git: openjdk/loom: fibers: Add an additional ReferenceQueue implementation that uses native monitors.

[duke]

Changeset: ba6e2afe
Author:    Ron Pressler <ron.pressler at oracle.com>
Date:      2021-10-29 13:49:21 +0000
URL:       https://git.openjdk.java.net/loom/commit/ba6e2afe31507bf563d8240e27481c0e8c640f0e

Add an additional ReferenceQueue implementation that uses native monitors.

! src/java.base/share/classes/java/lang/invoke/MethodType.java
! src/java.base/share/classes/java/lang/ref/Finalizer.java
+ src/java.base/share/classes/java/lang/ref/NativeReferenceQueue.java
! src/java.base/share/classes/java/lang/ref/Reference.java
! src/java.base/share/classes/java/lang/ref/ReferenceQueue.java
! src/java.base/share/classes/jdk/internal/access/JavaLangRefAccess.java