Well, REST *is* the technology, and the Jersey library (on dev.java.net) is the reference implementation of the JAX-RS API (which is the standard Java API for RESTful web services). Jersey comes numerous code examples ranging from the simple to the complex. You don't need anything else besides its various support libraries to use it in a web app.
Hi Ulf Dittmer,
Thank you very much for your reply. Yes i found sample in jersey.
i downloaded jersey, executed sample /hello and /contacts.
then what is use of WADL here, how can i use WADL in this..