Description Ivar Refsdal 2011-09-25 08:58:05 EDT

Build Identifier: 

Full stacktrace:

!ENTRY org.eclipse.ui 4 0 2011-09-25 14:53:04.339
!MESSAGE Unhandled event loop exception
!STACK 0
java.lang.IllegalArgumentException: Argument not valid
	at org.eclipse.swt.SWT.error(SWT.java:4064)
	at org.eclipse.swt.SWT.error(SWT.java:3998)
	at org.eclipse.swt.SWT.error(SWT.java:3969)
	at org.eclipse.swt.dnd.DND.error(DND.java:281)
	at org.eclipse.swt.dnd.DND.error(DND.java:227)
	at org.eclipse.swt.dnd.Clipboard.setContents(Clipboard.java:448)
	at org.eclipse.swt.dnd.Clipboard.setContents(Clipboard.java:379)
	at org.eclipse.graphiti.ui.internal.util.clipboard.ModelClipboard.setNativeContentObjects(ModelClipboard.java:488)
	at org.eclipse.graphiti.ui.internal.util.clipboard.ModelClipboard.setContent(ModelClipboard.java:107)
	at org.eclipse.graphiti.ui.features.AbstractCopyFeature.putToClipboard(AbstractCopyFeature.java:84)
	at no.uio.ivarref.prediqt.copyandpaste.PrediqtCopyPNodeFeature.copy(PrediqtCopyPNodeFeature.java:53)
	at org.eclipse.graphiti.ui.internal.action.CopyAction.run(CopyAction.java:80)
	at org.eclipse.jface.action.Action.runWithEvent(Action.java:498)
	at org.eclipse.jface.action.ActionContributionItem.handleWidgetSelection(ActionContributionItem.java:584)
	at org.eclipse.jface.action.ActionContributionItem.access$2(ActionContributionItem.java:501)
	at org.eclipse.jface.action.ActionContributionItem$5.handleEvent(ActionContributionItem.java:411)
	at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1258)
	at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3540)
	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3161)
	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: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: Always

Steps to Reproduce:
1. Modify the copy feature to the following:
@Override
	public void copy(ICopyContext context) {
		// get the business-objects for all pictogram-elements

        PictogramElement[] pes = context.getPictogramElements();
        Collection<EObject> bos = new ArrayList<EObject>();
        for (int i = 0; i < pes.length; i++) {
            PictogramElement pe = pes[i];
            if (getBusinessObjectForPictogramElement(pe) instanceof EObject) {
				EObject eObject = (EObject) getBusinessObjectForPictogramElement(pe);
				bos.add(EcoreUtil.copy(eObject)); // EcoreUtil.copy causes the exception later on.
            }
        }

        // put all business objects to the clipboard
        putToClipboard(bos.toArray()); // exception thrown here.
	}

2. Run the application.
3. Copy a node.

Hackish-solution:
Remove the EcoreUtil.copy from the copy feature.
Let the paste feature use EcoreUtil.copy.
This works as one would expected.

It would also be good if this was mentioned in the documentation.