git: openjdk/jdk: master: 8330174: Protection zone for easier detection of accidental zero-nKlass use

[Thomas Stuefe]

Changeset: a70eba8e
Branch: master
Author:    Thomas Stuefe <stuefe at openjdk.org>
Date:      2025-02-26 09:51:56 +0000
URL:       https://git.openjdk.org/jdk/commit/a70eba8e4212c2c7125475f69b3952197e7a8ce3

8330174: Protection zone for easier detection of accidental zero-nKlass use

Co-authored-by: Ioi Lam <iklam at openjdk.org>
Reviewed-by: iklam, rkennke

! src/hotspot/share/cds/archiveBuilder.cpp
! src/hotspot/share/cds/archiveBuilder.hpp
! src/hotspot/share/cds/archiveUtils.cpp
! src/hotspot/share/cds/dynamicArchive.cpp
! src/hotspot/share/cds/filemap.hpp
! src/hotspot/share/cds/metaspaceShared.cpp
! src/hotspot/share/cds/metaspaceShared.hpp
! src/hotspot/share/include/cds.h
! src/hotspot/share/memory/metaspace.cpp
! src/hotspot/share/oops/compressedKlass.cpp
! src/hotspot/share/oops/compressedKlass.hpp
! src/hotspot/share/oops/compressedKlass.inline.hpp
! src/hotspot/share/prims/whitebox.cpp
! src/hotspot/share/runtime/os.cpp
+ test/hotspot/jtreg/runtime/ErrorHandling/AccessZeroNKlassHitsProtectionZone.java
! test/lib/jdk/test/whitebox/WhiteBox.java