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Build Identifier: 20100617-1415 I can't generate anymore the code from the gmfgen, in log: !ENTRY org.eclipse.ui 4 0 2010-06-25 11:54:02.600 !MESSAGE Unhandled event loop exception !STACK 0 java.lang.NullPointerException at org.eclipse.emf.ecore.util.Diagnostician.validate(Diagnostician.java:143) at org.eclipse.emf.ecore.util.Diagnostician.validate(Diagnostician.java:114) at org.eclipse.gmf.internal.bridge.transform.ValidationHelper.validate(ValidationHelper.java:288) at org.eclipse.gmf.internal.bridge.transform.ValidationHelper.validate(ValidationHelper.java:320) at org.eclipse.gmf.internal.codegen.popup.actions.ExecuteTemplatesOperation.validateGenModel(ExecuteTemplatesOperation.java:263) at org.eclipse.gmf.internal.codegen.popup.actions.ExecuteTemplatesOperation.run(ExecuteTemplatesOperation.java:106) at org.eclipse.gmf.internal.codegen.popup.actions.ExecuteTemplatesAction.run(ExecuteTemplatesAction.java:47) at org.eclipse.ui.internal.PluginAction.runWithEvent(PluginAction.java:251) 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) Reproducible: Sometimes
Ok, after a restart it works again but it is quite strange.
(In reply to comment #1) > Ok, after a restart it works again but it is quite strange. It happens again. The validation is right. (Right click->Validate on the file in package explorer and in the gmfgen editor) I try to restart, to do Project-> clean... but there is still the error. I set it as major, As I can't anymore generate diagram code.
I remove the XTend nature on the project containing the .gmfgen, restart and it works again. But I reset th eXTend nature and it works. So not sure to be related.
[GMF Restructure] Bug 319140 : product GMF and component Generation was the original product and component for this bug
