Hi, I have a remote stateless session bean methos that returns an object that doesn't implement the serializable interface (this object is a class with 4 String attributes). So from what i understand the method should not work and throw a java.io.NotSerializableException when invoked. This is the case when i deploy the application on Jboss 4.0.3 But when i deploy it on jboss 4.0.5GA it works fine. I can invoke the remote method and it works although the return type is not serializable. Just to note, when i try to invoke the metod (in both cases), I always do it from the same pc server the jboss is running but I always lookup the remote interface. Does any why know why the difference in behaiour? Thanks View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4114804#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...