java.lang.NullPointerException
   at org.openide.explorer.view.Visualizer.findNode(Visualizer.java:90)
   at org.netbeans.modules.search.ui.AbstractSearchResultsPanel.testNodeInRow(AbstractSearchResultsPanel.java:643)
   at org.netbeans.modules.search.ui.AbstractSearchResultsPanel.findRowIndexInOutline(AbstractSearchResultsPanel.java:630)
   at org.netbeans.modules.search.ui.AbstractSearchResultsPanel.getChildrenInDisplayedOrder(AbstractSearchResultsPanel.java:597)
   at org.netbeans.modules.search.ui.AbstractSearchResultsPanel.getChildren(AbstractSearchResultsPanel.java:585)
   at org.netbeans.modules.search.ui.AbstractSearchResultsPanel.findDown(AbstractSearchResultsPanel.java:545)
   at org.netbeans.modules.search.ui.AbstractSearchResultsPanel.findUp(AbstractSearchResultsPanel.java:532)
   at org.netbeans.modules.search.ui.AbstractSearchResultsPanel.findDetailNode(AbstractSearchResultsPanel.java:500)
   at org.netbeans.modules.search.ui.AbstractSearchResultsPanel.findShiftNode(AbstractSearchResultsPanel.java:494)
   at org.netbeans.modules.search.ui.AbstractSearchResultsPanel.updateShiftButtons(AbstractSearchResultsPanel.java:445)
   at org.netbeans.modules.search.ui.BasicAbstractResultsPanel$1.run(BasicAbstractResultsPanel.java:147)
   at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:311)
   at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:756)
   at java.awt.EventQueue.access$500(EventQueue.java:97)
   at java.awt.EventQueue$3.run(EventQueue.java:709)
   at java.awt.EventQueue$3.run(EventQueue.java:703)
   at java.security.AccessController.doPrivileged(AccessController.java:0)
   at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:76)
   at java.awt.EventQueue.dispatchEvent(EventQueue.java:726)
   at org.netbeans.core.TimableEventQueue.dispatchEvent(TimableEventQueue.java:159)
   at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:201)
   at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116)
   at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105)
   at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
   at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93)
   at java.awt.EventDispatchThread.run(EventDispatchThread.java:82)