JBoss RESTful Web Services is a framework developed as a part of the JBoss Application Server. It implements the JAX-RS specifications. JAX-RS (Java API for RESTful Web Services) is a Java API that supports the creation of Representational State Transfer (REST) web services, using annotations.

JBoss RESTful Web Services integrates with most current JBoss Application Server releases as well as earlier ones, that did implement the J2EE 1.4 specifications.

RESTful Web Services tooling works with JBossWS Runtime and allows you to create, deploy and run RESTful Web Services

Also JBossWS Tool gives a way to test a web service running on a server.