* SortedSet#comparator()}, which returns {@code null} to indicate natural ordering.
   */
  @Override
  public Comparator<? super E> comparator() {
    return comparator;
  }

  @Override // needed to unify the iterator() methods in Collection and SortedIterable
  public abstract UnmodifiableIterator<E> iterator();

  /**
   * {@inheritDoc}
   *

		unlockOnDefer = true
	}

	checkPrecondFn := opts.CheckPrecondFn
	opts.CheckPrecondFn = nil // do not need to apply pre-conditions at lower layer.
	opts.NoLock = true        // no locks needed at lower levels for getObjectInfo()
	objInfo, zIdx, err := z.getLatestObjectInfoWithIdx(ctx, bucket, object, opts)
	if err != nil {
		if objInfo.DeleteMarker {
			if opts.VersionID == "" {
				return &GetObjectReader{

    *   Both seeded and unseeded initializers will always generate the same
        values every time they are called (for a given variable shape). For
        unseeded initializers (`seed=None`), a random seed will be created and
        assigned at initializer creation (different initializer instances get
        different seeds).
    *   An unseeded initializer will raise a warning if it is reused (called)

		fi.Checksum = cs.AppendTo(nil, checksumCombined)
		if opts.EncryptFn != nil {
			fi.Checksum = opts.EncryptFn("object-checksum", fi.Checksum)
		}
	}
	delete(fi.Metadata, hash.MinIOMultipartChecksum) // Not needed in final object.

	// Save the final object size and modtime.
	fi.Size = objectSize
	fi.ModTime = opts.MTime
	if opts.MTime.IsZero() {
		fi.ModTime = UTCNow()
	}

	if err := meta.load(ctx, z.serverPools[0], z.serverPools); err != nil {
		return err
	}

	update, err := meta.validate(z.serverPools)
	if err != nil {
		return err
	}

	// if no update is needed return right away.
	if !update {
		z.poolMetaMutex.Lock()
		z.poolMeta = meta
		z.poolMetaMutex.Unlock()
	} else {
		newMeta := newPoolMeta(z, meta)
		if err = newMeta.save(ctx, z.serverPools); err != nil {

		case path[r] == '.' && path[r+1] == '.' && (r+2 == n || path[r+2] == '/'):
			// .. element: remove to last / - assume it has to be cleaned.
			return true
		default:
			// real path element.
			// add slash if needed
			if rooted && w != 1 || !rooted && w != 0 {
				w++
			}
			// copy element
			for ; r < n && path[r] != '/'; r++ {
				w++
			}
			// allow one slash, not at end
			if r < n-1 && path[r] == '/' {

	//
	// This essentially splits the workload properly and also allows for network
	// utilization to be optimal, instead of blindly throttling the way we are
	// doing below. However the changes that are needed here are a bit involved,
	// further discussion advised. Remove this comment and remove the worker model
	// for this function in future.
	maxWorkers := runtime.GOMAXPROCS(0) / 2

          return finishCollapseFrom(sequence, i + 1, len, replacement, builder, true);
        }
      }
    }
    // no replacement needed
    return sequence.toString();
  }

  /**
   * Collapses groups of matching characters exactly as {@link #collapseFrom} does, except that

                buff.mojo("mojo").a(' ');
                buff.project("project");
                slf4jLogger.debug(buff.toString());
            }
        }
    }

    // Needed to make this method package visible to make writing a unit test possible
    // Maybe it's better to move some of those methods to separate class (SoC).
    void properties(CliRequest cliRequest) throws Exception {

		HTTPStatusCode: http.StatusBadRequest,
	},
	ErrInvalidQuoteFields: {
		Code:           "InvalidQuoteFields",
		Description:    "The QuoteFields is invalid. Only ALWAYS and ASNEEDED are supported.",
		HTTPStatusCode: http.StatusBadRequest,
	},
	ErrInvalidRequestParameter: {
		Code:           "InvalidRequestParameter",