java.lang.NullPointerException
   at org.netbeans.modules.markoccurrences.MarkOccurrencesHighlighter.<init>(MarkOccurrencesHighlighter.java:34)
   at org.netbeans.modules.markoccurrences.MarkOccurrencesHighlightsLayerFactory.getMarkOccurrencesHighlighter(MarkOccurrencesHighlightsLayerFactory.java:13)
   at org.netbeans.modules.markoccurrences.MarkOccurrencesHighlightsLayerFactory.createLayers(MarkOccurrencesHighlightsLayerFactory.java:19)
   at org.netbeans.modules.editor.lib2.highlighting.HighlightingManager$Highlighting.rebuildAllLayers(HighlightingManager.java:288)
   at org.netbeans.modules.editor.lib2.highlighting.HighlightingManager$Highlighting.rebuildAll(HighlightingManager.java:258)
   at org.netbeans.modules.editor.lib2.highlighting.HighlightingManager$Highlighting.<init>(HighlightingManager.java:154)
   at org.netbeans.modules.editor.lib2.highlighting.HighlightingManager.getHighlights(HighlightingManager.java:95)
   at org.netbeans.editor.HighlightingDrawLayer.init(HighlightingDrawLayer.java:314)
   at org.netbeans.editor.DrawEngine.initInfo(DrawEngine.java:191)
   at org.netbeans.editor.DrawEngine.drawInternal(DrawEngine.java:1165)
   at org.netbeans.editor.DrawEngine.draw(DrawEngine.java:1074)
   at org.netbeans.editor.DrawEngineLineView.viewToModel(DrawEngineLineView.java:543)
   at org.netbeans.editor.DrawEngineLineView.paint(DrawEngineLineView.java:269)
   at org.netbeans.lib.editor.view.GapBoxViewChildren.paintChildren(GapBoxViewChildren.java:805)
   at org.netbeans.lib.editor.view.GapBoxView.paint(GapBoxView.java:1475)
   at org.netbeans.lib.editor.view.GapDocumentView.paint(GapDocumentView.java:352)
   at org.netbeans.editor.DrawEngineDocView.paint(DrawEngineDocView.java:334)
   at org.netbeans.editor.view.spi.LockView.paint(LockView.java:388)
   at javax.swing.plaf.basic.BasicTextUI$RootView.paint(BasicTextUI.java:1422)
   at javax.swing.plaf.basic.BasicTextUI.paintSafely(BasicTextUI.java:722)
   at javax.swing.plaf.basic.BasicTextUI.paint(BasicTextUI.java:869)
   at javax.swing.plaf.basic.BasicTextUI.update(BasicTextUI.java:848)
   at javax.swing.JComponent.paintComponent(JComponent.java:763)
   at javax.swing.JComponent.paint(JComponent.java:1027)
   at javax.swing.JComponent.paintToOffscreen(JComponent.java:5122)
   at javax.swing.BufferStrategyPaintManager.paint(BufferStrategyPaintManager.java:277)
   at javax.swing.RepaintManager.paint(RepaintManager.java:1217)
   at javax.swing.JComponent._paintImmediately(JComponent.java:5070)
   at javax.swing.JComponent.paintImmediately(JComponent.java:4880)
   at javax.swing.RepaintManager.paintDirtyRegions(RepaintManager.java:803)
   at javax.swing.RepaintManager.paintDirtyRegions(RepaintManager.java:714)
   at javax.swing.RepaintManager.seqPaintDirtyRegions(RepaintManager.java:694)
   at javax.swing.SystemEventQueueUtilities$ComponentWorkRequest.run(SystemEventQueueUtilities.java:128)
   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)