I'm developing a somewhat big project using JPA and everything works fine with hibernate pre-5.

I tried to upgrade to 5.0.0.CR2 to test for problems and indeed there is one.

I've an entity with a lot of related entities of this kind:

  @OrderColumn
  @OneToMany(cascade = CascadeType.ALL, fetch = FetchType.EAGER)
  private List<Recipient> recipients;
...
  @OrderColumn
  @OneToMany(cascade = CascadeType.ALL, fetch = FetchType.EAGER)
  private List<Input> inputs;
...

And I'm unable to store it on the db, I get an error of this kind:

Caused by: java.sql.SQLIntegrityConstraintViolationException: integrity constraint violation: NOT NULL check constraint; SYS_CT_10259 table: MYENTITY_RECIPIENT column: RECIPIENTS_ID

Everything works fine with hibernate 4.3.10.

The project is too big to try to isolate the problem and upload it here.
Is there anything else I can do to help understand the regression?