git: openjdk/jdk: 8306929: Avoid CleanClassLoaderDataMetaspaces safepoints when previous versions are shared

[Stefan Johansson]

Changeset: 408cec51
Author:    Stefan Johansson <sjohanss at openjdk.org>
Date:      2023-05-04 11:00:44 +0000
URL:       https://git.openjdk.org/jdk/commit/408cec516bb5fd82fb6dcddeee934ac0c5ecffaf

8306929: Avoid CleanClassLoaderDataMetaspaces safepoints when previous versions are shared

Reviewed-by: coleenp, sspitsyn

! src/hotspot/share/classfile/classLoaderDataGraph.cpp
! src/hotspot/share/classfile/classLoaderDataGraph.inline.hpp
! src/hotspot/share/oops/instanceKlass.cpp
! src/hotspot/share/oops/instanceKlass.hpp
! test/hotspot/jtreg/serviceability/jvmti/RedefineClasses/RedefinePreviousVersions.java
+ test/hotspot/jtreg/serviceability/jvmti/RedefineClasses/RedefineSharedClassJFR.java