The PersistencePlugin currently generates OneToOne relationships like this:

@OneToOne
private Profile profile;

public Profile getProfile()

{ return this.profile; }

public void setProfile(final Profile profile)

{ this.profile = profile; }

...and...

@OneToOne
private Customer customer;

public Customer getCustomer()

{ return this.customer; }

public void setCustomer(final Customer customer) { this.customer = customer; }

Ideally one side of the relationship should be marked as the 'inverse':

@OneToOne(mappedBy="profile")
private Customer customer;

public Customer getCustomer() { return this.customer; }

public void setCustomer(final Customer customer)

{ this.customer = customer; }