java.lang.ArrayIndexOutOfBoundsException: -536809127
   at org.netbeans.modules.editor.lib2.document.CharContent.charAt(CharContent.java:80)
   at org.netbeans.modules.editor.lib2.highlighting.WhitespaceHighlighting$HS.moveNext(WhitespaceHighlighting.java:309)
   at org.netbeans.modules.editor.lib2.highlighting.DirectMergeContainer$Wrapper.fetchNextHighlight(DirectMergeContainer.java:623)
   at org.netbeans.modules.editor.lib2.highlighting.DirectMergeContainer$Wrapper.init(DirectMergeContainer.java:532)
   at org.netbeans.modules.editor.lib2.highlighting.DirectMergeContainer$HlSequence.<init>(DirectMergeContainer.java:234)
   at org.netbeans.modules.editor.lib2.highlighting.DirectMergeContainer.getHighlights(DirectMergeContainer.java:119)
   at org.netbeans.modules.editor.hints.HintsUI$4$1.run(HintsUI.java:1034)
   at org.netbeans.editor.BaseDocument.render(BaseDocument.java:1427)
   at org.netbeans.modules.editor.hints.HintsUI$4.run(HintsUI.java:1032)
   at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1443)
   at org.netbeans.modules.openide.util.GlobalLookup.execute(GlobalLookup.java:68)
   at org.openide.util.lookup.Lookups.executeWith(Lookups.java:303)
   at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2058)