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error while deleting [message #1123343] Wed, 02 October 2013 09:16 Go to next message
Phil H is currently offline Phil H
Messages: 221
Registered: November 2012
Senior Member
When deleting elements from my model, I get the following error msg. Is this a known error?

!ENTRY org.eclipse.ui 4 0 2013-10-02 15:13:51.055
!MESSAGE Unhandled event loop exception
!STACK 0
org.eclipse.swt.SWTException: Failed to execute runnable (java.lang.NullPointerException)
	at org.eclipse.swt.SWT.error(SWT.java:4397)
	at org.eclipse.swt.SWT.error(SWT.java:4312)
	at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:138)
	at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:4145)
	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3762)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$9.run(PartRenderingEngine.java:1113)
	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:997)
	at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:138)
	at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:610)
	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
	at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:567)
	at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:150)
	at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:124)
	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:354)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:181)
	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:636)
	at org.eclipse.equinox.launcher.Main.basicRun(Main.java:591)
	at org.eclipse.equinox.launcher.Main.run(Main.java:1450)
	at org.eclipse.equinox.launcher.Main.main(Main.java:1426)
Caused by: java.lang.NullPointerException
	at org.eclipse.ui.views.properties.tabbed.TabbedPropertySheetPage.refresh(TabbedPropertySheetPage.java:761)
	at pld.presentation.PldEditor$5$1.run(PldEditor.java:814)
	at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:35)
	at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:135)
	... 24 more

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Re: error while deleting [message #1123395 is a reply to message #1123343] Wed, 02 October 2013 10:15 Go to previous messageGo to next message
Ed Merks is currently offline Ed Merks
Messages: 25218
Registered: July 2009
Senior Member
Phil,

What's the code in
pld.presentation.PldEditor$5$1.run(PldEditor.java:814) doing?


On 02/10/2013 3:16 PM, Phil H wrote:
> When deleting elements from my model, I get the following error msg.
> Is this a known error?
>
>
> !ENTRY org.eclipse.ui 4 0 2013-10-02 15:13:51.055
> !MESSAGE Unhandled event loop exception
> !STACK 0
> org.eclipse.swt.SWTException: Failed to execute runnable
> (java.lang.NullPointerException)
> at org.eclipse.swt.SWT.error(SWT.java:4397)
> at org.eclipse.swt.SWT.error(SWT.java:4312)
> at
> org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:138)
> at
> org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:4145)
> at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3762)
> at
> org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$9.run(PartRenderingEngine.java:1113)
> at
> org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
> at
> org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:997)
> at
> org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:138)
> at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:610)
> at
> org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
> at
> org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:567)
> at
> org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:150)
> at
> org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:124)
> 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:354)
> at
> org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:181)
> 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:636)
> at org.eclipse.equinox.launcher.Main.basicRun(Main.java:591)
> at org.eclipse.equinox.launcher.Main.run(Main.java:1450)
> at org.eclipse.equinox.launcher.Main.main(Main.java:1426)
> Caused by: java.lang.NullPointerException
> at
> org.eclipse.ui.views.properties.tabbed.TabbedPropertySheetPage.refresh(TabbedPropertySheetPage.java:761)
> at pld.presentation.PldEditor$5$1.run(PldEditor.java:814)
> at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:35)
> at
> org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:135)
> ... 24 more
>

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Re: error while deleting [message #1127324 is a reply to message #1123395] Sun, 06 October 2013 10:33 Go to previous messageGo to next message
Phil H is currently offline Phil H
Messages: 221
Registered: November 2012
Senior Member
Hi Ed,

you mean Codeline 814?

	if (propertySheetPage != null && !propertySheetPage.getControl().isDisposed()) {
814		propertySheetPage.refresh();
	}

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Re: error while deleting [message #1127943 is a reply to message #1127324] Mon, 07 October 2013 03:00 Go to previous message
Ed Merks is currently offline Ed Merks
Messages: 25218
Registered: July 2009
Senior Member
Phil,

So so that's well guarded against null and disposed widgets and looks
like what EMF would generated but the generated editor doesn't used a
tabbed property sheet, so you'll need to look at what's going on in that
code.

On 06/10/2013 4:33 PM, Phil H wrote:
> Hi Ed,
>
> you mean Codeline 814?
>
>
> if (propertySheetPage != null &&
> !propertySheetPage.getControl().isDisposed()) {
> 814 propertySheetPage.refresh();
> }
>

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