[lworld] RFR: 8373575: [lworld] Fix and problem list failing JDK, langtools and HotSpot tier 1 tests under --enable-preview [v5]

[Leonid Mesnik]

On Mon, 15 Dec 2025 19:39:16 GMT, Daniel D. Daugherty <dcubed at openjdk.org> wrote:

>> Paul Hübner has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase. The pull request contains five additional commits since the last revision:
>> 
>>  - Merge branch 'lworld' into JDK-8373575
>>  - Move some tests to Xcomp list.
>>  - Add failing test to problemlist.
>>  - Add one of the AOT tests.
>>  - Problemlist and fix.
>
> test/jdk/ProblemList-Xcomp.txt line 35:
> 
>> 33: valhalla/valuetypes/ObjectNewInstance.java                      8369045 macosx-all
>> 34: valhalla/valuetypes/ProxyTest.java                              8369045 macosx-all
>> 35: valhalla/valuetypes/WeakReferenceTest.java                      8369045 macosx-all
> 
> Do these tests only fail with `-Xcomp` when `--enable-preview` is used?
> Or do these tests only fail with `-Xcomp` in `lworld` regardless of the `--enable-preview` value?
> 
> If it's the latter case, then `ProblemList-Xcomp.txt` is the right place.
> 
> Reading through [JDK-8369045](https://bugs.openjdk.org/browse/JDK-8369045), it sounds like
> `--enable-preview` is necessary so I don't think `ProblemList-Xcomp.txt` is the right place.

valhalla/valutypes/ tests add `--enable-preview` so they are going to fail if executed with `-Xcomp` only.

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PR Review Comment: https://git.openjdk.org/valhalla/pull/1793#discussion_r2620678648