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Spring provides @Qualifier annotation to refer correct bean while doing autowiring. Suppose we have interface IService which has two concrete implementation. When we try to Autowire IService object in any other class it will throw exception as there are two beans. Spring Qualifier is used in such situation to place object of correct implementation class to autowired object.   Now, above iservice object will hold object of IServiceImplTwo class.

Spring framework provides annotation based configuration for dependency injection. Normally, MessageListener  interface needs to be implemented in Queue/Topic receiver class for incoming messages. The overridden onMessage method in that class handle the incoming message. Spring provides below annotations to enable jms communication. @JmsListener  annotation can mark any method to handle message.  @EnableJms  annotation to detect and register  @JmsListener  methods for jms messages. Below is class to handle jms message. @JmsListener requires default jms container factory configuration. Add below lines in bean conf file for this. Please refer this post for conf file. Deploy war file to JBoss server and send sample message from Gems tool.