RFR: 8366908: Use a different class for testing JDK-8351654

[Coleen Phillimore]

java.time.Duration is a migrated class (to be a value type) in the Valhalla repo, so it's preloaded, which causes this test to fail.  Using a different java.base class achieves the purpose of this test.
Tested with tier1.

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Commit messages:
 - 8366908: Use a different class for testing JDK-8351654

Changes: https://git.openjdk.org/jdk/pull/27116/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=27116&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8366908
  Stats: 5 lines in 1 file changed: 1 ins; 1 del; 3 mod
  Patch: https://git.openjdk.org/jdk/pull/27116.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/27116/head:pull/27116

PR: https://git.openjdk.org/jdk/pull/27116