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Template model editor issue [message #1821510]

Thu, 13 February 2020 14:25

Eclipse User

The template model editor fails to open a template model after eclipse restart.

An error printout is include below. Any suggestion on how to fix this are appreciated.

Thanks,
Sven

Error: Failed to create the part's controls

Error detail:

java.lang.NullPointerException
at org.eclipse.emf.ecp.common.spi.cachetree.AbstractCachedTree.update(AbstractCachedTree.java:115)
at org.eclipse.emfforms.spi.swt.treemasterdetail.diagnostic.DiagnosticCache.updateCacheWithoutRefresh(DiagnosticCache.java:319)
at org.eclipse.emfforms.spi.swt.treemasterdetail.diagnostic.DiagnosticCache.lambda$3(DiagnosticCache.java:143)
at java.base/java.lang.Iterable.forEach(Iterable.java:75)
at org.eclipse.emfforms.spi.swt.treemasterdetail.diagnostic.DiagnosticCache.init(DiagnosticCache.java:143)
at org.eclipse.emfforms.spi.swt.treemasterdetail.diagnostic.DiagnosticCache.<init>(DiagnosticCache.java:80)
at org.eclipse.emfforms.spi.editor.GenericEditor.createDiangosticCache(GenericEditor.java:440)
at org.eclipse.emfforms.spi.editor.GenericEditor.setupDiagnosticCache(GenericEditor.java:429)
at org.eclipse.emfforms.spi.editor.GenericEditor.createPartControl(GenericEditor.java:338)
at org.eclipse.ui.internal.e4.compatibility.CompatibilityPart.createPartControl(CompatibilityPart.java:154)
at org.eclipse.ui.internal.e4.compatibility.CompatibilityEditor.createPartControl(CompatibilityEditor.java:96)
at org.eclipse.ui.internal.e4.compatibility.CompatibilityPart.create(CompatibilityPart.java:361)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:567)
at org.eclipse.e4.core.internal.di.MethodRequestor.execute(MethodRequestor.java:58)
at org.eclipse.e4.core.internal.di.InjectorImpl.processAnnotated(InjectorImpl.java:1002)
at org.eclipse.e4.core.internal.di.InjectorImpl.processAnnotated(InjectorImpl.java:967)
at org.eclipse.e4.core.internal.di.InjectorImpl.internalInject(InjectorImpl.java:139)
at org.eclipse.e4.core.internal.di.InjectorImpl.internalMake(InjectorImpl.java:408)
at org.eclipse.e4.core.internal.di.InjectorImpl.make(InjectorImpl.java:331)
at org.eclipse.e4.core.contexts.ContextInjectionFactory.make(ContextInjectionFactory.java:202)
at org.eclipse.e4.ui.internal.workbench.ReflectionContributionFactory.createFromBundle(ReflectionContributionFactory.java:91)
at org.eclipse.e4.ui.internal.workbench.ReflectionContributionFactory.doCreate(ReflectionContributionFactory.java:60)
at org.eclipse.e4.ui.internal.workbench.ReflectionContributionFactory.create(ReflectionContributionFactory.java:42)
at org.eclipse.e4.ui.workbench.renderers.swt.ContributedPartRenderer.createWidget(ContributedPartRenderer.java:132)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.createWidget(PartRenderingEngine.java:1002)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.safeCreateGui(PartRenderingEngine.java:662)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.safeCreateGui(PartRenderingEngine.java:768)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.access$0(PartRenderingEngine.java:739)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$2.run(PartRenderingEngine.java:733)
at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:45)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.createGui(PartRenderingEngine.java:717)
at org.eclipse.e4.ui.workbench.renderers.swt.StackRenderer.showTab(StackRenderer.java:1297)
at org.eclipse.e4.ui.workbench.renderers.swt.LazyStackRenderer.lambda$0(LazyStackRenderer.java:75)
at org.eclipse.e4.ui.services.internal.events.UIEventHandler.lambda$0(UIEventHandler.java:38)
at org.eclipse.swt.widgets.Synchronizer.syncExec(Synchronizer.java:236)
at org.eclipse.ui.internal.UISynchronizer.syncExec(UISynchronizer.java:146)
at org.eclipse.swt.widgets.Display.syncExec(Display.java:4629)
at org.eclipse.e4.ui.internal.workbench.swt.E4Application$1.syncExec(E4Application.java:219)
at org.eclipse.e4.ui.services.internal.events.UIEventHandler.handleEvent(UIEventHandler.java:38)
at org.eclipse.equinox.internal.event.EventHandlerWrapper.handleEvent(EventHandlerWrapper.java:205)
at org.eclipse.equinox.internal.event.EventHandlerTracker.dispatchEvent(EventHandlerTracker.java:203)
at org.eclipse.equinox.internal.event.EventHandlerTracker.dispatchEvent(EventHandlerTracker.java:1)
at org.eclipse.osgi.framework.eventmgr.EventManager.dispatchEvent(EventManager.java:234)
at org.eclipse.osgi.framework.eventmgr.ListenerQueue.dispatchEventSynchronous(ListenerQueue.java:151)
at org.eclipse.equinox.internal.event.EventAdminImpl.dispatchEvent(EventAdminImpl.java:132)
at org.eclipse.equinox.internal.event.EventAdminImpl.sendEvent(EventAdminImpl.java:75)
