docs: public static String convertClassNameToUnderscoreName(String name) {
          StringBuilder result = new StringBuilder();
  
          if (name != null) {
              int len = name.length();
  
              if (len > 0) {
                  result.append(name.charAt(0));
  
                  for (int i = 1; i < len; i++) {
                      if (true == Character.isUpperCase(name.charAt(i))) {
                          result.append('_');
                      }
  
                      result.append(name.charAt(i));
                  }
              }
          }
  
          return result.toString().toUpperCase();
      }