java.util.EmptyStackException
        at java.util.Stack.peek(Stack.java:85)
        at java.util.Stack.pop(Stack.java:67)
        at javax.swing.tree.VariableHeightLayoutCache.getNodeForPath(VariableHeightLayoutCache.java:816)
        at javax.swing.tree.VariableHeightLayoutCache.getRowForPath(VariableHeightLayoutCache.java:234)
        at org.openide.explorer.view.PropertiesRowModel.rowForNode(PropertiesRowModel.java:111)
        at org.openide.explorer.view.PropertiesRowModel.access$000(PropertiesRowModel.java:63)
        at org.openide.explorer.view.PropertiesRowModel$1.propertyChange(PropertiesRowModel.java:76)
        at org.openide.util.WeakListenerImpl$PropertyChange.propertyChange(WeakListenerImpl.java:186)
        at org.openide.nodes.Node.firePropertyChange(Node.java:995)
        at org.netbeans.modules.viewmodel.TreeModelNode.refreshNode(TreeModelNode.java:440)
        at org.netbeans.modules.viewmodel.TreeModelNode.access$300(TreeModelNode.java:87)
        at org.netbeans.modules.viewmodel.TreeModelNode$2.run(TreeModelNode.java:307)
        at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:573)
        at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:1005)