How can I create a memory leak in Java?

I just had an interview where I was asked to create a memory leak with Java. Needless to say, I felt pretty dumb, having no idea how to start creating one. What would an example be?

How can I create a memory leak in Java?

I just had an interview where I was asked to create a memory leak with Java.

Needless to say, I felt pretty dumb, having no idea how to start creating one.

What would an example be?