code: public List<AjaxTarget> getTargets() {
  		List<AjaxTarget> targets = getComponentModel().targets;
  
  		if (targets == null) {
  			return Collections.emptyList();
  		}
  
  		return Collections.unmodifiableList(targets);
  	}
docs: <p>
  Get the target WComponents that will be repainted as a consequence of the AJAX request.
  </p>
  <p>
  When the AJAX request is triggered only the target component(s) will be re-painted. An empty list is returned if
  no targets have been defined.
  </p>
  
  @return the target regions that are repainted in the AJAX response