java.lang.NullPointerException
        at org.netbeans.modules.autoupdate.ui.actions.AutoupdateCheckScheduler.notifyAvailable(AutoupdateCheckScheduler.java:431)
        at org.netbeans.modules.autoupdate.ui.actions.AutoupdateCheckScheduler$7.run(AutoupdateCheckScheduler.java:356)
        at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:561)
        at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:986)