rules editor crashes, "Failed to create the part's controls"

[Kristian]

I'm suffering with some bug in designer, it refuses to show rules in Rules editor anymore. I experienced it in 1.1.0, and now also in 1.2.0 snapshot.

Has anyone else experienced this? Is there any workaround? I did not find any reported issue.

Best regards,

Kristian

java.lang.NullPointerException

at org.eclipse.xtext.EcoreUtil2.getContainerOfType(EcoreUtil2.java:100)

at org.eclipse.xtext.GrammarUtil.containingAssignment(GrammarUtil.java:95)

at org.eclipse.xtext.resource.DefaultLocationInFileProvider.findNodeFor(DefaultLocationInFileProvider.java:321)

at org.eclipse.xtext.resource.DefaultLocationInFileProvider.doGetTextRegion(DefaultLocationInFileProvider.java:77)

at org.eclipse.xtext.resource.DefaultLocationInFileProvider.getTextRegion(DefaultLocationInFileProvider.java:56)

at org.eclipse.xtext.resource.DefaultLocationInFileProvider.getFullTextRegion(DefaultLocationInFileProvider.java:52)

at org.eclipse.xtext.xbase.jvmmodel.JvmLocationInFileProvider.getFullTextRegion(JvmLocationInFileProvider.java:32)

at org.eclipse.xtext.ui.editor.folding.DefaultFoldingRegionProvider.computeObjectFolding(DefaultFoldingRegionProvider.java:101)

at org.eclipse.xtext.ui.editor.folding.DefaultFoldingRegionProvider.computeObjectFolding(DefaultFoldingRegionProvider.java:86)

at org.eclipse.xtext.ui.editor.folding.DefaultFoldingRegionProvider.doGetFoldingRegions(DefaultFoldingRegionProvider.java:68)

at org.eclipse.xtext.ui.editor.folding.DefaultFoldingRegionProvider$1.exec(DefaultFoldingRegionProvider.java:60)

at org.eclipse.xtext.ui.editor.folding.DefaultFoldingRegionProvider$1.exec(DefaultFoldingRegionProvider.java:1)

at org.eclipse.xtext.util.concurrent.AbstractReadWriteAcces.readOnly(AbstractReadWriteAcces.java:32)

at org.eclipse.xtext.ui.editor.model.XtextDocument.readOnly(XtextDocument.java:78)

at org.eclipse.xtext.ui.editor.folding.DefaultFoldingRegionProvider.getFoldingRegions(DefaultFoldingRegionProvider.java:56)

at org.eclipse.xtext.ui.editor.folding.DefaultFoldingStructureProvider.calculateProjectionAnnotationModel(DefaultFoldingStructureProvider.java:114)

at org.eclipse.xtext.ui.editor.folding.DefaultFoldingStructureProvider.initialize(DefaultFoldingStructureProvider.java:58)

at org.eclipse.xtext.ui.editor.folding.DefaultFoldingStructureProvider.handleProjectionEnabled(DefaultFoldingStructureProvider.java:99)

at org.eclipse.xtext.ui.editor.folding.DefaultFoldingStructureProvider$ProjectionChangeListener.projectionEnabled(DefaultFoldingStructureProvider.java:186)

at org.eclipse.jface.text.source.projection.ProjectionViewer.fireProjectionEnabled(ProjectionViewer.java:487)

at org.eclipse.jface.text.source.projection.ProjectionViewer.enableProjection(ProjectionViewer.java:535)

at org.eclipse.jface.text.source.projection.ProjectionViewer.doOperation(ProjectionViewer.java:1414)

at org.eclipse.xtext.ui.editor.XtextEditor.installFoldingSupport(XtextEditor.java:476)

at org.eclipse.xtext.ui.editor.XtextEditor.createPartControl(XtextEditor.java:457)

at org.eclipse.ui.internal.e4.compatibility.CompatibilityPart.createPartControl(CompatibilityPart.java:129)

at org.eclipse.ui.internal.e4.compatibility.CompatibilityEditor.createPartControl(CompatibilityEditor.java:95)

at org.eclipse.ui.internal.e4.compatibility.CompatibilityPart.create(CompatibilityPart.java:300)

