I described the background to this JSR in an earlier blog entry. In short, it serves two purposes:
This Early Access Release is part of a formal Early Draft Review in the Java Community Process. The draft specification is available for study and comment. Send any comments to firstname.lastname@example.org. The formal review period ends on the 23rd of May, but feel free to send comments at any time. Of course the sooner you send comments, the more likely you will be able to influence the final specification.
An early version of the Reference Implementation (RI) is also available for download. We are very interested in your experiences with it. The best address to send questions and comments on the RI is email@example.com. You'll need to join this list before you can send messages to it.