docs: private static boolean checkAboutNormalization(String args[]) {
      boolean normalize = false ;
      if (args.length == 4) {
        if (args[3].equals("TRUE")) {
          normalize = true;
        } else if (args[3].equals("FALSE")) {
          normalize = false;
        } else {
          throw new JMetalException("The value for normalizing must be TRUE or FALSE");
        }
      }
  
      return normalize ;
    }