code: public String[] getStringLines(String key) {
      String value = getString(key);
      if (StringUtils.isEmpty(value)) {
        return new String[0];
      }
      return value.split("\r?\n|\r", -1);
    }
docs: Value is split by carriage returns.
  
  @return non-null array of lines. The line termination characters are excluded.
  @since 3.2