I have upgraded OIM from 11.1.2.0 to 11.1.2.2.0. After that upgrade was complete, I have verified that can log into /identity and /sysadmin consoles, and that I was able to use SSO to access protected resources. I then upgraded OAM from 11.1.2.0 to 11.1.2.2. After that upgrade I can log into oamconsole directly hostname:7001/oamconsole, but when I try to use OHS SSO (hostname:7777/oamconsole) I am getting error message "System error. Please re-try your action. If you continue to get this error, please contact the Administrator." Hence I am not able to input my credentials at all. I am able to access OHS page by itself (hostname:/7777).