java.lang.NullPointerException
   at org.netbeans.modules.licensechanger.WizardPP$1.start(WizardPP.java:110)
   at org.netbeans.api.wizard.displayer.WizardDisplayerImpl$3.run(WizardDisplayerImpl.java:454)
   at java.lang.Thread.run(Thread.java:722)