Java Beans and Enterprise Java Beans(EJBs) are building blocks to many enterprise Java applications, but there are also complementary and related bean techniques.
In a first post by Emmanuel Bernard, you can find a question and answer transcript-- including its corresponding podcast -- in which he describes Bean Validation or JSR 303.
Read or listen to Emmanuel's post 'Bean Validation for the Rest of Us – Emmanuel Bernard on JSR 303':
In a second post, Peter Muir announces the availability of the first (beta) Web Beans applications, including its primary features.
Read Peter's post: 'First Beta of Web Beans available!'