for (; i < args.length; i++) {
        builder.append(prefix);
        builder.append(lenientToString(args[i]));
        prefix = ", ";
      }
      builder.append(']');
    }

    return builder.toString();
  }

  @SuppressWarnings("CatchingUnchecked") // sneaky checked exception
  private static String lenientToString(@Nullable Object o) {
    if (o == null) {
      return "null";
    }
    try {