Hi,
i wrote the following class in java for getting contacts. I am using BBauth.
public class GetAllContactsTest extends AbstractTestCase{
final Logger LOGGER = LoggerFactory.getLogger(GetAllContactsTest.class);
String appid ="Wwuo87zIkY2QgCjTbxJIEmmv_SF3pGlJfcw-";
String wssid = "aQ4NwuFa.dN";
//String cookie =
"Y=3hxmZLR_7aO93vNxNcAPYfNPt6W9c5Vk97zSvV2e8H1Rn_uS0IpexYhZKdlA1unz3IU22qJydp9rt\
.Z4iNAvZdUGCFvZuvs3AKI1nydgMwwcb_9g2qeqUkwWZbH_B.aVzpvMDy9sTzZB5kb3CDQV2UILgR9yw\
.OlKxON56EI.p36daf1Yr4UcPlaeMPNjSR3aRKxPTP6P6kp4s4RtgaqxsTApW5lDRpSSGy_Ag4C0nLRd\
dwV2NRmPuaBZPPxLK7FbjJZ0X0bwx7ZsCWJa2ccL2EWYlq6LGgMW.CDVEU0GLjvO7U4iZIUa45.hlEhk\
RQhlVfzgMiabIegN21NBIfpeX6p.B7ReMaY9SRTRpVIaAtrFdSkWQQvNHCpBJ7idHbzKM1Gh_rP.VJX3\
xbW7SKpX7FX01CLjZaxZq65FMlVwyb.8SUrYDCrpzFmMRGyCf8fuBtL1P_e2fgJ8fYBc_P0SAxSutj4E\
w4YuqSfjId8cDV94M1R1Jf4z7MoCAeJFSAF84IgqnNoI5QhK3ZipS5XujSRkIEN9hPutGnG8Y4r7iWpo\
cglduvMDg_aGyHjQD3XiuDftg--";
String cookie =
"Y=3hxmZLR_7aO93vNxNcAPYfNPt6W9c5Vk97zSvV2e8H1Rn_uS0IpexYhZKdlA1unz3IU22qJydp9rt\
.Z4iNAvZdUGCFvZuvs3AKI1nydgMwwcb_9g2qeqUkwWZbH_B.aVzpvMDy9sTzZB5kb3CDQV2UILgR9yw\
.OlKxON56EI.p36daf1Yr4UcPlaeMPNjSR3aRKxPTP6P6kp4s4RtgaqxsTApW5lDRpSSGy_Ag4C0nLRd\
dwV2NRmPuaBZPPxLK7FbjJZ0X0bwx7ZsCWJa2ccL2EWYlq6LGgMW.CDVEU0GLjvO7U4iZIUa45.hlEhk\
RQhlVfzgMiabIegN21NBIfpeX6p.B7ReMaY9SRTRpVIaAtrFdSkWQQvNHCpBJ7idHbzKM1Gh_rP.VJX3\
xbW7SKpX7FX01CLjZaxZq65FMlVwyb.8SUrYDCrpzFmMRGyCf8fuBtL1P_e2fgJ8fYBc_P0SAxSutj4E\
w4YuqSfjId8cDV94M1R1Jf4z7MoCAeJFSAF84IgqnNoI5QhK3ZipS5XujSRkIEN9hPutGnG8Y4r7iWpo\
cglduvMDg_aGyHjQD3XiuDftg--";
String userHash = "uuB9.tNxY.ucl_6ayCGDTZY-";

public GetAllContactsTest(String name) {
super(name);
}

public void setUp() throws Exception{
super.setUp();
}

public void testAllContact() throws Exception{
HttpMethod method=null;
try{

String uri
="http://social.yahooapis.com/v1/user/"+userHash+"/contacts?count=max&appid="+ap\
pid+"&WSSID="+wssid;
HttpClient client = new HttpClient();
method = new GetMethod(uri);
Header hCookie = new Header("Cookie:", cookie);
Header accept = new Header("Accept","*");
Header contentType = new Header("Content-Type", "application/xml;
charset=utf-8");
Header pragma = new Header("Pragma", "No-Cache");
method.addRequestHeader(hCookie);
method.addRequestHeader(accept);
method.addRequestHeader(contentType);
//method.addRequestHeader(pragma);
method.getParams().setParameter(HttpMethodParams.RETRY_HANDLER,
new DefaultHttpMethodRetryHandler(3, false));
int statusCode = client.executeMethod(method);

if (statusCode != HttpStatus.SC_OK) {
//fail("Can not get the Contacts Stream: "+method.getStatusLine());
}
//byte[] responseBody = method.getResponseBody();
InputStream responseStream = method.getResponseBodyAsStream();
BufferedReader bufReader = new BufferedReader( new
InputStreamReader(responseStream));
String stResponseBody = "",oneLine=null;
while((oneLine=bufReader.readLine())!=null)
stResponseBody = stResponseBody + oneLine +"\n";
LOGGER.debug("==================The response body is=====");
LOGGER.debug(stResponseBody);
LOGGER.debug("==================End of response body=====");


}catch(Exception e){
LOGGER.debug("An exception has occured: "+e.toString());
fail("An exception has occured: "+e.toString());
}finally{
method.releaseConnection();
}
}

}

The response i get is the following:

15:08:52,772 WARN [HttpMethodDirector] Unable to respond to any of these
challenges: {oauth=OAuth oauth_problem="unable_to_determine_oauth_type",
realm="yahooapis.com"}
15:08:52,772 DEBUG [GetAllContactsTest] ==================The response body
is=====
15:08:52,772 DEBUG [GetAllContactsTest] <?xml version='1.0' encoding='UTF-8'?>
<yahoo:error xmlns:yahoo='http://yahooapis.com/v1/base.rng'
xml:lang='en-US'>
<yahoo:description>Please provide valid credentials. OAuth
oauth_problem="unable_to_determine_oauth_type",
realm="yahooapis.com"</yahoo:description>
</yahoo:error>
<!-- ws107.socdir.ch1.yahoo.com uncompressed/chunked Tue Oct 6 06:06:32 PDT
2009 -->

15:08:52,772 DEBUG [GetAllContactsTest] ==================End of response
body=====

Could someone please let me know what might be wrong?

Many thanks in advance
Faisal