We also tried the example illustration from this link -> http://www.oracle.com/technetwork/articles/idm/sso-with-saml-099684.html
This worked well for Browser/POST profile. But the requirement was to try Browser/Artifact profile based.
Our configurations is working without SSL, but if we enable SSL based details like signing, alias, etc. then we are also getting the same error posted above.
Do anyone had insight what might be the reason for this error?