this.repositorySystem = repositorySystem;
    }

    @Override
    public VersionResolverResult resolve(VersionResolverRequest request) throws VersionResolverException {
        nonNull(request, "request");
        InternalSession session = InternalSession.from(request.getSession());

        try {
            VersionResult res = repositorySystem.resolveVersion(
                    session.getSession(),

            throws VersionResolutionException {
        RequestTrace trace = RequestTrace.newChild(request.getTrace(), request);

        Artifact artifact = request.getArtifact();

        String version = artifact.getVersion();

        VersionResult result = new VersionResult(request);

        Key cacheKey = null;

        this.repositorySystem = repositorySystem;
    }

    @Override
    public VersionResolverResult resolve(VersionResolverRequest request) throws VersionResolverException {
        nonNull(request, "request");
        InternalSession session = InternalSession.from(request.getSession());

        try {
            VersionResult res = repositorySystem.resolveVersion(
                    session.getSession(),