EntityNotFoundException in Hibernate Many To One mapping however data exist

Question

I am getting javax.persistence.EntityNotFoundException error when I am trying to get User through Invoice object

invoice.getUser().getId()

Error is as follo

Answer 1

The problem could be that the direct entity does not exist, but also it could be that the referenced entity from that entity, normally for a EAGER fetch type, or optional=false.

Try this:

     //bi-directional many-to-one association to User
     @ManyToOne(fetch=FetchType.LAZY)
     @JoinColumn(name="Users_id")
     private User user = new User();

Answer 2

It should work when you add referencedColumnName = COLUMN in @JoinColumns of @ManyToOne annotation

Answer 3

If you use @ManyToOne, the referenced entity must exist. The only other option is to specify that field as a long and retrieve the referenced entity by means of a separate query.

Throws an exception (javax.persistence.EntityNotFoundException) instead of returning null if it can't find the requested entity.

Use @NotFound annotation to resolve this exception if you are lazy loading and not handling this exception manually.

 @ManyToOne(
        fetch = FetchType.LAZY)
    @NotFound(
        action = NotFoundAction.IGNORE)
    @JoinColumn(
        name = COLUMN,
        referencedColumnName = COLUMN,
        insertable = false,
        updatable = false)
    private Table table;