@Override
    public boolean equals(Object o) {
        if (this == o) return true;
        if (o == null || getClass() != o.getClass()) return false;

        Product product = (Product) o;

        if (name != null ? !name.equals(product.name) : product.name != null) return false;
        if (sku != null ? !sku.equals(product.sku) : product.sku != null) return false;

        return true;
    }