java.lang.NullPointerException
   at org.netbeans.modules.search.MatchingObject.cleanup(MatchingObject.java:186)
   at org.netbeans.modules.search.ResultModel.close(ResultModel.java:173)
   at org.netbeans.modules.search.CleanTask.run(CleanTask.java:70)
   at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1418)
   at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:1960)
Caused: org.openide.util.RequestProcessor$SlowItem: task failed due to: java.lang.NullPointerException
   at org.openide.util.RequestProcessor$Task.schedule(RequestProcessor.java:1459)
   at org.netbeans.modules.search.Manager.runTask(Manager.java:599)
   at org.netbeans.modules.search.Manager.startCleaning(Manager.java:588)
   at org.netbeans.modules.search.Manager.processNextPendingTask(Manager.java:522)
   at org.netbeans.modules.search.Manager.scheduleCleanTask(Manager.java:177)
   at org.netbeans.modules.search.ResultView.removePanel(ResultView.java:369)
   at org.netbeans.modules.search.ResultView.closeAndSendFocusToEditor(ResultView.java:510)
   at sun.reflect.NativeMethodAccessorImpl.invoke0(NativeMethodAccessorImpl.java:0)
   at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
   at java.lang.reflect.Method.invoke(Method.java:597)
   at org.netbeans.modules.search.Manager$1.run(Manager.java:447)
   at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:209)
   at java.awt.EventQueue.dispatchEvent(EventQueue.java:597)
   at org.netbeans.core.TimableEventQueue.dispatchEvent(TimableEventQueue.java:138)
   at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:269)
   at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:184)
   at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:174)
   at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:169)
   at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:161)
   at java.awt.EventDispatchThread.run(EventDispatchThread.java:122)