Wicket is a Java web application framework that takes simplicity,
separation of concerns and ease of development to a whole new level.
Wicket pages can be mocked up, previewed and later revised using
standard WYSIWYG HTML design tools. Dynamic content processing and
form handling is all handled in Java code using a first-class
component model backed by POJO data beans that can easily be persisted
using your favourite technology. New features include:

* Simplified feedback and validation - enables custom feedback
strategies
* Live Component Reference - the examples project contains a
component reference showing how to use the components.
* JavaScript and CSS support for components - contribute
JavaScript and CSS from your component to the using page
* Markup Inheritance - enables template pages and components
* Inclusion of external markup
* Simplified Choice component - creating drop down, radio and list
components was never this easy
* Less dependencies - we removed several library dependencies
* Customizable Form handling - easy for quick forms, easily
enables full custom form processing
* Improved resource handling
* Date picker component - will not get you dates, but a JavaScript
and text field enabled localized calendar component.
* Improved URL handling
* AJAX request handling support - support for two leading AJAX
JavaScript libraries is available as separate downloads from Wicket
Stuff project: scriptaculous and DOJO toolkit

Wicket homepage can be found at : http://wicket.sourceforge.net