How to fix the Hibernate “object references an unsaved transient instance - save the transient instance before flushing” error

Question

I receive following error when I save the object using Hibernate

object references an unsaved transient instance - save the transient instance before flushi         


        

Answer 1

For the sake of completeness: A

org.hibernate.TransientPropertyValueException 

with message

object references an unsaved transient instance - save the transient instance before flushing

will also occur when you try to persist / merge an entity with a reference to another entity which happens to be detached.