Hello, I ran into something like this a while ago (when using Seam 1.0.1) and ended up using | import org.jboss.annotation.ejb.SerializedConcurrentAccess; | .... | @SerializedConcurrentAccess | This fixed my exceptions and I have had no probs so far after adding it. Is this equivalent to @Syncrhonized? , or should I switch to the latter? I have had no trouble (that I know of) in Seam 1.0.1; I just upgraded to 1.1.0. & all still seems OK..... Thanks, PdP View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3998184#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...