supplier.get(), "use Optional.orNull() instead of a Supplier that returns null");
  }

  @Override
  public @Nullable T orNull() {
    return null;
  }

  @Override
  public Set<T> asSet() {
    return Collections.emptySet();
  }

  @Override
  public <V> Optional<V> transform(Function<? super T, V> function) {
    checkNotNull(function);
    return Optional.absent();
  }

  @Override

	if userDefined[xhttp.AmzStorageClass] == storageclass.STANDARD {
		delete(userDefined, xhttp.AmzStorageClass)
	}

	if opts.WantChecksum != nil && opts.WantChecksum.Type.IsSet() {
		userDefined[hash.MinIOMultipartChecksum] = opts.WantChecksum.Type.String()
		userDefined[hash.MinIOMultipartChecksumType] = opts.WantChecksum.Type.ObjType()
	}

	modTime := opts.MTime
	if opts.MTime.IsZero() {

      frameHeader(
        streamId = 0,
        length = settings.size() * 6,
        type = TYPE_SETTINGS,
        flags = FLAG_NONE,
      )
      for (i in 0 until Settings.COUNT) {
        if (!settings.isSet(i)) continue
        sink.writeShort(i)
        sink.writeInt(settings[i])
      }
      sink.flush()
    }
  }

  /**

	}
	return map[string]string{r.contentHash.Type.String(): r.contentHash.Encoded}
}

// Checksum returns the content checksum if set.
func (r *Reader) Checksum() *Checksum {
	if !r.contentHash.Type.IsSet() || !r.contentHash.Valid() {
		return nil
	}
	return &r.contentHash
}

var _ io.Closer = (*Reader)(nil) // compiler check

// Close and release resources.

	e := json.NewEncoder(&buf)
	d := jstream.NewDecoder(r, 0).ObjectAsKVS().MaxDepth(10)
	sset := set.NewStringSet()
	for mv := range d.Stream() {
		if mv.ValueType == jstream.Object {
			// This is a JSON object type (that preserves key order)
			kvs, ok := mv.Value.(jstream.KVS)
			if ok {
				for _, kv := range kvs {
					if sset.Contains(kv.Key) {
						// Reject duplicate conditions or expiration.

#007bff;\n  color: #007bff;\n  box-shadow: 120px 0 #fff, 240px 0 #fff;\n}\n\n.pace-loading-bar-primary .pace .pace-activity {\n  box-shadow: inset 0 0 0 2px #007bff, inset 0 0 0 7px #fff;\n}\n\n.pace-mac-osx-primary .pace .pace-progress {\n  background-color: #007bff;\n  box-shadow: inset -1px 0 #007bff, inset 0 -1px #007bff, inset 0 2px rgba(255, 255, 255, 0.5), inset 0 6px rgba(255, 255, 255, 0.3);\n}\n\n.pace-mac-osx-primary .pace .pace-activity {\n  background-image: radial-gradient(rgba(255, 255,...

   * #incidentNodes(Object)}). If this network does not {@link #allowsParallelEdges() allow parallel
   * edges}, the resulting set will contain at most one edge (equivalent to {@code
   * edgeConnecting(nodeU, nodeV).asSet()}).
   *
   * <p>If either {@code nodeU} or {@code nodeV} are removed from the network after this method is
   * called, the {@code Set} {@code view} returned by this method will be invalidated, and will

   *
   * <p><b>Comparison to {@code java.util.Optional}:</b> this method has no equivalent in Java 8's
   * {@code Optional} class. However, this common usage:
   *
   * {@snippet :
   * for (Foo foo : possibleFoo.asSet()) {
   *   doSomethingWith(foo);
   * }
   * }
   *
   * ... can be replaced with:
   *
   * {@snippet :
   * possibleFoo.ifPresent(foo -> doSomethingWith(foo));
   * }
   *

	srcSet := s.getHashedSet(srcObject)
	dstSet := s.getHashedSet(dstObject)

	cpSrcDstSame := srcSet == dstSet
	// Check if this request is only metadata update.
	if cpSrcDstSame && srcInfo.metadataOnly {
		// Version ID is set for the destination and source == destination version ID.

						hostIPCache[host] = hostIPSet
					}
				}
				if IPSet, ok := pathIPMap[endpoint.Path]; ok {
					if !IPSet.Intersection(hostIPSet).IsEmpty() {
						return nil, setupType,
							config.ErrInvalidErasureEndpoints(nil).Msg(fmt.Sprintf("same path '%s' can not be served by different port on same address", endpoint.Path))
					}
					pathIPMap[endpoint.Path] = IPSet.Union(hostIPSet)
				} else {