Java - Problema al conectar con BBDD Access desde netbeans

package macdowells.bd;

import java.sql.Connection;

import java.sql.DriverManager;

import java.sql.ResultSet;

import java.sql.Statement;

import javax.swing.JOptionPane;

/**

 *

 * @author portatil

 */

public class GestionSql {

    Connection conexion;

    public static String user="admin";

    public static String pass="1234";

    public static String driver="sun.jdbc.odbc.JdbcOdbcDriver";

    public static String pathBD="C:\\Users\\portatil\\Documents\\MacDowells_DB.accdb";

    public static String servidor="jdbc:odbc:Driver={Microsoft Access Driver (*.accdb)};DBQ="+pathBD;

    public void CargarDriver(){

        try{

            Class.forName(driver);

        }catch(Exception e){

            JOptionPane.showMessageDialog(null, e);

        }

    }

    public void CargarBD(){

        try{

            conexion=DriverManager.getConnection(servidor, user, pass);

        }catch(Exception e){

            JOptionPane.showMessageDialog(null, e);

        }

    }

}

Connection src = DriverManager.getConnection("jdbc:odbc:Driver={Microsoft Access Driver (*.mdb, *.accdb)};DBQ=" + catalog);