Master of time

I think this comment is unintentionally very amusing:

/**
 * {@code MyTimer} manages time.<br>
 * <b>Collaborations:</b><br>
 * <i>none</i>
 */
public class MyTimer extends JLabel implements ActionListener {
   // ...
}

Supposed to be funny?

I found this comment within a solution to an exercise, which was meant to instruct on formulating an object invariant:

// invariant: we don't guarantee anything