[Lab course] Platform Architecture editor crashes
Steps to reproduce
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Import https://git.fortiss.org/mbse-praktikum/dev/raw/master/models/Basismodel.af3_23
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Try to open platform architecture
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Observe the following crash
!ENTRY org.fortiss.tooling.kernel 4 0 2019-04-03 16:21:06.976 !MESSAGE Editor instantiation failed. !STACK 0 org.eclipse.core.runtime.AssertionFailedException: null argument: at org.eclipse.core.runtime.Assert.isNotNull(Assert.java:88) at org.eclipse.core.runtime.Assert.isNotNull(Assert.java:76) at org.eclipse.gef.editparts.AbstractEditPart.addChild(AbstractEditPart.java:203) at org.eclipse.gef.editparts.AbstractEditPart.refreshChildren(AbstractEditPart.java:781) at org.eclipse.gef.editparts.AbstractEditPart.refresh(AbstractEditPart.java:726) at org.eclipse.gef.editparts.AbstractGraphicalEditPart.refresh(AbstractGraphicalEditPart.java:644) at org.eclipse.gef.editparts.AbstractEditPart.addNotify(AbstractEditPart.java:253) at org.eclipse.gef.editparts.AbstractGraphicalEditPart.addNotify(AbstractGraphicalEditPart.java:223) at org.fortiss.tooling.base.ui.editpart.PositionedEditPartBase.addNotify(PositionedEditPartBase.java:270) at org.eclipse.gef.editparts.AbstractEditPart.addChild(AbstractEditPart.java:212) at org.eclipse.gef.editparts.AbstractEditPart.refreshChildren(AbstractEditPart.java:781) at org.eclipse.gef.editparts.AbstractEditPart.refresh(AbstractEditPart.java:726) at org.eclipse.gef.editparts.AbstractGraphicalEditPart.refresh(AbstractGraphicalEditPart.java:644) at org.eclipse.gef.editparts.AbstractEditPart.addNotify(AbstractEditPart.java:253) at org.eclipse.gef.editparts.AbstractGraphicalEditPart.addNotify(AbstractGraphicalEditPart.java:223) at org.eclipse.gef.editparts.AbstractEditPart.addChild(AbstractEditPart.java:212) at org.eclipse.gef.editparts.SimpleRootEditPart.setContents(SimpleRootEditPart.java:105) at org.eclipse.gef.ui.parts.AbstractEditPartViewer.setContents(AbstractEditPartViewer.java:617) at org.eclipse.gef.ui.parts.AbstractEditPartViewer.setContents(AbstractEditPartViewer.java:626) at org.fortiss.tooling.base.ui.editor.CommonDiagramEditorBase.createPartControl(CommonDiagramEditorBase.java:308) at org.fortiss.tooling.base.ui.editor.DiagramEditorBase.createPartControl(DiagramEditorBase.java:1) at org.fortiss.af3.platform.ui.editor.PlatformArchitectureEditor.createPartControl(PlatformArchitectureEditor.java:1) at org.eclipse.ui.part.MultiPageEditorPart.addPage(MultiPageEditorPart.java:244) at org.eclipse.ui.part.MultiPageEditorPart.addPage(MultiPageEditorPart.java:214) at org.fortiss.tooling.kernel.ui.internal.editor.ExtendableMultiPageEditor.createPages(ExtendableMultiPageEditor.java:200) at org.eclipse.ui.part.MultiPageEditorPart.createPartControl(MultiPageEditorPart.java:351) at org.eclipse.ui.internal.e4.compatibility.CompatibilityPart.createPartControl(CompatibilityPart.java:156) at org.eclipse.ui.internal.e4.compatibility.CompatibilityEditor.createPartControl(CompatibilityEditor.java:102) at org.eclipse.ui.internal.e4.compatibility.CompatibilityPart.create(CompatibilityPart.java:367) 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:566) at org.eclipse.e4.core.internal.di.MethodRequestor.execute(MethodRequestor.java:58) at org.eclipse.e4.core.internal.di.InjectorImpl.processAnnotated(InjectorImpl.java:1001) at org.eclipse.e4.core.internal.di.InjectorImpl.processAnnotated(InjectorImpl.java:966) at org.eclipse.e4.core.internal.di.InjectorImpl.internalInject(InjectorImpl.java:139) at org.eclipse.e4.core.internal.di.InjectorImpl.internalMake(InjectorImpl.java:411) at org.eclipse.e4.core.internal.di.InjectorImpl.make(InjectorImpl.java:333) at org.eclipse.e4.core.contexts.ContextInjectionFactory.make(ContextInjectionFactory.java:193) at org.eclipse.e4.ui.internal.workbench.ReflectionContributionFactory.createFromBundle(ReflectionContributionFactory.java:108) at org.eclipse.e4.ui.internal.workbench.ReflectionContributionFactory.doCreate(ReflectionContributionFactory.java:77) at org.eclipse.e4.ui.internal.workbench.ReflectionContributionFactory.create(ReflectionContributionFactory.java:59) 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:1015) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.safeCreateGui(PartRenderingEngine.java:675) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.safeCreateGui(PartRenderingEngine.java:781) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.access$0(PartRenderingEngine.java:752) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$2.run(PartRenderingEngine.java:746) at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:45) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.createGui(PartRenderingEngine.java:730) at