i have set up the jboss4.0 jboss-head. i want to finish a distributed transaction that bypass two j2ee platform.jboss and websphere by jca adapter and xa specification. I want to know i will configure the xadatasource and jca adapter. How can let the ejb on jboss access the other ejb on websphere in the same global transaction? my project 's function is transfer 100$ from db2 to oracle.I wish someone can give me an adapter bases xatransaction? thanks!