throw new XAException("rollback called with unknown transaction");
System.out.println("____________WARNING_____________"); System.out.println("____________WARNING_____________"); System.out.println("rollback called with unknown transaction"); System.out.println("____________WARNING_____________"); System.out.println("____________WARNING_____________"); return;
    public void rollback(Xid id) throws javax.transaction.xa.XAException {        log.println("rollback called: " + id);        if (mcf.lookupXid(id) == null) {            throw new XAException("rollback called with unknown transaction");        }        if (mcf.lookupXid(id) == currentTr) {            throw new XAException("rollback called with current xid");        }        mcf.rollback(id);    }