Adrian Brock [http://community.jboss.org/people/adrian%40jboss.org] replied to the discussion "MDB - JCA Transaction issue" To view the discussion, visit: http://community.jboss.org/message/534894#534894 -------------------------------------------------------------- It looks to me like hornetq is returning the wrong error code? So you'd be better off moving your discussion to that forum. XAER_RMERR is for a resource error inside the transaction, meaning the transaction is in unknown state and can't be committed. I think it should be using XAER_RMFAIL if the problem is a failure to enlist? But ask in the transactions forum what the correct code should be, since they are the ones that interpret them. -------------------------------------------------------------- Reply to this message by going to Community [http://community.jboss.org/message/534894#534894] Start a new discussion in JCA at Community [http://community.jboss.org/choose-container!input.jspa?contentType=1&...]