java.lang.AssertionError: Index of v has been computed by recomputeIndexes at org.openide.explorer.view.VisualizerChildren.getIndex(VisualizerChildren.java:159) at org.openide.explorer.view.VisualizerNode.getIndex(VisualizerNode.java:278) at javax.swing.tree.DefaultTreeModel.getIndexOfChild(DefaultTreeModel.java:142) at javax.swing.tree.FixedHeightLayoutCache.getRowForPath(FixedHeightLayoutCache.java:217) at javax.swing.tree.AbstractLayoutCache.getRowsForPaths(AbstractLayoutCache.java:443) at javax.swing.tree.DefaultTreeSelectionModel.resetRowSelection(DefaultTreeSelectionModel.java:760) at javax.swing.tree.DefaultTreeSelectionModel.setSelectionPaths(DefaultTreeSelectionModel.java:284) at org.openide.explorer.view.BeanTreeView.showSelection(BeanTreeView.java:127) at org.openide.explorer.view.TreeView.synchronizeSelectedNodes(TreeView.java:881) at org.openide.explorer.view.TreeView$TreePropertyListener.propertyChange(TreeView.java:1133) at org.openide.util.WeakListenerImpl$PropertyChange.propertyChange(WeakListenerImpl.java:186) at java.beans.PropertyChangeSupport.firePropertyChange(PropertyChangeSupport.java:339) at java.beans.PropertyChangeSupport.firePropertyChange(PropertyChangeSupport.java:276) at org.openide.explorer.ExplorerManager$2.run(ExplorerManager.java:855) at org.openide.util.Mutex.doEvent(Mutex.java:1335) at org.openide.util.Mutex.readAccess(Mutex.java:345) at org.openide.explorer.ExplorerManager.fireInAWT(ExplorerManager.java:852) at org.openide.explorer.ExplorerManager$1AtomicSetSelectedNodes.fire(ExplorerManager.java:272) at org.openide.explorer.ExplorerManager.setSelectedNodes(ExplorerManager.java:285) at org.netbeans.modules.project.ui.ProjectTab.selectNode(ProjectTab.java:417) at org.netbeans.modules.project.ui.ProjectUtilities$3$1.run(ProjectUtilities.java:282) at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:209) at java.awt.EventQueue.dispatchEvent(EventQueue.java:597) at org.netbeans.core.TimableEventQueue.dispatchEvent(TimableEventQueue.java:104) 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)