运行此程序时出现错误：

1. cs = getCon1().prepareCall("{CALL SaveLabourWageDetails(?,?)}");

2. cs.setString(1, user.getUserId());

3. cs.registerOutParameter(2, java.sql.Types.INTEGER); //<--- ERROR at this line

4. cs.execute();

5. String lastIsertId=cs.getString(2);

存储过程为：

CREATE

    PROCEDURE `cheque_alert`.`SaveLabourDetailsHead`(IN wage_entered_by VARCHAR(10),OUT LastInsertId INT)

    BEGIN
    INSERT INTO `cheque_alert`.`labour_wage_head`
            (
             `wage_entered_by`,
             `entered_date_time`)
    VALUES (wage_entered_by,
         NOW());

          SELECT LAST_INSERT_ID() INTO LastInsertId;

    END$$

DELIMITER ;

请指出此代码中的问题。