I've got an example where I have two classes: Customer, ValuedCustomer, where ValuedCustomer inherits from Customer. As InheritanceType.JOINED is used here, hibernate will generate a primary key in ValuedCustomer as well as all integrity constraints for that (I use Oracle10g dialect). I would like to give a name to that foreign key in ValuedCustomer (which is also a primary key there), but it's not possible.
In ValuedCustomer I use @PrimaryKeyJoinColumn annotation and @org.hibernate.annotations.Table with foreignKey property set in it. I would like that hibernate hbm2ddl generate foreign key constraint name as indicated in @ForeignKey annotation but it doesn't. It generates random constraint name instead.

I'm attaching example java project and generated schema file.