Java 9 no class definition exception

Question

So i want to try the http client

package com.company;

import jdk.incubator.http.HttpClient;

public class Main {

public static void main(String[] args) {
          


        

Answer 1

works fine for me if I use --add-modules jdk.incubator.httpclient as the start-up parameter.

HttpClient client = HttpClient.newHttpClient();
client.executor().execute(() -> System.out.println("Here")); // prints Here

If you say that your module requires it, does not mean it will be included; at it is not included by default.