return markingStrategy;
    }

    @Override
    public Provider<CleanupFrequency> getCleanupFrequency() {
        return getCleanup().map(cleanup ->
            new MustBeConfiguredCleanupFrequency(((CleanupInternal) cleanup).getCleanupFrequency())
        );
    }

    @Override
    public void synchronize(CacheConfigurationsInternal persistentCacheConfigurations) {