java.lang.NullPointerException
   at org.netbeans.modules.j2ee.persistence.wizard.jpacontroller.JpaControllerGenerator.generateJpaController(JpaControllerGenerator.java:248)
   at org.netbeans.modules.j2ee.persistence.wizard.jpacontroller.JpaControllerGenerator.generateJpaController(JpaControllerGenerator.java:159)
   at org.netbeans.modules.j2ee.persistence.wizard.jpacontroller.JpaControllerIterator.generateJpaControllers(JpaControllerIterator.java:286)
   at org.netbeans.modules.j2ee.persistence.wizard.jpacontroller.JpaControllerIterator$1.run(JpaControllerIterator.java:133)
   at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1443)
   at org.netbeans.modules.openide.util.GlobalLookup.execute(GlobalLookup.java:68)
   at org.openide.util.lookup.Lookups.executeWith(Lookups.java:303)
   at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2058)