Certificate does not contain the correct site name

Question

Hello,
I have to make a midlet that connect to a tomcat 5.5.9 server with ssl.
I import the certificate whit tomcat alias in the wireless toolkit but when i run the midlet this error appear: Certificate does not contain the correct site name
import java.io.*;
import javax.microedition.midlet.*;
import javax.microedition.io.*;
import javax.microedition.lcdui.*;
public class HelloNet extends MIDlet implements CommandListener , Runnable{
// User interface command to exit the current
// application.
private Command exitCommand = new Command("Exit",
Command.EXIT, 2);
// User interface command to issue an HTTP GET
// request.
private Command getCommand = new Command("Get",
Command.SCREEN, 1);
/// The current display object.
private Display display;
// The url to GET from the 'net.
private String url;
* Initialize the MIDlet with a handle to the
* current display.
public HelloNet() {
url = "https://127.0.0.1:8443/Hello.txt";
     display = Display.getDisplay(this);
* This lifecycle method should return immediately
* to keep the dispatcher
* from hanging.
public void startApp() {
     showPrompt();
* Display the main screen.
void showPrompt() {
String s = "Press Get to fetch " + url;
TextBox t = new TextBox("Http Result", s,
s.length(), 0);
t.addCommand(exitCommand);
t.addCommand(getCommand);
t.setCommandListener(this);
     display.setCurrent(t);
* pauseApp signals the thread to stop by clearing
* the thread field.
* If stopped incorrectly, it will be restarted from
* scratch later.
public void pauseApp() {
* destroyApp must cleanup everything. The thread
* is signaled
* to stop and no result is produced.
* @param unconditional is a flag to indicate that
* forced shutdown
* is requested
public void destroyApp(boolean unconditional) {
* commandAction responds to commands
* @param c command to perform
* @param s Screen displayable object
public void commandAction(Command c, Displayable s) {
     if (c == exitCommand) {
     destroyApp(false);
     notifyDestroyed();
     } else if (c == getCommand) {
          Thread th= new Thread (this);
          th.start();
* Read the content of the page.
public void run() {
TextBox t = null;
StringBuffer b = new StringBuffer();
HttpsConnection c = null;
InputStream is = null;
     try {
     int len = 0;
     int ch = 0;
     System.out.println("Cerco di leggere");
c = (HttpsConnection)Connector.open(url);
c.setRequestMethod(HttpsConnection.GET);
     is = c.openInputStream();
// length of content to be read.
len = (int) c.getLength();
if (len != -1) {
// Read exactly Content-Length bytes
for(int i=0; i<len; i++) {
if((ch = is.read()) != -1) {
b.append((char) ch);
} else {
// Read until connection is closed.
while((ch = is.read()) != -1) {
len = is.available();
b.append((char) ch);
t = new TextBox("Https Result", b.toString(),
b.length(), 0);
     } catch (Exception e) {
e.printStackTrace();
String s = e.toString();
if(s != null) {
t = new TextBox("Https Error", s, s.length(),
0);
} finally {
if (is != null) {
     try {
          is.close();
     } catch (Exception ce) { }
if (c != null) {
     try {
          c.close();
     } catch (Exception ce) { }
display.setCurrent(t);
}

Answer 1

re: code tags, please see http://forum.java.sun.com/help.jspa?sec=formatting.
As for the rest:
See, we now know that you used keytool to generate you certificate. You need a new certificate. This time, when keytool asks you for a first and last name, type 127.0.0.1.