[jdk21u-dev] RFR: 8326591: New test JmodExcludedFiles.java fails on Windows when --with-external-symbols-in-bundles=public is used

[Sonia Zaldana Calles]

Hi all, 

This pull request contains a backport of [43c6f0b5880899b797fab2f851bd35be1c342439](https://github.com/openjdk/jdk/commit/43c6f0b5880899b797fab2f851bd35be1c342439). 

Testing: 
- [x] Modified test case passes. 

Thanks!

-------------

Depends on: https://git.openjdk.org/jdk21u-dev/pull/378

Commit messages:
 - Backport 43c6f0b5880899b797fab2f851bd35be1c342439

Changes: https://git.openjdk.org/jdk21u-dev/pull/393/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk21u-dev&pr=393&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8326591
  Stats: 48 lines in 1 file changed: 30 ins; 5 del; 13 mod
  Patch: https://git.openjdk.org/jdk21u-dev/pull/393.diff
  Fetch: git fetch https://git.openjdk.org/jdk21u-dev.git pull/393/head:pull/393

PR: https://git.openjdk.org/jdk21u-dev/pull/393