java.lang.NullPointerException: Cannot invoke "com.proj.my.repository.OrderRepository.save(Object)" because "this.orderRepository" is null – Mysql
I want to test my orderService, each order has x cartItems, each cartItem is a product. I managed to do some code, and thought I got it right, but encountered a problem : java.lang.NullPointerException: Cannot invoke "com.proj.my.repository.OrderRepository.save(Object)" because "this.orderRepository" is…