[jdk8u-dev] RFR: 8277159: Fix java/nio/file/FileStore/Basic.java test by ignoring /run/user/* mount points [v2]

[SendaoYan]

> Hi all,
> 
> This pull request contains a backport of commit [b6876649](https://github.com/openjdk/jdk/commit/b6876649a82bed508d817ccbde1600d00937e4b2) from the [openjdk/jdk](https://git.openjdk.org/jdk) repository.
> 
> The commit being backported was authored by Alex Kasko on 17 Nov 2021 and was reviewed by Brian Burkhalter and Aleksey Shipilev.
> 
> Thanks!

SendaoYan has updated the pull request incrementally with one additional commit since the last revision:

  Add "@libiray /test/lib" and "import jdk.test.lib.Platform;"

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Changes:
  - all: https://git.openjdk.org/jdk8u-dev/pull/705/files
  - new: https://git.openjdk.org/jdk8u-dev/pull/705/files/d4ef85fb..2f4d2fa0

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk8u-dev&pr=705&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk8u-dev&pr=705&range=00-01

  Stats: 2 lines in 1 file changed: 1 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk8u-dev/pull/705.diff
  Fetch: git fetch https://git.openjdk.org/jdk8u-dev.git pull/705/head:pull/705

PR: https://git.openjdk.org/jdk8u-dev/pull/705