RFR: 8357826: Avoid running some jtreg tests when asan is configured [v5]

[Lutz Schmidt]

On Fri, 6 Jun 2025 11:34:04 GMT, Matthias Baesken <mbaesken at openjdk.org> wrote:

>> There are a couple of jtreg tests, especially in the HS area, with very special assumptions about memory layout/sizes .
>> Those fail when the address sanitizer is configured ( --enable-asan ).
>> The change adds a way to tag those tests with 'requires' so that they can be avoided easily when running jtreg tests with ASAN enabled.
>> Adjusting the tests for "pleasing" the sanitizer is not always desired (if possible for some tests it can be done later) .
>> While at it, also same is also added for ubsan .
>
> Matthias Baesken has updated the pull request incrementally with one additional commit since the last revision:
> 
>   exclude AbsPathInImage test from asan

Changes look good technically. No add'l requirements from my side. 

As already discussed, some reasoning why a particular test does not work with asan is more than desirable - it's required. As @plummercj said, @comments are ok if the reason can be condensed into a one-liner.

I'll approve once the requests from others are honored.

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Changes requested by lucy (Reviewer).

PR Review: https://git.openjdk.org/jdk/pull/25575#pullrequestreview-2907694852