[jdk11u-dev] RFR: 8317307: test/jdk/com/sun/jndi/ldap/LdapPoolTimeoutTest.java fails with ConnectException: Connection timed out: no further information

[Amos Shi]

Backport of [JDK-8317307](https://bugs.openjdk.org/browse/JDK-8317307)

Testing
- Local: Passed, on MacOS M1 laptop
- Pipeline: 
- Testing Machine:

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Commit messages:
 - Backport b9b82631bf75dc93d9e11536b6872df4c89e9592

Changes: https://git.openjdk.org/jdk11u-dev/pull/2513/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk11u-dev&pr=2513&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8317307
  Stats: 2 lines in 1 file changed: 0 ins; 0 del; 2 mod
  Patch: https://git.openjdk.org/jdk11u-dev/pull/2513.diff
  Fetch: git fetch https://git.openjdk.org/jdk11u-dev.git pull/2513/head:pull/2513

PR: https://git.openjdk.org/jdk11u-dev/pull/2513