[jdk17u-dev] RFR: 8296329: jar validator doesn't account for minor class file version

[Radim Vansa]

Technically not clean, changed Java versions in test (separate commit)

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Commit messages:
 - Change Java versions for backported test
 - Backport faf48e61be4f97f725b053aa351d3c64638546bf

Changes: https://git.openjdk.org/jdk17u-dev/pull/1132/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk17u-dev&pr=1132&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8296329
  Stats: 127 lines in 3 files changed: 123 ins; 1 del; 3 mod
  Patch: https://git.openjdk.org/jdk17u-dev/pull/1132.diff
  Fetch: git fetch https://git.openjdk.org/jdk17u-dev pull/1132/head:pull/1132

PR: https://git.openjdk.org/jdk17u-dev/pull/1132