User development, A new message was posted in the thread "Looks like data object is not refreshing; how do I refresh a POJO object": http://community.jboss.org/message/520993#520993 Author : Ulrich Staudinger Profile : http://community.jboss.org/people/ustaudinger Message: -------------------------------------------------------------- Looks strongly as if JBoss Pojo Cache does not update the class versions across different JVMs. Honestly, I would also find it strange if it would.   The exception looks as if you simply have different versions of the class in the different virtual machines. -------------------------------------------------------------- To reply to this message visit the message page: http://community.jboss.org/message/520993#520993