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.e4.core.internal.di.MethodRequestor.execute(MethodRequestor.java:56)

at org.eclipse.e4.core.internal.di.InjectorImpl.processAnnotated(InjectorImpl.java:857)

at org.eclipse.e4.core.internal.di.InjectorImpl.processAnnotated(InjectorImpl.java:837)

at org.eclipse.e4.core.internal.di.InjectorImpl.inject(InjectorImpl.java:111)

at org.eclipse.e4.core.internal.di.InjectorImpl.internalMake(InjectorImpl.java:318)

at org.eclipse.e4.core.internal.di.InjectorImpl.make(InjectorImpl.java:240)

at org.eclipse.e4.core.contexts.ContextInjectionFactory.make(ContextInjectionFactory.java:161)

at org.eclipse.e4.ui.internal.workbench.ReflectionContributionFactory.createFromBundle(ReflectionContributionFactory.java:102)

at org.eclipse.e4.ui.internal.workbench.ReflectionContributionFactory.doCreate(ReflectionContributionFactory.java:71)

at org.eclipse.e4.ui.internal.workbench.ReflectionContributionFactory.create(ReflectionContributionFactory.java:53)

at org.eclipse.e4.ui.workbench.renderers.swt.ContributedPartRenderer.createWidget(ContributedPartRenderer.java:141)

at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.createWidget(PartRenderingEngine.java:889)

at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.safeCreateGui(PartRenderingEngine.java:623)

at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.safeCreateGui(PartRenderingEngine.java:725)

at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.access$2(PartRenderingEngine.java:696)

at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$7.run(PartRenderingEngine.java:690)

at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)

at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.createGui(PartRenderingEngine.java:675)

at org.eclipse.e4.ui.internal.workbench.PartServiceImpl$1.handleEvent(PartServiceImpl.java:90)

at org.eclipse.e4.ui.services.internal.events.UIEventHandler$1.run(UIEventHandler.java:41)

at org.eclipse.swt.widgets.Synchronizer.syncExec(Synchronizer.java:180)

at org.eclipse.ui.internal.UISynchronizer.syncExec(UISynchronizer.java:150)

at org.eclipse.swt.widgets.Display.syncExec(Display.java:4687)

at org.eclipse.e4.ui.internal.workbench.swt.E4Application$1.syncExec(E4Application.java:187)

at org.eclipse.e4.ui.services.internal.events.UIEventHandler.handleEvent(UIEventHandler.java:38)

at org.eclipse.equinox.internal.event.EventHandlerWrapper.handleEvent(EventHandlerWrapper.java:197)

at org.eclipse.equinox.internal.event.EventHandlerTracker.dispatchEvent(EventHandlerTracker.java:197)

at org.eclipse.equinox.internal.event.EventHandlerTracker.dispatchEvent(EventHandlerTracker.java:1)

at org.eclipse.osgi.framework.eventmgr.EventManager.dispatchEvent(EventManager.java:230)

at org.eclipse.osgi.framework.eventmgr.ListenerQueue.dispatchEventSynchronous(ListenerQueue.java:148)

at org.eclipse.equinox.internal.event.EventAdminImpl.dispatchEvent(EventAdminImpl.java:135)

at org.eclipse.equinox.internal.event.EventAdminImpl.sendEvent(EventAdminImpl.java:78)

at org.eclipse.equinox.internal.event.EventComponent.sendEvent(EventComponent.java:39)

at org.eclipse.e4.ui.services.internal.events.EventBroker.send(EventBroker.java:81)

at org.eclipse.e4.ui.internal.workbench.UIEventPublisher.notifyChanged(UIEventPublisher.java:57)

at org.eclipse.emf.common.notify.impl.BasicNotifierImpl.eNotify(BasicNotifierImpl.java:374)

at org.eclipse.e4.ui.model.application.ui.impl.ElementContainerImpl.setSelectedElement(ElementContainerImpl.java:171)

at org.eclipse.e4.ui.internal.workbench.ModelServiceImpl.showElementInWindow(ModelServiceImpl.java:418)

at org.eclipse.e4.ui.internal.workbench.ModelServiceImpl.bringToTop(ModelServiceImpl.java:385)

at org.eclipse.e4.ui.internal.workbench.PartServiceImpl.delegateBringToTop(PartServiceImpl.java:578)

at org.eclipse.e4.ui.internal.workbench.PartServiceImpl.bringToTop(PartServiceImpl.java:314)

at org.eclipse.e4.ui.internal.workbench.PartServiceImpl.showPart(PartServiceImpl.java:962)

at org.eclipse.ui.internal.WorkbenchPage.busyOpenEditor(WorkbenchPage.java:3071)

at org.eclipse.ui.internal.WorkbenchPage.access$21(WorkbenchPage.java:2996)

