Wolf-Dieter Fink [http://community.jboss.org/people/wdfink] replied to the discussion "JDBC inside CMT" To view the discussion, visit: http://community.jboss.org/message/557826#557826 -------------------------------------------------------------- How do you connect? Do you use a connection out of JBoss connection pool? If you use plain JDBC, JDBC-connection-parameter and connection handling within the MDB, the DB access will be commited directly after the SQL-statement. This is without respect whether the MDB call is successful or not (and might not what you want). If you have to use plain JDBC, use a DataSource and set the MDB CMT to REQUIRED. In this case the action is only commited if the MDB return without an exception. -------------------------------------------------------------- Reply to this message by going to Community [http://community.jboss.org/message/557826#557826] Start a new discussion in Beginner's Corner at Community [http://community.jboss.org/choose-container!input.jspa?contentType=1&...]