How can I format an entire source tree in Eclipse 3.4 (Ganymede)?

Question

The obvious thing to do would be to:

1. Right-click on the folder that you wish to format.
2. Source > Format

Expected results:
- All java code in the directory and subdirectories are formatted (using the project specific formatting settings)

Actual results:
- None of the java is formatted.

While we're at it, how can we do a batch clean up operation in Eclipse?
From editor, I Right-click > Source > Clean Up, but I can only do one file at a time.