docs: @Override
  	public String asString(Object object) {
  		// at this point object is guaranteed to be a Locale instance
  		Locale locale = (Locale) object;
  		StringBuilder builder = new StringBuilder(5);
  		builder.append(locale.getLanguage());
  		builder.append('-');
  		builder.append(locale.getCountry());
  		return builder.toString();
  	}