RFR: 8322282: Incorrect LoaderConstraintTable::add_entry after JDK-8298468

[David Holmes]

On Mon, 18 Dec 2023 12:03:44 GMT, Aleksey Shipilev <shade at openjdk.org> wrote:

> As reported here:
> https://mail.openjdk.org/pipermail/hotspot-compiler-dev/2023-December/071086.html
> 
> There is a regression introduced by [JDK-8298468](https://bugs.openjdk.org/browse/JDK-8298468), which looks like a simple typo:
> https://github.com/openjdk/jdk/commit/10737e168c967a08e257927251861bf2c14795ab#diff-49d18b7f77db80ff67872c7db1e4c87e98a126e63fff5f63353e4406db332b19R343
> 
> Additional testing:
>  - [ ] Linux x86_64 server fastdebug,`tier{1,2,3}`
>  - [ ] Linux AArch64 server fastdebug,`tier{1,2,3}`

I will need to check with the original fix but regardless this is obviously crying out for a regression test.

I and I still can't see any way that this leads to the NPE that was reported.

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PR Review: https://git.openjdk.org/jdk/pull/17140#pullrequestreview-1786780921