java.lang.NullPointerException
   at org.netbeans.modules.javadoc.highlighting.Highlighting$HSImpl.moveNext(Highlighting.java:188)
   at org.netbeans.modules.editor.lib2.highlighting.CheckedHighlightsSequence.moveNext(CheckedHighlightsSequence.java:102)
   at org.netbeans.modules.editor.lib2.highlighting.ProxyHighlightsContainer$Sequence2Marks.moveNext(ProxyHighlightsContainer.java:432)
   at org.netbeans.modules.editor.lib2.highlighting.ProxyHighlightsContainer$ProxySeq.moveNext(ProxyHighlightsContainer.java:287)
   at org.netbeans.modules.editor.lib2.view.HighlightsViewFactory.updateHighlight(HighlightsViewFactory.java:186)
   at org.netbeans.modules.editor.lib2.view.HighlightsViewFactory.createView(HighlightsViewFactory.java:124)
   at org.netbeans.modules.editor.lib2.view.ViewBuilder.createNextView(ViewBuilder.java:473)
   at org.netbeans.modules.editor.lib2.view.ViewBuilder.createViews(ViewBuilder.java:412)
   at org.netbeans.modules.editor.lib2.view.ViewBuilder.createReplaceAndRepaintViews(ViewBuilder.java:705)
   at org.netbeans.modules.editor.lib2.view.ViewUpdates.initChildren(ViewUpdates.java:243)
   at org.netbeans.modules.editor.lib2.view.DocumentView.initChildren(DocumentView.java:692)
   at org.netbeans.modules.editor.lib2.view.EditorBoxViewChildren.paintChildren(EditorBoxViewChildren.java:882)
   at org.netbeans.modules.editor.lib2.view.EditorBoxViewChildren.paintChildren(EditorBoxViewChildren.java:873)
   at org.netbeans.modules.editor.lib2.view.EditorBoxViewChildren.paint(EditorBoxViewChildren.java:864)
   at org.netbeans.modules.editor.lib2.view.EditorBoxView.paint(EditorBoxView.java:454)
   at org.netbeans.modules.editor.lib2.view.DocumentView.paint(DocumentView.java:1029)
   at org.netbeans.modules.editor.lib2.view.EditorView.paint(EditorView.java:164)
   at javax.swing.plaf.basic.BasicTextUI$RootView.paint(BasicTextUI.java:1423)
   at javax.swing.plaf.basic.BasicTextUI.paintSafely(BasicTextUI.java:723)
   at javax.swing.plaf.basic.BasicTextUI.paint(BasicTextUI.java:870)
   at javax.swing.plaf.basic.BasicTextUI.update(BasicTextUI.java:849)
   at javax.swing.JComponent.paintComponent(JComponent.java:752)
   at javax.swing.JComponent.paint(JComponent.java:1029)
   at javax.swing.JComponent.paintChildren(JComponent.java:862)
   at javax.swing.JComponent.paint(JComponent.java:1038)
   at javax.swing.JViewport.paint(JViewport.java:747)
   at javax.swing.JComponent.paintChildren(JComponent.java:862)
   at javax.swing.JComponent.paint(JComponent.java:1038)
   at javax.swing.JComponent.paintChildren(JComponent.java:862)
   at javax.swing.JComponent.paint(JComponent.java:1038)
   at javax.swing.JComponent.paintChildren(JComponent.java:862)
   at javax.swing.JComponent.paint(JComponent.java:1038)
   at org.openide.explorer.propertysheet.PropertyPanel.paint(PropertyPanel.java:1181)
   at javax.swing.JComponent.paintChildren(JComponent.java:862)
   at javax.swing.JComponent.paint(JComponent.java:1038)
   at javax.swing.JComponent.paintChildren(JComponent.java:862)
   at javax.swing.JComponent.paint(JComponent.java:1038)
   at javax.swing.JComponent.paintChildren(JComponent.java:862)
   at javax.swing.JComponent.paint(JComponent.java:1038)
   at javax.swing.JViewport.paint(JViewport.java:747)
   at javax.swing.JComponent.paintChildren(JComponent.java:862)
   at javax.swing.JComponent.paint(JComponent.java:1038)
   at javax.swing.JComponent.paintChildren(JComponent.java:862)
   at javax.swing.JComponent.paint(JComponent.java:1038)
   at javax.swing.JComponent.paintChildren(JComponent.java:862)
   at javax.swing.JComponent.paint(JComponent.java:1038)
   at javax.swing.JComponent._paintImmediately(JComponent.java:5098)
   at javax.swing.JComponent.paintImmediately(JComponent.java:4882)
   at javax.swing.RepaintManager.paintDirtyRegions(RepaintManager.java:811)
   at javax.swing.RepaintManager.paintDirtyRegions(RepaintManager.java:713)
   at javax.swing.RepaintManager.seqPaintDirtyRegions(RepaintManager.java:693)
   at javax.swing.SystemEventQueueUtilities$ComponentWorkRequest.run(SystemEventQueueUtilities.java:125)
   at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:209)
   at java.awt.EventQueue.dispatchEvent(EventQueue.java:633)
   at org.netbeans.core.TimableEventQueue.dispatchEvent(TimableEventQueue.java:148)
   at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:296)
   at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:211)
   at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:201)
   at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:196)
   at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:188)
   at java.awt.EventDispatchThread.run(EventDispatchThread.java:122)