Hello,
I was trying to find a solution that would avoid using:

@OneToMany(fetch = FetchType.EAGER)

That's because I don't always want my relationship to be eager. I would like to use `join fetch` in my JPQL query when I need the relationship to be eager.

I have a workaround which is as below:

public class OtmCustomer {

   //...

    @OneToMany(cascade = CascadeType.ALL)
    @JoinColumn(name = "customer_id")
    private List<OtmAccount> accounts = new ArrayList<>();

    @OneToMany(cascade = CascadeType.ALL)
    @JoinColumn(name = "customer_id")
    private Set<OtmAddress> addresses = new HashSet<>();

One of my collections has to be a Set (because a Set is not a Bag). Is it the proper way to work with it? Also, I don't understand why moving to a Set is fixing the issue. Any explanation would be welcome .

Thanks!