How do I obtain a java.awt.Image of a JFrame?

I want to obtain a screen shot of a JFrame (for later use within my application). This is presently accomplished using the robot to take a screen shot specifying the coordinates and dimensions of the JFrame involved.

However, I believe that there is a better way: Swing components, by default, render themselves as images into a double buffer prior to painting themselves onto the screen.

Is there a way to obtain these images from the component?