org.hibernate.PersistentObjectException: detached entity passed to persist

Question

I had successfully written my first master child example with hibernate. After few days I took it again and upgraded some libraries. No sure what did I do but I could never

Answer 1

This exists in @ManyToOne relation. I solved this issue by just using CascadeType.MERGE instead of CascadeType.PERSIST or CascadeType.ALL. Hope it helps you.

@ManyToOne(cascade = CascadeType.ALL)
@JoinColumn(name="updated_by", referencedColumnName = "id")
private Admin admin;

Solution:

@ManyToOne(cascade = CascadeType.MERGE)
@JoinColumn(name="updated_by", referencedColumnName = "id")
private Admin admin;