@Override
    public RegisteredService findServiceBy(final Service service) {
        val manager = findServicesManager(service);
        return manager.map(servicesManager -> servicesManager.findServiceBy(service)).orElse(null);
    }
This is {@link DefaultChainingServicesManager}.

@author Misagh Moayyed
@since 6.2.0
core/cas-server-core-services-registry/src/main/java/org/apereo/cas/services/mgmt/DefaultChainingServicesManager.java