if (hasNext()) {
        toRemove = iterator;
        return iterator.next();
      } else {
        throw new NoSuchElementException();
      }
    }

    @Override
    public void remove() {
      if (toRemove == null) {
        throw new IllegalStateException("no calls to next() since the last call to remove()");
      }
      toRemove.remove();
      toRemove = null;
    }

      if (hasNext()) {
        toRemove = iterator;
        return iterator.next();
      } else {
        throw new NoSuchElementException();
      }
    }

    @Override
    public void remove() {
      if (toRemove == null) {
        throw new IllegalStateException("no calls to next() since the last call to remove()");
      }
      toRemove.remove();
      toRemove = null;
    }

// from the end of payload. It also returns a byte which is equal to 255 if the
// padding was valid and 0 otherwise. See RFC 2246, Section 6.2.3.2.
func extractPadding(payload []byte) (toRemove int, good byte) {
	if len(payload) < 1 {
		return 0, 0
	}

	paddingLen := payload[len(payload)-1]
	t := uint(len(payload)-1) - uint(paddingLen)
	// if len(payload) >= (paddingLen - 1) then the MSB of t is zero

		delete(foundDirs, dir)
	}

	// Delete excessive directories.
	// Do not abort on context errors.
	for dir := range foundDirs {
		toRemove := pathJoin(volumeDir, path, dir+SlashSeparator)
		err = s.deleteFile(volumeDir, toRemove, true, true)
		diskHealthCheckOK(ctx, err)
		if err != nil {
			return err
		}
	}

	// Do the same for inline data
	dirs, err := xl.data.list()