Jonathan Lalou's blog

Case:

Entity declaration:

    @OneToMany(cascade = CascadeType.ALL, orphanRemoval = true)
    private List<Foo> foos = Lists.newArrayList();

This block

            user.getFoos().clear();
// instantiate `foos`, eg: final List<Foo> foos = myService.createFoos(bla, bla);
            user.setFoos(foos);

generates this error:

org.springframework.orm.jpa.JpaSystemException: A collection with cascade="all-delete-orphan" was no longer referenced by the owning entity instance: com.github.lalou.jonathan.blabla.User.foos