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[emfstore-dev] Fwd: ECP on Eclipse E4

Hi Hammad, 
As far as I can see from your stacktrace, you are using an older version of ECP. During the last months we did a huge refactoring. I would recommend you to switch to ECP 1.2 which will be released today.
If you don't want to switch or need to solve this problem today, I can only recommend you to check your runconfiguration and check that all plugins with the naming schema ecp.view.* are checked, eg org.eclipse.emf.ecp.view.group.model, org.eclipse.emf.ecp.view.group.model.edit, org.eclipse.emf.ecp.view.group.model.ui and org.eclipse.emf.ecp.view.group.model.swt . 

If you have issues  configuring the runconfig please send a screenshot of your runconfig. 
If you have further questions please ask. You can find alot of already answered questions in the newsgroup which you can find here: http://www.eclipse.org/forums/?group=eclipse.technology.emft  (news://news.eclipse.org/eclipse.technology.emft)

Cheers,
Eugen


From: Hammad Aslam Khan <hammad@xxxxxxxxxxxxxx>
Date: 2014-02-26 12:28 GMT+01:00
Subject: [emfstore-dev] ECP on Eclipse E4
To: emfstore-dev@xxxxxxxxxxx


While using ECP in E4 application, when a certain editor is invoked for ModelElement -> double-click event, I get an exception. I am not sure where I am making a mistake… Exception occurs when EditorPageContext attempts to create UI I.e. edtrPgCntnt.createUI(composite)//in below code

Can someone help on some pointers?

My code:

@PostConstruct

public void postConstruct(Composite composite,@Named(IServiceConstants.ACTIVE_SELECTION) @Optional EObject mdlElmnt){


ECPEditorContext edtrCntxt=new EditorContext(mdlElmnt, ECPUtil.getECPProjectManager().getProject(mdlElmnt), composite.getShell());

IEditorCompositeProvider edtrPgCntnt = EditorFactory.INSTANCE.getEditorComposite(edtrCntxt);

edtrPgCntnt.createUI(composite);

}



Exception is:


org.eclipse.e4.core.di.InjectionException: java.lang.NullPointerException

at org.eclipse.e4.core.internal.di.MethodRequestor.execute(MethodRequestor.java:63)

at org.eclipse.e4.core.internal.di.InjectorImpl.processAnnotated(InjectorImpl.java:877)

at org.eclipse.e4.core.internal.di.InjectorImpl.inject(InjectorImpl.java:119)

at org.eclipse.e4.core.internal.di.InjectorImpl.internalMake(InjectorImpl.java:333)

at org.eclipse.e4.core.internal.di.InjectorImpl.make(InjectorImpl.java:254)

at org.eclipse.e4.core.contexts.ContextInjectionFactory.make(ContextInjectionFactory.java:162)

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:129)

at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.createWidget(PartRenderingEngine.java:949)

at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.safeCreateGui(PartRenderingEngine.java:633)

at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.safeCreateGui(PartRenderingEngine.java:735)

at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.access$2(PartRenderingEngine.java:706)

at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$7.run(PartRenderingEngine.java:700)

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

at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.createGui(PartRenderingEngine.java:685)

at org.eclipse.e4.ui.workbench.renderers.swt.StackRenderer.showTab(StackRenderer.java:1096)

at org.eclipse.e4.ui.workbench.renderers.swt.LazyStackRenderer$1.handleEvent(LazyStackRenderer.java:66)

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.swt.widgets.Display.syncExec(Display.java:4650)

at org.eclipse.e4.ui.internal.workbench.swt.E4Application$1.syncExec(E4Application.java:205)

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:80)

at org.eclipse.e4.ui.internal.workbench.UIEventPublisher.notifyChanged(UIEventPublisher.java:58)

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:576)

at org.eclipse.e4.ui.internal.workbench.ModelServiceImpl.bringToTop(ModelServiceImpl.java:543)

at org.eclipse.e4.ui.internal.workbench.PartServiceImpl.delegateBringToTop(PartServiceImpl.java:605)

at org.eclipse.e4.ui.internal.workbench.PartServiceImpl.activate(PartServiceImpl.java:585)

at org.eclipse.e4.ui.internal.workbench.PartServiceImpl.activate(PartServiceImpl.java:539)

at org.eclipse.e4.ui.internal.workbench.PartServiceImpl.activate(PartServiceImpl.java:528)

at org.eclipse.e4.ui.internal.workbench.PartServiceImpl.showPart(PartServiceImpl.java:1021)

at org.eclipse.e4.ui.internal.workbench.ApplicationPartServiceImpl.showPart(ApplicationPartServiceImpl.java:111)

at com.mypackage.application.parts.views.MYECPModelElementOpener.openModelElement(MYECPModelElementOpener.java:22)

at org.eclipse.emf.ecp.internal.ui.util.ECPHandlerHelper.openModelElement(ECPHandlerHelper.java:395)

at com.mypackage.application.parts.ModelViewPart$1.doubleClick(ModelViewPart.java:64)

at org.eclipse.jface.viewers.StructuredViewer$1.run(StructuredViewer.java:845)

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.fireDoubleClick(StructuredViewer.java:843)

at org.eclipse.jface.viewers.AbstractTreeViewer.handleDoubleSelect(AbstractTreeViewer.java:1477)

at org.eclipse.jface.viewers.StructuredViewer$4.widgetDefaultSelected(StructuredViewer.java:1246)

at org.eclipse.jface.util.OpenStrategy.fireDefaultSelectionEvent(OpenStrategy.java:249)

at org.eclipse.jface.util.OpenStrategy.access$0(OpenStrategy.java:246)

at org.eclipse.jface.util.OpenStrategy$1.handleEvent(OpenStrategy.java:307)

at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)

at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4166)

at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1466)

at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1489)

at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1474)

at org.eclipse.swt.widgets.Widget.notifyListeners(Widget.java:1279)

at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4012)

at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3651)

at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$9.run(PartRenderingEngine.java:1113)

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

at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:997)

at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:138)

at org.eclipse.e4.ui.internal.workbench.swt.E4Application.start(E4Application.java:162)

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:354)

at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:181)

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:636)

at org.eclipse.equinox.launcher.Main.basicRun(Main.java:591)

at org.eclipse.equinox.launcher.Main.run(Main.java:1450)

at org.eclipse.equinox.launcher.Main.main(Main.java:1426)

Caused by: java.lang.NullPointerException

at org.eclipse.emf.ecp.internal.ui.view.builders.NodeBuilders.build(NodeBuilders.java:119)

at org.eclipse.emf.ecp.internal.ui.view.builders.NodeBuilders.build(NodeBuilders.java:103)

at org.eclipse.emf.ecp.ui.view.swt.internal.ECPSWTViewRendererImpl.render(ECPSWTViewRendererImpl.java:98)

at org.eclipse.emf.ecp.internal.editor.ViewModelEditorComposite.createUI(ViewModelEditorComposite.java:53)

at com.mypackage.application.parts.views.MYEditor.postConstruct(ECPE4Editor.java:36)

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)

... 82 more


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--
Eugen Neufeld, M.Sc.

Software Engineer / Consultant
EclipseSource Munich

Email: eneufeld@xxxxxxxxxxxxxxxxx
Web: http://eclipsesource.com/munich
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Fax: +49 89 21 555 301 - 9

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