@NotNull
  private static String getMavenArtifactKey(MavenId mavenId) {
    StringBuilder builder = new StringBuilder();
    append(builder, mavenId.getGroupId());
    append(builder, mavenId.getArtifactId());
    append(builder, mavenId.getVersion());

    return builder.toString();
  }
@NotNull
  private static String getMavenArtifactKey(MavenId mavenId)