Spring Boot JPA Not Updating Nested Entity Relationships on Save - Transaction Issue?
I'm deploying to production and I'm trying to figure out I've been struggling with this for a few days now and could really use some help. I'm facing an issue with Spring Boot JPA where updates to a nested entity relationship aren't being persisted as expected. I have a `User` entity that has a one-to-many relationship with an `Order` entity. When I try to update the user's details and their associated orders, only the user information is saving, while the orders seem to be ignored. Here's a simplified version of my entities: ```java @Entity public class User { @Id @GeneratedValue(strategy = GenerationType.IDENTITY) private Long id; private String name; @OneToMany(mappedBy = "user", cascade = CascadeType.ALL, orphanRemoval = true) private List<Order> orders = new ArrayList<>(); // getters and setters } @Entity public class Order { @Id @GeneratedValue(strategy = GenerationType.IDENTITY) private Long id; private String product; @ManyToOne @JoinColumn(name = "user_id") private User user; // getters and setters } ``` In my service layer, I have the following code to update the user and their orders: ```java @Transactional public User updateUser(Long userId, User userUpdates) { User user = userRepository.findById(userId).orElseThrow(() -> new EntityNotFoundException("User not found")); user.setName(userUpdates.getName()); user.getOrders().clear(); user.getOrders().addAll(userUpdates.getOrders()); return userRepository.save(user); } ``` When I call this method, the user's name updates successfully, but the orders don't persist. I don't see any errors or exceptions thrown, and I’ve verified that the `userUpdates` object has the correct order data. I've also made sure to set the `user` reference in each `Order` object before saving. I suspect it might be related to the handling of the cascading operations or the transaction boundary. Does anyone have any insights on why the child entities are not being updated or saved? I've ensured that I’m using Spring Data JPA version 2.5.6 and Hibernate 5.5.3.Final. Any help would be greatly appreciated! Has anyone else encountered this? Thanks for any help you can provide! The project is a mobile app built with Java.