Can't read any response with HTTPS GET request in Java

I have a problem with HTTPS requests, i want to make a very simple Java program for reading the response of a GET request. The problem is that i can't read any response, and the program prints nothing on screen.

This is the code:

import java.io.*;
import java.net.*;
import java.util.*;

import javax.net.ssl.*;


public class Test
{
  public static void main(String args[])
  {
    SSLSocket sock;
    String host = "www.example.com";

    try{
      SSLSocketFactory factory = (SSLSocketFactory) SSLSocketFactory.getDefault();
      sock = (SSLSocket) factory.createSocket(host, 443);

    }
    catch(IOException e)
    {
      e.printStackTrace();
      return;
    }

    try {

      BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(sock.getOutputStream()));
      bw.write("GET / HTTP/1.1\r\n");
      bw.write("Accept: text/html\r\n");
      bw.write("User-Agent: Mozilla/5.0 (Windows NT 6.3; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/74.0.3729.169 Safari/537.36\r\n");
      bw.write("\r\n");
    } catch (IOException e) {
        e.printStackTrace();
        return;
    }



    try{
      BufferedReader br = new BufferedReader(new InputStreamReader(sock.getInputStream()));
      StringBuffer buffer = new StringBuffer();
      String temp;      
      while((temp = br.readLine()) != null)
      {
        buffer.append(temp);
      }
      br.close();
      System.out.println(buffer);
    }
    catch(IOException e)
    {
      e.printStackTrace();
      return;
    }

  }
}

I'm using SSLSocket with SSLSocketFactory, is there any procedure that i have to do in order to get the response from the server?

First, you need to call flush() to make sure the buffered data is actually written to the socket when you're ready.

  bw.write("GET / HTTP/1.1\r\n");
  bw.write("Accept: text/html\r\n");
  bw.write("User-Agent: Mozilla/5.0 (Windows NT 6.3; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/74.0.3729.169 Safari/537.36\r\n");
  bw.write("\r\n");
  bw.flush();   // ADD THIS LINE

Secondly, you need to send valid HTTP 1.1 headers. The RFCs are quite complicated, which is another reason to rely on well-regarded existing HTTP client libraries, but there is information here and elsewhere that should help, for example this. You are missing at least a Host: header for example.