@Override
  public @Nullable IndentOptionsAdjuster getIndentOptionsAdjuster() {
    try {
      List<LineIndentInfo> linesInfo = calcLineIndentInfo(myProgressIndicator);
      if (linesInfo != null) {
        return new IndentOptionsAdjusterImpl(new IndentUsageStatisticsImpl(linesInfo));
      }
    }
    catch (IndexNotReadyException ignore) { }
    return null;
  }
@Override
  public @Nullable IndentOptionsAdjuster getIndentOptionsAdjuster()