code: @Override
    public MessageFormat resolveCode(String code, Locale locale) {
      String resolved = resolveCodeWithoutArguments(code, locale);
      if (resolved == null) {
        return null;
      }
      return createMessageFormat(resolved, locale);
    }
docs: Looks up the {@link MessageFormat} for a code.
  
  @param code the code to look up
  @param locale the {@link Locale} for which the code should be looked up
  @return newly created {@link MessageFormat}