I encountered this problem last night when I found passivated stateful session beans failed to activate. The error message said files named **********.ser could not be found. I searched the archives and read FAQ's and thought it could be solved by increasing the life time of the bean. I modified both standardjboss.xml and the jboss.xml packed with the bean, set max-life-time, max-bean-age to 100000 for standard stateful beans. However, this didn't seem to cure the problem. Since this didn't happend to all beans, some bean instance did get passivated and activated no problem so I think the bean code should be correct. Now I am out of idea, could anyone enlighten me? Thanks
I have the same problem. I think this is a JBoss' bug.