code: public String stringValue(Date date) {
  		String value = null;
  		if (date != null) {
  			SimpleDateFormat sdf = formatters.get(0);
  			synchronized (sdf) {
  				value = sdf.format(date);
  			}
  		}
  		return value;
  	}
docs: Get the formatted string date value of the date
  
  @param date
  date
  @return formatted string date