git: openjdk/jdk-sandbox: om-world: Only read or add to cache from current thread

[duke]

Changeset: 9558895b
Author:    Axel Boldt-Christmas <axel.boldt-christmas at oracle.com>
Date:      2023-09-18 06:58:02 +0000
URL:       https://git.openjdk.org/jdk-sandbox/commit/9558895b94870360e567f181e2273ff157e2374f

Only read or add to cache from current thread

! src/hotspot/share/runtime/javaThread.inline.hpp
! src/hotspot/share/runtime/synchronizer.cpp
! src/hotspot/share/runtime/synchronizer.hpp