public class ProductServiceImpl implements ProductService {
public List<Product> listAll() {
List<Product> products = new ArrayList<Product>();
products.add(new Product(1L, "Juicy apple", 0.40));
products.add(new Product(2L, "Fresh orange", 0.30));
products.add(new Product(3L, "Yellow banana", 0.55));
products.add(new Product(4L, "Delicious grapes", 0.50));
products.add(new Product(5L, "Pink Peach", 0.45));
return products;
}