B4J Question [SOLVED] Java server socket and B4J socket client

import java.io.BufferedReader;
import java.io.DataInputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.ServerSocket;
import java.net.Socket;

public class MyServer{
    public static void main(String[] args) throws IOException {
        
        int portNumber = 6009;
        
        try {
            ServerSocket ss = new ServerSocket(portNumber);
            System.out.println("Waiting for connection...");
            Socket inboundSocket = ss.accept();

            System.out.println("inputstream read");
            DataInputStream is = new DataInputStream(inboundSocket.getInputStream());

            BufferedReader reader = new BufferedReader(new InputStreamReader(is));
          
            String fromStream = reader.readLine();
            System.out.println(fromStream);

            System.out.println("bufferreader read");
            ss.close();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}

Sub AppStart (Form1 As Form, Args() As String)
    Start
End Sub

Sub Start
    Dim sock As Socket
    sock.Initialize("Socket")
    sock.Connect("192.168.1.71", 6009, 0)
    Wait For Socket_Connected (Successful As Boolean)
    If Successful Then
        Log("Connection successful")
        Dim astream As AsyncStreams
        astream.Initialize(sock.InputStream, sock.OutputStream, "Stream")
        Sleep(5000)
        Log("Send data")
        astream.Write("I come from b4j".GetBytes("UTF8"))
        astream.SendAllAndClose '<------- If i comment this line, text are not sent
    End If
End Sub