@Bean
        public ArmeriaServerConfigurator serverConfigurator() {
            return sb -> sb.decorator(LoggingService.newDecorator());
        }
Integration test for <a href="https://docs.spring.io/spring-framework/reference/web/webflux/controller/ann-methods/matrix-variables.html">Matrix Variables</a>.
spring/boot3-webflux-autoconfigure/src/test/java/com/linecorp/armeria/spring/web/reactive/MatrixVariablesTest.java