code: public static void main(String... args) {
          CommandLineRunner runner = new CommandLineRunner();
  
          try {
              runner.run(args);
          } catch (Exception t) {
              System.err.println(t.getMessage());
              System.err.println("Try '--help' for more information.");
  
              t.printStackTrace(System.err);
  
              System.exit(1);
          }
  
          System.exit(0);
      }
docs: <p>main.</p>
  
  @param args a {@link java.lang.String} object.