"timfox" wrote : | This means loading all the messages and acks into the InMemoryCallback. Otherwise when you call commit(), nothing will get delivered or acknowledged in memory since you haven't loaded the data. | Can you explain the semantics of InMemoryCallback class as to what happens when a commit is called on the transaction (provided the tx has associated InMemoryCallback)? The current one in ChannelSupport depends on the ChannelSupport for delivery and other functionality. Hence I factored out the class and created it as an inner class in TransactionRepository (so the reconstitued tx will be immediately associated with the InMemoryCallaback). Also can you brief me as to what the 'Loaded' column indicate in the Message Reference table and how it is mainupulated? When do we have to upated the column? Thanks Tim View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3969651#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...