I am looking at porting this to JBM. This seems fairly straightforward, however I have a question regarding the JBoss MQ implementation. AFAICT when internalAddMessage() is called on BasicQueue and the scheduledDelivery attribute is set and in the future then a timeout will be added to actually add the message at a future time. This will be called when a message is NACKed, which occurs under different situations, in particular when a tx is rolled back. Looking at the implementation of session.recover() I can see that it always try to redeliver to local consumers first - in which case a redelivery delay *will not* occur. Is this desired behaviour? I would have thought we want a redelivery delay for transaction rollback *and* session recovery, not just transaction rollback. Comments? View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3997040#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...