java.lang.AssertionError at org.netbeans.modules.uml.drawingarea.UMLDiagramTopComponent.(UMLDiagramTopComponent.java:261) at org.netbeans.modules.uml.drawingarea.UMLDiagramManager.showDiagram(UMLDiagramManager.java:514) at org.netbeans.modules.uml.drawingarea.UMLDiagramManager.openDiagram(UMLDiagramManager.java:138) at org.netbeans.modules.uml.ui.support.DiagramBuilder.navigateToDiagram(DiagramBuilder.java:208) at org.netbeans.modules.uml.ui.support.presentationnavigation.JNavigationTreeTable.handleNavigation(JNavigationTreeTable.java:169) at org.netbeans.modules.uml.ui.support.presentationnavigation.JNavigationTreeTable$TreeMouseHandler.mousePressed(JNavigationTreeTable.java:242) at java.awt.AWTEventMulticaster.mousePressed(AWTEventMulticaster.java:263) at java.awt.AWTEventMulticaster.mousePressed(AWTEventMulticaster.java:262) at java.awt.Component.processMouseEvent(Component.java:6264) at javax.swing.JComponent.processMouseEvent(JComponent.java:3267) at java.awt.Component.processEvent(Component.java:6032) at java.awt.Container.processEvent(Container.java:2041) at java.awt.Component.dispatchEventImpl(Component.java:4630) at java.awt.Container.dispatchEventImpl(Container.java:2099) at java.awt.Component.dispatchEvent(Component.java:4460) at java.awt.LightweightDispatcher.retargetMouseEvent(LightweightDispatcher.java:4577) at java.awt.LightweightDispatcher.processMouseEvent(LightweightDispatcher.java:4235) at java.awt.LightweightDispatcher.dispatchEvent(LightweightDispatcher.java:4168) at java.awt.Container.dispatchEventImpl(Container.java:2085) at java.awt.Window.dispatchEventImpl(Window.java:2478) at java.awt.Component.dispatchEvent(Component.java:4460) at java.awt.EventQueue.dispatchEvent(EventQueue.java:599) at org.netbeans.core.TimableEventQueue.dispatchEvent(TimableEventQueue.java:137) at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:269) at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:184) at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:178) at java.awt.Dialog$1.run(Dialog.java:1046) at java.awt.Dialog$3.run(Dialog.java:1098) at java.security.AccessController.doPrivileged(AccessController.java:0) at java.awt.Dialog.show(Dialog.java:1096) at org.netbeans.core.windows.services.NbPresenter.superShow(NbPresenter.java:1006) at org.netbeans.core.windows.services.NbPresenter.doShow(NbPresenter.java:1040) at org.netbeans.core.windows.services.NbPresenter.run(NbPresenter.java:1028) at org.netbeans.core.windows.services.NbPresenter.run(NbPresenter.java:121) at org.openide.util.Mutex.doEventAccess(Mutex.java:1361) at org.openide.util.Mutex.readAccess(Mutex.java:271) at org.netbeans.core.windows.services.NbPresenter.show(NbPresenter.java:1013) at java.awt.Component.show(Component.java:1563) at java.awt.Component.setVisible(Component.java:1515) at java.awt.Window.setVisible(Window.java:842) at java.awt.Dialog.setVisible(Dialog.java:986) at org.netbeans.modules.uml.ui.swing.commondialogs.SwingNavigationDialog.display(SwingNavigationDialog.java:100) at org.netbeans.modules.uml.ui.support.DiagramAndPresentationNavigator.navigateToPresentationTarget(DiagramAndPresentationNavigator.java:153) at org.netbeans.modules.uml.ui.support.DiagramAndPresentationNavigator.handleNavigation(DiagramAndPresentationNavigator.java:185) at org.netbeans.modules.uml.ui.products.ad.projecttreedefaultengine.ADProjectTreeEngine.handleDoubleClick(ADProjectTreeEngine.java:3457) at org.netbeans.modules.uml.ui.products.ad.projecttreedefaultengine.ADProjectTreeEngine.onNodeDoubleClick(ADProjectTreeEngine.java:3429) at org.netbeans.modules.uml.ui.products.ad.projecttreedefaultengine.ADProjectTreeEngine$ProjectTreeListener.onDoubleClick(ADProjectTreeEngine.java:3745) at sun.reflect.NativeMethodAccessorImpl.invoke0(NativeMethodAccessorImpl.java:0) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.netbeans.modules.uml.core.eventframework.EventFunctor.invokeMethod(EventFunctor.java:240) at org.netbeans.modules.uml.core.eventframework.EventFunctor.execute(EventFunctor.java:126) at org.netbeans.modules.uml.core.eventframework.EventManager.notifyListeners(EventManager.java:182) at org.netbeans.modules.uml.ui.controls.projecttree.ProjectTreeEventDispatcherImpl.fireDoubleClick(ProjectTreeEventDispatcherImpl.java:385) at org.netbeans.modules.uml.project.ui.nodes.UMLElementNode$ModelElementOpen.open(UMLElementNode.java:921) at org.openide.actions.OpenAction.performAction(OpenAction.java:84) at org.openide.util.actions.NodeAction$DelegateAction$1.run(NodeAction.java:586) at org.openide.util.actions.ActionInvoker$1.run(ActionInvoker.java:95) at org.openide.util.actions.ActionInvoker.doPerformAction(ActionInvoker.java:116) at org.openide.util.actions.ActionInvoker.invokeAction(ActionInvoker.java:99) at org.openide.util.actions.NodeAction$DelegateAction.actionPerformed(NodeAction.java:583) at org.openide.explorer.view.TreeView$PopupSupport.mouseClicked(TreeView.java:1565) at java.awt.AWTEventMulticaster.mouseClicked(AWTEventMulticaster.java:253) at java.awt.AWTEventMulticaster.mouseClicked(AWTEventMulticaster.java:252) at java.awt.AWTEventMulticaster.mouseClicked(AWTEventMulticaster.java:252) at java.awt.AWTEventMulticaster.mouseClicked(AWTEventMulticaster.java:252) at java.awt.Component.processMouseEvent(Component.java:6270) at javax.swing.JComponent.processMouseEvent(JComponent.java:3267) at java.awt.Component.processEvent(Component.java:6032) at java.awt.Container.processEvent(Container.java:2041) at java.awt.Component.dispatchEventImpl(Component.java:4630) at java.awt.Container.dispatchEventImpl(Container.java:2099) at java.awt.Component.dispatchEvent(Component.java:4460) at java.awt.LightweightDispatcher.retargetMouseEvent(LightweightDispatcher.java:4577) at java.awt.LightweightDispatcher.processMouseEvent(LightweightDispatcher.java:4247) at java.awt.LightweightDispatcher.dispatchEvent(LightweightDispatcher.java:4168) at java.awt.Container.dispatchEventImpl(Container.java:2085) at java.awt.Window.dispatchEventImpl(Window.java:2478) at java.awt.Component.dispatchEvent(Component.java:4460) at java.awt.EventQueue.dispatchEvent(EventQueue.java:599) at org.netbeans.core.TimableEventQueue.dispatchEvent(TimableEventQueue.java:137) at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:269) at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:184) at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:174) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:169) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:161) at java.awt.EventDispatchThread.run(EventDispatchThread.java:122)