FULL PRODUCT VERSION :
java version "1.6.0_01"
Java(TM) SE Runtime Environment (build 1.6.0_01-b06)
Java HotSpot(TM) Server VM (build 1.6.0_01-b06, mixed mode)


ADDITIONAL OS VERSION INFORMATION :
Linux mordi.ams-sys.com 2.6.20-1.2944.fc6 #1 SMP Tue Apr 10 18:46:45 EDT 2007 i686 i686 i386 GNU/Linux

A DESCRIPTION OF THE PROBLEM :
URL https://mordi/eu/ - host name without domain part

System.out.println(httpConnection);
Certificate[] certificates = ((HttpsURLConnection)httpConnection).
                                                       getServerCertificates();


STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
Call by https some local server without host domain part in URL

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
-- Server Certificate --------------------------------------------------------
Signature Algorithm: MD5withRSA
Issued to: EMAILADDRESS=###@###.###, CN=mordi.ams-sys.com,
           OU=S/W Development, O=AMS Advanced Maintenance Systems Ltd.,
           L=Jerusalem, ST=N/A, C=IL
Issued by: EMAILADDRESS=###@###.###, CN=www.ams-sys.com,
           OU=Certification Services Division,
           O=AMS Advanced Maintenance Systems Ltd., L=Jerusalem, ST=N/A, C=IL
Valid from 28-May-2006 to 27-May-2008

ACTUAL -
Java 6 result:

javax.net.ssl.SSLHandshakeException:
java.security.cert.CertificateException: No name matching mordi found
------------------------------------------
Exception in thread "main" java.lang.NullPointerException
        at
sun.net.www.protocol.https.HttpsClient.getServerCertificates(HttpsClient.jav
a:526)
        at
sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getServerCerti
ficates(AbstractDelegateHttpsURLConnection.java:242)
        at
sun.net.www.protocol.https.HttpsURLConnectionImpl.getServerCertificates(Http
sURLConnectionImpl.java:177)
        at Bug.<init>(Bug.java:27)
        at Bug.main(Bug.java:9)


Java 5 result:

java.io.IOException: HTTPS hostname wrong: should be <mordi>


ERROR MESSAGES/STACK TRACES THAT OCCUR :
See actual result

REPRODUCIBILITY :
This bug can be reproduced always.

---------- BEGIN SOURCE ----------
/*
 * Bug.java
 *
 * Created on May 29, 2007, 1:50 PM
 *
 * To change this template, choose Tools | Template Manager
 * and open the template in the editor.
 */

package webbugtestcases.classes_net.inc965406;

import java.net.*;
import java.io.*;
import javax.net.ssl.*;
import java.security.cert.*;

class Bug {

    public static void main(String[] args) throws Exception {
        new Bug();
    }

    Bug() throws Exception {

        // IMPORTANT.
        // mordi is server on LAN
        // Certificate is issued for full name "mordi.ams-sys.com" but
        // server name in URL is "mordi" without domain part.
        // With domain part getInputStream works. In our code we use catch
        // block to get server certificate and to extract
        // right server name from it.

        URL url = new URL("https://mordi/eu/");

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

        try {
            connection.getInputStream();
        } catch (Exception e) {
            System.out.println(e);
            
            System.out.println("------------------------------------------");
            Certificate[] certificates = connection.getServerCertificates();
        }
    }
}
---------- END SOURCE ----------