In this repository you can find the various samples I reference in my blog (http://www.clempinch.com)
This is a simple demonstration of the Apache CXF Continuations API. See: http://www.clempinch.com/async-rest-cxf-and-the-continuations-api/
The project should be built with Maven:
mvn package
You obtain a WAR to deploy a Web application sever. I tested it with Tomcat 7.0.35.
The created REST service can be accessed with a GET at:
http://[server_address]/continuation_example-0.0.1-SNAPSHOT/my_rest_service/say_hello/world