java.lang.NullPointerException
   at org.netbeans.modules.autoupdate.services.Utilities.handleBackwardCompatability(Utilities.java:676)
   at org.netbeans.modules.autoupdate.services.Utilities.findRequiredUpdateElements(Utilities.java:556)
   at org.netbeans.modules.autoupdate.services.OperationValidator$UpdateValidator.getRequiredElementsImpl(OperationValidator.java:313)
   at org.netbeans.modules.autoupdate.services.OperationValidator.getRequiredElements(OperationValidator.java:128)
   at org.netbeans.modules.autoupdate.services.OperationContainerImpl$OperationInfoImpl.getRequiredElements(OperationContainerImpl.java:464)
   at org.netbeans.api.autoupdate.OperationContainer$OperationInfo.getRequiredElements(OperationContainer.java:396)
   at org.netbeans.modules.autoupdate.services.OperationContainerImpl.listAllWithPossibleEager(OperationContainerImpl.java:233)
   at org.netbeans.api.autoupdate.OperationContainer.listAll(OperationContainer.java:346)
   at org.netbeans.modules.autoupdate.ui.actions.AutoupdateCheckScheduler.checkUpdateElements(AutoupdateCheckScheduler.java:320)
   at org.netbeans.modules.autoupdate.ui.actions.AutoupdateCheckScheduler$5.run(AutoupdateCheckScheduler.java:189)
   at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1423)
   at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2033)