getHandlerInternal repeated lookup for HandlerMethod

[ShijunDeng]

when spring-boot-starter-actuator imported to my project ：

there are 6 members in org.springframework.web.reactive.DispatcherHandler#handlerMappings. Part of those HandlerMappings are subclass of org.springframework.web.reactive.result.method.RequestMappingInfoHandlerMapping, which caused repeated call of org.springframework.web.reactive.result.method.AbstractHandlerMethodMapping#getHandlerInternal to lookup HandlerMethod.

• AdditionalHealthEndpointPathsWebFluxHandlerMapping

• WebFluxEndpointHandlerMapping

• ControllerEndpointHandlerMapping

and so on.

this is my solution: #29589

[rstoyanchev]

I don't understand what the problem is. Each HandlerMapping has its own registrations, and HandlerMappings are invoked in order until one of them returns a match. If the second is called, it means the ones before didn't find a match. Or, if the first one finds a match, then the second one is not called.

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