JPA/Hibernate: @ManyToOne and @OneToOne relationships tagged as FetchType.LAZY and optional = false not loading lazily on em.find()?

I am not sure about JPA, but for many-to-one and one-to-one mappings the lazy values that are supported hibernate are proxy no-proxy and false out of which false is defaulted. Check this part of the DTD lazy="proxy|no-proxy|false and you can check this Link I think this answers your first question to an extend.

I am not sure about JPA, but for many-to-one and one-to-one mappings the lazy values that are supported hibernate are proxy, no-proxy and false out of which false is defaulted. Check this part of the DTD lazy="proxy|no-proxy|false" and you can check this Link. I think this answers your first question to an extend.

The default for lazy="proxy|no-proxy|false" is proxy, as written in the link you've posted (see 12): "lazy (optional - defaults to proxy): by default, single point associations are proxied. Lazy="no-proxy" specifies that the property should be fetched lazily when the instance variable is first accessed. This requires build-time bytecode instrumentation.

Lazy="false" specifies that the association will always be eagerly fetched. " – Kawu Oct 18 at 19:51.

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