org.eclipse.e4.ui.internal.workbench.PartServiceImpl$1.handleEvent(PartServiceImpl.java:107) 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:147) at org.eclipse.swt.widgets.Display.syncExec(Display.java:4580) 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:233) 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.setSelectedElement(ElementContainerImpl.java:177) at org.eclipse.e4.ui.internal.workbench.ModelServiceImpl.showElementInWindow(ModelServiceImpl.java:641) at org.eclipse.e4.ui.internal.workbench.ModelServiceImpl.bringToTop(ModelServiceImpl.java:605) at org.eclipse.e4.ui.internal.workbench.PartServiceImpl.delegateBringToTop(PartServiceImpl.java:791) at org.eclipse.e4.ui.internal.workbench.PartServiceImpl.bringToTop(PartServiceImpl.java:404) at org.eclipse.e4.ui.internal.workbench.PartServiceImpl.showPart(PartServiceImpl.java:1240) at org.eclipse.ui.internal.WorkbenchPage.busyOpenEditor(WorkbenchPage.java:3317) at org.eclipse.ui.internal.WorkbenchPage.lambda$9(WorkbenchPage.java:3216) at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:72) at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:3213) at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:3177) at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:3158) at org.fortiss.tooling.kernel.ui.internal.ModelEditorBindingService.openInEditor(ModelEditorBindingService.java:163) at org.fortiss.tooling.kernel.ui.internal.ModelEditorBindingService.openInEditor(ModelEditorBindingService.java:156) at org.fortiss.tooling.kernel.ui.internal.ModelEditorBindingService.openInEditor(ModelEditorBindingService.java:122) at org.fortiss.tooling.kernel.ui.internal.views.DoubleClick.doubleClick(DoubleClick.java:63) at org.eclipse.jface.viewers.StructuredViewer$1.run(StructuredViewer.java:833) 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:176) at org.eclipse.jface.viewers.StructuredViewer.fireDoubleClick(StructuredViewer.java:830) at org.eclipse.jface.viewers.AbstractTreeViewer.handleDoubleSelect(AbstractTreeViewer.java:1518) at org.eclipse.jface.viewers.StructuredViewer$4.widgetDefaultSelected(StructuredViewer.java:1260) at org.eclipse.jface.util.OpenStrategy.fireDefaultSelectionEvent(OpenStrategy.java:252) at org.eclipse.jface.util.OpenStrategy.access$0(OpenStrategy.java:250) at org.eclipse.jface.util.OpenStrategy$1.handleEvent(OpenStrategy.java:309) at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:89) at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4131) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1055) at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3944) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3547) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$5.run(PartRenderingEngine.java:1173) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:339) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1062) at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:156) at org.eclipse.ui.internal.Workbench.lambda$3(Workbench.java:636) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:339) at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:563) at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:151) at org.fortiss.af3.rcapplication.AF3Application.start(AF3Application.java:49) at org.eclipse.equinox.internal.apEclipseAppHandle.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:400) 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:566) at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:659) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:595) at org.eclipse.equinox.launcher.Main.run(Main.java:1501) at org.eclipse.equinox.launcher.Main.main(Main.java:1474) !ENTRY org.eclipse.e4.ui.workbench 4 0 2019-04-03 16:21:06.982 !MESSAGE !STACK 0 org.eclipse.core.runtime.AssertionFailedException: assertion failed: at org.eclipse.core.runtime.Assert.isTrue(Assert.java:113) at org.eclipse.core.runtime.Assert.isTrue(Assert.java:99) at org.eclipse.ui.part.MultiPageEditorPart.setActivePage(MultiPageEditorPart.java:1078) at org.eclipse.ui.part.MultiPageEditorPart.createPartControl(MultiPageEditorPart.java:355) at org.eclipse.ui.internal.e4.compatibility.CompatibilityPart.createPartControl(CompatibilityPart.java:156) at org.eclipse.ui.internal.e4.compatibility.CompatibilityEditor.createPartControl(CompatibilityEditor.java:102) at