如何在JAX-RS REST Web服务中注入JMS资源？

Question

Using GlassFish 3.1.2.1, I have configured a JMS connection factory and a queue, which can be injected in JavaServer Faces managed beans using the @Resource annotation.

However when I try to use these JMS resources in a JAX-RS REST web service in the same project, the connectionFactory injection seems to be missing and there is a NullPointerException when the line is executed:

connection = exampleQueueFactory.createConnection();

The injection code is

@Resource(mappedName = "ExampleQueue")
private Queue exampleQueue;
@Resource(mappedName = "ExampleQueueFactory")
private ConnectionFactory exampleQueueFactory;

and as I successfully use the same injection in JSF managed beans I guess that the GlassFish server skips the JAX-RS classes when looking for injection points. Is there additional configuration missing?

Answer 1

Based on the answer to NullPointer in Glassfish when inject JMS @Resource I added a @javax.ejb.Stateless annotation and it works.

Follow-up question: is this the recommended way to enable injection of JMS resources in a JAX-RS resource class?