Here is a JSP version of the server-side script needed for the CKEditor plugin for aspell.
It was inspired by/based upon a post in the forums. I've made some mods to get it to work, be more complete, and be more like the current perl version, with fixes recommended in the main thread. It's not fully tested but hopefully it will help somebody.
Note that for best results, you will need Apache Commons Lang. You can comment out that code but then you'll get false-positive misspellings of partial words before and after the HTML entities.
Install the attached file as