Found shared references to a collection org.hibernate.HibernateException

Question

I got this error message:

error: Found shared references to a collection: Person.relatedPersons

When I tried to execute ad

Answer 1

Consider an entity:

public class Foo{
private user;
/* with getters and setters */
}

And consider an Business Logic class:

class Foo1{
List user = new ArrayList<>();
user = foo.getUser();
}

Here the user and foo.getUser() share the same reference. But saving the two references creates a conflict.

The proper usage should be:

class Foo1 {
List user = new ArrayList<>();
user.addAll(foo.getUser);
}

This avoids the conflict.