I think you're making this more complex than it needs to be: I'd probably do something like the following, let's say you've added a method to get an iterator on the queue, then you just need to write a bit of code that does this (pseudocode) | Iterator iter = queue.iterator(); | | while (iter.hasNext()) | { | MessageReference ref = iter.next(); | HandleStatus status = consumer.handle(ref); | if (status == HandleStatus.BUSY) | { | break; | } | } | | put that in a Runnable and call it when a) the browser is first created and b) when promptdelivery is called on the consumer. That's it. View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4238791#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...