[jdk13u-dev] RFR: 8287672: jtreg test com/sun/jndi/ldap/LdapPoolTimeoutTest.java fails intermittently in nightly run

[Yuri Nesterenko]

Clean backport of a test fix. The fixed test passed OK.

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Commit messages:
 - Backport 7e211d7daac32dca8f26f408d1a3b2c7805b5a2e

Changes: https://git.openjdk.org/jdk13u-dev/pull/385/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk13u-dev&pr=385&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8287672
  Stats: 4 lines in 1 file changed: 3 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk13u-dev/pull/385.diff
  Fetch: git fetch https://git.openjdk.org/jdk13u-dev pull/385/head:pull/385

PR: https://git.openjdk.org/jdk13u-dev/pull/385