at org.eclipse.equinox.internal.event.EventComponent.sendEvent(EventComponent.java:44)
at org.eclipse.e4.ui.services.internal.events.EventBroker.send(EventBroker.java:55)
at org.eclipse.e4.ui.internal.workbench.UIEventPublisher.notifyChanged(UIEventPublisher.java:63)
at org.eclipse.emf.common.notify.impl.BasicNotifierImpl.eNotify(BasicNotifierImpl.java:424)
at org.eclipse.e4.ui.model.application.ui.impl.ElementContainerImpl.setSelectedElementGen(ElementContainerImpl.java:170)
at org.eclipse.e4.ui.model.application.ui.impl.ElementContainerImpl.setSelectedElement(ElementContainerImpl.java:188)
at org.eclipse.e4.ui.internal.workbench.ModelServiceImpl.showElementInWindow(ModelServiceImpl.java:661)
at org.eclipse.e4.ui.internal.workbench.ModelServiceImpl.bringToTop(ModelServiceImpl.java:625)
at org.eclipse.e4.ui.internal.workbench.PartServiceImpl.delegateBringToTop(PartServiceImpl.java:790)
at org.eclipse.e4.ui.internal.workbench.PartServiceImpl.bringToTop(PartServiceImpl.java:404)
at org.eclipse.e4.ui.internal.workbench.PartServiceImpl.showPart(PartServiceImpl.java:1239)
at org.eclipse.ui.internal.WorkbenchPage.busyOpenEditor(WorkbenchPage.java:3207)
at org.eclipse.ui.internal.WorkbenchPage.lambda$9(WorkbenchPage.java:3112)
at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:72)
at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:3110)
at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:3080)
at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:3071)
at org.eclipse.ui.ide.IDE.openEditor(IDE.java:570)
at org.eclipse.ui.ide.IDE.openEditor(IDE.java:525)
at org.eclipse.jdt.internal.ui.javaeditor.EditorUtility.openInEditor(EditorUtility.java:363)
at org.eclipse.jdt.internal.ui.javaeditor.EditorUtility.openInEditor(EditorUtility.java:170)
at org.eclipse.jdt.ui.actions.OpenAction.run(OpenAction.java:285)
at org.eclipse.jdt.ui.actions.OpenAction.run(OpenAction.java:251)
at org.eclipse.jdt.ui.actions.SelectionDispatchAction.dispatchRun(SelectionDispatchAction.java:274)
at org.eclipse.jdt.ui.actions.SelectionDispatchAction.run(SelectionDispatchAction.java:252)
at org.eclipse.jdt.internal.ui.navigator.OpenAndExpand.run(OpenAndExpand.java:53)
at org.eclipse.ui.actions.RetargetAction.run(RetargetAction.java:215)
at org.eclipse.ui.navigator.CommonNavigatorManager$1.open(CommonNavigatorManager.java:183)
at org.eclipse.ui.OpenAndLinkWithEditorHelper$InternalListener.open(OpenAndLinkWithEditorHelper.java:48)
at org.eclipse.jface.viewers.StructuredViewer$2.run(StructuredViewer.java:797)
at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:45)
at org.eclipse.ui.internal.JFaceUtil.lambda$0(JFaceUtil.java:47)
at org.eclipse.jface.util.SafeRunnable.run(SafeRunnable.java:174)
at org.eclipse.jface.viewers.StructuredViewer.fireOpen(StructuredViewer.java:794)
at org.eclipse.jface.viewers.StructuredViewer.handleOpen(StructuredViewer.java:1110)
at org.eclipse.ui.navigator.CommonViewer.handleOpen(CommonViewer.java:454)
at org.eclipse.jface.util.OpenStrategy.fireOpenEvent(OpenStrategy.java:275)
at org.eclipse.jface.util.OpenStrategy.access$2(OpenStrategy.java:270)
at org.eclipse.jface.util.OpenStrategy$1.handleEvent(OpenStrategy.java:310)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:89)
at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4175)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1057)
at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3988)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3587)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$5.run(PartRenderingEngine.java:1160)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:338)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1049)
at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:155)
at org.eclipse.ui.internal.Workbench.lambda$3(Workbench.java:660)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:338)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:559)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:154)
at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:150)
at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:203)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:137)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:107)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:401)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:255)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:567)
at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:657)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:594)
at org.eclipse.equinox.launcher.Main.run(Main.java:1465)

Re: Template model editor issue [message #1821863 is a reply to message #1821510]

Fri, 21 February 2020 05:49

Eclipse User

Hi Sven,
this looks like a bug. Could you provide the template that causes the NPE in a bug report?

