Propagate transaction from Jboss AS7.x to Jboss AS4.x

Hi,

Issue is with in transaction.

My setup:
Client -> Jboss 7.1.1(EJB3) -> Jboss 4.3.0 (EJB2.1)

Application from Jboss 7.1.1 should open transaction, call several api calls to Jboss 4.3.0. In successful case commit transaction, in error case rollback it.

Now transaction on Jboss 7 is started, but it independent with Jboss 4 transaction. Jboss 4 for every call open his local transaction.

For start transaction I use UserTransaction.