code: protected function initializeStock()
      {
          $this->stockMode = StockSubjectModes::MODE_AUTO;
          $this->stockState = StockSubjectStates::STATE_OUT_OF_STOCK;
          $this->stockFloor = 0;
          $this->inStock = 0;
          $this->availableStock = 0;
          $this->virtualStock = 0;
          $this->replenishmentTime = 2;
          $this->minimumOrderQuantity = 1;
          $this->quoteOnly = false;
          $this->endOfLife = false;
      }
docs: Initializes the stock.