NPE beim Validieren einer Darstellung/Ansicht
Beim Überprüfen des EMF Modells wird eine NPE geworfen.
java.lang.NullPointerException: Cannot invoke "org.eclipse.emf.ecore.EObject.eClass()" because "child" is null
at org.eclipse.emf.ecore.util.Diagnostician.validate(Diagnostician.java:200)
at org.eclipse.emf.ecore.util.Diagnostician.validate(Diagnostician.java:130)
at de.bsvrz.buv.plugin.darstellung.util.DarstellungValidator.validiereInstallierteDarstellungsobjekte(DarstellungValidator.java:114)
at de.bsvrz.buv.plugin.darstellung.util.DarstellungValidator.validiere(DarstellungValidator.java:246)
at de.bsvrz.buv.plugin.dopositionierer.problems.ProblemsView$StatusContentProvider.getElements(ProblemsView.java:104)
at org.eclipse.jface.viewers.StructuredViewer.getRawChildren(StructuredViewer.java:947)
at org.eclipse.jface.viewers.ColumnViewer.getRawChildren(ColumnViewer.java:704)
at org.eclipse.jface.viewers.AbstractTreeViewer.getRawChildren(AbstractTreeViewer.java:1409)
at org.eclipse.jface.viewers.TreeViewer.getRawChildren(TreeViewer.java:350)
at org.eclipse.jface.viewers.StructuredViewer.getFilteredChildren(StructuredViewer.java:850)
at org.eclipse.jface.viewers.AbstractTreeViewer.getSortedChildren(AbstractTreeViewer.java:624)
at org.eclipse.jface.viewers.AbstractTreeViewer.createChildren(AbstractTreeViewer.java:826)
at org.eclipse.jface.viewers.TreeViewer.createChildren(TreeViewer.java:611)
at org.eclipse.jface.viewers.AbstractTreeViewer.createChildren(AbstractTreeViewer.java:777)
at org.eclipse.jface.viewers.AbstractTreeViewer.internalInitializeTree(AbstractTreeViewer.java:1597)
at org.eclipse.jface.viewers.TreeViewer.internalInitializeTree(TreeViewer.java:787)
at org.eclipse.jface.viewers.AbstractTreeViewer.lambda$1(AbstractTreeViewer.java:1582)
at org.eclipse.jface.viewers.StructuredViewer.preservingSelection(StructuredViewer.java:1398)
at org.eclipse.jface.viewers.TreeViewer.preservingSelection(TreeViewer.java:365)
at org.eclipse.jface.viewers.StructuredViewer.preservingSelection(StructuredViewer.java:1359)
at org.eclipse.jface.viewers.AbstractTreeViewer.inputChanged(AbstractTreeViewer.java:1576)
at org.eclipse.jface.viewers.ContentViewer.setInput(ContentViewer.java:282)
at org.eclipse.jface.viewers.StructuredViewer.setInput(StructuredViewer.java:1632)
at de.bsvrz.buv.plugin.dopositionierer.problems.ProblemsView$ISelectionListenerImplementation.selectionChanged(ProblemsView.java:81)
at org.eclipse.ui.internal.e4.compatibility.SelectionService.notifyListeners(SelectionService.java:266)
at org.eclipse.ui.internal.e4.compatibility.SelectionService.handleSelectionChanged(SelectionService.java:98)
at org.eclipse.ui.internal.e4.compatibility.SelectionService.lambda$0(SelectionService.java:72)
at org.eclipse.e4.ui.internal.workbench.SelectionAggregator$1.run(SelectionAggregator.java:123)
at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:45)
at org.eclipse.e4.ui.internal.workbench.SelectionAggregator.notifyListeners(SelectionAggregator.java:120)
at org.eclipse.e4.ui.internal.workbench.SelectionAggregator$5.lambda$0(SelectionAggregator.java:220)
at org.eclipse.e4.core.contexts.RunAndTrack.runExternalCode(RunAndTrack.java:59)
at org.eclipse.e4.ui.internal.workbench.SelectionAggregator$5.changed(SelectionAggregator.java:220)
at org.eclipse.e4.core.internal.contexts.TrackableComputationExt.update(TrackableComputationExt.java:105)
at org.eclipse.e4.core.internal.contexts.EclipseContext.processScheduled(EclipseContext.java:356)
at org.eclipse.e4.core.internal.contexts.EclipseContext.set(EclipseContext.java:372)
at org.eclipse.e4.ui.internal.workbench.SelectionServiceImpl.setSelection(SelectionServiceImpl.java:34)
at org.eclipse.ui.internal.e4.compatibility.CompatibilityPart.selectionChanged(CompatibilityPart.java:471)
at org.eclipse.jface.viewers.Viewer$1.run(Viewer.java:151)
at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:45)
at org.eclipse.jface.util.SafeRunnable.run(SafeRunnable.java:174)
at org.eclipse.jface.viewers.Viewer.fireSelectionChanged(Viewer.java:148)
at org.eclipse.jface.viewers.StructuredViewer.updateSelection(StructuredViewer.java:2130)
at org.eclipse.jface.viewers.StructuredViewer.handleSelect(StructuredViewer.java:1176)
at org.eclipse.jface.viewers.StructuredViewer$4.widgetSelected(StructuredViewer.java:1205)
at org.eclipse.jface.util.OpenStrategy.fireSelectionEvent(OpenStrategy.java:263)
at org.eclipse.jface.util.OpenStrategy$1.handleEvent(OpenStrategy.java:421)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:89)
at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4243)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1060)
at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4060)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3632)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$5.run(PartRenderingEngine.java:1154)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:338)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1045)
at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:155)
at org.eclipse.ui.internal.Workbench.lambda$3(Workbench.java:644)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:338)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:551)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:156)
at de.bsvrz.buv.rw.rw.RahmenwerkApplication.start(RahmenwerkApplication.java:115)
at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:203)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:136)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104)
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:77)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:568)
at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:659)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:596)
at org.eclipse.equinox.launcher.Main.run(Main.java:1467)