[lworld] RFR: 8364483: [lworld] Pre-register migrated classes in class loaders [v3]

[Dan Heidinga]

On Tue, 12 Aug 2025 20:56:59 GMT, Coleen Phillimore <coleenp at openjdk.org> wrote:

>> This change preloads and preregisters all classes in the migrated classes lists, in all class loaders.
>> Tested with tier1 locally and with -XX:+PrintSystemDictionaryAtExit.
>
> Coleen Phillimore has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Add assert (and test).

Marked as reviewed by heidinga (no project role).

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PR Review: https://git.openjdk.org/valhalla/pull/1520#pullrequestreview-3112805233