LinkedHashSet<String> visited = new LinkedHashSet<>();
        for (Artifact a = request.getArtifact(); ; ) {
            Artifact pomArtifact = ArtifactDescriptorUtils.toPomArtifactUnconditionally(a);
            try {
                VersionRequest versionRequest =
                        new VersionRequest(a, request.getRepositories(), request.getRequestContext());