Unable to register to a NotificationBroadcaster based on an @Service xmbean in JBoss EAP

Issue

• We created an NotificationBroadcaster MBean, using a @Service anntotation with an xmbean definition such as

  @Service(objectName="test:name=testmbean", xmbean="resource:META-INF/test-xmbean.xml")
  public class TestMBean extends NotificationBroadcasterSupport implements ITestMBeanEJB{...
  

But, attempting to register the listener results in

java.lang.IllegalArgumentException: The MBean test:name=testmbean
exists but does not implement the NotificationBroadcaster interface.

• Is there a way to get notifications to work using the @Service method?