"clebert.suconic(a)jboss.com" wrote : If you look at StreamUtils we are converting any List (or any Map) to ArrayList and HashMap. | | that means if an user is using any special list (such as Vector, or any other custom lists) we are converting them to those maps. | | | Because of this, I'm changing MessageSupport::getPayloadAsByteArray to call Streamutils.writeObject with containerTypes=false. I don't think that's a good fix.If you do that it's going to use Java serialization for other message types too. We *only* want to use Java serialization for Object messages, not for other messages like map messages. A better fix is to override getPayloadAsByteArray on the Objectmessage. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4101468#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...