# @ClientRegistrationId("stub") on the interface + OAuth2RestClientHttpServiceGroupConfigurer
call 1: whoAmI() -> {caller=demo-user, tokenKind=oauth2}
call 2: whoAmI() -> {caller=demo-user, tokenKind=oauth2}
call 3: whoAmI() -> {caller=demo-user, tokenKind=oauth2}

# what the stub saw, in order
POST /oauth/token
GET /secure/bearer
GET /secure/bearer
GET /secure/bearer
token requests: 1

# the same interface WITHOUT the group configurer: the annotation is silently ignored
whoAmI() -> 401 UNAUTHORIZED