Apache stanbol Jackrabbit Integration using cmsadapter authorization error

Apache stanbol Jackrabbit Integration using cmsadapter authorization error

I am trying to integrate Stanbol with jackrabbit using the stanbol
cmsadapter. I mostly followed steps suggested in this link.
While trying to access the session key using curl:
curl -X GET -H "Accept: text/plain" "http://:8080/cmsadapter/session?
repositoryURL=http://:10000/rmi&username=admin&password=admin&connectionType=JCR"
I get the following error:
unauthorized
Stanbol runs at localhost:8080 and jackrabbit at localhost:10000
What could be the reason? Also, has anyone successfully integrated them?
Thanks!