Sun Java Studio Creator is based on Java Server Faces technology. One of the design goal of JSF is
8. Automatic Generation of output containing required hooks for supporting accessibility, as defined by WAI.
http://www.jcp.org/en/jsr/detail?id=127
That said, it is up to the web application author to make sure the Web Content Accessibility Guidelines are incorporated in to the application correctly
http://www.w3.org/TR/WCAG20-GENERAL/
- Winston
http://blogs.sun.com/roller/page/winston?catname=Creator