[jboss-user] [EJB 3.0] - Re: EJB client: NullPointerException in StatelessLocalProxy

yklich do-not-reply at jboss.com
Mon Feb 5 15:37:51 EST 2007

I'm having a similar problem. I'm injecting the local EJB into a servlet, and when accesing the bean, the servlet throws a NullPointerException, just as if the bean wasn't instanciated. The servlet runs in the web-container, the bean in the EJB-container. So using the Local interface shouldnt be any problem(?)

  | public class ControllerServlet extends HttpServlet
  | {
  |     @EJB 
  |     private ItemManagerLocal itemManager;	
  |     protected void processRequest(HttpServletRequest req, HttpServletResponse res)
  |     {
  |         itemManager.findItem(itemId); // <--NPE happens  
  |     }
  | }

The <web-app> tag in the web.xml is defined as version=2.5  
Using the JBoss JMX console I found the following entry in the Global JNDI Namespace:

+- klich (class: org.jnp.interfaces.NamingContext)
  |   +- ItemManager (class: org.jnp.interfaces.NamingContext)
  |   |   +- local (proxy: $Proxy116 implements interface com.klich.ejb.ItemManagerLocal,interface org.jboss.ejb3.JBossProxy,interface javax.ejb.EJBLocalObject)
  |   |   +- remote (proxy: $Proxy115 implements interface com.klich.ejb.ItemManagerRemote,interface org.jboss.ejb3.JBossProxy,interface javax.ejb.EJBObject)

The servlet runs fine if I add: 

  | 			InitialContext ictx = new InitialContext();
  | 			itemManager = (ItemManagerLocal)ictx.lookup("klich/ItemManager/local");
without using the @EJB anotation, but we all love our anotations so much :)
Thanks in advance for any help.

Yannik Klich

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