Junit - Adding cookies to UrlResource ( or alternative )

Question

Hi

We are using JUnit+Selenium for functional testing of a web site in our project.

In several tests we need to download files from the website and compare it with a local resource.
We are using UrlResource to do this.

UrlResource actualResource = new UrlResource(URL);
compareUtil.isResourcesEquals(expectedResource, actualResouce);

This should work except that URL is protected by login.

So we use selenium to fetch the jsession id

String session = selenium.getCookieByName("JSESSIONID")

Works like a charm!

But now comes the problem. I need to add the session to the UrlResource. I tried just appending it tot he end of the URL

"http://companywebsite/user/files/6546464654/;jsessionid=" + session

But our website does not accept that. So I assue I need to append the session ID as a cookie to the UrlResource object. But I can't figure out how to do this.

Can you help us with this?
Or are we going about this the incorrect way. Should we use something else instead?