/**
     * Provides a map of user properties.
     * User properties
     */
    @Nonnull
    Map<String, String> getUserProperties();

    @Nonnull
    RepositoryMerging getRepositoryMerging();

    @Nullable
    ModelTransformer getLifecycleBindingsInjector();

    @Nonnull
    static ModelBuilderRequest build(@Nonnull ModelBuilderRequest request, @Nonnull ModelSource source) {

        setValidationLevel(request.getValidationLevel());
        setResolveVersionRanges(request.isResolveVersionRanges());
        setRepositoryMerging(request.getRepositoryMerging());
    }

    @Override
    public MavenProject getProject() {
        return project;
    }

    @Override
    public void setProject(MavenProject mavenProject) {

        List<ArtifactRepository> dominantRepositories;
        List<ArtifactRepository> recessiveRepositories;

        if (ProjectBuildingRequest.RepositoryMerging.REQUEST_DOMINANT.equals(request.getRepositoryMerging())) {
            dominantRepositories = externalRepositories;
            recessiveRepositories = internalRepositories;
        } else {
            dominantRepositories = internalRepositories;