[lworld] RFR: 8375328: [lworld] JNI IsSameObject function doesn't use the alternate substitutability method

[Frederic Parain]

On Tue, 20 Jan 2026 15:08:49 GMT, Coleen Phillimore <coleenp at openjdk.org> wrote:

> Looks good. Did we run tier1-4 with -XX:+UseAltS*M ?

We need JDK-837472 to be in before being able to run all these tiers reliably with the alternate substitutability method.

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PR Comment: https://git.openjdk.org/valhalla/pull/1905#issuecomment-3773862008