I have configured a Spring Gateway service with Spring security enabled and oauth2 configured. I can perform the login and logout without any issue, even a custom LogoutSuccessHandler, until I configure exceptionHandling.authenticationEntryPoint.

This is the configuration that is not working:

    @Bean
    fun dsl(
        http: ServerHttpSecurity,
        rcrr: ReactiveClientRegistrationRepository,
    ): SecurityWebFilterChain =
        http.invoke {
            authorizeExchange {
                authorize("/logout", permitAll)
                authorize("/token", permitAll)
                authorize(anyExchange, authenticated)
            }
            oauth2Login {}
            oauth2ResourceServer { jwt {} }
            // If I remove this configuration below the logout works fine
            exceptionHandling {
                authenticationEntryPoint = HttpStatusServerEntryPoint(HttpStatus.UNAUTHORIZED)
            }
            logout {
                logoutSuccessHandler = KeycloakServerLogoutSuccessHandler(rcrr, realm, keycloakURI, redirectURI)
            }
            cors {
                configurationSource = corsConfigurationSource()
            }
        }

When I try to call to /logout endpoint I get a 404 code, so the authenticationEntryPoint is not in causing the issue directly. I know that I can create a custom logout rest endpoint and configure everything, but I would like to use the default one

How can I have these two configurations together?
Or what is the reason of this incompatibility?