SimplePortletWindowSession windowSession,
User user,
Request request) {
try {
PortletDriver portletDriver = consumerEnvironment.getPortletDriverRegistry().getPortletDriver(portlet);
BlockingInteractionResponse response = portletDriver.performBlockingInteraction(
new WSRPRequestImpl(windowSession, request, consumerEnvironment), user.getUserID());
if (response != null) {
UpdateResponse update = response.getUpdateResponse();
if (update != null) {