RFR: 8376188: Win8365790Test cannot run on jtreg versions under 7.5.1+1

[Adam Farley]

This change ensures that the class "jtreg/SkippedException" can be found and used by the test while running with versions of jtreg that are under 7.5.1+1.


This has been tested elsewhere and seems to work well.
Test configs:
- JDK17 - jtreg 7.3.1+1
- JDK25 - jtreg 7.5.1+1 

https://bugs.openjdk.org/browse/JDK-8376188

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Commit messages:
 - Removing superfluous trailing whitespace
 - 8376188 Make Win8365790Test.java compatible with jtregs under 7.5.1+1

Changes: https://git.openjdk.org/jdk/pull/29416/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=29416&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8376188
  Stats: 2 lines in 1 file changed: 2 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk/pull/29416.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/29416/head:pull/29416

PR: https://git.openjdk.org/jdk/pull/29416