Besides the Jettison JAXB adapter for JSON, RESTEasy also supports integration with the Jackson project. Jackson allows you to marshal Java objects to and from JSON. It has a Java bean based model as well as JAXB like APIs.
While Jackson comes with its own JAX-RS integration, RESTEasy expands it. In order to include it in your project, add the following Maven dependency to your build:
For more information on JSON support via Jackson project, refer to http://docs.jboss.org/resteasy/docs/2.3.7.Final/userguide/html_single/index.html