[jdk17u-dev] RFR: 8286160: (fs) Files.exists returns unexpected results with C:\pagefile.sys because it's not readable

[Goetz Lindenmaier]

A clean backport to fix this windows issue.

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

Commit messages:
 - Backport d482d7f5b99e89185471c05cde797f13405c32f2

Changes: https://git.openjdk.org/jdk17u-dev/pull/2859/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk17u-dev&pr=2859&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8286160
  Stats: 47 lines in 2 files changed: 33 ins; 3 del; 11 mod
  Patch: https://git.openjdk.org/jdk17u-dev/pull/2859.diff
  Fetch: git fetch https://git.openjdk.org/jdk17u-dev.git pull/2859/head:pull/2859

PR: https://git.openjdk.org/jdk17u-dev/pull/2859