Java Swing Thumbnail View of Collada File

I have a swing application in which users will select a collada file. When they select one, I would like to show a thumbnail view of the file next to the filename. I have been able to generate classes to read files via jaxb. I am looking for pointers to open source java to display a small view of the file in swing. How do I dynamically convert it into something I can display in java? Samples?

Have you played with lightbox at all?