IT Mill Toolkit is a server-side RIA (Rich Internet Application) library that provides a versatile set of AJAX widgets for Java programmers. Applications are programmed in Java and executed server-side. At the client-side (i.e. in the browser), enhanced GWT widgets are used for presentation.
Salsa is a collection of Swing add-ons. It includes new widgets such as auto-complete textboxes or tree tables, new data models such as XML tree models, UI tree models, or Java Bean table models, new common dialogs such as a font chooser, new convenience methods such as center frame on screen, and much more.
RIFE/Laszlo is based on RIFE/Jumpstart and geared towards easily getting started with the creation of Rich Internet Applications using OpenLaszlo. It is a ready-to-run source distribution and file structure that allows you to get started with a new OpenLaszlo application with RIFE in less then 2 minutes. Typically, all that you have to do is unzip the archive, open the project file in your favourite IDE, and run the application. Thanks to a dynamic development model, you rarely have to restart, and are able to gradually implement your application in an iterative manner.
The WSO2 Mashup Server is a platform for creating, deploying, and consuming Web services Mashups in the simplest fashion possible. It features support for consuming and deploying services using dynamic scripting languages, trivial deployment and redeployment, automatic and UI-based generation of Web services artifacts (e.g., wsdl, schema, policy), a set of gateways into a variety of information sources, including SOAP and POX/REST Web services, as well as plain old Web pages, and human-consumable results through a variety of user interfaces, including Web pages, portals, email, Instant Messenger services, Short Message Service (SMS), etc.