code: public Date getDate(String key) {
      	String value = get(key);
          Date result = Utils.isEmpty(value)  ? null : Utils.dateFromString(value);
      	return result;
      }
docs: Returns a Date by the key specified or null.
  Date format can be yyyy-MM-dd or yyyy-DD-mm hh:mm:ss
  See Utils.dateFromString for full list of allowed date formats