[jdk8u-dev] RFR: 8071507: (ref) Clear phantom reference as soft and weak references do

[David Holmes]

On Mon, 1 Aug 2022 16:30:17 GMT, Poonam Bajaj <poonam at openjdk.org> wrote:

> Backport of 8071507 and 8143847 from jdk8u-ri to jdk8u-dev.
> 
>     8071507: (ref) Clear phantom reference as soft and weak references do
>     8143847: Remove REF_CLEANER reference category
> 
> With these changes, phantom references are automatically cleared by the garbage collector like soft and weak references.
> 
> The changes are clean backport apart from a little manual adjustment for the hunk at line 246 in referenceProcessor.cpp.

This is an accurate backport. Thanks @poonamparhar !

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Marked as reviewed by dholmes (Reviewer).

PR: https://git.openjdk.org/jdk8u-dev/pull/94