[jboss-user] [EJB 3.0] - Re: EntityManager Injection, Null Pointer Exception. (Sorry.

[jaikiran]

anonymous wrote : HERE ARE THE CONSOLE OUTLINE WHEN I DEPLOY THE APPLICATION: 
  | 17:50:41,517 INFO [JmxKernelAbstraction] persistence.units:ear=surgeonfish.ear,jar=surgeonfish.jar,unitName=time_report_persistence_context
  | 17:50:41,532 INFO [EJBContainer] STARTED EJB: com.atosorigin.utils.pojo.PrStaffHome ejbName: PrStaffHome 

This line shows that the EJB has been properly deployed with the Entity manager dependency resolved. 

anonymous wrote : WHEN I TRY IT I AM TAKING ERROR:
  | ------------------------------------------------------------------------------
  | 17:55:56,935 WARN [ExplodedJarVisitor] Exploded jar does not exists (ignored): file:../surgeonfish.jar
  | 17:55:56,935 INFO [AnnotationBinder] Binding entity from annotated class: com.atosorigin.utils.pojo.PrGroups
  | 17:55:56,951 INFO [EntityBinder] Bind entity com.atosorigin.utils.pojo.PrGroups on table pr_groups
  | 17:55:56,951 INFO [AnnotationBinder] Binding entity from annotated class: com.atosorigin.utils.pojo.PrStaff
  | 17:55:56,951 INFO [EntityBinder] Bind entity com.atosorigin.utils.pojo.PrStaff on table pr_staff 

However this part of the log is strange. I don't know why the application/entities are being "redeployed" when you are accessing your application. What exactly do you do in this step? I mean how do you invoke the application? For some reason, the application is getting redeployed.

I see the following commented out portion in the EJB that you posted. Are you sure the class file that has been deployed also has this part commented?

anonymous wrote : 
  | /*
  | 			EntityManagerFactory emf = Persistence.createEntityManagerFactory("time_report_persistence_context");
  | 			EntityManager em = emf.createEntityManager();
  | 			PrStaff instance1 = em.find(PrStaff.class, id);
  | 			---this lines working without any error...---
  | 			*/
 

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