RFR [2/3]: 8139247 Improper locking of MethodData::_extra_data_lock

Hohensee, Paul hohensee at amazon.com
Wed Apr 14 17:43:39 UTC 2021

Lgtm, and see my comment on 8057038.


-----Original Message-----
From: jdk8u-dev <jdk8u-dev-retn at openjdk.java.net> on behalf of Peter Zhelezniakov <peter.zhelezniakov at bell-sw.com>
Date: Tuesday, December 22, 2020 at 4:18 AM
To: "jdk8u-dev at openjdk.java.net" <jdk8u-dev at openjdk.java.net>
Subject: RFR [2/3]: 8139247 Improper locking of MethodData::_extra_data_lock


This is the second backport request in a series of 3: [1], [2], [3]. This fix corrects a flaw that was made in the fix for [1].
The patch from jdk9 did not apply as is. One small change was needed to introduce err_msg that was absent in jdk9 code base.
Tested with Hotspot JTreg tests.
JBS issue: https://bugs.openjdk.java.net/browse/JDK-8139247
Webrev: http://cr.openjdk.java.net/~avoitylov/peterz/8139247/8139247/


[1] https://bugs.openjdk.java.net/browse/JDK-8057038
[2] https://bugs.openjdk.java.net/browse/JDK-8139247
[3] https://bugs.openjdk.java.net/browse/JDK-8231501

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