java.lang.NullPointerException
        at java.util.HashSet.<init>(HashSet.java:99)
        at org.netbeans.modules.apisupport.project.ui.customizer.SingleModuleProperties.getUniverseDependencies(SingleModuleProperties.java:482)
        at org.netbeans.modules.apisupport.project.ui.customizer.AddModulePanel$5.run(AddModulePanel.java:188)
        at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:539)
        at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:964)