Rectangle.add(Point) does not add the point to the rectangle

Rectangle.add(Point) does not add the point to the rectangle
Same problem with Rectangle.add(int, int).

Steps to reproduce
Compile the following code
Run RectAdd.class

/* Rectangle.Add() tests
 * @(#)RectAdd.java 1.1 07 Nov 1995 17:17:54
 * @author Kevin A. Smith
 *
 */

import java.applet.Applet;
import java.awt.*;
import java.lang.Boolean;

public class RectAdd extends Applet
{
    Rectangle r1 = new Rectangle(20, 10, 60, 60);
    Rectangle r2 = new Rectangle(70, 50, 60, 60);
    Point pt = new Point(150, 150);
    int outerX = 200;
    int outerY = 200;

    public void init()
    {
       resize(400, 400);
    } // end init()


    public void paint(Graphics g)
    {
       // local variables
       Rectangle rWithPt = (Rectangle) r1.clone();
       Rectangle rWithRect = (Rectangle) r1.clone();
       Rectangle rWithInt = (Rectangle) r1.clone();

       // draw rectangle 1
       g.setColor(Color.red);
       g.fillRect(r1.x, r1.y, r1.width, r1.height);

       // draw rectangle 2
       g.setColor(Color.blue);
       g.fillRect(r2.x, r2.y, r2.width, r2.height);

       // Rectangle.add(Rectangle) test
       // should draw a yellow line around the far edges of both
       // rectangles
       g.setColor(Color.yellow);
       rWithRect.add(r2);
       g.drawRect(rWithRect.x,
                  rWithRect.y,
                  rWithRect.width,
                  rWithRect.height);

       // draw point
       g.setColor(Color.black);
       g.fillOval(pt.x - 2, pt.y - 2, 3, 3);

       // Rectangle.add(Point) test
       // should draw a magenta line around the rectangle and the
       // point
       rWithPt.add(pt);
       g.setColor(Color.magenta);
       g.drawRect(rWithPt.x, rWithPt.y, rWithPt.width, rWithPt.height);

       // draw integers
       g.setColor(Color.black);
       g.fillOval(outerX - 2, outerY - 2, 3, 3);

       // Rectangle.add(int, int) test
       // should draw a green line around the rectangle and the
       // drawn point
       rWithInt.add(outerX, outerY);
       g.setColor(Color.green);
       g.drawRect(rWithInt.x, rWithInt.y, rWithInt.width, rWithInt.height);

    } // end paint()

    public static void main(String args[])
    {
       Applet a = new RectAdd();
       a.init();
       a.start();

       AppFrame f = new AppFrame("Rectangle.add() Tests");
       f.add(a);
       f.resize(400, 400);
       f.show();
    }

}

/* Generic Application Frame
 * @(#)AppFrame.java 1.1 07 Nov 1995 17:17:55
 * @author Kevin A. Smith
 */

import java.awt.Frame;
import java.awt.Event;

class AppFrame extends Frame
{
    public AppFrame(String name)
    {
       super(name);
    }

    public boolean handleEvent(Event e)
    {
       if (e.id == Event.WINDOW_DESTROY)
       {
          System.exit(0);
          return true;
       }
       else
          return super.handleEvent(e);
    }
}