RFR: 8287596: Reorg jdk.test.lib.util.ForceGC [v10]

[Daniel Fuchs]

On Fri, 1 Jul 2022 14:26:24 GMT, Roger Riggs <rriggs at openjdk.org> wrote:

>> Thanks @XueleiFan, that's fine by me!
>
> When using Reference/ReferenceQueue there is no Cleaner, only normal reference processing (via GC).

I have tests that use Reference/ReferenceQueue to check that an object that uses a Cleaner has been garbage collected. I don't use ForceGC in those tests because it's much more efficient to wait on my ReferenceQueue rather than having ForceGC  wait on something else.

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PR: https://git.openjdk.org/jdk/pull/8979