I have an EJB defined as follows:

@Stateless(name="Search")
@TransactionAttribute(REQUIRED)
@Local(SearchEngine.class)
public class SearchEngineEJB
    extends
        AbstractEJB
    implements
        SearchEngine {

    @Resource(
        name="topic_conn_factory",
        authenticationType=AuthenticationType.CONTAINER,
        type=TopicConnectionFactory.class)
    private TopicConnectionFactory _connectionFactory;

    @Resource(
        name="topic_broadcast",
        authenticationType=AuthenticationType.CONTAINER,
        type=Topic.class)
    private Topic _broadcast;

    ...
}

I'm trying to register the appropriate objects from JNDI to the names specitied in the @Resource annotations. My jboss.xml is as follows:

<jboss>
    <enterprise-beans>
        <session>
            <ejb-name>Search</ejb-name>
            <resource-env-ref>
                <resource-env-ref-name>topic_conn_factory</resource-env-ref-name>
                <jndi-name>java:/JmsXA</jndi-name>
            </resource-env-ref>
            <resource-env-ref>
                <resource-env-ref-name>topic_broadcast</resource-env-ref-name>
                <jndi-name>topic/foo</jndi-name>
            </resource-env-ref>
        </session>  
    </enterprise-beans>
</jboss>

The binding for the connection factory works fine. However, when I deploy jBoss reports the following problem:

Deployment "vfszip:/home/.../cc7.ear/" is in error due to the following reason(s):
java.lang.RuntimeException: mapped-name or message-destination-link is required for topic_broadcast of deployment Search

Could someone shed some light on how I can resolve this?