lookup local interface error

[yararay]

I'm testing EJB2.0 local interface in Jboss3.0rc2.
When I use lookup("AddressEJBLocal") in JSP, error appears(AddressEJBLocal is local-jndi-name in jboss.xml):

java.lang.NullPointerException
at org.jboss.ejb.plugins.local.LocalHomeProxy.invoke
at $Proxy0.create(Unknow source)
......

Help me, please.

[tom.baeyens]

I just succeeded in using a session bean's local interface from a jsp in a web application.
The attached ear-file contain a minimal web application and session bean. Maybe comparing the deployment descriptors to yours can shine some light on the situation.
Good luck, Tom.

[tom.baeyens]

Here is the ear file...