Look here, lines 197-200 and you'll find your answer:
https://github.com/keycloak/keycloak/blob/master/services/src/main/java/o...
Most of the arguments for the constructor of the authenticateBearerToken
method are injected each time the IdentityBrokerService is instantiated,
line 225 here:
https://github.com/keycloak/keycloak/blob/master/services/src/main/java/o...
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*Tomás García Pérez*
*Software Developer*
*Intrahouse*