Possible "class com.nimbusds.openid.connect.sdk.claims.IDTokenClaimsSet cannot be cast to class com.nimbusds.openid.connect.sdk.claims.IDTokenClaimsSet" after an upgrade

The authenticator store id token claims in the session as IDTokenClaimsSet, but this cans cause problems when upgrading and extension on root namespace which cause classes like IDTokenClaimsSet to be reloaded and make impossible to load the value from the session.

It should only store "core" types in the session to avoid this kind of problems.

A possible workaround is to restart.