"timfox" wrote : XA spec, section 3.3: | | anonymous wrote : | | RMs in the DTP environment should anticipate that many threads will try to use | | them concurrently. If multiple threads use an RM on behalf of the same XID, the | | RM is free to serialise the threads’ work in any way it sees fit. For example, an RM | | may block a second or subsequent thread while one is active. | | | I translate that as we should synchronize the calls, protecting it for multi-threading while using the same XID... correct? View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4217454#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...