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Type: Enhancement
Resolution: Fixed
Priority: P4
Fix Version/s: 17
Affects Version/s: 18
Component/s: hotspot
Labels:
- JNI_Get*Critical
- gc-locker

Subcomponent:
gc
Resolved In Build:
b30

Issue	Fix Version	Assignee	Priority	Status	Resolution	Resolved In Build
JDK-8269976	18	Kim Barrett	P4	Resolved	Fixed	b06
JDK-8270714	17.0.1	Kim Barrett	P4	Resolved	Fixed	b03
JDK-8269898	17	Kim Barrett	P4	Closed	Not an Issue
JDK-8271299	11.0.13	Zhengyu Gu	P4	Resolved	Fixed	b01

Currently, JNI GetStringCritical locks gc locker for all strings including latin and non-latin until ReleaseStringCritical.
But for latin, it's not necessary to still lock gc locker after GetStringCritical, as it's copied anyway whether obj pining is supported or not, so it's fine to unlock gc locker after GetStringCritical.

backported by

JDK-8269976 Optimize gc-locker in [Get|Release]StringCritical for latin string

Resolved

JDK-8270714 Optimize gc-locker in [Get|Release]StringCritical for latin string

Resolved

JDK-8271299 Optimize gc-locker in [Get|Release]StringCritical for latin string

Resolved

JDK-8269898 Optimize gc-locker in [Get|Release]StringCritical for latin string

Closed

relates to

JDK-8269661 JNI_GetStringCritical does not lock char array

Closed

JDK-8269697 JNI_GetPrimitiveArrayCritical() should not accept object array

Resolved

links to

Commit openjdk/jdk11u-dev/2a3d9080

Commit openjdk/jdk17/0f4e07b7

Review openjdk/jdk11u-dev/109

Review openjdk/jdk17/209

Review openjdk/jdk/4637

(1 relates to, 5 links to)

Assignee:: Kim Barrett
Reporter:: Hamlin Li
Votes:: 0 Vote for this issue
Watchers:: 4 Start watching this issue

Created:: 2021-06-29 20:06
Updated:: 2025-01-29 10:21
Resolved:: 2021-08-27 07:13

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