java.lang.NullPointerException
   at org.netbeans.modules.findbugs.options.FindBugsPanel.store(FindBugsPanel.java:438)
   at org.netbeans.modules.findbugs.options.FindBugsOptionsPanelController.applyChanges(FindBugsOptionsPanelController.java:92)
   at org.netbeans.modules.options.editor.FolderBasedController.applyChanges(FolderBasedController.java:164)
   at org.netbeans.modules.options.TabbedController.applyChanges(TabbedController.java:134)
   at org.netbeans.modules.options.CategoryModel$Category.applyChanges(CategoryModel.java:401)
   at org.netbeans.modules.options.CategoryModel$Category.access$1100(CategoryModel.java:326)
   at org.netbeans.modules.options.CategoryModel.save(CategoryModel.java:222)
   at org.netbeans.modules.options.OptionsPanel.save(OptionsPanel.java:318)
   at org.netbeans.modules.options.OptionsDisplayerImpl$OptionsPanelListener$3.run(OptionsDisplayerImpl.java:520)
   at org.netbeans.modules.progress.ui.RunOffEDTImpl$3.run(RunOffEDTImpl.java:275)
   at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1423)
   at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2033)