java.lang.NullPointerException at org.netbeans.editor.Annotations.removeAnnotation(Annotations.java:295) at org.netbeans.modules.editor.NbEditorDocument.removeAnnotation(NbEditorDocument.java:251) [catch] at org.netbeans.modules.languages.features.AnnotationManager$1.run(AnnotationManager.java:98) at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:209) at java.awt.EventQueue.dispatchEvent(EventQueue.java:597) at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:273) at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:183) at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:173) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:168) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:160) at java.awt.EventDispatchThread.run(EventDispatchThread.java:121)