org.eclipse.ui.internal.e4.compatibility.CompatibilityPart.create(CompatibilityPart.java:367) 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:566) at org.eclipse.e4.core.internal.di.MethodRequestor.execute(MethodRequestor.java:58) at org.eclipse.e4.core.internal.di.InjectorImpl.processAnnotated(InjectorImpl.java:1001) at org.eclipse.e4.core.internal.di.InjectorImpl.processAnnotated(InjectorImpl.java:966) at org.eclipse.e4.core.internal.di.InjectorImpl.internalInject(InjectorImpl.java:139) at org.eclipse.e4.core.internal.di.InjectorImpl.internalMake(InjectorImpl.java:411) at org.eclipse.e4.core.internal.di.InjectorImpl.make(InjectorImpl.java:333) at org.eclipse.e4.core.contexts.ContextInjectionFactory.make(ContextInjectionFactory.java:193) at org.eclipse.e4.ui.internal.workbench.ReflectionContributionFactory.createFromBundle(ReflectionContributionFactory.java:108) at org.eclipse.e4.ui.internal.workbench.ReflectionContributionFactory.doCreate(ReflectionContributionFactory.java:77) at org.eclipse.e4.ui.internal.workbench.ReflectionContributionFactory.create(ReflectionContributionFactory.java:59) 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:1015) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.safeCreateGui(PartRenderingEngine.java:675) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.safeCreateGui(PartRenderingEngine.java:781) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.access$0(PartRenderingEngine.java:752) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$2.run(PartRenderingEngine.java:746) at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:45) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.createGui(PartRenderingEngine.java:730) at org.eclipse.e4.ui.internal.workbench.PartServiceImpl$1.handleEvent(PartServiceImpl.java:107) 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:147) at org.eclipse.swt.widgets.Display.syncExec(Display.java:4580) 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:233) 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.setSelectedElement(ElementContainerImpl.java:177) at org.eclipse.e4.ui.internal.workbench.ModelServiceImpl.showElementInWindow(ModelServiceImpl.java:641) at org.eclipse.e4.ui.internal.workbench.ModelServiceImpl.bringToTop(ModelServiceImpl.java:605) at org.eclipse.e4.ui.internal.workbench.PartServiceImpl.delegateBringToTop(PartServiceImpl.java:791) at org.eclipse.e4.ui.internal.workbench.PartServiceImpl.bringToTop(PartServiceImpl.java:404) at org.eclipse.e4.ui.internal.workbench.PartServiceImpl.showPart(PartServiceImpl.java:1240) at org.eclipse.ui.internal.WorkbenchPage.busyOpenEditor(WorkbenchPage.java:3317) at org.eclipse.ui.internal.WorkbenchPage.lambda$9(WorkbenchPage.java:3216) at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:72) at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:3213) at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:3177) at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:3158) at org.fortiss.tooling.kernel.ui.internal.ModelEditorBindingService.openInEditor(ModelEditorBindingService.java:163) at org.fortiss.tooling.kernel.ui.internal.ModelEditorBindingService.openInEditor(ModelEditorBindingService.java:156) at org.fortiss.tooling.kernel.ui.internal.ModelEditorBindingService.openInEditor(ModelEditorBindingService.java:122) at org.fortiss.tooling.kernel.ui.internal.views.DoubleClick.doubleClick(DoubleClick.java:63) at org.eclipse.jface.viewers.StructuredViewer$1.run(StructuredViewer.java:833) 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:176) at org.eclipse.jface.viewers.StructuredViewer.fireDoubleClick(StructuredViewer.java:830) at org.eclipse.jface.viewers.AbstractTreeViewer.handleDoubleSelect(AbstractTreeViewer.java:1518) at org.eclipse.jface.viewers.StructuredViewer$4.widgetDefaultSelected(StructuredViewer.java:1260) at org.eclipse.jface.util.OpenStrategy.fireDefaultSelectionEvent(OpenStrategy.java:252) at org.eclipse.jface.util.OpenStrategy.access$0(OpenStrategy.java:250) at org.eclipse.jface.util.OpenStrategy$1.handleEvent(OpenStrategy.java:309) at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:89) at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4131) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1055) at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3944) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3547) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$5.run(PartRenderingEngine.java:1173) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:339) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1062) at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:156) at org.eclipse.ui.internal.Workbench.lambda$3(Workbench.java:636) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:339) at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:563) at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:151) at org.fortiss.af3.rcapplication.AF3Application.start(AF3Application.java:49) at org.eclipse.equinox.internal.apEclipseAppHandle.