SubjectCanonicalizationContext Initialization

[Marvin Addison]

I'm trying to set up a demo webapp to integrate the CAS profile flow
into the authentication flow and I'm getting tripped up when handing
off to the subject canonicalization flow. As I understand it, it's the
responsibility of the parent flow to set up contexts needed by a
delegate subsystem, but I simply don't see where that's happening in
the sample authn flows in java-idp-testbed. I believe I need to create
a custom action to create a new SubjectCanonicalizationContext and
make it a child of AuthenticationContext, but I wanted to confirm my
understanding before proceeding.

Thanks,
M