How to update the list after delete an item of that list

Question

It will take a moment for me to explain this, so please stay with me. I have table NewsFeed that has OneToMany relationship with itself.

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Answer 1

When you delete an object you must remove all reference to that object before deleting it. If you do not, you can get a constraint error, or stale data in your persistence context, or in the 2nd level cache.

When removing the Feed, first remove it from the replies.