How do I know if an EclipseLink object is detached?

Question

Do you know any method to find out the state of a JPA object ?. I am facing some errors and I need to know if the object is detached or is being managed.

I am using EclipseLink 2.1.2

Answer 1

EntityManager.contains()

Verify that the instance is a managed entity instance that is relevant to the current save context.