[jdk11u-dev] RFR: 8227438: [TESTLIB] Determine if file exists by Files.exists in function FileUtils.deleteFileIfExistsWithRetry

[Andrew Lu]

I backport this for parity with 11.0.22-oracle.

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Commit messages:
 - Backport 2169215b298707d5e160bed81a2aa3c6ba814a18

Changes: https://git.openjdk.org/jdk11u-dev/pull/2300/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk11u-dev&pr=2300&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8227438
  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk11u-dev/pull/2300.diff
  Fetch: git fetch https://git.openjdk.org/jdk11u-dev.git pull/2300/head:pull/2300

PR: https://git.openjdk.org/jdk11u-dev/pull/2300