RFR: 8365436: ImageReaderTest fails when jmods directory not present

[Alan Bateman]

On Thu, 14 Aug 2025 09:34:06 GMT, David Beaumont <duke at openjdk.org> wrote:

> Changed test helper creation to know about linkable images, and changed how test skipping is reported (JUnit doesn't honor TestSkippedException, only TestAbortedException).

Marked as reviewed by alanb (Reviewer).

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PR Review: https://git.openjdk.org/jdk/pull/26774#pullrequestreview-3122960546