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:400) 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:566) at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:659) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:595) at org.eclipse.equinox.launcher.Main.run(Main.java:1501) at org.eclipse.equinox.launcher.Main.main(Main.java:1474) !ENTRY org.eclipse.e4.ui.workbench 4 2 2019-04-03 16:21:07.018 !MESSAGE Problems occurred when invoking code from plug-in: "org.eclipse.e4.ui.workbench". !STACK 0 org.eclipse.core.runtime.AssertionFailedException: assertion failed: This contributor may only be used for ExtendableMultiPageEditors! at org.eclipse.core.runtime.Assert.isTrue(Assert.java:113) at org.fortiss.tooling.kernel.ui.internal.editor.ActionBarContributor.setActiveEditor(ActionBarContributor.java:42) at org.eclipse.ui.internal.EditorActionBars.partChanged(EditorActionBars.java:343) at org.eclipse.ui.internal.WorkbenchPage.updateActivations(WorkbenchPage.java:325) at org.eclipse.ui.internal.WorkbenchPage.access$2(WorkbenchPage.java:306) at org.eclipse.ui.internal.WorkbenchPage$E4PartListener.partActivated(WorkbenchPage.java:213) at org.eclipse.e4.ui.internal.workbench.PartServiceImpl$3.run(PartServiceImpl.java:253) at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:45) at org.eclipse.e4.ui.internal.workbench.PartServiceImpl.firePartActivated(PartServiceImpl.java:250) at org.eclipse.e4.ui.internal.workbench.PartServiceImpl.activate(PartServiceImpl.java:775) at org.eclipse.e4.ui.internal.workbench.PartServiceImpl.activate(PartServiceImpl.java:684) at org.eclipse.e4.ui.internal.workbench.PartServiceImpl.activate(PartServiceImpl.java:679) at org.eclipse.ui.internal.WorkbenchPage.busyOpenEditor(WorkbenchPage.java:3325) at org.eclipse.ui.internal.WorkbenchPage.lambda$9(WorkbenchPage.java:3216) at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:72) at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:3213) at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:3177) at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:3158) at org.fortiss.tooling.kernel.ui.internal.ModelEditorBindingService.openInEditor(ModelEditorBindingService.java:163) at org.fortiss.tooling.kernel.ui.internal.ModelEditorBindingService.openInEditor(ModelEditorBindingService.java:156) at org.fortiss.tooling.kernel.ui.internal.ModelEditorBindingService.openInEditor(ModelEditorBindingService.java:122) at org.fortiss.tooling.kernel.ui.internal.views.DoubleClick.doubleClick(DoubleClick.java:63) at org.eclipse.jface.viewers.StructuredViewer$1.run(StructuredViewer.java:833) 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:176) at org.eclipse.jface.viewers.StructuredViewer.fireDoubleClick(StructuredViewer.java:830) at org.eclipse.jface.viewers.AbstractTreeViewer.handleDoubleSelect(AbstractTreeViewer.java:1518) at org.eclipse.jface.viewers.StructuredViewer$4.widgetDefaultSelected(StructuredViewer.java:1260) at org.eclipse.jface.util.OpenStrategy.fireDefaultSelectionEvent(OpenStrategy.java:252) at org.eclipse.jface.util.OpenStrategy.access$0(OpenStrategy.java:250) at org.eclipse.jface.util.OpenStrategy$1.handleEvent(OpenStrategy.java:309) at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:89) at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4131) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1055) at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3944) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3547) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$5.run(PartRenderingEngine.java:1173) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:339) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1062) at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:156) at org.eclipse.ui.internal.Workbench.lambda$3(Workbench.java:636) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:339) at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:563) at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:151) at org.fortiss.af3.rcapplication.AF3Application.start(AF3Application.java:49) at org.eclipse.equinox.internal.apEclipseAppHandle.