* @param tuid transaction id to verify
*/
public Map verifyTransaction(TransactionUID tuid)
throws BrokerException
{
TransactionHandler handler = (TransactionHandler)
pr.getHandler(PacketType.START_TRANSACTION);
TransactionList translist = handler.getTransactionList();
TransactionState ts = translist.retrieveState(tuid, true);
if (ts == null) return null; // GONE
int realstate = ts.getState();
if (realstate != TransactionState.PREPARED) {