JWt (Java Web Toolkit) is a library for developing accessible and interactive Web applications with an API that is widget-centric and inspired by desktop GUI APIs. To the developer, it offers abstraction of Web-specific implementation details, including graceful degradation. Under the hood, the library uses the latest techniques when available to handle events and update the user interface.

Changes:
Twitter Bootstrap was adopted as a new theme in addition to the existing CSS-based themes. As a result, several new widgets were added (toolbar, navigation bar, split button, and date edit) and improved (menus and popup menus). The widget gallery has undergone a complete rework

URL:
JWt – Freecode