Annotation: Exception occurred in Request Processor
java.lang.NullPointerException
	at org.netbeans.modules.java.j2seproject.J2SEProjectUtil.getMainClasses(J2SEProjectUtil.java:118)
	at org.netbeans.modules.java.j2seproject.J2SEProjectUtil.getMainClasses(J2SEProjectUtil.java:102)
	at org.netbeans.modules.java.j2seproject.ui.customizer.MainClassChooser$3.run(MainClassChooser.java:85)
	at org.openide.util.Task.run(Task.java:207)
	at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:419)
[catch] at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:794)