// -------------------------------------------------------------------------------------------
    public ClasspathContainer(ArtifactScopeEnum scope) {
        this.scope = ArtifactScopeEnum.checkScope(scope);
    }

    // -------------------------------------------------------------------------------------------
    public ClasspathContainer(List<ArtifactMetadata> classpath, ArtifactScopeEnum scope) {

            // edge case - single vertex graph
            if (vertices.size() == 1) {
                return new MetadataGraph(entry);
            }

            final ArtifactScopeEnum requestedScope = ArtifactScopeEnum.checkScope(scope);

            MetadataGraph res = new MetadataGraph(vertices.size());
            res.setVersionedVertices(false);
            res.setScopedVertices(false);