java.lang.NullPointerException
   at org.netbeans.core.startup.preferences.NbPreferences.put(NbPreferences.java:179)
   at org.netbeans.core.startup.preferences.NbPreferences.put(NbPreferences.java:174)
   at com.sun.tools.devplatform.management.ConfigurationsRegistry.storeImpl(ConfigurationsRegistry.java:201)
   at com.sun.tools.devplatform.management.ConfigurationsRegistry.access$000(ConfigurationsRegistry.java:30)
   at com.sun.tools.devplatform.management.ConfigurationsRegistry$1.run(ConfigurationsRegistry.java:52)
   at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1423)
   at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2033)