When is TransferHandler.getVisualRepresentation() used?

I'm playing around with Swing DnD. I've implemented a TransferHandler to provide DnD capability to reorder a JList. While implementing the appropriate methods, I came across getVisualRepresentation(). I can't figure out where this is used. I did a search through the source code for my JRE and can't find a single use of this method. What is the expected use of this?

[378 byte] By [codebooka] at [2007-11-27 9:49:33]