Using @Resource Annotations in Enterprise Bean or Web Components

When you use the @Resource annotation in an application client component, you normally declare the JMS resource static:

@Resource(lookup = "jms/ConnectionFactory")
private static ConnectionFactory connectionFactory;

@Resource(lookup = "jms/Queue")
private static Queue queue;

However, when you use this annotation in a session bean, a message-driven bean, or a web component, do not declare the resource static:

@Resource(lookup = "jms/ConnectionFactory")
private ConnectionFactory connectionFactory;

@Resource(lookup = "jms/Topic")
private Topic topic;

If you declare the resource static, runtime errors will result.