java.lang.NullPointerException
   at org.netbeans.modules.websvc.rest.codegen.JavaEE6EntityResourcesGenerator.generate(JavaEE6EntityResourcesGenerator.java:78)
   at org.netbeans.modules.websvc.rest.wizard.EntityResourcesIterator$1.run(EntityResourcesIterator.java:165)
   at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1452)
   at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2032)