Integrated: JDK-8307810: Consistently use LockingMode instead of UseHeavyMonitors

[Thomas Stuefe]

On Wed, 10 May 2023 11:20:16 GMT, Thomas Stuefe <stuefe at openjdk.org> wrote:

> [JDK-8291555](https://bugs.openjdk.org/browse/JDK-8291555) phased out UseHeavyMonitors in favor of LockingMode=0. We forgot to apply these changes to PPC and S390. 
> 
> Since UseHeavyMonitors implies LockingMode, but not vice versa, we now have a mismatch if JVM is started with LockingMode=0 but without UseHeavyMonitors. That leads to crashes.
> 
> The patch fixes that, and in addition makes sure that if LockingMode=0 is set, we are setting UseHeavyMonitors too.

This pull request has now been integrated.

Changeset: 984fbbbc
Author:    Thomas Stuefe <stuefe at openjdk.org>
URL:       https://git.openjdk.org/jdk/commit/984fbbbcabca475c3c3af7c10a843759744c1472
Stats:     10 lines in 5 files changed: 0 ins; 0 del; 10 mod

8307810: Consistently use LockingMode instead of UseHeavyMonitors

Reviewed-by: dcubed, mdoerr, dholmes, amitkumar

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PR: https://git.openjdk.org/jdk/pull/13900