Cookie problem with Jigsaw client API

I am trying to use the Jigsaw client API to make a POST/GET request.
I added code to use the cookie filter as follows:


   PropRequestFilter filter = 
          new org.w3c.www.protocol.http.cookies.CookieFilter();
       filter.initialize(ourManager);

where ourManager is the HttpManager instance.

I run the request as follows:

reply = ourManager.runRequest(request);


I seem to get an exception of the following kind. This exception goes away if I do not use the
CookieFilter. 

Thu Feb 10 10:27:45 PST 2000: [Thread Thread-3] No value for attribute [2x3uxylhqksmbbjqyuqe+sjaf4i5/l6fapffdcioxhnbtkwh2ipejp6djtvdpnzd]
    Stack Trace: org.w3c.www.http.HttpInvalidValueException: No value for attribute [2x3uxylhqksmbbjqyuqe+sjaf4i5/l6fapffdcioxhnbtkwh2ipejp6djtvdpnzd]
 at org/w3c/www/http/BasicValue.validate (BasicValue.java:74)
 at org/w3c/www/http/HttpSetCookieList.getSetCookies (HttpSetCookieList.java:229)
 at org/w3c/www/protocol/http/cookies/CookieFilter.outgoingFilter (CookieFilter.java:404)
 at org/w3c/www/protocol/http/HttpManager.runRequest (HttpManager.java:667)

Any hints to what I am doing wrong would be welcome.

Thanks.

M Chandramouli