private List<ContainerEndpoint> readEndpointsIfNull(List<ContainerEndpoint> endpoints) {
            if (endpoints == null) { // endpoints are only set when prepared via HTTP
                endpoints = this.containerEndpointsCache.read(applicationId);
            }
            return List.copyOf(endpoints);
        }
Warn on use of deprecated XML features
configserver/src/main/java/com/yahoo/vespa/config/server/session/SessionPreparer.java