all that you need is a single Java class that bridges the Wicket validation framework and the JSR 303 validation engine.
Taken from the Wicket mailing list:
> Hey folks, The Basement Coders will be at JavaOne and doing
> a podcast right http://www.phpaide.com/?langue=fr&id=16 from the Mason street tent Tuesday at
> 10am! We would love to meet some Wicket peeps
> throughout the week!