code: public static void main(String[] args) throws Exception {
      if (args.length > 1 || (args.length == 1 && !"-v".equals(args[0]))) {
        System.out.println("USAGE: TransactionServiceClient [-v]");
      }
  
      boolean verbose = false;
      if (args.length == 1 && "-v".equals(args[0])) {
        verbose = true;
      }
      doMain(verbose, new ConfigurationFactory().get());
    }
docs: Utility to be used for basic verification of transaction system availability and functioning
  @param args arguments list, accepts single option "-v" that makes it to print out more details about started tx
  @throws Exception