Jersey is the open source (under dual CDDL+GPL license), production quality, JAX-RS (JSR 311) Reference Implementation for building RESTful Web services. But, it is also more than the Reference Implementation. Jersey provides an API so that developers may extend Jersey to suite their needs. The governance policy is the same as the GlassFish project.
Getting started with Jersey is very easy. First, download the latest distribution of Jersey and unzip it. If you are using NetBeans IDE 6.x, you do not need to download the Jersey distribution. Instead, install the RESTful Web Services plugin from the Plu