10. ネイティブコンパイルを試みる ● Undertow ● WildFlyのWebサーバ実装 ● Java SEでも動く import io.undertow.Undertow; import io.undertow.util.Headers; public class Main { public static void main(final String[] args) { Undertow server = Undertow.builder() .addHttpListener(8080, "localhost") .setHandler(exchange -> { exchange.getResponseHeaders().put(Headers.CONTENT_TYPE, "text/plain"); exchange.getResponseSender().send("Hel