Responses responsesHandler = createHandler(Responses.class);
responsesHandler.setIsErrorFlow(true);
handlersChain.addHandler(responsesHandler);
handlersChain.addHandler(createHandler(PopulateErrorResponseHandler.class));
handlersChain.addHandler(createHandler(PopulateResponseStatusHandler.class));
PopulateResponseMediaTypeHandler populateMediaTypeHandler =
createHandler(PopulateResponseMediaTypeHandler.class);
populateMediaTypeHandler.setErrorFlow(true);
handlersChain.addHandler(populateMediaTypeHandler);
if (errorUserHandlers != null) {