[jdk21u-dev] RFR: 8339238: Update to use jtreg 7.5.1 [v2]

[Severin Gehwolf]

On Fri, 13 Feb 2026 15:57:08 GMT, Adam Farley <afarley at openjdk.org> wrote:

>> Adam Farley has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   Compile NativeTestHelper with enable-preview
>>   
>>   Because otherwise it will not compile while using jtreg 7.5.1
>>   as TestNested's enable-preview is not inherited.
>>   
>>   Signed-off-by: Adam Farley <adfarley at ibm.com>
>
> As discussed [here](https://github.com/openjdk/jdk21u-dev/pull/2606) I have learned that the jtreg minimum version increase and the fix for Win8365790Test.java are two separate issues. 
> 
> Win8365790Test.java will be fixed in https://github.com/openjdk/jdk21u-dev/pull/2606
> 
> As for the foreign classes in TestNested.java, as you say, they do not appear to be preview classes in JDK25.
> 
> So JDK25 will not need this change in order to pass the test.

@adamfarley This is ready. Feel free to `/integrate` and I'll sponsor.

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PR Comment: https://git.openjdk.org/jdk21u-dev/pull/2605#issuecomment-3908280849