Millstone is Web user-interface component library for Java programmers. It lets you program user interfaces on the server side in a clean, object-oriented manner without getting your hands dirty with XHTML, CSS, JavaScript, and browser incompatibilities. However, working on those lower levels is also supported. Commercial support is offered for the library and it is in active use by many of large enterprise applications and software products. The API has been stable since year 2002 and support for new browser technologies is actively developed.
Vaadin is a Web application framework for Rich Internet Applications (RIA). In contrast to Javascript libraries and browser-plugin based solutions it features a server-side architecture, which means that the majority of the logic runs on the servers. AJAX technology is used on the browser side to ensure a rich and interactive user experience. Vaadin is a big collection of UI components. There are server-side components like Button, Table, and Tree that you use to compose the application user interface. The components use events, listeners, and data binding to communicate with each other and the business logic. Vaadin is a robust architecture for rapid application development. The component-based architecture together with the data binding features help you to build applications that are easily modularized and refactored as needed.
Or go directly to Vaadin web-site: http://vaadin.com/
IT Mill Toolkit name has changed - the versions starting from 6 are called Vaadin. See Vaadin project in freshmeat.
A set of tools and libraries to access human-editable text-based databases called recfiles.