java.lang.NullPointerException
   at org.netbeans.api.debugger.DebuggerManager.refreshDebuggerManagerListeners(DebuggerManager.java:1529)
   at org.netbeans.api.debugger.DebuggerManager.initDebuggerManagerListeners(DebuggerManager.java:1504)
   at org.netbeans.api.debugger.DebuggerManager.initBreakpoints(DebuggerManager.java:990)
   at org.netbeans.api.debugger.DebuggerManager.initBreakpoints(DebuggerManager.java:959)
   at org.netbeans.api.debugger.DebuggerManager.getBreakpoints(DebuggerManager.java:597)
   at org.netbeans.modules.web.javascript.debugger.breakpoints.BreakpointAnnotationListener.annotate(BreakpointAnnotationListener.java:186)
   at org.openide.text.CloneableEditorSupport.ensureAnnotationsLoaded(CloneableEditorSupport.java:420)
   at org.openide.text.CloneableEditor$DoInitialize$3.run(CloneableEditor.java:870)
Caused: org.openide.util.RequestProcessor$SlowItem: task failed due to: java.lang.NullPointerException
   at org.openide.util.RequestProcessor.post(RequestProcessor.java:424)
   at org.openide.text.CloneableEditor$DoInitialize.initRest(CloneableEditor.java:868)
   at org.openide.text.CloneableEditor$DoInitialize.run(CloneableEditor.java:402)
   at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1454)
   at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2036)