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I have am deploying 2 EARs onto JBoss AS 7.1.0.Alpha1-SNAPSHOT (post 7.0.1.Final version). Both deploy fine. I have an EJB Singleton class packaged within a JAR, within one of the EARs: @Startup @Singleton // one of @Local(Store.class), @Remote(Store.class), @LocalBean @TransactionAttribute(TransactionAttributeType.NOT_SUPPORTED) @Transactional(TransactionPropagation.SUPPORTS) public class StoreFront implements Store { ... public interface Store { ... When it deploys, it says the EJB is bound to: "java:app/store-core-2011.1.2-SNAPSHOT/StoreFront" "java:app/store-core-2011.1.2-SNAPSHOT/StoreFront!uk.co.magus.jam.store.core.Store" "java:module/StoreFront" "java:module/StoreFront!uk.co.magus.jam.store.core.Store" "java:global/store-ear-2011.1.2-SNAPSHOT/store-core-2011.1.2-SNAPSHOT/StoreFront!uk.co.magus.jam.store.core.Store" "java:global/store-ear-2011.1.2-SNAPSHOT/store-core-2011.1.2-SNAPSHOT/StoreFront" So far, so good. When I try to look it up via JNDI from a non-CDI, non-EJB class within a JAR within the OTHER deployed EAR, it can only be found on the JNDI names under 'global' - again, expected. However, when I try to cast the resulting object to the actual interface class: Object lookupObject = new InitialContext().lookup(jndiName); Store store = (StoreFront)lookupObject; I get the following exception: 11:17:52,402 ERROR [jam.core.link.LinkListener] (Thread-45) Exception when casting to Store after lookup with [java:global/store-ear-2011.1.2-SNAPSHOT/store-core-2011.1.2-SNAPSHOT/StoreFront]: java.lang.ClassCastException: jam.store.core.Store$$$view1 cannot be cast to jam.store.core.Store at jam.core.link.LinkListener.getStore(LinkListener.java:108) [core-jar-2011.1.2-SNAPSHOT.jar:] at jam.core.link.LinkListener.postLoad(LinkListener.java:27) [core-jar-2011.1.2-SNAPSHOT.jar:] at sun.reflect.NativeMethodAccessorImp
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