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$Task.run(RequestProcessor.java:1424)
   at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:1968)
Caused: org.openide.util.RequestProcessor$SlowItem: task failed due to: java.lang.NullPointerException
   at org.openide.util.RequestProcessor$Task.schedule(RequestProcessor.java:1465)
   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.access$200(ResultView.java:84)
   at org.netbeans.modules.search.ResultView$CloseListener.propertyChange(ResultView.java:564)
   at java.beans.PropertyChangeSupport.firePropertyChange(PropertyChangeSupport.java:339)
   at java.beans.PropertyChangeSupport.firePropertyChange(PropertyChangeSupport.java:276)
   at java.awt.Component.firePropertyChange(Component.java:8217)
   at org.openide.awt.CloseButtonTabbedPane.fireCloseRequest(CloseButtonTabbedPane.java:417)
   at org.openide.awt.CloseButtonTabbedPane.access$100(CloseButtonTabbedPane.java:87)
   at org.openide.awt.CloseButtonTabbedPane$ButtonTab$TabButton.actionPerformed(CloseButtonTabbedPane.java:568)
   at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:2028)
   at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2351)
   at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:387)
   at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:242)
   at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:236)
   at java.awt.Component.processMouseEvent(Component.java:6352)
   at javax.swing.JComponent.processMouseEvent(JComponent.java:3267)
   at java.awt.Component.processEvent(Component.java:6117)
   at java.awt.Container.processEvent(Container.java:2085)
   at java.awt.Component.dispatchEventImpl(Component.java:4714)
   at java.awt.Container.dispatchEventImpl(Container.java:2143)
   at java.awt.Component.dispatchEvent(Component.java:4544)
   at java.awt.LightweightDispatcher.retargetMouseEvent(LightweightDispatcher.java:4621)
   at java.awt.LightweightDispatcher.processMouseEvent(LightweightDispatcher.java:4282)
   at java.awt.LightweightDispatcher.dispatchEvent(LightweightDispatcher.java:4212)
   at java.awt.Container.dispatchEventImpl(Container.java:2129)
   at java.awt.Window.dispatchEventImpl(Window.java:2478)
   at java.awt.Component.dispatchEvent(Component.java:4544)
   at java.awt.EventQueue.dispatchEvent(EventQueue.java:635)
   at org.netbeans.core.TimableEventQueue.dispatchEvent(TimableEventQueue.java:148)
   at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:296)
   at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:211)
   at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:201)
   at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:196)
   at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:188)
   at java.awt.EventDispatchThread.run(EventDispatchThread.java:122)