What's problem with javax.net.ssl.HttpsUrlConnection

what is problem with following code

import java.io.*;

import java.net.*;

import javax.net.ssl.*;

public class HttpsURL{

public static void main(String[] argv) throws Exception {

URL url = new URL(argv[0]);

HttpsURLConnection connection = (HttpsURLConnection) url.openConnection();

connection.setDoOutput(true);

BufferedReader in = new BufferedReader(

new InputStreamReader(connection.getInputStream()));

String line;

while ((line = in.readLine()) != null) {

System.out.println(line);

}

in.close();

}

}

it returned

Exception in thread "main" javax.net.ssl.SSLHandshakeException: Couldn't find trusted certificate

Please help me, I will be sacked by tomorrow if it's not solved.

[807 byte] By [Akshaya] at [2007-10-2 9:06:36]