Any one has a solution for this problem of mine ? Is it JGroup problem which i should ask there or is it the new version of jboss cache exception. Any one on jboss cache team ? Regards, Dor "dorbd" wrote : I am getting the following exception: | | 08:18:25,820 ERROR [CacheMarshaller210] Unknown Magic Number 97 | 08:18:25,821 ERROR [RpcDispatcher] exception marshalling object | java.lang.Exception: Unknown magic number 97 | ... | Regards, | Dor View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4159764#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...