http over ssl gives an empty map of headerFields (with examplecode)

[Panagiotis Astithas]

Panagiotis Astithas wrote:
> Ronald Klop wrote:
> 
>> On Wed, 12 Oct 2005 21:40:48 +0200, Ronald Klop  
>> <ronald-freebsd8 at klop.yi.org> wrote:
>>
>>> Hello,
>>>
>>> I'm trying to run an application which makes a connection over ssl. 
>>> It  retreives some fields using the method  
>>> HttpUrlConnection.getHeaderFields(). But this returns an empty Map. 
>>> If I  run the same program on a Linux machine with Sun JDK 1.5 it 
>>> runs very  well and get some headerfields (which are important for 
>>> the application).
>>>
>>> My system is.
>>> $ uname -a
>>> FreeBSD guido.klop.ws 6.0-RC1 FreeBSD 6.0-RC1 #0: Tue Oct 11 
>>> 00:29:56  CEST 2005     
>>> root at guido.klop.ws:/usr/obj/usr/src/sys/GUIDO  i386
>>>
>>> $ java -version
>>> java version "1.5.0-p2"
>>> Java(TM) 2 Runtime Environment, Standard Edition (build  
>>> 1.5.0-p2-root_06_oct_2005_21_46)
>>> Java HotSpot(TM) Client VM (build 1.5.0-p2-root_06_oct_2005_21_46, 
>>> mixed  mode)
>>>
>>> If I can find the time I will try to create a better testcase, but 
>>> maybe  it is a known problem and somebody knows how to fix this.
>>
>>
>>
>> import java.io.IOException;
>> import java.net.HttpURLConnection;
>> import java.net.URL;
>>
>> public final class HttpsTest {
>>
>>     /**
>>      * @param args
>>      * @throws IOException
>>      */
>>     public static void main(String[] args) throws IOException {
>>         HttpURLConnection httpsConn = null;
>>         URL url = new URL("https://www.google.com/");
>>
>>         httpsConn = (HttpURLConnection) url.openConnection();
>>         System.out.println(httpsConn.getHeaderFields());
>>     }
>>
>> }
>>
>> This class gives this output on FreeBSD 6.0-RC1 and 5.4-STABLE with 
>> java  1.5:
>> $ java HttpsTest
>> {}
>>
>> on 6.0-RC1 with java 1.4:
>> $ java HttpsTest
>> {Content-Length=[151], null=[HTTP/1.1 302 Found], Date=[Wed, 12 Oct 
>> 2005  19:52:46 GMT], Content-Type=[text/html], Server=[GFE/1.3],  
>> Location=[http://www.google.com]}
>>
>> on Linux 2.6 with java 1.5:
>> $ java HttpsTest
>> {Content-Length=[151], Date=[Wed, 12 Oct 2005 19:50:24 GMT],  
>> Content-Type=[text/html], Server=[GFE/1.3],  
>> Location=[http://www.google.com], null=[HTTP/1.1 302 Found]}
>>
>> Do other people have this?
> 
> 
> Nope, it works fine here (6.0-BETA5) with both 1.4/1.5.

And then it struck me: I have installed the cacerts file from the Linux 
1.5 JDK in my copy of the native JDK. Try doing the same and it should 
work for you, too.

Panagiotis