@Override
                public void configureMessageBroker(
                    @Nonnull
                    final MessageBrokerRegistry config) {
                    config.enableSimpleBroker(QRAuthenticationConstants.QR_SIMPLE_BROKER_DESTINATION_PREFIX);
                    config.setApplicationDestinationPrefixes("/qr");
                }
This is {@link CasQRAuthenticationAutoConfiguration}.

@author Misagh Moayyed
@since 6.3.0
support/cas-server-support-qr-authentication/src/main/java/org/apereo/cas/config/CasQRAuthenticationAutoConfiguration.java