code: private static void printArgs(String[] arr) {
      Log.info("");
      Log.info("----- printArgs -----");
      for (int i = 0; i < arr.length; i++) {
        String s = arr[i];
        Log.info(i);
        if (s == null) {
          Log.info("null");
        }
        else {
          Log.info(s);
        }
      }
      Log.info("----------");
    }
docs: Under unusual debugging circumstances, it can be helpful to print out the command line arguments in this format.
  @param arr Array of command-line arguments.