Multiple requests in a single HttpConnection

Question

this is the point,
I would like to make a while that sends multiple requests, but with just one HttpConnection.
something like this:
import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.IOException;
import javax.microedition.io.Connector;
import javax.microedition.io.HttpConnection;
public class Ping extends Thread {
    String url;
    HttpConnection conn = null;
    DataInputStream hdin = null;
    DataOutputStream hdout = null;
    public Ping(String url) {
        this.url = url;
    public void openConnection() {
        try {
            conn = (HttpConnection) Connector.open(url);
            conn.setRequestMethod(HttpConnection.POST);
        }  catch(Exception e) {
            e.printStackTrace();
    public void efetuaConsulta() {
       int counter = 0;
       try {
            if(null == conn)
                openConnection();
            while(counter <= 10) {
                hdout = conn.openDataOutputStream();
                hdout.writeInt(counter);
                hdout.flush();
                hdout.close();
                hdin = conn.openDataInputStream();
                counter = hdin.readInt() + 1;
                hdin.close();
                System.out.println("--> "+counter);
        } catch(Exception e) {
            e.printStackTrace();
    public void run() {
        efetuaConsulta();
}well, this the idea, but its not working....
this class would send an incremented int every request to my servlet,
in another project, my servlet would do something....
but this is not working because it says my DataOutputStream is already opened.
I tried to do a singleton too, but it doesnt work....
someone knows how to do it?
I know it's possible because midp1.0 supports HTTP1.1
and HTTP1.1 support what Im trying to do here....

Answer 1

Http 1.1 is not supported. You could implement that yourself...
try to move the openconnection into the while loop. that should work