at org.eclipse.ui.internal.WorkbenchPage$8.run(WorkbenchPage.java:2978)

at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70)

at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:2974)

at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:2933)

at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:2924)

at org.eclipse.ui.ide.IDE.openEditor(IDE.java:655)

at org.eclipse.ui.ide.IDE.openEditor(IDE.java:614)

at org.eclipse.ui.actions.OpenFileAction.openFile(OpenFileAction.java:99)

at org.eclipse.ui.actions.OpenSystemEditorAction.run(OpenSystemEditorAction.java:99)

at org.eclipse.ui.actions.RetargetAction.run(RetargetAction.java:221)

at org.eclipse.ui.navigator.CommonNavigatorManager$3.open(CommonNavigatorManager.java:185)

at org.eclipse.ui.OpenAndLinkWithEditorHelper$InternalListener.open(OpenAndLinkWithEditorHelper.java:48)

at org.eclipse.jface.viewers.StructuredViewer$2.run(StructuredViewer.java:866)

at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)

at org.eclipse.ui.internal.JFaceUtil$1.run(JFaceUtil.java:49)

at org.eclipse.jface.util.SafeRunnable.run(SafeRunnable.java:175)

at org.eclipse.jface.viewers.StructuredViewer.fireOpen(StructuredViewer.java:864)

at org.eclipse.jface.viewers.StructuredViewer.handleOpen(StructuredViewer.java:1152)

at org.eclipse.ui.navigator.CommonViewer.handleOpen(CommonViewer.java:462)

at org.eclipse.jface.viewers.StructuredViewer$6.handleOpen(StructuredViewer.java:1256)

at org.eclipse.jface.util.OpenStrategy.fireOpenEvent(OpenStrategy.java:275)

at org.eclipse.jface.util.OpenStrategy.access$2(OpenStrategy.java:269)

at org.eclipse.jface.util.OpenStrategy$1.handleEvent(OpenStrategy.java:309)

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:4169)

at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3758)

at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$9.run(PartRenderingEngine.java:1022)

at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)

at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:916)

at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:86)

at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:585)

at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)

at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:540)

at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)

at org.openhab.designer.ui.internal.application.Application.start(Application.java:48)

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:353)

at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:180)

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:629)

at org.eclipse.equinox.launcher.Main.basicRun(Main.java:584)

at org.eclipse.equinox.launcher.Main.run(Main.java:1438)

[Kristian]

FYI: It's reproducable in both windows and linux versions of the designer.

Regards,

Kristian

[Kai Kreuzer]

Hi Kristian,

I have seen this message sometimes myself, but it is not reproducible. I have just downloaded the latest build of the designer and was able to correctly open rule files (I am using MacOS).

I am not sure, how to reproduce the problem. It also looks like a bug in Xtext as no openHAB class is mentioned in the stacktrace at all. Checking at the Eclipse Bugzilla, I couldn't find any existing bug report though…

Regards,

Kai

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[Kristian]

Hi Kai

Weird.  I would of course like to avoid it, but I can't - it's 100% reproducable for me. Perhaps I have some crap in my rule or item files that causes this.. don't you think? It would be easier to continue using the rules editor instead of the plain text editor.

I agree, that's probably a bug in the Xtext.

I also experienced the same bug for my knx-relays.items file. (I've created a simple ETS OPC-file --> openhab Items converter script using awk, to avoid a mispelled lines). That file should not include any suspicious characters (except åäö-letters but they are used only within strings).

Regards,

Kristian

[Kristian]

I pinned down the line causing this.

Can somebody else please try this line in a rules editor to check whether it's reproducable? 

Close the editor tab after adding this line, and then reopen it (in rules editor).

val timeElapsed_millisec = (LTOP_power_lastUpdate ==null?0: currentTime.time - LTOP_power_lastUpdate.time)

Appearantly syntatically incorrect?

Best regards,

Kristian

[Kristian]

... and this line causes a similar exception in the items editor:

Contact contact_Ovikello "BI4_D Ovikello" (ALL) knx="0/2/31"

[Kai]

FTR: I have entered https://code.google.com/p/openhab/issues/detail?id=295 for this.

[pbos...@gmail.com]

Hi,

Don't know if anyone still looks at this, but had similar problems using Windows 7 x64.

Items, Rules, Sitemaps.. all gave the "Failed to create the part's controls"

Solution for me was to do a "Troubleshoot Compatibility" ; Windows suggested Win XP Service pack 2 and designer now works as it should.

Regards,

Peter