Hibernate inserts duplicates into a @OneToMany collection

Question

I have a question concerning Hibernate 3.6.7 and JPA 2.0.

Consider following entities (some getters and setters are omitted for brevity):

@Entity
pub         


        

Answer 1

Managed this by just calling the empty() method. For this scenario,

parent.getChildren().isEmpty()

before

parent.getChildren().add(child);