[jdk21u-dev] RFR: 8370732: Use WhiteBox.getWhiteBox().fullGC() to provoking gc for nsk/jvmti tests [v2]

[SendaoYan]

On Wed, 3 Dec 2025 06:20:47 GMT, SendaoYan <syan at openjdk.org> wrote:

>> Hi all,
>> 
>> This pull request contains a backport of commit [54fe5021](https://github.com/openjdk/jdk/commit/54fe50210efe9ae6fad225b815cfdeb16c868115) from the [openjdk/jdk](https://git.openjdk.org/jdk) repository.
>> 
>> The commit being backported was authored by SendaoYan on 1 Nov 2025 and was reviewed by Chris Plummer, Leonid Mesnik and Serguei Spitsyn.
>> 
>> Thanks!
>
> SendaoYan 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 two additional commits since the last revision:
> 
>  - Merge branch 'openjdk:master' into backport-sendaoYan-54fe5021-master
>  - Backport 54fe50210efe9ae6fad225b815cfdeb16c868115

The related tests:
test/hotspot/jtreg/vmTestbase/nsk/jvmti/AttachOnDemand/attach020/TestDescription.java
test/hotspot/jtreg/vmTestbase/nsk/jvmti/AttachOnDemand/attach021/TestDescription.java
test/hotspot/jtreg/vmTestbase/nsk/jvmti/AttachOnDemand/attach022/TestDescription.java
test/hotspot/jtreg/vmTestbase/nsk/jvmti/GarbageCollectionFinish/gcfinish001/TestDescription.java
test/hotspot/jtreg/vmTestbase/nsk/jvmti/GarbageCollectionStart/gcstart001/TestDescription.java
test/hotspot/jtreg/vmTestbase/nsk/jvmti/GarbageCollectionStart/gcstart002/TestDescription.java
test/hotspot/jtreg/vmTestbase/nsk/jvmti/scenarios/allocation/AP12/ap12t001/TestDescription.java
test/hotspot/jtreg/vmTestbase/nsk/jvmti/scenarios/events/EM02/em02t002/TestDescription.java
test/hotspot/jtreg/vmTestbase/nsk/jvmti/scenarios/events/EM02/em02t006/TestDescription.java

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PR Comment: https://git.openjdk.org/jdk21u-dev/pull/2440#issuecomment-3701736747