how to fetch date from database and set it on javafx datepicker

I am trying to fetch date from database that i have previously stored in it using datepicker but i am unable to do so . i have tried using java.sql.date but it is returning null and is not setting on the datepicker

public void usearch(ActionEvent event)
    {
        ResultSet resultSet= null;
       resultSet=dbcon.dbcon("Select * from Employees where employee_id='"+ upempid.getText() +"'");
        try {
            if(resultSet.next())
            {
                upempname.setText(resultSet.getString("Employee_name"));
                upempaddress.setText(resultSet.getString("Address"));
                upempfname.setText(resultSet.getString("father_name"));
                upempage.setText(resultSet.getString("Age"));
                upempcnic.setText(resultSet.getString("CNIC"));
                upempemail.setText(resultSet.getString("Email"));
                java.sql.Date date= resultSet.getDate("JOINING_DATE");
                System.out.println(date);
              //  upempjoining.setValue(date.toLocalDate());

                upempphone.setText(resultSet.getString("phone_number"));
                upemptype.setText(resultSet.getString("employee_type"));
                uptransportid.setText(resultSet.getString("transport_id"));

            }
        } catch (SQLException e) {
            e.printStackTrace();
        }

    }