[jdk11u-dev] RFR: 8156889: ListKeychainStore.sh fails in some virtualized environments

[Andrew Lu]

I backport this for parity with 11.0.23-oracle.

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Commit messages:
 - Backport 82c8b28f4005c3c335d4fd60c2e3b55adfd200c6
 - Backport 82c8b28f4005c3c335d4fd60c2e3b55adfd200c6
 - Backport 82c8b28f4005c3c335d4fd60c2e3b55adfd200c6

Changes: https://git.openjdk.org/jdk11u-dev/pull/2496/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk11u-dev&pr=2496&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8156889
  Stats: 449 lines in 4 files changed: 202 ins; 247 del; 0 mod
  Patch: https://git.openjdk.org/jdk11u-dev/pull/2496.diff
  Fetch: git fetch https://git.openjdk.org/jdk11u-dev.git pull/2496/head:pull/2496

PR: https://git.openjdk.org/jdk11u-dev/pull/2496