SAML Identity switching policy - Limitations - 11g
By Prakash Yamuna-Oracle on Sep 16, 2011
This post from Edwin Beimond talks about the various SAML features in OWSM. However there is one quick thing I wanted to note: The inclusion of user attributes and roles is NOT supported when you are using the SAML Identity switching policy in the current release (18.104.22.168.0).
The documentation is not necessarily very clear on this front.
Note: This may change in a future release - however for now the above limitation exists.