@Override
  public boolean equals(Object o) {
    if (this == o) return true;
    if (o == null || getClass() != o.getClass()) return false;

    ArtifactData data = (ArtifactData)o;

    if (!Objects.equals(artifactId, data.artifactId)) return false;
    if (!Objects.equals(groupId, data.groupId)) return false;
    if (!Objects.equals(version, data.version)) return false;
    if (!Objects.equals(classifier, data.classifier)) return false;
    if (!Objects.equals(extension, data.extension)) return false;
    if (!Objects.equals(properties, data.properties)) return false;

    return true;
  }
@Override
  public boolean equals(Object o)