[jdk17u-dev] RFR: 8286460: Remove dependence on JAR filename in CDS tests

[Goetz Lindenmaier]

I backport this for parity with 17.0.6-oracle.

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Commit messages:
 - Backport 52dbfa99fe34d7b9469fba626e3577a22fd1d1fe

Changes: https://git.openjdk.org/jdk17u-dev/pull/716/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk17u-dev&pr=716&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8286460
  Stats: 126 lines in 14 files changed: 0 ins; 98 del; 28 mod
  Patch: https://git.openjdk.org/jdk17u-dev/pull/716.diff
  Fetch: git fetch https://git.openjdk.org/jdk17u-dev pull/716/head:pull/716

PR: https://git.openjdk.org/jdk17u-dev/pull/716