java.lang.IllegalStateException: Annotation not added: BreakpointLine Breakpoint
   at org.netbeans.modules.editor.NbEditorDocument.removeAnnotation(NbEditorDocument.java:257)
   at org.openide.text.NbDocument.removeAnnotation(NbDocument.java:533)
   at org.openide.text.DocumentLine$2.run(DocumentLine.java:381)
   at org.netbeans.editor.BaseDocument.render(BaseDocument.java:1383)
   at org.openide.text.DocumentLine.removeAnnotation(DocumentLine.java:376)
   at org.openide.text.Annotation.detach(Annotation.java:136)
   at org.netbeans.modules.debugger.jpda.projects.BreakpointAnnotationProvider.removeAnnotations(BreakpointAnnotationProvider.java:506)
   at org.netbeans.modules.debugger.jpda.projects.BreakpointAnnotationProvider.access$200(BreakpointAnnotationProvider.java:98)
   at org.netbeans.modules.debugger.jpda.projects.BreakpointAnnotationProvider$AnnotationRefresh.run(BreakpointAnnotationProvider.java:247)
   at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1454)
   at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2048)
Caused: org.openide.util.RequestProcessor$SlowItem: task failed due to: java.lang.IllegalStateException: Annotation not added: BreakpointLine Breakpoint
   at org.openide.util.RequestProcessor.post(RequestProcessor.java:424)
   at org.netbeans.modules.debugger.jpda.projects.BreakpointAnnotationProvider.propertyChange(BreakpointAnnotationProvider.java:230)
   at java.beans.PropertyChangeSupport.firePropertyChange(PropertyChangeSupport.java:339)
   at java.beans.PropertyChangeSupport.firePropertyChange(PropertyChangeSupport.java:276)
   at org.netbeans.api.debugger.Breakpoint.firePropertyChange(Breakpoint.java:379)
   at org.netbeans.api.debugger.Breakpoint.setValidity(Breakpoint.java:150)
   at org.netbeans.api.debugger.jpda.LineBreakpoint$LineBreakpointImpl.stateChanged(LineBreakpoint.java:525)
   at org.netbeans.modules.debugger.jpda.breakpoints.BreakpointImpl.setValidity(BreakpointImpl.java:177)
   at org.netbeans.modules.debugger.jpda.breakpoints.LineBreakpointImpl.classLoaded(LineBreakpointImpl.java:384)
   at org.netbeans.modules.debugger.jpda.breakpoints.ClassBasedBreakpoint.exec(ClassBasedBreakpoint.java:501)
   at org.netbeans.modules.debugger.jpda.breakpoints.LineBreakpointImpl.exec(LineBreakpointImpl.java:444)
   at org.netbeans.modules.debugger.jpda.util.Operator.processEvents(Operator.java:487)
   at org.netbeans.modules.debugger.jpda.util.Operator.access$800(Operator.java:116)
   at org.netbeans.modules.debugger.jpda.util.Operator$1.run(Operator.java:244)
   at java.lang.Thread.run(Thread.java:662)