return (java.sql.Date) src;
        }
        if (src instanceof Date) {
            return new java.sql.Date(((Date) src).getTime());
        }
        if (src instanceof Calendar) {
            return new java.sql.Date(((Calendar) src).getTimeInMillis());
        }
        final String str = src.toString();
        if (isEmpty(str)) {
            return null;
        }