[jdk24u] RFR: 8347124: Clean tests with --enable-linkable-runtime

[Severin Gehwolf]

Clean backport of some test fixes which make JEP 493 enabled builds pass those tests. I'll follow-up with https://bugs.openjdk.org/browse/JDK-8347496 (once this is in).

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Commit messages:
 - Backport 1f457977f062e4ed219c6fa0fe26cb42acaf4bf2

Changes: https://git.openjdk.org/jdk24u/pull/18/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk24u&pr=18&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8347124
  Stats: 14 lines in 2 files changed: 10 ins; 0 del; 4 mod
  Patch: https://git.openjdk.org/jdk24u/pull/18.diff
  Fetch: git fetch https://git.openjdk.org/jdk24u.git pull/18/head:pull/18

PR: https://git.openjdk.org/jdk24u/pull/18