@Nullable
    private AbstractFilePatchInProgress findBestByStrip() {
      AbstractFilePatchInProgress best = null;
      int bestStrip = Integer.MAX_VALUE;

      for (AbstractFilePatchInProgress current : myVariants) {
        int currentStrip = current.getCurrentStrip();
        if (best == null ||
            currentStrip < bestStrip) {
          best = current;
          bestStrip = currentStrip;
        }
      }
      return best;
    }
@Nullable
    private AbstractFilePatchInProgress findBestByStrip()