.collect(Collectors.toList());
            try {
                List<Future<InterimResult>> futures = executor.invokeAll(tasks);
                List<InterimResult> list = new ArrayList<>();
                for (Future<InterimResult> future : futures) {
                    InterimResult interimResult = future.get();
                    list.add(interimResult);
                }
                return list;

   * asList}{@code (...))}, or for creating an empty set then calling {@link Collections#addAll}.
   * This method is not actually very useful and will likely be deprecated in the future.
   */
  @SuppressWarnings("nullness") // TODO: b/316358623 - Remove after checker fix.
  public static <E extends @Nullable Object> HashSet<E> newHashSet(E... elements) {

		HTTPStatusCode: http.StatusBadRequest,
	},
	ErrPastObjectLockRetainDate: {
		Code:           "InvalidRequest",
		Description:    "the retain until date must be in the future",
		HTTPStatusCode: http.StatusBadRequest,
	},
	ErrUnknownWORMModeDirective: {
		Code:           "InvalidRequest",
		Description:    "unknown wormMode directive",
		HTTPStatusCode: http.StatusBadRequest,

			// by the client, but we still see an error - this would mean
			// that we have some parts or data blocks missing or corrupted
			// - attempt a heal to successfully heal them for future calls.
			if written == partLength {
				var scan madmin.HealScanMode
				switch {
				case errors.Is(err, errFileNotFound):
					scan = madmin.HealNormalScan
				case errors.Is(err, errFileCorrupt):

                  ImmutableList.<K>asImmutableList(sortedKeys), comparator),
              ImmutableList.<V>asImmutableList(sortedValues));
      }
    }

    /**
     * Throws UnsupportedOperationException. A future version may support this operation. Then the
     * value for any given key will be the one that was last supplied in a {@code put} operation for
     * that key.
     *
     * @throws UnsupportedOperationException always

		err = store.loadMappedPolicy(ctx, accessKey, userType, false, cache.iamUserPolicyMap)
	default:
		// This is just to ensure that we have covered all cases for new
		// code in future.
		panic("unknown user type")
	}
	// Ignore policy not mapped error
	if err != nil && !errors.Is(err, errNoSuchPolicy) {
		return err
	}

	return nil
}

	if err != nil {
		writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
		return
	}

	// Add ldap users which have mapped policies if in LDAP mode
	// FIXME(vadmeste): move this to policy info in the future
	ldapUsers, err := globalIAMSys.ListLDAPUsers(ctx)
	if err != nil && err != errIAMActionNotAllowed {
		writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
		return
	}
	for k, v := range ldapUsers {

		// namespace.
		for _, k := range []string{
			"_SUCCESS/",
			".parquet/",
			".csv/",
			".json/",
			".avro/",
			".orc/",
			".txt/",
			// Add any other files in future
		} {
			if strings.HasSuffix(prefix, k) {
				return true
			}
		}
		return false
	}
	if hadoop && matches() && delimiter == SlashSeparator && maxKeys == 2 && marker == "" {

			}
		}
	} // Success.
	return nil
}

func getValidPath(path string) (string, error) {
	if path == "" {
		return path, errInvalidArgument
	}

	var err error
	// Disallow relative paths, figure out absolute paths.
	path, err = filepath.Abs(path)
	if err != nil {
		return path, err
	}

	fi, err := Lstat(path)
	if err != nil && !osIsNotExist(err) {
		return path, err
	}

    assertEquals("b", consumingIterator.next());
    assertThat(list).isEmpty();

    assertFalse(consumingIterator.hasNext());
  }

  @GwtIncompatible // ?
  // TODO: Figure out why this is failing in GWT.
  public void testConsumingIterator_duelingIterators() {
    // Test data
    List<String> list = Lists.newArrayList("a", "b");

    // Test & Verify