(SWT.java:3998) at org.eclipse.swt.SWT.error(SWT.java:3969) at org.eclipse.swt.widgets.Widget.error(Widget.java:468) at org.eclipse.swt.widgets.CoolBar.destroyItem(CoolBar.java:347) at org.eclipse.swt.widgets.CoolItem.destroyWidget(CoolItem.java:202) at org.eclipse.swt.widgets.Widget.release(Widget.java:818) at org.eclipse.swt.widgets.Widget.dispose(Widget.java:446) at org.eclipse.jface.action.ToolBarContributionItem.updateSize(ToolBarContributionItem.java:639) at org.eclipse.jface.action.ToolBarContributionItem.update(ToolBarContributionItem.java:595) at org.eclipse.jface.action.CoolBarManager.update(CoolBarManager.java:958) at org.eclipse.ui.internal.WorkbenchWindow.updateActionBars(WorkbenchWindow.java:3186) at org.eclipse.ui.internal.WorkbenchWindow.updateActionSets(WorkbenchWindow.java:3265) at org.eclipse.ui.internal.WorkbenchPage$ActionSwitcher.updateActionSets(WorkbenchPage.java:537) at org.eclipse.ui.internal.WorkbenchPage$ActionSwitcher.updateActivePart(WorkbenchPage.java:370) at org.eclipse.ui.internal.WorkbenchPage.setActivePart(WorkbenchPage.java:3535) at org.eclipse.ui.internal.WorkbenchPage.requestActivation(WorkbenchPage.java:3077) at org.eclipse.ui.internal.PartPane.requestActivation(PartPane.java:279) at org.eclipse.ui.internal.EditorPane.requestActivation(EditorPane.java:98) at org.eclipse.ui.internal.PartPane.handleEvent(PartPane.java:237) at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1053) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1077) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1058) at org.eclipse.swt.widgets.Shell.setActiveControl(Shell.java:1424) at org.eclipse.swt.widgets.Shell.WM_MOUSEACTIVATE(Shell.java:2297) at org.eclipse.swt.widgets.Control.windowProc(Control.java:4205) at org.eclipse.swt.widgets.Canvas.windowProc(Canvas.java:341) at org.eclipse.swt.widgets.Decorations.windowProc(Decorations.java:1598) at org.eclipse.swt.widgets.Shell.windowProc(Shell.java:2038) at org.eclipse.swt.widgets.Display.windowProc(Display.java:4886) at org.eclipse.swt.internal.win32.OS.DefWindowProcW(Native Method) at org.eclipse.swt.internal.win32.OS.DefWindowProc(OS.java:2454) at org.eclipse.swt.widgets.Scrollable.callWindowProc(Scrollable.java:80) at org.eclipse.swt.widgets.Control.windowProc(Control.java:4253) at org.eclipse.swt.widgets.Display.windowProc(Display.java:4886) at org.eclipse.swt.internal.win32.OS.DefWindowProcW(Native Method) at org.eclipse.swt.internal.win32.OS.DefWindowProc(OS.java:2454) at org.eclipse.swt.widgets.Scrollable.callWindowProc(Scrollable.java:80) at org.eclipse.swt.widgets.Control.windowProc(Control.java:4253) at org.eclipse.swt.widgets.Display.windowProc(Display.java:4886) at org.eclipse.swt.internal.win32.OS.DefWindowProcW(Native Method) at org.eclipse.swt.internal.win32.OS.DefWindowProc(OS.java:2454) at org.eclipse.swt.widgets.Scrollable.callWindowProc(Scrollable.java:80) at org.eclipse.swt.widgets.Control.windowProc(Control.java:4253) at org.eclipse.swt.widgets.Display.windowProc(Display.java:4886) at org.eclipse.swt.internal.win32.OS.DefWindowProcW(Native Method) at org.eclipse.swt.internal.win32.OS.DefWindowProc(OS.java:2454) at org.eclipse.swt.widgets.Scrollable.callWindowProc(Scrollable.java:80) at org.eclipse.swt.widgets.Control.windowProc(Control.java:4253) at org.eclipse.swt.widgets.Display.windowProc(Display.java:4886) at org.eclipse.swt.internal.win32.OS.DefWindowProcW(Native Method) at org.eclipse.swt.internal.win32.OS.DefWindowProc(OS.java:2454) at