* {@code ArrayList<?>::set}.
   *
   * <p>Instead, {@code <?>} will be resolved to a capture in the form of a type variable {@code
   * <capture-of-? extends Object>}, effectively preventing {@code set} from accepting any type.
   */
  static TypeResolver invariantly(Type contextType) {
    Type invariantContext = WildcardCapturer.INSTANCE.capture(contextType);

    assertAssignable(
        TypeToken.of(new TypeCapture<L>() {}.capture()),
        TypeToken.of(new TypeCapture<L>() {}.capture()));
    assertNotAssignable(
        TypeToken.of(new TypeCapture<R>() {}.capture()),
        TypeToken.of(new TypeCapture<L>() {}.capture()));
    assertAssignable(TypeToken.of(new TypeCapture<L>() {}.capture()), new TypeToken<List<R>>() {});
  }

  public void testisSupertypeOf_resolved() {

    assertAssignable(
        TypeToken.of(new TypeCapture<L>() {}.capture()),
        TypeToken.of(new TypeCapture<L>() {}.capture()));
    assertNotAssignable(
        TypeToken.of(new TypeCapture<R>() {}.capture()),
        TypeToken.of(new TypeCapture<L>() {}.capture()));
    assertAssignable(TypeToken.of(new TypeCapture<L>() {}.capture()), new TypeToken<List<R>>() {});
  }

  public void testisSupertypeOf_resolved() {

   * {@code ArrayList<?>::set}.
   *
   * <p>Instead, {@code <?>} will be resolved to a capture in the form of a type variable {@code
   * <capture-of-? extends Object>}, effectively preventing {@code set} from accepting any type.
   */
  static TypeResolver invariantly(Type contextType) {
    Type invariantContext = WildcardCapturer.INSTANCE.capture(contextType);

        if (new TypeCapture<Entry<String, int[][]>>() {}.capture()
            .toString()
            .contains("java.util.Map.java.util.Map")) {
          CURRENT = JAVA8;
        } else {
          CURRENT = JAVA9;
        }
      } else if (new TypeCapture<int[]>() {}.capture() instanceof Class) {
        CURRENT = JAVA7;
      } else {
        CURRENT = JAVA6;
      }

        if (new TypeCapture<Entry<String, int[][]>>() {}.capture()
            .toString()
            .contains("java.util.Map.java.util.Map")) {
          CURRENT = JAVA8;
        } else {
          CURRENT = JAVA9;
        }
      } else if (new TypeCapture<int[]>() {}.capture() instanceof Class) {
        CURRENT = JAVA7;
      } else {
        CURRENT = JAVA6;
      }

	listingQuorum := (set.setDriveCount + 1) / 2

	// How to resolve partial results.
	resolver := metadataResolutionParams{
		dirQuorum: listingQuorum, // make sure to capture all quorum ratios
		objQuorum: listingQuorum, // make sure to capture all quorum ratios
		bucket:    bucketName,
	}

	err := listPathRaw(ctx, listPathRawOptions{
		disks:          disks,
		bucket:         bucketName,
		recursive:      true,