Best,
Eugen

Re: Template model editor issue [message #1822183 is a reply to message #1821863]

Fri, 28 February 2020 18:46

Eclipse User

Hi Eugen,

I have attached a file with just one view template that causes the NPE. I hope that helps.

The attribute value looks a bit odd when opening the file in a text editor, this is just an observation since I don't know how it's created/generated.

Thanks,
Sven

Attachment: sample.template
(Size: 0.88KB, Downloaded 157 times)

Re: Template model editor issue [message #1822218 is a reply to message #1821863]

Sun, 01 March 2020 19:30

Eclipse User

Hi Eugen,

I may be worth noting that the template model that I can't load in the editor, works with the view model.

Regards,
Sven

Re: Template model editor issue [message #1822250 is a reply to message #1822218]

Mon, 02 March 2020 09:41

Eclipse User

Hi Sven,

thank you for the file. I will take a look at it and let you know what I can figure out.

Best,
Eugen

Re: Template model editor issue [message #1822266 is a reply to message #1822250]

Mon, 02 March 2020 15:14

Eclipse User

Hi Sven,

this is a bug. I created https://bugs.eclipse.org/bugs/show_bug.cgi?id=560703 .
Could you explain your use case of the attribute field with the attribute value?

Best,
Eugen

Re: Template model editor issue [message #1822504 is a reply to message #1822266]

Sun, 08 March 2020 19:18

Eclipse User

Hi Eugen,

I'm using the view model element selector, with the name attribute. I commented about the attribute value looking odd in a previous post, but since it works with the view model I don't think that's an issue.

The template file is only editable in the Eclipse session in which it is created. The next time Eclipse is started the file can't be opened in the model editor. I created a very simple file with the same result, see attached screenshots.

Sorry for slow response, I missed the new message notifications.

Regards,
Sven

Attachment: Sample-template.png
(Size: 14.95KB, Downloaded 183 times)
Attachment: Restart-Eclipse.png
(Size: 62.58KB, Downloaded 154 times)

Re: Template model editor issue [message #1822520 is a reply to message #1822504]

Mon, 09 March 2020 05:35

Eclipse User

Hi Sven,

yes I could reproduce your error and created a bug for this.

My question was why you are using this kind of selector in the template? I assume you want to change the style of a specific control? Or do you have multiple controls with the name 'Helle' ?
Because if you have exactly one, you could use the DomainModelReferenceSelector instead.

We will still look into the issue.

Best,
Eugen

Re: Template model editor issue [message #1822554 is a reply to message #1822520]

Mon, 09 March 2020 14:38

Eclipse User

Hi Eugen,

There are multiple tables in the model that should have the same view properties, it's convenient to use the ViewModelElementSelector and refer to them by name. The DomainModelReferenceSelector could also be used, however it doesn't work either, so not a viable alternative at this point.

Thanks for filing the bug report!

Do you have any idea of timing for a fix?

Regards,
Sven

Re: Template model editor issue [message #1822593 is a reply to message #1822554]

Tue, 10 March 2020 06:25

Eclipse User

Hi Sven,

unfortunately I don't have an estimate for you. Any contribution is welcome.
Could you open a bug report for the DomainModelReferenceSelector issue?

Best,
Eugen

Re: Template model editor issue [message #1822659 is a reply to message #1822593]

Tue, 10 March 2020 20:56

Eclipse User

Hi Eugen,

I filed a bug report with a sample template attached.

It seems I could only attach one file with the bug report so I'm attaching the corresponding ecore file here.

I would appreciate if you check if you can reproduce the NPE and let me know.

Regards,
Sven

Attachment: test.ecore
(Size: 1.11KB, Downloaded 144 times)

Re: Template model editor issue [message #1822690 is a reply to message #1822659]

Wed, 11 March 2020 09:24

Eclipse User

Hi Sven,

I cannot reproduce an error with the template model you attached.

Can you export your workspace and attach it here or on the issue?

Best,
Eugen

Re: Template model editor issue [message #1822705 is a reply to message #1822690]

Wed, 11 March 2020 12:34

Eclipse User

Hi Eugen,

A test model project that triggers the NPE here is attached (import as existing project) .

Please let me know how it goes.

Regards,
Sven

Attachment: Test.zip
(Size: 29.84KB, Downloaded 155 times)

Re: Template model editor issue [message #1822724 is a reply to message #1822705]

Thu, 12 March 2020 05:25

Eclipse User

Hi Sven,

I had a preliminary fix in my IDE, so I did not see the error.
Thank you for reporting.
I will comment on the bug as soon as I have a fix,

Best,
Eugen

Re: Template model editor issue [message #1822753 is a reply to message #1822724]

Thu, 12 March 2020 18:28

Eclipse User

Hi Eugen,

OK, thanks, I look forward to hearing from you.

Regards,
Sven

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