org.eclipse.swt.widgets.Scrollable.callWindowProc(Scrollable.java:80) at org.eclipse.swt.widgets.Control.windowProc(Control.java:4253) at org.eclipse.swt.widgets.Display.windowProc(Display.java:4886) at org.eclipse.swt.internal.win32.OS.DefWindowProcW(Native Method) at org.eclipse.swt.internal.win32.OS.DefWindowProc(OS.java:2454) at org.eclipse.swt.widgets.Scrollable.callWindowProc(Scrollable.java:80) at org.eclipse.swt.widgets.Control.windowProc(Control.java:4253) at org.eclipse.swt.widgets.Display.windowProc(Display.java:4886) at org.eclipse.swt.internal.win32.OS.DefWindowProcW(Native Method) at org.eclipse.swt.internal.win32.OS.DefWindowProc(OS.java:2454) at org.eclipse.swt.widgets.Scrollable.callWindowProc(Scrollable.java:80) at org.eclipse.swt.widgets.Control.windowProc(Control.java:4253) at org.eclipse.swt.widgets.Display.windowProc(Display.java:4886) at org.eclipse.swt.internal.win32.OS.DefWindowProcW(Native Method) at org.eclipse.swt.internal.win32.OS.DefWindowProc(OS.java:2454) at org.eclipse.swt.widgets.Scrollable.callWindowProc(Scrollable.java:80) at org.eclipse.swt.widgets.Control.windowProc(Control.java:4253) at org.eclipse.swt.widgets.Display.windowProc(Display.java:4886) at org.eclipse.swt.internal.win32.OS.DefWindowProcW(Native Method) at org.eclipse.swt.internal.win32.OS.DefWindowProc(OS.java:2454) at org.eclipse.swt.widgets.Scrollable.callWindowProc(Scrollable.java:80) at org.eclipse.swt.widgets.Control.windowProc(Control.java:4253) at org.eclipse.swt.widgets.Display.windowProc(Display.java:4886) at org.eclipse.swt.internal.win32.OS.DefWindowProcW(Native Method) at org.eclipse.swt.internal.win32.OS.DefWindowProc(OS.java:2454) at org.eclipse.swt.widgets.Scrollable.callWindowProc(Scrollable.java:80) at org.eclipse.swt.widgets.Control.windowProc(Control.java:4253) at org.eclipse.swt.widgets.Display.windowProc(Display.java:4886) at org.eclipse.swt.internal.win32.OS.DefWindowProcW(Native Method) at org.eclipse.swt.internal.win32.OS.DefWindowProc(OS.java:2454) at org.eclipse.swt.widgets.Scrollable.callWindowProc(Scrollable.java:80) at org.eclipse.swt.widgets.Control.windowProc(Control.java:4253) at org.eclipse.swt.widgets.Display.windowProc(Display.java:4886) at org.eclipse.swt.internal.win32.OS.DefWindowProcW(Native Method) at org.eclipse.swt.internal.win32.OS.DefWindowProc(OS.java:2454) at org.eclipse.swt.widgets.Scrollable.callWindowProc(Scrollable.java:80) at org.eclipse.swt.widgets.Control.windowProc(Control.java:4253) at org.eclipse.swt.widgets.Display.windowProc(Display.java:4886) at org.eclipse.swt.internal.win32.OS.DefWindowProcW(Native Method) at org.eclipse.swt.internal.win32.OS.DefWindowProc(OS.java:2454) at org.eclipse.swt.widgets.Scrollable.callWindowProc(Scrollable.java:80) at org.eclipse.swt.widgets.Control.windowProc(Control.java:4253) at org.eclipse.swt.widgets.Display.windowProc(Display.java:4886) at org.eclipse.swt.internal.win32.OS.DefWindowProcW(Native Method) at org.eclipse.swt.internal.win32.OS.DefWindowProc(OS.java:2454) at org.eclipse.swt.widgets.Scrollable.callWindowProc(Scrollable.java:80) at org.eclipse.swt.widgets.Control.windowProc(Control.java:4253) at org.eclipse.swt.widgets.Canvas.windowProc(Canvas.java:341) at org.eclipse.swt.widgets.Display.windowProc(Display.java:4886) at org.eclipse.swt.internal.win32.OS.DefWindowProcW(Native Method) at org.eclipse.swt.internal.win32.OS.DefWindowProc(OS.java:2454) at org.eclipse.swt.widgets.Scrollable.callWindowProc(Scrollable.java:80) at