code: private static String stripSingleDoubleQuote(String input) {
      if (StringUtils.isEmpty(input)) {
        return input;
      }
  
      if (input.startsWith(SINGLE_QUOTE_STRING)
          || input.startsWith(DOUBLE_QUOTE_STRING)) {
        input = input.substring(1);
      }
  
      if (input.endsWith(SINGLE_QUOTE_STRING)
          || input.endsWith(DOUBLE_QUOTE_STRING)) {
        input = input.substring(0, input.length() - 1);
      }
  
      return input;
    }
docs: Strip single quote or double quote at either end of the string
  
  @return string with w/o leading or trailing single or double quote