[lworld] Integrated: 8357373: [lworld] jdk/valhalla/valuetypes/ObjectMethods.java fails with -XX:+UseAtomicValueFlattening

[Roger Riggs]

On Thu, 4 Dec 2025 22:02:35 GMT, Roger Riggs <rriggs at openjdk.org> wrote:

> This test failing with VM options prompted a refatoring and cleanup of the test (and renaming to be more appropriate).
> The test is re-enabled with a 4 combinations of command line flags.
> 
> Refactored test to verify that hashcode changed with each change to a field. Previously, the test tried to compute the hashCode for the value class. That was fragile in the presence of the VM changing the layout information. Check the hashCodes are equal for objects that are `.equals`. Renamed to 'ValueObjectMethodsTest`.

This pull request has now been integrated.

Changeset: 3455c56c
Author:    Roger Riggs <rriggs at openjdk.org>
URL:       https://git.openjdk.org/valhalla/commit/3455c56c83741104e1405c2de6a62c76eea3b46c
Stats:     687 lines in 2 files changed: 354 ins; 333 del; 0 mod

8357373: [lworld] jdk/valhalla/valuetypes/ObjectMethods.java fails with -XX:+UseAtomicValueFlattening

Reviewed-by: liach

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PR: https://git.openjdk.org/valhalla/pull/1771