[jdk11u-dev] RFR: 8210373: Deadlock in libj2gss.so when loading "j2gss" and "net" libraries in parallel.

[Goetz Lindenmaier]

I backport this for parity with 11.0.19-oracle.

Resolved Copyright, will mark as clean.

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Commit messages:
 - Backport 991f7c1303998b090cdc25f87b253afaf7302ec6

Changes: https://git.openjdk.org/jdk11u-dev/pull/1627/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk11u-dev&pr=1627&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8210373
  Stats: 6 lines in 1 file changed: 4 ins; 0 del; 2 mod
  Patch: https://git.openjdk.org/jdk11u-dev/pull/1627.diff
  Fetch: git fetch https://git.openjdk.org/jdk11u-dev pull/1627/head:pull/1627

PR: https://git.openjdk.org/jdk11u-dev/pull/1627