git: openjdk/jdk17u-dev: 8305425: Thread.isAlive0 doesn't need to call into the VM

[Aleksey Shipilev]

Changeset: 4fd0ee52
Author:    Aleksey Shipilev <shade at openjdk.org>
Date:      2023-06-28 11:50:44 +0000
URL:       https://git.openjdk.org/jdk17u-dev/commit/4fd0ee52b3d5fcff1fa54467c2da52daa65d16ce

8305425: Thread.isAlive0 doesn't need to call into the VM

Reviewed-by: phh, mdoerr
Backport-of: 35cb303a2c0c8b32de257c02e012a1928a6b4594

! make/data/hotspot-symbols/symbols-unix
! src/hotspot/share/include/jvm.h
! src/hotspot/share/prims/jvm.cpp
! src/hotspot/share/runtime/thread.cpp
! src/java.base/share/classes/java/lang/Thread.java
! src/java.base/share/native/libjava/Thread.c
+ test/jdk/java/lang/Thread/IsAlive.java