java.lang.AssertionError: Null textComponent
   at org.netbeans.modules.editor.lib2.view.ViewBuilder.repaintAndReplaceViews(ViewBuilder.java:340)
   at org.netbeans.modules.editor.lib2.view.ViewUpdates.checkRebuild(ViewUpdates.java:424)
   at org.netbeans.modules.editor.lib2.view.ViewUpdates$FactoriesListener.viewFactoryChanged(ViewUpdates.java:452)
   at org.netbeans.modules.editor.lib2.view.EditorViewFactory.fireEvent(EditorViewFactory.java:194)
   at org.netbeans.modules.editor.lib2.view.HighlightsViewFactory.highlightChanged(HighlightsViewFactory.java:226)
   at org.netbeans.spi.editor.highlighting.support.AbstractHighlightsContainer.fireHighlightsChange(AbstractHighlightsContainer.java:110)
   at org.netbeans.modules.editor.lib2.highlighting.CompoundHighlightsContainer.access$000(CompoundHighlightsContainer.java:64)
   at org.netbeans.modules.editor.lib2.highlighting.CompoundHighlightsContainer$1.run(CompoundHighlightsContainer.java:273)
   at org.netbeans.editor.BaseDocument.render(BaseDocument.java:1379)
   at org.netbeans.modules.editor.lib2.highlighting.CompoundHighlightsContainer.setLayers(CompoundHighlightsContainer.java:271)
   at org.netbeans.modules.editor.lib2.highlighting.HighlightingManager$Highlighting.rebuildContainer(HighlightingManager.java:372)
   at org.netbeans.modules.editor.lib2.highlighting.HighlightingManager$Highlighting.rebuildAllContainers(HighlightingManager.java:350)
   at org.netbeans.modules.editor.lib2.highlighting.HighlightingManager$Highlighting.rebuildAllLayers(HighlightingManager.java:332)
   at org.netbeans.modules.editor.lib2.highlighting.HighlightingManager$Highlighting.access$000(HighlightingManager.java:111)
   at org.netbeans.modules.editor.lib2.highlighting.HighlightingManager$Highlighting$2.resultChanged(HighlightingManager.java:131)
   at org.openide.util.lookup.AbstractLookup$NotifyListeners.run(AbstractLookup.java:521)
   at org.openide.util.lookup.AbstractLookup.notifyIn(AbstractLookup.java:301)
   at org.openide.util.lookup.AbstractLookup.setPairs(AbstractLookup.java:294)
   at org.openide.util.lookup.AbstractLookup$Content.setPairs(AbstractLookup.java:1251)
   at org.openide.util.lookup.InstanceContent.set(InstanceContent.java:144)
   at org.netbeans.modules.editor.settings.storage.SettingsProvider$MyLookup.updateContents(SettingsProvider.java:291)
   at org.netbeans.modules.editor.settings.storage.SettingsProvider$MyLookup.propertyChange(SettingsProvider.java:204)
   at org.openide.util.WeakListenerImpl$PropertyChange.propertyChange(WeakListenerImpl.java:188)
   at java.beans.PropertyChangeSupport.firePropertyChange(PropertyChangeSupport.java:339)
   at java.beans.PropertyChangeSupport.firePropertyChange(PropertyChangeSupport.java:276)
   at org.netbeans.modules.editor.settings.storage.EditorSettingsImpl.notifyTokenFontColorChange(EditorSettingsImpl.java:147)
   at org.netbeans.modules.editor.settings.storage.fontscolors.FontColorSettingsImpl.setAllFontColors(FontColorSettingsImpl.java:174)
   at org.netbeans.modules.options.colors.ColorModel$Preview$2.run(ColorModel.java:313)
   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:130)
   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)