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Build Identifier: 20110615-0604 - Perform rename refactoring (or any other refactoring), - Request a preview that compares the source code before and after the refactoring, - Hover over the compare window, - NPE. My thinking hat suspects (and I humbly concur) that there is probably no resource associated with the editors of the compare view? protected EObject internalResolveElementAt(XtextResource resource, int offset, boolean isContainment) { IParseResult parseResult = resource.getParseResult(); // Resource is probably null here if (parseResult != null && parseResult.getRootNode() != null) { ... java.lang.NullPointerException at org.eclipse.xtext.resource.EObjectAtOffsetHelper.internalResolveElementAt(EObjectAtOffsetHelper.java:35) at org.eclipse.xtext.resource.EObjectAtOffsetHelper.resolveCrossReferencedElementAt(EObjectAtOffsetHelper.java:31) at org.eclipse.xtext.ui.editor.hover.AbstractEObjectHover.getXtextElementAt(AbstractEObjectHover.java:91) at org.eclipse.xtext.ui.editor.hover.AbstractEObjectHover$1.exec(AbstractEObjectHover.java:51) at org.eclipse.xtext.ui.editor.hover.AbstractEObjectHover$1.exec(AbstractEObjectHover.java:1) at org.eclipse.xtext.util.concurrent.AbstractReadWriteAcces.readOnly(AbstractReadWriteAcces.java:32) at org.eclipse.xtext.ui.editor.model.XtextDocument.readOnly(XtextDocument.java:86) at org.eclipse.xtext.ui.editor.hover.AbstractEObjectHover.getHoverRegion(AbstractEObjectHover.java:49) at org.eclipse.xtext.ui.editor.hover.AbstractCompositeHover.getHoverRegion(AbstractCompositeHover.java:62) at org.eclipse.jface.text.TextViewerHoverManager.computeInformation(TextViewerHoverManager.java:140) at org.eclipse.jface.text.AbstractInformationControlManager.doShowInformation(AbstractInformationControlManager.java:1131) at org.eclipse.jface.text.AbstractHoverInformationControlManager$MouseTracker.mouseHover(AbstractHoverInformationControlManager.java:519) at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:207) 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:3588) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3209) at org.eclipse.jface.window.Window.runEventLoop(Window.java:825) at org.eclipse.jface.window.Window.open(Window.java:801) at org.eclipse.ltk.ui.refactoring.RefactoringWizardOpenOperation$1.run(RefactoringWizardOpenOperation.java:181) at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70) at org.eclipse.ltk.ui.refactoring.RefactoringWizardOpenOperation.run(RefactoringWizardOpenOperation.java:193) at org.eclipse.ltk.ui.refactoring.RefactoringWizardOpenOperation.run(RefactoringWizardOpenOperation.java:116) at org.eclipse.xtext.ui.refactoring.ui.DefaultRenameSupport.startRefactoringWithDialog(DefaultRenameSupport.java:112) at org.eclipse.xtext.ui.refactoring.ui.RenameRefactoringController.startRefactoringWithDialog(RenameRefactoringController.java:137) at org.eclipse.xtext.ui.refactoring.ui.RenameRefactoringController.startRefactoring(RenameRefactoringController.java:74) at org.eclipse.xtext.ui.refactoring.ui.RenameRefactoringController.startLinkedEditing(RenameRefactoringController.java:94) at org.eclipse.xtext.ui.refactoring.ui.RenameRefactoringController.startRefactoring(RenameRefactoringController.java:57) at org.eclipse.xtext.ui.refactoring.ui.RenameElementHandler.startRenameElement(RenameElementHandler.java:80) at org.eclipse.xtext.ui.refactoring.ui.RenameElementHandler.execute(RenameElementHandler.java:59) at org.eclipse.ui.internal.handlers.HandlerProxy.execute(HandlerProxy.java:293) at org.eclipse.core.commands.Command.executeWithChecks(Command.java:476) at org.eclipse.core.commands.ParameterizedCommand.executeWithChecks(ParameterizedCommand.java:508) at org.eclipse.ui.internal.handlers.HandlerService.executeCommand(HandlerService.java:169) at org.eclipse.ui.internal.keys.WorkbenchKeyboard.executeCommand(WorkbenchKeyboard.java:468) at org.eclipse.ui.internal.keys.WorkbenchKeyboard.press(WorkbenchKeyboard.java:786) at org.eclipse.ui.internal.keys.WorkbenchKeyboard.processKeyEvent(WorkbenchKeyboard.java:885) at org.eclipse.ui.internal.keys.WorkbenchKeyboard.filterKeySequenceBindings(WorkbenchKeyboard.java:567) at org.eclipse.ui.internal.keys.WorkbenchKeyboard.access$3(WorkbenchKeyboard.java:508) at org.eclipse.ui.internal.keys.WorkbenchKeyboard$KeyDownFilter.handleEvent(WorkbenchKeyboard.java:123) at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84) at org.eclipse.swt.widgets.Display.filterEvent(Display.java:1531) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1257) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1282) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1267) at org.eclipse.swt.widgets.Widget.sendKeyEvent(Widget.java:1294) at org.eclipse.swt.widgets.Widget.gtk_key_press_event(Widget.java:730) at org.eclipse.swt.widgets.Control.gtk_key_press_event(Control.java:3019) at org.eclipse.swt.widgets.Composite.gtk_key_press_event(Composite.java:734) at org.eclipse.swt.widgets.Widget.windowProc(Widget.java:1743) at org.eclipse.swt.widgets.Control.windowProc(Control.java:5016) at org.eclipse.swt.widgets.Display.windowProc(Display.java:4408) at org.eclipse.swt.internal.gtk.OS._gtk_main_do_event(Native Method) at org.eclipse.swt.internal.gtk.OS.gtk_main_do_event(OS.java:8394) at org.eclipse.swt.widgets.Display.eventProc(Display.java:1245) at org.eclipse.swt.internal.gtk.OS._g_main_context_iteration(Native Method) at org.eclipse.swt.internal.gtk.OS.g_main_context_iteration(OS.java:2258) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3207) at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2696) at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2660) at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2494) at org.eclipse.ui.internal.Workbench$7.run(Workbench.java:674) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332) at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:667) at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149) at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:123) 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:344) 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:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:601) at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:622) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:577) at org.eclipse.equinox.launcher.Main.run(Main.java:1410) at org.eclipse.equinox.launcher.Main.main(Main.java:1386) Reproducible: Always
BTW, I'm using Xtext 2.0.1
Cannot reproduce. I guess that's been fixed.
Closing all bugs that were set to RESOLVED before Neon.0
