[jdk25u] RFR: 8359423: Improve error message in case of missing jsa shared archive

[Christoph Langer]

On Mon, 22 Sep 2025 13:08:01 GMT, Matthias Baesken <mbaesken at openjdk.org> wrote:

> Backport of 8359423

Not sure why the backport isn't marked clean but it looks like upstream. Should be good 😄

-------------

Marked as reviewed by clanger (Reviewer).

PR Review: https://git.openjdk.org/jdk25u/pull/226#pullrequestreview-3283082484