The JVM is for running Java ME.
You can develop with
Sun Java Wireless Toolkit 2.5.2 for CLDCHowever if you look at the
web site, it indicates it is a "Partner-provided evaluation platforms".
Translation, you are suppose to get it from Palm, who no longer provides it, due to restrictions causes by Access owned technology used as part of IBMs JVM. It's a strange IBM-Access-Palm relationship that is still unclear fully to me.