[jboss-user] [EJB/JBoss] - JBoss 4.0.4.GA and 4.2.1.GA EJB interoperability

I'm testing whether we can mix JBoss 4.0.4.GA and 4.2.1.GA in our environment while performing upgrades to 132+ hosts! We have an old EJB 2.1 Session Bean that works fine if the EJB is deployed on a 4.0.4.GA server and accesses by a client on 4.2.1.GA, however if we deploy the EJB on 4.2.1.GA and test whether a client on 4.0.4.GA can access the EJB, Home->create fails and the following stacktraces occur: Client exception (on 4.0.4.GA): | 2007-10-16 15:07:29,846 ERROR [org.jboss.remoting.transport.socket.SocketClientInvoker] (http-0.0.0.0-8080-2:) Got marshalling exception, exiting | java.io.OptionalDataException | at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1316) | at java.io.ObjectInputStream.readObject(ObjectInputStream.java:348) | at org.jboss.remoting.serialization.impl.java.JavaSerializationManager.receiveObject(JavaSerializationManager.java:128) | at org.jboss.remoting.marshal.serializable.SerializableUnMarshaller.read(SerializableUnMarshaller.java:66) | at org.jboss.invocation.unified.marshall.InvocationUnMarshaller.read(InvocationUnMarshaller.java:48) | at org.jboss.remoting.transport.socket.SocketClientInvoker.transport(SocketClientInvoker.java:279) | at org.jboss.remoting.RemoteClientInvoker.invoke(RemoteClientInvoker.java:143) | at org.jboss.remoting.Client.invoke(Client.java:525) | at org.jboss.remoting.Client.invoke(Client.java:488) | at org.jboss.invocation.unified.interfaces.UnifiedInvokerProxy.invoke(UnifiedInvokerProxy.java:175) | at org.jboss.invocation.InvokerInterceptor.invokeInvoker(InvokerInterceptor.java:331) | at org.jboss.invocation.MarshallingInvokerInterceptor.invoke(MarshallingInvokerInterceptor.java:63) | at org.jboss.proxy.TransactionInterceptor.invoke(TransactionInterceptor.java:61) | at org.jboss.proxy.SecurityInterceptor.invoke(SecurityInterceptor.java:70) | at org.jboss.proxy.ejb.HomeInterceptor.invoke(HomeInterceptor.java:184) | at org.jboss.proxy.ClientContainer.invoke(ClientContainer.java:100) | at $Proxy287.create(Unknown Source) | at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) | at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) | at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) | at java.lang.reflect.Method.invoke(Method.java:585) | at com.xo.nextgen.connector.ejb.SessionBeanConnection.getRemote(SessionBeanConnection.java:62) | Server exception (4.2.1.GA): | 2007-10-16 15:07:29,843 ERROR [org.jboss.remoting.transport.socket.ServerThread] (WorkerThread#0[10.88.24.173:36532]:) Worker thread initialization failure java.io.EOFException | at org.jboss.remoting.transport.socket.ServerThread.processInvocation(ServerThread.java:526) | at org.jboss.remoting.transport.socket.ServerThread.dorun(ServerThread.java:369) | at org.jboss.remoting.transport.socket.ServerThread.run(ServerThread.java:165) | Is there some work-around to get these two versions of JBoss to interoperate? View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4096240#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...