@Override
    @CanIgnoreReturnValue
    public ServiceRegistryExecutionPlan registerServiceRegistry(final ServiceRegistry registry) {
        if (BeanSupplier.isNotProxy(registry)) {
            LOGGER.trace("Registering service registry [{}] into the execution plan", registry.getName());
            serviceRegistries.add(registry);
        }
        return this;
    }
This is {@link DefaultServiceRegistryExecutionPlan}.

@author Misagh Moayyed
@since 5.3.0
core/cas-server-core-services-registry/src/main/java/org/apereo/cas/services/DefaultServiceRegistryExecutionPlan.java