return userProperties.get(key);
    }

    @Override
    public Model getRawModel(Path from, Path p) {
        return Holder.deref(modelByPath.get(p));
    }

    @Override
    public Model getRawModel(Path from, String groupId, String artifactId) {
        return Holder.deref(modelByGA.get(new GAKey(groupId, artifactId)));
    }

    @Override
    public Path locate(Path path) {