StringBuilder sb = new StringBuilder(128);
        sb.append(getGroupId());
        sb.append(':');
        appendArtifactTypeClassifierString(sb);
        return sb.toString();
    }

    private void appendArtifactTypeClassifierString(StringBuilder sb) {
        sb.append(getArtifactId());
        sb.append(':');
        sb.append(getType());
        if (hasClassifier()) {