RFR: 8343506: [s390x] multiple test failures with ubsan

[Martin Doerr]

On Mon, 4 Nov 2024 05:27:59 GMT, Amit Kumar <amitkumar at openjdk.org> wrote:

> This is trivial patch which fixes the error I am seeing on s390x, while running tier1 with ubsan enabled. Please see JBS for more details.

Looks correct. Additional improvements could be done separately.

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Marked as reviewed by mdoerr (Reviewer).

PR Review: https://git.openjdk.org/jdk/pull/21864#pullrequestreview-2420693793