*
         * @param rootArtifact the root artifact for the dependency graph, may be {@code null}
         * @return this request for chaining, never {@code null}
         */
        @Nonnull
        public DependencyResolverRequestBuilder rootArtifact(@Nullable Artifact rootArtifact) {
            this.rootArtifact = rootArtifact;
            return this;
        }

        /**

        // as well as its dependencies.

        if (request.isResolveRoot() /* && rootArtifact.getFile() == null */) {
            try {
                resolve(rootArtifact, request.getRemoteRepositories(), session);
            } catch (ArtifactResolutionException e) {
                result.addErrorArtifactException(e);
                return result;