return configurer;
}
@Bean
public WebSocketMessageBrokerStats webSocketMessageBrokerStats() {
AbstractBrokerMessageHandler relayBean = stompBrokerRelayMessageHandler();
StompBrokerRelayMessageHandler brokerRelay = (relayBean instanceof StompBrokerRelayMessageHandler ?
(StompBrokerRelayMessageHandler) relayBean : null);
// Ensure STOMP endpoints are registered
stompWebSocketHandlerMapping();