Also, some more comments. I don't like the naming of the parameter "retry". Why retry? How about "checkForDuplicates" or "check"? When sending a transaction ans check=true, there is no need to check if every reference exists in the database, you only need to check one of them. After all, it is a transaction. If the first one made it, they all made it. This is inefficient otherwise. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4012328#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...