"lincao123" wrote : Hi, gturner, | | Recently I got the same error while invoking remote ejb from jboss 4.0.5 to 4.2.0. Can you share your solution with me? Thanks a lot! | | Lin Sorry I have no work-around, we decided to postpone deployment of 4.2 servers until we commit to, what the managers refer to as, a "forklift" upgrade (we're running 187+ JBoss servers, yikes!). View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4187801#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...