| Re: Exception when unlocking windows' screensaver [message #662183] |
Tue, 29 March 2011 12:01  |
Eclipse User |
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On 29/03/11 8:11 PM, Marco Maccaferri wrote:
> Hi.
>
> One of our users sometimes gets a Graphic is disposed exception when he
> unlocks the screensaver while our RCP application is running. To be
> clear, the user leaves the PC on with our application running at night,
> the screensaver starts and when he returns back the next day and unlocks
> the screensaver the error pops out. The application then shows some
> other weird behaviour but I think it is all related to that graphic
> disposed error.
>
> This is the stack trace:
>
> org.eclipse.swt.SWTException: Graphic is disposed
> at org.eclipse.swt.SWT.error(SWT.java:3884)
> at org.eclipse.swt.SWT.error(SWT.java:3799)
> at org.eclipse.swt.SWT.error(SWT.java:3770)
> at org.eclipse.swt.graphics.Image.getBounds(Image.java:1154)
> at org.eclipse.swt.custom.CTabItem.drawSelected(CTabItem.java:3 77)
> at org.eclipse.swt.custom.CTabItem.onPaint(CTabItem.java:807)
> at org.eclipse.swt.custom.CTabFolder.drawTabArea(CTabFolder.jav a:1147)
> at org.eclipse.swt.custom.CTabFolder.onPaint(CTabFolder.java:23 06)
> at org.eclipse.swt.custom.CTabFolder$1.handleEvent(CTabFolder.j ava:328)
> at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java :84)
> at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1003)
> at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1027)
> at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1012)
> at org.eclipse.swt.widgets.Composite.WM_PAINT(Composite.java:14 25)
> at org.eclipse.swt.widgets.Control.windowProc(Control.java:4001 )
> at org.eclipse.swt.widgets.Display.windowProc(Display.java:4602 )
> at org.eclipse.swt.internal.win32.OS.DispatchMessageW(Native Method)
> at org.eclipse.swt.internal.win32.OS.DispatchMessage(OS.java:24 10)
> at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java :3471)
> at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.jav a:2405)
> at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2369)
> at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:22 21)
> 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(Work bench.java:493)
> at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.j ava:149)
> at com.rtrms.amoeba.internal.Application.run(Application.java:2 5)
> 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.internal.app.EclipseAppContainer.callMet hodWithException(EclipseAppContainer.java:574)
>
> at
> org.eclipse.equinox.internal.app.EclipseAppHandle.run(Eclips eAppHandle.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(EclipseS tarter.java:368)
>
> at
> org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseS tarter.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: 559)
> at org.eclipse.equinox.launcher.Main.basicRun(Main.java:514)
> at org.eclipse.equinox.launcher.Main.run(Main.java:1311)
> at org.eclipse.equinox.launcher.Main.main(Main.java:1287)
>
> The exception is caused by a WM_PAINT event, I guess this is a general
> redraw caused by the screensaver. I can't figure out if it is caused by
> something the application is doing or if it is a framework bug. The
> application does some background tasks over night involving also closing
> and reopening views automatically but it doesn't dispose anything on its
> own.
>
> Has anyone encountered something similar ?
>
> Regards,
> Marco.
This belongs to swt forum. CC-ing...
--
- Prakash
Platform UI Team, IBM
www.eclipse-tips.com
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