@Override
        public Model createModel(ModelContext modelContext) {
            if (throwErrorOnLoad)
                throw new Error("error on load");
            if (throwOnLoad)
                throw new IllegalArgumentException("exception on load");
            this.modelContext = modelContext;
            return loadModel();
        }
Returns the clock used by this, which is fixed at the instant 2000-01-01T00:00:00
configserver/src/test/java/com/yahoo/vespa/config/server/session/SessionRepositoryTest.java