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Related to https://stackoverflow.com/questions/67923303/dynamic-registration-of-websocket-output-adapter-is-not-working By default the `AbstractHandlerMapping` comes with the `order = Ordered.LOWEST_PRECEDENCE` which sorts added mappings to the end of chain. At the same time Spring Boot registers a `SimpleUrlHandlerMapping` as a fallback for all not handled requests leaving our own mapping behind consideration * Add `order = 0` to the `IntegrationDynamicWebSocketHandlerMapping` bean registration to let it to be consulted before `SimpleUrlHandlerMapping` * Add a note into `web-sockets.adoc` that `@EnableWebsocket` would disable Spring Integration dynamic WebSocket endpoints