RESTEasy is another popular implementation of the JAX-RS specification available under the ASL (Apache) 2.0 license, which can run in any Servlet container. RESTEasy also comes with additional features on top of the plain JAX-RS functionalities. 

To seamlessly integrate the RESTEasy features, the following Maven dependencies must be configured in the project in pom.xml under the dependencies element, as shown ahead:

<!-- RESTEasy Core APIs-->
<dependency>
   <groupId>org.jboss.resteasy</groupId>
   <artifactId>resteasy-jaxrs</artifactId>
   <version>RELEASE</version>
 </dependency>
 <dependency>
    <groupId>org.jboss.resteasy</groupId>
    <artifactId>resteasy-jaxb-provider</artifactId>
    <version>RELEASE</version>
 </dependency>

<!-- RESTEasy Client APIs-->
 <dependency>
   <groupId>org.jboss.resteasy</groupId>
   <artifactId>resteasy-client</artifactId>
   <version>RELEASE</version>
 </dependency>
 <dependency>
   <groupId>org.jboss.resteasy</groupId>
   <artifactId>resteasy-jackson-provider</artifactId>
   <version>RELEASE</version>
 </dependency>

<!-- RESTEasy Cache APIs-->
 <dependency>
   <groupId>org.jboss.resteasy</groupId>
   <artifactId>resteasy-cache-core</artifactId>
   <version>RELEASE</version>
 </dependency>

In the following sections, let's take a look at some of the useful features provided by the RESTEasy framework