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NPE when using content assist in SGen #547

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tkutz opened this issue Apr 1, 2016 · 1 comment
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NPE when using content assist in SGen #547

tkutz opened this issue Apr 1, 2016 · 1 comment

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@tkutz
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tkutz commented Apr 1, 2016

Pressing [Ctrl+Space] after "feature" produces the following NPE:

29386 [main] ERROR org.eclipse.xtext.ui.editor.model.XtextDocument  - Error in IXtextModelListener
java.lang.NullPointerException
    at org.yakindu.sct.generator.genmodel.ui.highlighting.SGenSemanticHighlightingCalculator.provideHighlightingFor(SGenSemanticHighlightingCalculator.java:59)
    at org.eclipse.xtext.ui.editor.syntaxcoloring.MergingHighlightedPositionAcceptor.provideHighlightingFor(MergingHighlightedPositionAcceptor.java:53)
    at org.eclipse.xtext.ui.editor.syntaxcoloring.HighlightingReconciler.reconcilePositions(HighlightingReconciler.java:142)
    at org.eclipse.xtext.ui.editor.syntaxcoloring.HighlightingReconciler.modelChanged(HighlightingReconciler.java:385)
    at org.eclipse.xtext.ui.editor.model.XtextDocument.notifyModelListeners(XtextDocument.java:215)
    at org.eclipse.xtext.ui.editor.model.XtextDocument$XtextDocumentLocker.internalReadOnly(XtextDocument.java:535)
    at org.eclipse.xtext.ui.editor.model.XtextDocument$XtextDocumentLocker.priorityReadOnly(XtextDocument.java:485)
    at org.eclipse.xtext.ui.editor.model.XtextDocument.priorityReadOnly(XtextDocument.java:142)
    at org.eclipse.xtext.ui.editor.contentassist.XtextContentAssistProcessor.computeCompletionProposals(XtextContentAssistProcessor.java:69)
    at org.eclipse.jface.text.contentassist.ContentAssistant$5.run(ContentAssistant.java:1904)
    at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
    at org.eclipse.jface.text.contentassist.ContentAssistant.computeCompletionProposals(ContentAssistant.java:1902)
    at org.eclipse.jface.text.contentassist.CompletionProposalPopup.computeProposals(CompletionProposalPopup.java:573)
    at org.eclipse.jface.text.contentassist.CompletionProposalPopup.access$16(CompletionProposalPopup.java:570)
    at org.eclipse.jface.text.contentassist.CompletionProposalPopup$2.run(CompletionProposalPopup.java:505)
    at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70)
    at org.eclipse.jface.text.contentassist.CompletionProposalPopup.showProposals(CompletionProposalPopup.java:499)
    at org.eclipse.jface.text.contentassist.ContentAssistant.showPossibleCompletions(ContentAssistant.java:1720)
    at org.eclipse.jface.text.source.SourceViewer.doOperation(SourceViewer.java:967)
    at org.eclipse.jface.text.source.projection.ProjectionViewer.doOperation(ProjectionViewer.java:1501)
    at org.eclipse.ui.texteditor.ContentAssistAction$1.run(ContentAssistAction.java:82)
    at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70)
    at org.eclipse.ui.texteditor.ContentAssistAction.run(ContentAssistAction.java:80)
    at org.eclipse.jface.action.Action.runWithEvent(Action.java:473)
    at org.eclipse.jface.commands.ActionHandler.execute(ActionHandler.java:122)
    at org.eclipse.ui.internal.handlers.E4HandlerProxy.execute(E4HandlerProxy.java:90)
    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:606)
    at org.eclipse.e4.core.internal.di.MethodRequestor.execute(MethodRequestor.java:56)
    at org.eclipse.e4.core.internal.di.InjectorImpl.invokeUsingClass(InjectorImpl.java:252)
    at org.eclipse.e4.core.internal.di.InjectorImpl.invoke(InjectorImpl.java:234)
    at org.eclipse.e4.core.contexts.ContextInjectionFactory.invoke(ContextInjectionFactory.java:132)
    at org.eclipse.e4.core.commands.internal.HandlerServiceHandler.execute(HandlerServiceHandler.java:152)
    at org.eclipse.core.commands.Command.executeWithChecks(Command.java:493)
    at org.eclipse.core.commands.ParameterizedCommand.executeWithChecks(ParameterizedCommand.java:486)
