@Setup(Level.Trial)
    public void startServer() {
        server = Server.builder()
                       .service("/health", (ctx, req) -> OK.toHttpResponse())
                       .build();
        server.start().join();
    }
Microbenchmarks of a {@link com.linecorp.armeria.client.endpoint.dns.DnsAddressEndpointGroup}.
benchmarks/jmh/src/jmh/java/com/linecorp/armeria/core/client/endpoint/DnsEndpointGroupBenchmark.java