docs: static final int computeMinLgArrLongsFromCount(final int count) {
      final int upperCount = (int) Math.ceil(count / REBUILD_THRESHOLD);
      final int arrLongs = max(ceilingPowerOf2(upperCount), 1 << MIN_LG_ARR_LONGS);
      final int newLgArrLongs = Integer.numberOfTrailingZeros(arrLongs);
      return newLgArrLongs;
    }