RFR: 8373945: Use WB.fullGC() in ClassUnloader.unloadClass to force GC for vmTestbase tests [v5]

[SendaoYan]

On Wed, 24 Dec 2025 07:28:14 GMT, SendaoYan <syan at openjdk.org> wrote:

>>> There are references to `nsk.share.gc.GCClassUnloader` in some of the test descriptions that need updating. There are also comments like "Next, debugger forces debuggee to unload class, using memory stressing techique" that need updating. I think you need to review all the test description comments.
>>> 
>>> I think someone from the GC team should review the GC test changes since WB.fullGC() is a very different approach to ClassUnloader.
>> 
>> The two kinds of incorrect commets has been updated. I think i need some more time the check all the comments for the touched tests. Thanks for your reviews.
>
>> The two kinds of incorrect commets has been updated. I think i need some more time the check all the comments for the touched tests. Thanks for your reviews.
> 
> All the comments in touched tests has been checked.

> @sendaoYan Can you please update the summary of this PR and Bug and reflect the whole scope of changes.

I have updated to title of this PR and JBS as "Use WB.fullGC() in ClassUnloader.unloadClass to force GC for vmTestbase tests". If you have better concise summary, please let me known.

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PR Comment: https://git.openjdk.org/jdk/pull/28891#issuecomment-3748276900