Spring AI WebClientCustomizer cannot work in mcp project

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Expected Behavior

org.springframework.web.reactive.function.client.WebClient could be customized by WebClientCustomizer interface when introducing mcp client starter

        <dependency>
            <groupId>org.springframework.ai</groupId>
            <artifactId>spring-ai-mcp-client-webflux-spring-boot-starter</artifactId>
        </dependency>

Current Behavior

WebClientCustomizer is ignored

Context

WebClient.Builder bean is defined in SseWebFluxTransportAutoConfiguration as

    public WebClient.Builder webClientBuilder() {
        return WebClient.builder();
    }

which override the default bean definition in WebClientAutoConfiguration

    public WebClient.Builder webClientBuilder(ObjectProvider<WebClientCustomizer> customizerProvider) {
        WebClient.Builder builder = WebClient.builder();
        customizerProvider.orderedStream().forEach((customizer) -> customizer.customize(builder));
        return builder;
    }

Comment From: tzolov

@wwulfric thank you for raising this issue. I believe this PR will resolve it: https://github.com/spring-projects/spring-ai/pull/2444