if (log.isDebugEnabled()) { log.debug("rollback called: " + id); }
log.debug("rollback called: " + id);
    public void rollback(Xid id) throws javax.transaction.xa.XAException {       if (log.isDebugEnabled())        {          log.debug("rollback called: " + id);       } // end of if ()        if (mcf.lookupXid(id) == null) {            log.warn("rollback called with unknown transaction: " + id);            return;        }        if (mcf.lookupXid(id) == currentTr) {            throw new XAException("rollback called with current xid");        }        mcf.rollback(id);    }