    at org.eclipse.e4.core.commands.internal.HandlerServiceImpl.executeHandler(HandlerServiceImpl.java:210)
    at org.eclipse.e4.ui.bindings.keys.KeyBindingDispatcher.executeCommand(KeyBindingDispatcher.java:286)
    at org.eclipse.e4.ui.bindings.keys.KeyBindingDispatcher.press(KeyBindingDispatcher.java:507)
    at org.eclipse.e4.ui.bindings.keys.KeyBindingDispatcher.processKeyEvent(KeyBindingDispatcher.java:558)
    at org.eclipse.e4.ui.bindings.keys.KeyBindingDispatcher.filterKeySequenceBindings(KeyBindingDispatcher.java:378)
    at org.eclipse.e4.ui.bindings.keys.KeyBindingDispatcher.access$0(KeyBindingDispatcher.java:324)
    at org.eclipse.e4.ui.bindings.keys.KeyBindingDispatcher$KeyDownFilter.handleEvent(KeyBindingDispatcher.java:86)
    at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
    at org.eclipse.swt.widgets.Display.filterEvent(Display.java:1105)
    at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4225)
    at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1491)
    at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1514)
    at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1499)
    at org.eclipse.swt.widgets.Widget.sendKeyEvent(Widget.java:1528)
    at org.eclipse.swt.widgets.Widget.sendKeyEvent(Widget.java:1524)
    at org.eclipse.swt.widgets.Canvas.sendKeyEvent(Canvas.java:496)
    at org.eclipse.swt.widgets.Control.doCommandBySelector(Control.java:1060)
    at org.eclipse.swt.widgets.Display.windowProc(Display.java:5784)
    at org.eclipse.swt.internal.cocoa.OS.objc_msgSend(Native Method)
    at org.eclipse.swt.internal.cocoa.NSResponder.interpretKeyEvents(NSResponder.java:68)
    at org.eclipse.swt.widgets.Composite.keyDown(Composite.java:594)
    at org.eclipse.swt.widgets.Display.windowProc(Display.java:5694)
    at org.eclipse.swt.internal.cocoa.OS.objc_msgSendSuper(Native Method)
    at org.eclipse.swt.widgets.Widget.callSuper(Widget.java:227)
    at org.eclipse.swt.widgets.Widget.windowSendEvent(Widget.java:2130)
    at org.eclipse.swt.widgets.Shell.windowSendEvent(Shell.java:2337)
    at org.eclipse.swt.widgets.Display.windowProc(Display.java:5756)
    at org.eclipse.swt.internal.cocoa.OS.objc_msgSendSuper(Native Method)
    at org.eclipse.swt.widgets.Display.applicationSendEvent(Display.java:5193)
    at org.eclipse.swt.widgets.Display.applicationProc(Display.java:5342)
    at org.eclipse.swt.internal.cocoa.OS.objc_msgSend(Native Method)
    at org.eclipse.swt.internal.cocoa.NSApplication.sendEvent(NSApplication.java:128)
    at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3695)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$4.run(PartRenderingEngine.java:1127)
    at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:337)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1018)
    at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:156)
    at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:654)
    at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:337)
    at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:598)
    at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:150)
    at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:139)
    at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)
    at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:134)
    at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104)
    at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:380)
    at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:235)
    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:606)
    at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:669)
    at org.eclipse.equinox.launcher.Main.basicRun(Main.java:608)
    at org.eclipse.equinox.launcher.Main.run(Main.java:1515)
    at org.eclipse.equinox.launcher.Main.main(Main.java:1488)
@tkutz
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tkutz commented Apr 1, 2016

Fixed by pull request #553.

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