Hi, As suggested I've created a new topic regarding the EJB injection in web services (http://www.jboss.org/index.html?module=bb&op=viewtopic&t=154200). I've also tried to test different configurations to surround the main problem (I have now a smaller application, but still build upon our framework, which seems behave in the same way as the "big" one, ifsapp.ear; we've also got a newer build of JBoss 5.1 through Red Hat support: 5.1.0.CR1; could it be of interest to get the log files from this version?). But during my tests I found it totally impossible to deploy EJBs with mutual dependencies: | @Stateless | public class AStatelessSessionBean implements AStatelessSession | { | @EJB | //@EJB(mappedName="ifssimpletest/BStatelessSessionBean/local") | private BStatelessSession bean; | | @TransactionAttribute(TransactionAttributeType.REQUIRED) | public String sayHello( String name ) | { | return bean.sayHello(name); | } | | public String greetingPhrase() | { | return "Hello there"; | } | } | | @Stateless | public class BStatelessSessionBean implements BStatelessSession | { | @EJB | //@EJB(mappedName="ifssimpletest/AStatelessSessionBean/local") | private AStatelessSession bean; | | @TransactionAttribute(TransactionAttributeType.REQUIRED) | public String sayHello( String name ) | { | return bean.greetingPhrase() + ", " + name + "!\n"; | } | } | I've tested with and without 'mappedName'; I've also tested to pack both EJBs to a single jar file - nothing helps (I have a very simple test application with two EJBs as above and one servlet calling one of the EJBs - this application works perfectly on both GlassFish 2.1 and webLogic 10.3). View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4226445#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...