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:378)
   at org.netbeans.editor.BaseDocument.render(BaseDocument.java:1390)
   at org.openide.text.DocumentLine.removeAnnotation(DocumentLine.java:373)
   at org.openide.text.Annotation.detach(Annotation.java:136)
   at org.netbeans.modules.debugger.jpda.projects.BreakpointAnnotationProvider.removeAnnotations(BreakpointAnnotationProvider.java:577)
   at org.netbeans.modules.debugger.jpda.projects.BreakpointAnnotationProvider.access$200(BreakpointAnnotationProvider.java:102)
   at org.netbeans.modules.debugger.jpda.projects.BreakpointAnnotationProvider$AnnotationRefresh.refreshAnnotation(BreakpointAnnotationProvider.java:316)
   at org.netbeans.modules.debugger.jpda.projects.BreakpointAnnotationProvider$AnnotationRefresh.run(BreakpointAnnotationProvider.java:305)
Caused: org.openide.util.RequestProcessor$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.breakpointRemoved(BreakpointAnnotationProvider.java:210)
   at sun.reflect.GeneratedMethodAccessor172.invoke(GeneratedMethodAccessor172.java:0)
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
   at java.lang.reflect.Method.invoke(Method.java:606)
   at org.openide.util.WeakListenerImpl$ProxyListener.invoke(WeakListenerImpl.java:458)
   at com.sun.proxy.$Proxy11.breakpointRemoved(.java:0)
   at org.netbeans.api.debugger.DebuggerManager.fireBreakpointRemoved(DebuggerManager.java:921)
   at org.netbeans.api.debugger.DebuggerManager.removeBreakpoint(DebuggerManager.java:588)
   at org.netbeans.api.debugger.DebuggerManager.removeBreakpoint(DebuggerManager.java:563)
   at org.netbeans.modules.debugger.jpda.ui.actions.ToggleBreakpointActionProvider.doTheAction(ToggleBreakpointActionProvider.java:193)
   at org.netbeans.modules.debugger.jpda.ui.actions.ToggleBreakpointActionProvider.doAction(ToggleBreakpointActionProvider.java:166)
   at org.netbeans.modules.debugger.jpda.ui.actions.ToggleBreakpointActionProvider$1.run(ToggleBreakpointActionProvider.java:258)
   at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1432)
   at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2042)