[jdk21u] Integrated: 8315696: SignedLoggerFinderTest.java test failed

[Sean Coffey]

Test case fix up. Should be a clean backport.

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Commit messages:
 - Backport e409d07ae84c693b656c02befb636593f9293635

Changes: https://git.openjdk.org/jdk21u/pull/174/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk21u&pr=174&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8315696
  Stats: 147 lines in 8 files changed: 74 ins; 64 del; 9 mod
  Patch: https://git.openjdk.org/jdk21u/pull/174.diff
  Fetch: git fetch https://git.openjdk.org/jdk21u.git pull/174/head:pull/174

PR: https://git.openjdk.org/jdk21u/pull/174