Diagram View does not display a diagram

eclipse.buildId=unknown
java.version=1.7.0_75
java.vendor=Oracle Corporation
BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US
Framework arguments:  -product com.jboss.devstudio.core.product
Command-line arguments:  -os linux -ws gtk -arch x86_64 -product com.jboss.devstudio.core.product

org.eclipse.e4.ui.workbench
Error
Tue Apr 07 14:09:18 CEST 2015


java.lang.NullPointerException
	at org.fusesource.ide.fabric8.ui.navigator.ContainerNode.getChildrenGraph(ContainerNode.java:154)
	at org.fusesource.ide.camel.editor.views.diagram.NodeGraphContentProvider.getElements(NodeGraphContentProvider.java:77)
	at org.eclipse.zest.core.viewers.internal.GraphModelEntityFactory.doBuildGraph(GraphModelEntityFactory.java:57)
	at org.eclipse.zest.core.viewers.internal.AbstractStylingModelFactory.refreshGraph(AbstractStylingModelFactory.java:305)
	at org.eclipse.zest.core.viewers.internal.AbstractStructuredGraphViewer.internalRefresh(AbstractStructuredGraphViewer.java:323)
	at org.eclipse.jface.viewers.StructuredViewer$7.run(StructuredViewer.java:1500)
	at org.eclipse.jface.viewers.StructuredViewer.preservingSelection(StructuredViewer.java:1436)
	at org.eclipse.jface.viewers.StructuredViewer.preservingSelection(StructuredViewer.java:1397)
	at org.eclipse.jface.viewers.StructuredViewer.refresh(StructuredViewer.java:1497)
	at org.eclipse.jface.viewers.StructuredViewer.refresh(StructuredViewer.java:1456)
	at org.eclipse.jface.viewers.ContentViewer.setContentProvider(ContentViewer.java:263)
	at org.eclipse.jface.viewers.StructuredViewer.setContentProvider(StructuredViewer.java:1650)
	at org.eclipse.zest.core.viewers.GraphViewer.setContentProvider(GraphViewer.java:176)
	at org.fusesource.ide.camel.editor.views.diagram.DiagramView.updateGraph(DiagramView.java:223)
	at org.fusesource.ide.camel.editor.views.diagram.DiagramView$2.selectionChanged(DiagramView.java:145)
	at org.eclipse.ui.internal.e4.compatibility.SelectionService.notifyListeners(SelectionService.java:218)
	at org.eclipse.ui.internal.e4.compatibility.SelectionService.handleSelectionChanged(SelectionService.java:107)
	at org.eclipse.ui.internal.e4.compatibility.SelectionService.access$0(SelectionService.java:91)
	at org.eclipse.ui.internal.e4.compatibility.SelectionService$1.selectionChanged(SelectionService.java:66)
	at org.eclipse.e4.ui.internal.workbench.SelectionAggregator$2.run(SelectionAggregator.java:125)
	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
	at org.eclipse.e4.ui.internal.workbench.SelectionAggregator.notifyListeners(SelectionAggregator.java:122)
	at org.eclipse.e4.ui.internal.workbench.SelectionAggregator.access$5(SelectionAggregator.java:119)
	at org.eclipse.e4.ui.internal.workbench.SelectionAggregator$7$1.run(SelectionAggregator.java:232)
	at org.eclipse.e4.core.contexts.RunAndTrack.runExternalCode(RunAndTrack.java:56)
	at org.eclipse.e4.ui.internal.workbench.SelectionAggregator$7.changed(SelectionAggregator.java:229)
	at org.eclipse.e4.core.internal.contexts.TrackableComputationExt.update(TrackableComputationExt.java:110)
	at org.eclipse.e4.core.internal.contexts.EclipseContext.processScheduled(EclipseContext.java:338)
	at org.eclipse.e4.core.internal.contexts.EclipseContext.set(EclipseContext.java:352)
	at org.eclipse.e4.ui.internal.workbench.SelectionServiceImpl.setSelection(SelectionServiceImpl.java:31)
	at org.eclipse.ui.internal.e4.compatibility.CompatibilityPart.selectionChanged(CompatibilityPart.java:424)
	at org.eclipse.jface.viewers.Viewer$2.run(Viewer.java:163)
	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
	at org.eclipse.ui.internal.JFaceUtil$1.run(JFaceUtil.java:50)
	at org.eclipse.jface.util.SafeRunnable.run(SafeRunnable.java:178)
	at org.eclipse.jface.viewers.Viewer.fireSelectionChanged(Viewer.java:160)
	at org.eclipse.jface.viewers.StructuredViewer.updateSelection(StructuredViewer.java:2171)
	at org.eclipse.jface.viewers.StructuredViewer.handleSelect(StructuredViewer.java:1202)
	at org.eclipse.ui.navigator.CommonViewer.handleSelect(CommonViewer.java:478)
	at org.eclipse.jface.viewers.StructuredViewer$4.widgetSelected(StructuredViewer.java:1231)
	at org.eclipse.jface.util.OpenStrategy.fireSelectionEvent(OpenStrategy.java:242)
	at org.eclipse.jface.util.OpenStrategy.access$4(OpenStrategy.java:236)
	at org.eclipse.jface.util.OpenStrategy$1.handleEvent(OpenStrategy.java:408)
	at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
	at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4454)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1388)
	at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3799)
	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3409)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$9.run(PartRenderingEngine.java:1151)
	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1032)
	at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:148)
	at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:636)
	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
	at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:579)
	at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:150)
	at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:135)
	at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)
	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:134)
	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:380)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:235)
	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:648)
	at org.eclipse.equinox.launcher.Main.basicRun(Main.java:603)
	at org.eclipse.equinox.launcher.Main.run(Main.java:1465)
	at org.eclipse.equinox.launcher.Main.main(Main.java:1438)