We have LDAP and SSO ( CAS ). While having correctly defined a defaultAdministratorId in org.nuxeo.ecm.platform.usermanager.VirtualGroups

<defaultAdministratorId>uid_of_our_admin</defaultAdministratorId>

We keep getting these errors ( we didn't have it with Nuxeo 5.4.1 )

2012-10-26 14:40:00,002 ERROR [org.nuxeo.ecm.platform.login.NuxeoLoginModule] createIdentity failed
javax.security.auth.login.LoginException: principal Administrator does not exist

2012-10-26 14:40:00,003 ERROR [org.nuxeo.ecm.core.scheduler.EventJob] Error while processing scheduled event id: workManagerCleanup
javax.security.auth.login.LoginException: createIdentity failed for user Administrator