I have a Seam application(the booking example in fact) invoking a request to another JBoss app server. This app server returns the entity objects as result which triggers the exception below: java.io.InvalidClassException: org.hibernate.collection.PersistentBag; local class incompatible: stream classdesc serialVersionUID = -992182677146982163, local class serialVersionUID = 2819117614876030537 Anybody know how to work around or avoid this problem? View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4006789#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...