How About Free servlet/JSP Hosting?
OK, this isn't related to CFMX directly, but if you wanted to have free hosting for JSP/servlet on a server other than CFMX, check out http://www.mycgiserver.com. This could be useful if you wanted to compare how a servlet/JSP works in a server other than CFMX.
Just note that the FAQ for setting things up may not be as clear as it can be. I've posted a note in their "mycgiserver.suggestions" forum, titled "Some info missing from the FAQs" and dated 6-27-02 that may help you get started. It doesn't appear I'm allowed to provide a URL that you can use, but there is a search feature there. (You must be logged in as a member to see the forums.)