JPA, Hibernate, Embedded, and OneToOne

I'm using JPA and Hibernate, and have an @Entity which includes an @ElementCollection of an @Embeddable component, which has two @Embeddable components itself, of the same type, which have a @OneToOne association with another @Entity.

Basically:

@Entity
public class Company {
    // ...
    @ElementCollection
    private List<Employee> employees;
    // ...
}

@Embeddable
public class Employee {
    // ...
    @Embedded
    private Address residentialAddress;
    @Embedded
    private Address postalAddress;
    // ...
}

@Embeddable
public class Address {
    // ...
    @OneToOne
    private HousingInfo housingInfo;
    // ...
}

(Note that the names of the classes have been changed to protect the innocent.)

Now, the problem I'm having is I'm getting an error trying to autoupdate the schema:

create table company_employees (company_id bigint not null, employees_collection&&element_residential_address_housing_info tinyblob, employees_collection&&element_postal_address_hou开发者_如何转开发sing_info tinyblob)

MySQL clearly doesn't like the &&s. We're using a subclass of org.hibernate.cfg.DefaultComponentSafeNamingStrategy, which doesn't insert &&s anywhere that I can see.

I tried @AssociationOverride, but it appeared to be ignored, regardless of which level I put it at. That is, I tried overriding the attributes in Company (@AssociationOverride(name = "residentialAddress.housingInfo', joinColumns = @JoinColumn(name = "residential_housing")) on the List, etc.), and also tried it in Employee (@AssociationOverride(name = "housingInfo", joinColumns = @JoinColumn(name = "residential_housing")) on residentialAddress, etc.), but neither seemed to do anything, at all.

---

Apparently @AttributeOverride worked, even though, from the documentation, it seemed I was supposed to use @AssociationOverride.