git: openjdk/jdk21u: master: 2 new changesets

[Aleksey Shipilev]

Changeset: 55d0c790
Author:    Aleksey Shipilev <shade at openjdk.org>
Date:      2023-10-19 18:26:14 +0000
URL:       https://git.openjdk.org/jdk21u/commit/55d0c790896f32ab6373e6bb3283337503904d98

8316929: Shenandoah: Shenandoah degenerated GC and full GC need to cleanup old OopMapCache entries

Backport-of: e25121d1d908bd74e7a5914d85284ab322bed1a3

! src/hotspot/share/gc/shenandoah/shenandoahVMOperations.cpp

Changeset: 87ca2931
Author:    Aleksey Shipilev <shade at openjdk.org>
Date:      2023-10-19 18:28:23 +0000
URL:       https://git.openjdk.org/jdk21u/commit/87ca29312f0733ad595c8f6fe98e2dccf745d994

8309663: test fails "assert(check_alignment(result)) failed: address not aligned: 0x00000008baadbabe"

Backport-of: 83edffa608d998a118d1d12f62d73be40a8982bc

! src/hotspot/share/prims/jvmtiTagMap.cpp
! test/hotspot/jtreg/ProblemList-zgc.txt