When adding an item to a collection for which the owner is fetched as READ_ONLY the version update fails if the owner class has a parent class (with a join strategy), but without parent it works.
The problem is that the AbstractEntityPersister.getTableUpdateNeeded() returns with getTableHasColumns() (line 2748) when the owner is fetch as READ_ONLY. For a single table this probably works by luck.
But what is the correct behavior? Should it be possible to update an READ_ONLY fetched owner's collection?
MySql 5.1.37-1 (ubuntu)
This looks like a bug.
You should be able to add/remove entities from a unidirectional association, even if the owner is read-only.
This bug report does not indicate that the reported issue affects version 5.x. Versions prior to 5.x are no longer maintained. It would be a great help to the Hibernate team and community for someone to verify that the reported issue still affects version 5.x. If so, please add the 5.x version that you verified with to the list of affected-versions and attach the (preferably SSCCE) test case you used to do the verification to the report; from there the issues will be looked at during our triage meetings.
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As part of verifying that this issue affects 5.0, please just set the "Affects version". Leave the "verify-affects-5.0" label and leave the issue in "Awaiting Response" status; these are critical for us to be able to track these verifications and triage them. Thanks.