FirstMidletServlet with http connection error

Question

Ok so im quite new to midlets. Im trying to run the FirstMidletServlet which connects to a servlet using a tomcat server.
It builds fine and runs ok until i am prompted to us airtime in the emulator. Once i click ok it just comes up with "Error" absolutetly nothing else not in the console in the wireless toolkit or in tomcat server console window.
The servlet executes fine in the browser window so i know its not that.
Any ideas why? Heres the code below
Im running it on tomcat 5.5 and jdk1.5.0_14
import java.io.*;
import javax.microedition.io.*;
import javax.microedition.lcdui.*;
import javax.microedition.midlet.*;
* An example MIDlet to invoke a CGI script.
public class FirstMidletServlet extends MIDlet {
    private Display display;
    String url = "http://localhost/Servlet/HelloServlet";
    public FirstMidletServlet() {
       display = Display.getDisplay(this);
     * Initialization. Invoked when we activate the MIDlet.
    public void startApp() {
     try {
            invokeServlet(url);
     } catch (IOException e) {
         System.out.println("IOException " + e);
         e.printStackTrace();
     * Pause, discontinue ....
    public void pauseApp() {
     * Destroy must cleanup everything.
    public void destroyApp(boolean unconditional) {
     * Prepare connection and streams then invoke servlet.
     void invokeServlet(String url) throws IOException {
        HttpConnection c = null;
        InputStream is = null;
        StringBuffer b = new StringBuffer();
        TextBox t = null;
        try {
          c = (HttpConnection)Connector.open(url);
          c.setRequestMethod(HttpConnection.GET);
          c.setRequestProperty("IF-Modified-Since", "20 Jan 2001 16:19:14 GMT");
          c.setRequestProperty("User-Agent","Profile/MIDP-1.0 Configuration/CLDC-1.0");
          c.setRequestProperty("Content-Language", "en-CA");
          is = c.openDataInputStream();
          int ch;
          while ((ch = is.read()) != -1) {
            b.append((char) ch);
            //System.out.println((char)ch);
          t = new TextBox("First Servlet", b.toString(), 1024, 0);
        } finally {
           if(is!= null) {
              is.close();
           if(c != null) {
              c.close();
        display.setCurrent(t);
    }    

Answer 1

what do you mean, "prompted to us airtime in the emulator"? I don't see anything related to that sentence in the code you posted. Is there more code you aren't showing us? Where does it say "Error" at?
It promts you in the wireless toolkit that you are about to connect to an external connection. so you click yes then it trys to connect to servlet and get the "error" thats all it says on the wireless toolkit display!