Restful site broke after upgrading resteasy-jaxrs to the lastest version - maven

Question

I'm going through this tutorial example on RestEasy:
http://www.mkyong.com/webservices/jax-rs/resteasy-hello-world-example/
I downloaded their code and made modification so that I can deploy it to tomcat 7 and java 1.7.
If I leave the pom.xml as specified by the site,
<dependency>
<groupId>org.jboss.resteasy</groupId>
<artifactId>resteasy-jaxrs</artifactId>
<version>2.2.1.GA</version>
</dependency>
then everything appears to be fine and can be accessed through:
http://localhost:8080/RESTfulExample/rest/message/hello
However, if I were to increase the version level to 3.0.8.Final or "RELEASE",
<dependency>
<groupId>org.jboss.resteasy</groupId>
<artifactId>resteasy-jaxrs</artifactId>
<version>3.0.8.Final</version>
</dependency>
then I can't access it via the above URL. Instead, I get this message in my localhost_access_log.txt
127.0.0.1 - - [19/Aug/2014:16:02:55 -0700] "GET /RESTfulExample/rest/message/hello HTTP/1.1" 404 -
Question: Does anyone know how I can get the pom.xml to work if I really want to use RESTeasy 3.0.8.Final? I'm new to Rest.
Thanks in advance.

Answer 1

As the documentation describes you can initialize RESTeasy in a standalone Servlet 3.0 compliant container by adding this dependency:
<dependency>
<groupId>org.jboss.resteasy</groupId>
<artifactId>resteasy-servlet-initializer</artifactId>
<version>3.0.8.Final</version>
</dependency>
You should also update the web.xml with the correct Servlet version. Most of the old configuration stuff can be removed so you end up with:
<web-app xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"
version="3.0">
<display-name>Restful Web Application</display-name>
</web-app>
Last thing to do is tell RESTeasy on which path you want to map your application by adding javax.ws.rs.ApplicationPath to the MessageApplication class:
#ApplicationPath("/rest")
public class MessageApplication extends Application {
...
}