java.lang.NullPointerException
   at org.netbeans.modules.editor.lib2.view.DocumentView.getViewIndex(DocumentView.java:327)
   at org.netbeans.modules.editor.lib2.view.ViewHierarchyImpl.modelToParagraphView(ViewHierarchyImpl.java:284)
   at org.netbeans.modules.editor.lib2.view.LockedViewHierarchy.modelToParagraphView(LockedViewHierarchy.java:124)
   at org.netbeans.editor.GlyphGutter$6.run(GlyphGutter.java:655)
   at org.netbeans.editor.BaseDocument.render(BaseDocument.java:1404)
   at org.netbeans.editor.GlyphGutter.changedLine(GlyphGutter.java:644)
   at org.netbeans.editor.Annotations.fireChangedLine(Annotations.java:644)
   at org.netbeans.editor.Annotations.refreshLine(Annotations.java:564)
   at org.netbeans.editor.Annotations.addAnnotation(Annotations.java:300)
   at org.netbeans.modules.editor.NbEditorDocument.addAnnotation(NbEditorDocument.java:234)
   at org.openide.text.NbDocument.addAnnotation(NbDocument.java:504)
   at org.netbeans.modules.editor.hints.ParseErrorAnnotation.attachAnnotation(ParseErrorAnnotation.java:149)
   at org.netbeans.modules.editor.hints.AnnotationHolder$NbDocumentAttacher.attachAnnotation(AnnotationHolder.java:240)
   at org.netbeans.modules.editor.hints.AnnotationHolder.attachAnnotation(AnnotationHolder.java:222)
   at org.netbeans.modules.editor.hints.AnnotationHolder.updateAnnotationOnLine(AnnotationHolder.java:692)
   at org.netbeans.modules.editor.hints.AnnotationHolder.setErrorDescriptionsImpl(AnnotationHolder.java:981)
   at org.netbeans.modules.editor.hints.AnnotationHolder.access$1400(AnnotationHolder.java:120)
   at org.netbeans.modules.editor.hints.AnnotationHolder$5.run(AnnotationHolder.java:894)
   at org.netbeans.editor.BaseDocument.render(BaseDocument.java:1404)
   at org.netbeans.modules.editor.hints.AnnotationHolder.setErrorDescriptions(AnnotationHolder.java:891)
   at org.netbeans.modules.editor.hints.HintsControllerImpl.setErrorsImpl(HintsControllerImpl.java:111)
   at org.netbeans.modules.editor.hints.HintsControllerImpl.setErrors(HintsControllerImpl.java:93)
   at org.netbeans.spi.editor.hints.HintsController$1.run(HintsController.java:84)
Caused: org.openide.util.RequestProcessor$SlowItem: task failed due to: java.lang.NullPointerException
   at org.openide.util.RequestProcessor.post(RequestProcessor.java:425)
   at org.netbeans.spi.editor.hints.HintsController.setErrors(HintsController.java:82)
   at org.netbeans.modules.maven.hints.pom.StatusProvider$StatusProviderImpl.checkHints(StatusProvider.java:152)
   at org.netbeans.modules.maven.hints.pom.StatusProvider$StatusProviderImpl.access$000(StatusProvider.java:122)
   at org.netbeans.modules.maven.hints.pom.StatusProvider$StatusProviderImpl$2.run(StatusProvider.java:145)
   at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1424)
   at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:1973)