[jdk17u-dev] RFR: 8304696: Duplicate class names in dynamicArchive tests can lead to test failure

[Goetz Lindenmaier]

I backport this for parity with 17.0.11-oracle.

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Commit messages:
 - Backport b2240bf870cd57983fda0bc3b0e205acfdd1fd2a

Changes: https://git.openjdk.org/jdk17u-dev/pull/2087/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk17u-dev&pr=2087&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8304696
  Stats: 10 lines in 2 files changed: 2 ins; 2 del; 6 mod
  Patch: https://git.openjdk.org/jdk17u-dev/pull/2087.diff
  Fetch: git fetch https://git.openjdk.org/jdk17u-dev.git pull/2087/head:pull/2087

PR: https://git.openjdk.org/jdk17u-dev/pull/2087