I have employed a system which involves two different version of Jboss App Server including 4.0.2 and 3.2.3. Jboss 4 makes an EJB call to 3.2.3 and finds an exception like
javax.naming.CommunicationException [Root exception is java.io.InvalidClassException: org.jboss.util.id.GUID; local class incompatible: stream classdesc serialVersionUID = 6926421946503004889, local class serialVersionUID = 3289509836244263718]
It seems like an incompatibility issue but suggestion of changing the client jars work. I am unable to find this suggestion working correctly. Is there anything i have to take care of ..