Stress.java

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;

/**
 * @author Mehdi_Maick
 **/
public class Stress {
    static final String BASE = "";

    public String sendRequest(String urlToRead) throws Exception {
        StringBuilder result = new StringBuilder();
        URL url = new URL(urlToRead);
        HttpURLConnection conn = (HttpURLConnection) url.openConnection();
        conn.setRequestMethod("GET");
        BufferedReader rd = new BufferedReader(new InputStreamReader(conn.getInputStream()));
        String line;
        while ((line = rd.readLine()) != null) {
            result.append(line);
        }
        rd.close();
        System.out.println("thread " + Thread.currentThread().getName() + " done !");
        return result.toString();
    }

    public static void main(String[] args) throws Exception {
        ExecutorService executorService = Executors.newFixedThreadPool(50);
        for (int i = 0; i < 1000; i++) {
            executorService.submit(() -> {
                try {
                    new Stress().sendRequest(BASE);
                } catch (Exception e) {
                    e.printStackTrace();
                }
            });
        }
    }
}