Hi, I'm trying to access EJBs in isolated EARs in JBoss 4.2.2.GA in the same server instance. Is it possible to only enable Call by Value semantics for 1 EJB and not for all EJBs deployed in an EAR? I tried countless combinations and the only one that seemed to work is the below: I have EJBA in ear1 access EJBB in ear2 both are isolated using loader-repository in their jboss-app.xml: | <jboss-app> | <loader-repository>loader=ear1</loader-repository> | </jboss-app> | | <jboss-app> | <loader-repository>loader=ear2</loader-repository> | </jboss-app> | enable call by value in the ear-deployer.xml: | <attribute name="CallByValue">true</attribute> | EJBA code to access EJBB: | Context testcontext = new InitialContext(); | EJBBHome objref = (EJBBHome)testcontext.lookup("jnp://localhost:1299/ejb/EJBB"); | log.info("Looked up ejbb:" + objref); | objref.create().doSomething(); | The call succeeds but as soon as I set CallByValue=false, I get: | 2009-08-27 15:25:00,401 ERROR [org.jboss.ejb.plugins.LogInterceptor] TransactionRolledbackException in method: public abstract testearisolation.ear2.EJBB testearisolation.ear2.EJBBHome.create() throws javax.ejb.CreateException,java.rmi.RemoteException, causedBy: | javax.ejb.EJBException: Invalid invocation, check your deployment packaging, method=public abstract testearisolation.ear2.EJBB testearisolation.ear2.EJBBHome.create() throws javax.ejb.CreateException,java.rmi.RemoteException | I could use my working solution but then if I understand correctly it means all EJBs for all EARs under this server instance will use Call By Value semantics regardless if its 2 EJBs talking to each other in the same EAR... Please correct me if im wrong. Thanks -Guillaume View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4252132#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...