Error using the OSLC Example with Jazz Sandbox

Hi,

I want to access the Jazz.net Sandbox with the sample Javacode from the OSLC workshop. I use the example 03 "Print out the content of the Service Providers catalog".

My settings in the main method are:

                    String login = "xxx";                                                     // Set the user login
                    String password = "xxx";                                             // Set the associated password
                   //============== -------------------------------------- =============//           
                    String rootServices = server + "/rootservices";
                    String catalogXPath = "/rdf:Description/oslc_rm:rmServiceProviders/@rdf:resource";
                    String serviceProviderTitleXPath = "//oslc:ServiceProvider/dcterms:title";

When I debug the sample it's all ok, I get the response body with the rootservice document.

But when I reach the authentication method in the httpUtils class: doRRCOAuth I get an exception.

When it tries to get the locationheader:

                //Second GET
                Header location = documentResponse.getFirstHeader("Location");
                HttpGet request3 = new HttpGet(location.getValue());
 
the method documentResponse.getFirstHeader("Location"); returns a null value.

I have a Jazz Team Server environment in a VM-image and there the example works.

Has anyone an idea to this issue?

regards,
Lars