Date d = (Date) parse_sdf.parseObject(str);
java.util.Date d = (java.util.Date)parse_sdf.parseObject(str);
  public static Timestamp valueOf(String str)  {    try      {	Date d = (Date) parse_sdf.parseObject(str);	if (d == null)	  throw new IllegalArgumentException(str);	else	  return new Timestamp(d.getTime());      }    catch (ParseException e)      {	throw new IllegalArgumentException(str);      }  }