java.lang.NullPointerException: Null child at index 0, parent: Root, model: org.netbeans.spi.viewmodel.Models$CompoundModel@1a873070
  TreeModel = org.netbeans.spi.viewmodel.Models$DelegatingTreeModel@402f71b7
    org.netbeans.modules.web.javascript.debugger.annotation.ToolTipModel@376b6a01
  NodeModel =     org.netbeans.modules.web.javascript.debugger.annotation.ToolTipModel@376b6a01
  TableModel = org.netbeans.spi.viewmodel.Models$DelegatingTableModel@50a6db59
    org.netbeans.modules.web.javascript.debugger.annotation.ToolTipModel@376b6a01
  NodeActionsProvider = org.netbeans.spi.viewmodel.Models$DelegatingNodeActionsProvider@6ad2c64c

  ColumnsModel = [org.netbeans.modules.debugger.ui.models.ColumnModels$AbstractColumn@58944820, org.netbeans.modules.debugger.ui.models.ColumnModels$AbstractColumn@6f0b5a4e, org.netbeans.modules.debugger.ui.models.ColumnModels$AbstractColumn@5255efd6, org.netbeans.modules.debugger.ui.models.ColumnModels$AbstractColumn@7f4f4d5]
All children are: [null]
   at org.netbeans.modules.viewmodel.TreeModelNode$TreeModelChildren.applyChildren(TreeModelNode.java:1536)
   at org.netbeans.modules.viewmodel.TreeModelNode$TreeModelChildren.refreshLazyChildren(TreeModelNode.java:1513)
   at org.netbeans.modules.viewmodel.TreeModelNode$TreeModelChildren.refreshChildren(TreeModelNode.java:1368)
   at org.netbeans.modules.viewmodel.TreeModelNode.refreshTheChildren(TreeModelNode.java:975)
   at org.netbeans.modules.viewmodel.TreeModelNode.refreshTheChildren(TreeModelNode.java:958)
   at org.netbeans.modules.viewmodel.TreeModelNode$5.run(TreeModelNode.java:592)
   at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:241)
   at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:721)
   at java.awt.EventQueue.access$200(EventQueue.java:103)
   at java.awt.EventQueue$3.run(EventQueue.java:682)
   at java.awt.EventQueue$3.run(EventQueue.java:680)
   at java.security.AccessController.doPrivileged(AccessController.java:0)
   at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
   at java.awt.EventQueue.dispatchEvent(EventQueue.java:691)
   at org.netbeans.core.TimableEventQueue.dispatchEvent(TimableEventQueue.java:158)
   at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:244)
   at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:163)
   at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:151)
   at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:147)
   at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:139)
   at java.awt.EventDispatchThread.run(EventDispatchThread.java:97)
Caused: java.lang.reflect.InvocationTargetException
   at java.awt.EventQueue.invokeAndWait(EventQueue.java:1258)
   at javax.swing.SwingUtilities.invokeAndWait(SwingUtilities.java:1349)
   at org.netbeans.modules.viewmodel.TreeModelNode$5.run(TreeModelNode.java:575)
   at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1454)
   at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2036)