*/
public MendozaCommandResult changeMerchant(final MendozaRequest request) {
log.trace("Entering changeMerchant");
MendozaChangeMerchantCommand command =
new MendozaChangeMerchantCommand(request, this, serverState);
command.execute();
initBuyerRobot();
if (buyerRobot == null) {
throw new RuntimeException("Cannot init buyer robot.");
}
log.trace("Leaving changeMerchant");