Question

I have some code to connect to the internet, it works fine in the simulator
but when I try it on a real device, I always get a 400 http response code
(the response body says “Connection timed out”)

I’m using JRE 5
and using Blackberry 9000 on OS version 5 for both the real device and the simulator.

It is activated according to Advanced Options > Enterprise Activation
Is there something else I need to change on the real device to make it work?

I slowly whittled down my code to get to the root of the issue
and I’m down to this code:

package mypackage;

import javax.microedition.io.Connector;
import javax.microedition.io.HttpConnection;

import net.rim.device.api.io.transport.TransportInfo;
import net.rim.device.api.ui.UiApplication;
import net.rim.device.api.ui.component.Dialog;
import net.rim.device.api.ui.container.MainScreen;

public class MyApp extends UiApplication {
    public static void main(String[] args) {
        MyApp theApp = new MyApp();
        theApp.enterEventDispatcher();
    }

    public MyApp() {
        pushScreen(new SimpleScreen());
    }
}

class SimpleScreen extends MainScreen {
    public SimpleScreen() {
        this.setTitle("Hello");
        ConnectionThread ct = new ConnectionThread();
        ct.start();
    }
}

class ConnectionThread extends Thread {
    private static String url = "http://www.wikipedia.org/";
    public void run() {

        System.out.println(" -- ConnectionThread.run()");
        System.out.println(" ---- MDS hasSufficientCoverage? " + TransportInfo.hasSufficientCoverage(TransportInfo.TRANSPORT_MDS));
        try {
            HttpConnection httpConn;
            httpConn = (HttpConnection) Connector.open(url);

            final int iResponseCode = httpConn.getResponseCode();
            UiApplication.getUiApplication().invokeLater(new Runnable() {
                public void run() {
                    Dialog.alert("Response code: " + Integer.toString(iResponseCode));
                }
            });

        } catch (Exception e) {
            System.err.println("Caught IOException: " + e.getMessage());
        }

        System.out.println(" -- /ConnectionThread.run()");
    }
}

==============================================

// EDIT:
I’m pretty sure its a device config issue now, I just the Network Diagnostic Tool and it also returns a 400 HTTP Response with the message “connect timed out”.

==============================================

//EDIT #2:
I just tried options->mobile network->diagnostics test
Here are the results:

ICMP Ping Echo: No
------
Blackberry Registration: Yes
Connected to Blackberry: Yes
Blackberry PIN-PIN: Yes
------
Server Name: <my enterprise server>
Email Address: <my email>
Connected to <my email>: Yes

Then I tried options->mobile network->tools->ping

and pinged google and wikipedia and both say A network error occurred

Answer 1

I asked the BES Admin and he says its Docomo issue.. and he has taken it up with them.

Basically there’s no code problem (as far as I can tell)