org.eclipse.swt.widgets.Control.windowProc(Control.java:4253) at org.eclipse.swt.widgets.Display.windowProc(Display.java:4886) at org.eclipse.swt.internal.win32.OS.CallWindowProcW(Native Method) at org.eclipse.swt.internal.win32.OS.CallWindowProc(OS.java:2362) at org.eclipse.swt.widgets.Button.callWindowProc(Button.java:344) at org.eclipse.swt.widgets.Control.windowProc(Control.java:4253) at org.eclipse.swt.widgets.Display.windowProc(Display.java:4886) 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(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:620) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:575) at org.eclipse.equinox.launcher.Main.run(Main.java:1408) at org.eclipse.equinox.launcher.Main.main(Main.java:1384) Reproducible: Sometimes
I restarted my Eclipse and clicked in the Package explorer and then in the Plug-In-Editor and it crashed again. It crashes now always!
The "Extensions" tab of the Plug-in editor crashes always. Steps to reproduce (on my machine): 1. Open a plugin.xml file with the Plug-In editor. 2. Select the "Extensions" tab 3. Open the Package Explorer 4. click in the Package Explorer 5. click in the "Extensions" tab of the Plug-Ins editor 6. crash!
I checked the same constellation on a colleague's machine. His Eclipse does not crash at the step I described in my last comment. The only difference is the JDK. He uses the 1.6.0_18. I use the 1.6.0_26.
Can you try with a clean workspace and Eclipse 3.7 (http://eclipse.org/downloads/)?
1. I downloaded Eclipse 3.7 RCP and unpacked it. 2. I started it with a fresh workspace. 3. I created a plugin project with the "Hello, World Command" template. 4. I switched to the Extensions tab 5. I clicked in the Package Explorer 6. I clicked in the Extensions tab 7. crash!
Thank you for verifying this. I will have to find similar hardware to investigate it. As it is not blocking a workflow, I am reducing the severity.
It also crashes when I restart Eclipse and click immediatelly after initialization of the workbench in the Extensions tab of the still open Plug-Ins editor. I have to change the tab to e.g. Extension Points tab and then switch back to the Extensions tab to continue my work with extensions. For me it is a real blocker to my workflow as I have to think all the time where I am allowed to click to not restart Eclipse again and again.
I found the problem: I used the extra program "MultiMon TaskBar 2.1" to extend my task bar of Windows to 2 displays. If I stop this program than I do not have the SWT error anymore. I close this bug.
I have to mention this: It is a problem of Windows 7 when you use more than 1 display (I use 2 displays) and you extend the task bar to all of the displays. Eclipse crashes when you use * MultiMon Taskbar 2.1 * NVIDIA nView Desktop Manager 135.60 So I suppose it is a Windows 7 driver problem. Somewhere the resources are not handled correctly when the task bar is bigger.
Thank you for updating us with your finidngs. I'm moving this bug to SWT so they know about the issue with MultiMon / NVidia manager.
There is also a problem with the editor for run configurations for Eclipse applications. On the tab "Plug-ins" if you select "features selected below" you will see a corrupt list of features if you enable on Windows the 2 displays. I think it is a problem with the table viewer and multiple displays on Windows 7. The resources are not handled correctly somewhere in the table control.
