code: JsTopicMessageController getJsTopicMessageControllerFromJsTopicControl(String topic) {
  		logger.debug("Looking for messageController for topic '{}' from JsTopicControl annotation", topic);
  		Instance<JsTopicMessageController<?>> select = topicMessageController.select(new JsTopicCtrlAnnotationLiteral(topic));
  		if(!select.isUnsatisfied()) {
  			logger.debug("Found messageController for topic '{}' from JsTopicControl annotation", topic);
  			return select.get();
  		}
  		return null;
  	}
docs: Get jstopic message controller from JsTopicControl
  @param topic
  @return