Keycloak with Spring Boot 3 and multiple Realms I need to authenticate/authorize a Spring Boot application with Keycloak using multiple Realms. So if the request is https://server/realm1/api.json then the realm [realm1] on Keycloak will be used, if the request is https://server/realmXYZ/api.json then the realm [realmXYZ] will be used. Have done With the following configuration (I'm using a old Keycloak 15.02) # Resource Server spring.security.oauth2.resourceserver.jwt.issuer-uri=http://localhost:8180/auth/realms/realm1 # Client...