[jdk13u-dev] RFR: 8228448: Jconsole can't connect to itself

[Olga Mikhaltsova]

It's a backport of JDK-8228448 to jdk13u. The fix is already included to jdk11u (JDK-8248202). 
The patch applied cleanly. Checked this fix on macOS.

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Commit messages:
 - Backport 5decc88da489e751a0ed3b836aac0b6d51a1c2da

Changes: https://git.openjdk.java.net/jdk13u-dev/pull/11/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk13u-dev&pr=11&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8228448
  Stats: 2 lines in 1 file changed: 1 ins; 0 del; 1 mod
  Patch: https://git.openjdk.java.net/jdk13u-dev/pull/11.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk13u-dev pull/11/head:pull/11

PR: https://git.openjdk.java.net/jdk13u-dev/pull/11