Description Ram Venkataswamy 2010-08-26 20:06:13 EDT

Build Identifier: M20100818-0800

Deleting an entity fails

Reproducible: Always

Steps to Reproduce:
- open a JPA project with entities

- open JPA diagram editor and show all entities

- right click on an entity > Delete

Click Yes, to confirm

Nothing happens, following exception is recorded in log file:

java.lang.IllegalStateException: Cannot modify resource set without a write transaction
	at org.eclipse.emf.transaction.impl.TransactionChangeRecorder.assertWriting(TransactionChangeRecorder.java:348)
	at org.eclipse.emf.transaction.impl.TransactionChangeRecorder.appendNotification(TransactionChangeRecorder.java:302)
	at org.eclipse.emf.transaction.impl.TransactionChangeRecorder.processObjectNotification(TransactionChangeRecorder.java:284)
	at org.eclipse.emf.transaction.impl.TransactionChangeRecorder.notifyChanged(TransactionChangeRecorder.java:240)
	at org.eclipse.emf.common.notify.impl.BasicNotifierImpl.eNotify(BasicNotifierImpl.java:380)
	at org.eclipse.emf.common.notify.impl.NotificationImpl.dispatch(NotificationImpl.java:1033)
	at org.eclipse.emf.common.notify.impl.NotificationImpl.dispatch(NotificationImpl.java:1038)
	at org.eclipse.emf.common.notify.impl.NotifyingListImpl.remove(NotifyingListImpl.java:724)
	at org.eclipse.emf.common.util.AbstractEList.remove(AbstractEList.java:466)
	at org.eclipse.emf.ecore.util.EcoreUtil.remove(EcoreUtil.java:3072)
	at org.eclipse.emf.ecore.util.EcoreUtil.delete(EcoreUtil.java:3227)
	at org.eclipse.graphiti.features.impl.DefaultRemoveFeature.removeAllConnections(DefaultRemoveFeature.java:95)
	at org.eclipse.graphiti.features.impl.DefaultRemoveFeature.remove(DefaultRemoveFeature.java:65)
	at org.eclipse.graphiti.ui.features.DefaultDeleteFeature.delete(DefaultDeleteFeature.java:74)
	at org.eclipse.jpt.ui.diagrameditor.feature.DeleteJPAEntityFeature.delete(DeleteJPAEntityFeature.java:41)
	at org.eclipse.graphiti.ui.features.DefaultDeleteFeature.execute(DefaultDeleteFeature.java:130)
	at org.eclipse.graphiti.internal.command.GenericFeatureCommandWithContext.execute(GenericFeatureCommandWithContext.java:64)
	at org.eclipse.graphiti.internal.command.CommandContainer.execute(CommandContainer.java:81)
	at org.eclipse.graphiti.ui.internal.command.GefCommandWrapper.execute(GefCommandWrapper.java:54)
	at org.eclipse.gef.commands.CommandStack.execute(CommandStack.java:197)
	at org.eclipse.graphiti.ui.internal.action.AbstractPreDefinedAction.executeOnCommandStack(AbstractPreDefinedAction.java:75)
	at org.eclipse.graphiti.ui.internal.action.AbstractPreDefinedAction.genericRun(AbstractPreDefinedAction.java:93)
	at org.eclipse.graphiti.ui.internal.action.DeleteAction.run(DeleteAction.java:81)
	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:1053)
	at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4066)
	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3657)
	at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2629)
	at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2593)
	at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2427)
	at org.eclipse.ui.internal.Workbench$7.run(Workbench.java:670)
	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
	at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:663)
	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: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)