hg: shenandoah/jdk8/hotspot: [backport] 8269661: JNI_GetStringCritical does not lock char array

[zgu at redhat.com]

Changeset: 53d3b8842b81
Author:    zgu
Date:      2021-07-26 18:09 +0000
URL:       https://hg.openjdk.java.net/shenandoah/jdk8/hotspot/rev/53d3b8842b81

[backport] 8269661: JNI_GetStringCritical does not lock char array
[backport] 8269650: Optimize gc-locker in [Get|Release]StringCritical for latin string
Reviewed-by: shade

! src/share/vm/prims/jni.cpp