RFR: 8327000: GenShen: Integrate updated Shenandoah implementation of FreeSet into GenShen [v8]

[Kelvin Nilsen]

On Mon, 17 Jun 2024 20:35:59 GMT, William Kemper <wkemper at openjdk.org> wrote:

>> Kelvin Nilsen has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   Minor refinements to test programs
>>   
>>   TestAllocIntArrays: comments to explain behavior.
>>   TestOldGrowthTriggers: reduce the number of loop iterations so this test
>>   will not time out on less powerful test platforms.
>
> test/hotspot/jtreg/gc/shenandoah/oom/TestThreadFailure.java line 49:
> 
>> 47:             List<Object> root = new ArrayList<Object>();
>> 48:             while (true) {
>> 49:               root.add(new Object[SIZE]);
> 
> Accidental? Rest of file uses 4 spaces for indent.

Thanks.  fixing.

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PR Review Comment: https://git.openjdk.org/shenandoah/pull/440#discussion_r1644622472