Thanks for your reply. The problem with my Queue was that described in section 2. I did not call connection.start() method. My mistake. If we talk about books: i haven't seen any good one. I learned from Jboss wiki knowledgebase: http://wiki.jboss.org/wiki/Wiki.jsp?page=JBossMX If you have any questions just ask, but i'm not an expert, so it is possible that I won't be able to answer to your questions. Anyway, i will try :) Best regards vitor_b View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4031511#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...