git: openjdk/jdk20: 8297979: ZGC: Ensure consistent MemoryUsage from MemoryMXBean.getHeapMemoryUsage()

[Stefan Johansson]

Changeset: c47e64e4
Author:    Stefan Johansson <sjohanss at openjdk.org>
Date:      2022-12-16 08:06:09 +0000
URL:       https://git.openjdk.org/jdk20/commit/c47e64e4f3be80f434dd4dea9b6e8d282b2c2b32

8297979: ZGC: Ensure consistent MemoryUsage from MemoryMXBean.getHeapMemoryUsage()

Reviewed-by: stefank, ayang

! src/hotspot/share/gc/z/zCollectedHeap.cpp
! src/hotspot/share/gc/z/zCollectedHeap.hpp
! test/hotspot/jtreg/ProblemList-zgc.txt