Hi
I have a problem and I need an idea to solve it
I need to clon an object, change it and save the original object and update the clon, but when I do this Hibernate throws an exception like this: a different object with the same identifier value was already associated with the session
I understand this exception but I don't know how to do this,
please any idea will be helpful

Hi,

I think that after cloning your object you have to clear the ID / primary key attribute of the clone before you persist it. When creating the clone it is not known to Hibernate, and you can freely manipulate it's ID attribute.

I've done this before.

What you need to do is an eviction. Take the object that was loaded into Hibernate and evict it. The object becomes detached. Set the primary key or id of that evicted object to zero or null. Then, you can add the object back to the Hibernate Session and it will be treated as a new instance and saved with a new primary key when the transaction is comitted to the database.