[jdk21u-dev] RFR: 8114830: (fs) Files.copy fails due to interference from something else changing the file system

[Goetz Lindenmaier]

I backport this for parity with 21.0.11-oracle.

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Commit messages:
 - Backport c132176b932dd136d5c4314e08ac97d0fee7ba4d

Changes: https://git.openjdk.org/jdk21u-dev/pull/2500/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk21u-dev&pr=2500&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8114830
  Stats: 159 lines in 2 files changed: 159 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk21u-dev/pull/2500.diff
  Fetch: git fetch https://git.openjdk.org/jdk21u-dev.git pull/2500/head:pull/2500

PR: https://git.openjdk.org/jdk21u-dev/pull/2500