[java] Hibernate throws MultipleBagFetchException - cannot simultaneously fetch multiple bags

you can keep booth EAGER lists in JPA and add to at least one of them the JPA annotation @OrderColumn (with obviously the name of a field to be ordered). No need of specific hibernate annotations. But keep in mind it could create empty elements in the list if the chosen field does not have values starting from 0

 [...]
 @OneToMany(mappedBy="parent", fetch=FetchType.EAGER)
 @OrderColumn(name="orderIndex")
 private List<Child> children;
 [...]

in Children then you should add the orderIndex field

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Hibernate throws MultipleBagFetchException - cannot simultaneously fetch multiple bags