[aarch64-port-dev ] git: openjdk/aarch64-port: master: 8188055: (ref) Add Reference::refersTo predicate

[Kim Barrett]

Changeset: 6023f6b1
Author:    Kim Barrett <kbarrett at openjdk.org>
Date:      2020-11-04 09:18:23 +0000
URL:       https://github.com/openjdk/aarch64-port/commit/6023f6b1

8188055: (ref) Add Reference::refersTo predicate

Reviewed-by: mchung, pliden, rriggs, dholmes, ihse, smarks, alanb

! make/hotspot/symbols/symbols-unix
! src/hotspot/share/classfile/javaClasses.hpp
! src/hotspot/share/classfile/javaClasses.inline.hpp
! src/hotspot/share/gc/shared/referenceProcessor.cpp
! src/hotspot/share/include/jvm.h
! src/hotspot/share/oops/instanceRefKlass.cpp
! src/hotspot/share/prims/jvm.cpp
! src/java.base/share/classes/java/lang/ref/PhantomReference.java
! src/java.base/share/classes/java/lang/ref/Reference.java
+ src/java.base/share/native/libjava/PhantomReference.c
! src/java.base/share/native/libjava/Reference.c
+ test/hotspot/jtreg/gc/TestReferenceRefersTo.java
+ test/jdk/java/lang/ref/ReferenceRefersTo.java