Stored proc automation with output parameters throwing error : Error converting data type nvarchar to int

I have a stored procedure

declare @p8 int
set @p8=0
declare @p9 varchar(255)
set @p9=''
exec dbo.pr_OAI_HWINTERFACE_LOG_ins @chvOperationGroupID='2445d952-3f55-49da-b067-73e218b102b3',@chvMessage="Bumping Unauthorized Spots",@dtmTargetDate="2021-06-08 00:00:00",@intOperationID=1,@intInserterID=7,@chvStatus="Started",@intDebugLevel=default,@[email protected] output,@[email protected] output
select @p8, @p9
go

Tried automating it but it keeps throwing me error com.microsoft.sqlserver.jdbc.SQLServerException: Error converting data type nvarchar to int.

Passing the JDBC connection and tried everything but just doesn’t work. Keeps throwing the same error

I don’t know what wrong am I doing

public String executeStoredProcedure(Connection con) throws SQLException {
        String columnValue = null;
        ResultSet resultSet = null;
        CallableStatement cstmt = con.prepareCall("{call MediaStar.dbo.pr_OAI_HWINTERFACE_LOG_ins(?, ?, ?, ?, ?, ?, ?, ?, ?)}");
        cstmt.setString(1, "2445d952-3f55-49da-b067-73e218b102b3");
        cstmt.setString(2, "Bumping Unauthorized Spots");
        cstmt.setString(3, "2021-06-08 00:00:00");
        cstmt.setInt(4, 1);
        cstmt.setInt(5, 7);
        cstmt.setString(6, "Started");
        cstmt.setString(7, "default");

        cstmt.registerOutParameter(8, Types.INTEGER);
        cstmt.registerOutParameter(9, Types.VARCHAR);
        cstmt.execute();
        int status = cstmt.getInt(8);
        if (resultSet != null) {
            try {
                resultSet.next();
                columnValue = resultSet.getString(8);
            } catch (SQLException e) {
                e.printStackTrace();
            }
        }
        System.out.println( "Value from the DB: "  + columnValue);
        return columnValue;
    }