}

    @Override
    public Set<Configuration> getHierarchy() {
        if (extendsFrom.isEmpty()) {
            return Collections.singleton(this);
        }
        Set<Configuration> result = WrapUtil.toLinkedSet(this);
        collectSuperConfigs(this, result);
        return result;
    }

    private void collectSuperConfigs(Configuration configuration, Set<Configuration> result) {