Image in JApplet

Question

I am trying to display an image in a JApplet. I am trying to load an image, then draw it. However, I keep getting the following error when I try to initialize my BufferedImage red:

java.lang.IllegalArgumentException: input == null!
    at javax.imageio.ImageIO.read(ImageIO.java:1362)
    at Pathfinder.init(Pathfinder.java:15)
    at sun.applet.AppletPanel.run(AppletPanel.java:425)
    at java.lang.Thread.run(Thread.java:662)

It was originally in a resources folder, but I was getting the same error. I tried it in a SwingUtilities.invokeAndWait(new Runnable() { ..., but it still did not work. Any ideas what is wrong? My program is as follows:

import java.applet.Applet;
import java.awt.Graphics;
import java.awt.image.BufferedImage;
import java.io.IOException;

import javax.imageio.ImageIO;

@SuppressWarnings("serial")
public class Pathfinder extends Applet {
    private BufferedImage red;

    @Override
    public void init() {
        try {
            red = ImageIO.read(this.getClass().getResource("red.png"));
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
    }

    @Override
    public void paint(Graphics g) {
        g.drawImage(red, 0, 0, null);
    }
}

red.png exists in the uppermost level of my project.