I dont know if Im getting this error because of something Ive done/not
done, or if Netbeans is just being silly. In my source package, I've got
the following classes:
Test.java
TuioClient.java
TuioObject.java

I also have TuioListener.java, which is an interface. I've also got a
zipped folder with several more sources. I've got this folder in both
the source packages in netbeans, as well as under the Libraries in
netbeans.

Test is my main. These are my first few lines:

import javax.swing.*;
import java.awt.geom.*;
import java.awt.*;
import java.awt.event.*;
import java.util.*;
public class Test extends JComponent implements TuioListener{}

NetBeans is underlining that last line, telling me that,
"Test is not abstract and does not override abstract method refresh() in
TuioListener"

What can I do about this?