It's been a while since I've worked in the EJB world (been doing a lot of just webapp development lately) so please bear with me. I am using jboss-4.2.1.GA and java version "1.5.0_11" I am working on a simple EJB project. I have 1 local session bean an 1 entity bean which is managed by the Java Persistence API. I pack this all up into an ear file and deploy it to jboss. I can see in the JNDIList the ejb is deployed: | +- oak.oths.domain (class: org.jnp.interfaces.NamingContext) | | +- AlumniEjb (class: org.jnp.interfaces.NamingContext) | | | +- local (proxy: $Proxy172 implements interface org.oak.oths.domain.alumni.AlumniLocal,interface org.jboss.ejb3.JBossProxy,interface javax.ejb.EJBLocalObject) | Now I have a webapp. This webapp is deployed as a seperate war file. Inside the webapp I do a JNDI lookup, find the object, but get a java.lang.ClassCastException when I try to typecast or PortableRemoteObject.narrow() it to the EJB's local interface, AlumniLocal. | // This causes a ClassCastException! | AlumniLocal local | = (AlumniLocal)ctx.lookup("oak.oths.domain/AlumniEjb/local"); | I can loop over the interfaces which the class implements and it does indeed implement the AdminLocal interface so my question is why am I getting this ClassCastException? If the EJB is in an EAR file and the webapp is deployed as a seperate WAR file can the two not use Local interfaces? View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4110238#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...