Restlet is a REST framework for Java. It supports all REST concepts (Resource, Representation, Connector, Component, etc.) and is suitable for both client and server Web applications. It supports major Web standards like HTTP, SMTP, XML, JSON, WADL, and Atom. Many extensions are also available to integrate with Servlet, Spring, Jetty, Grizzly, Simple, JAXB, JAX-RS, JiBX, Velocity, or FreeMarker. A GWT version is also available. License: GNU Lesser General Public License (LGPL) Changes:
Better HTTP support (partial downloads, resumable uploads, or content integrity validation). Full support for WADL with automatic and always in sync documentation of REST APIs. A very complete implementation of JAX-RS 1.0. A new Restlet-GWT module. New extensions for JAXB 2.1, JiBX 1.1, Spring 2.5, OAuth, OSGi, Oracle XDB, and SSL. Improved support for Atom and APP. A new POP3 connector. A new Grizzly NIO HTTP server connector. A new internal HTTP client and server connectors.