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:400) 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:566) at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:659) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:595) at org.eclipse.equinox.launcher.Main.run(Main.java:1501) at org.eclipse.equinox.launcher.Main.main(Main.java:1474) !ENTRY org.eclipse.e4.ui.workbench 4 0 2019-04-03 16:21:07.020 !MESSAGE An exception occurred while notifying part listeners !STACK 0 org.eclipse.core.runtime.AssertionFailedException: assertion failed: This contributor may only be used for ExtendableMultiPageEditors! at org.eclipse.core.runtime.Assert.isTrue(Assert.java:113) at org.fortiss.tooling.kernel.ui.internal.editor.ActionBarContributor.setActiveEditor(ActionBarContributor.java:42) at org.eclipse.ui.internal.EditorActionBars.partChanged(EditorActionBars.java:343) at org.eclipse.ui.internal.WorkbenchPage.updateActivations(WorkbenchPage.java:325) at org.eclipse.ui.internal.WorkbenchPage.access$2(WorkbenchPage.java:306) at org.eclipse.ui.internal.WorkbenchPage$E4PartListener.partActivated(WorkbenchPage.java:213) at org.eclipse.e4.ui.internal.workbench.PartServiceImpl$3.run(PartServiceImpl.java:253) at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:45) at org.eclipse.e4.ui.internal.workbench.PartServiceImpl.firePartActivated(PartServiceImpl.java:250) at org.eclipse.e4.ui.internal.workbench.PartServiceImpl.activate(PartServiceImpl.java:775) at org.eclipse.e4.ui.internal.workbench.PartServiceImpl.activate(PartServiceImpl.java:684) at org.eclipse.e4.ui.internal.workbench.PartServiceImpl.activate(PartServiceImpl.java:679) at org.eclipse.ui.internal.WorkbenchPage.busyOpenEditor(WorkbenchPage.java:3325) at org.eclipse.ui.internal.WorkbenchPage.lambda$9(WorkbenchPage.java:3216) at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:72) at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:3213) at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:3177) at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:3158) at org.fortiss.tooling.kernel.ui.internal.ModelEditorBindingService.openInEditor(ModelEditorBindingService.java:163) at org.fortiss.tooling.kernel.ui.internal.ModelEditorBindingService.openInEditor(ModelEditorBindingService.java:156) at org.fortiss.tooling.kernel.ui.internal.ModelEditorBindingService.openInEditor(ModelEditorBindingService.java:122) at org.fortiss.tooling.kernel.ui.internal.views.DoubleClick.doubleClick(DoubleClick.java:63) at org.eclipse.jface.viewers.StructuredViewer$1.run(StructuredViewer.java:833) 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:176) at org.eclipse.jface.viewers.StructuredViewer.fireDoubleClick(StructuredViewer.java:830) at org.eclipse.jface.viewers.AbstractTreeViewer.handleDoubleSelect(AbstractTreeViewer.java:1518) at org.eclipse.jface.viewers.StructuredViewer$4.widgetDefaultSelected(StructuredViewer.java:1260) at org.eclipse.jface.util.OpenStrategy.fireDefaultSelectionEvent(OpenStrategy.java:252) at org.eclipse.jface.util.OpenStrategy.access$0(OpenStrategy.java:250) at org.eclipse.jface.util.OpenStrategy$1.handleEvent(OpenStrategy.java:309) at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:89) at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4131) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1055) at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3944) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3547) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$5.run(PartRenderingEngine.java:1173) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:339) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1062) at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:156) at org.eclipse.ui.internal.Workbench.lambda$3(Workbench.java:636) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:339) at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:563) at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:151) at org.fortiss.af3.rcapplication.AF3Application.start(AF3Application.java:49) at org.eclipse.equinox.internal.apEclipseAppHandle.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:400) 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:566) at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:659) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:595) at org.eclipse.equinox.launcher.Main.run(Main.java:1501) at org.eclipse.equinox.launcher.Main.main(Main.java:1474)
(from redmine: issue id 3701, created on 2019-04-03, closed on 2019-04-04)