Hi,

I have a "HibernateException: identifier of an instance of com.webdmt.modelo.hibernate.Departamento was altered from Departamento de Informática to Laboratorio DEI" when trying to modify a primary key.

How can i modify a primary key without having this Exception?

Thanx guys!

By definition, primary keys cannot be modified. So if you need to change the identifier for an entity, you need to create and save a new object and then delete the old object.

Curtis ...