[jdk11u-dev] RFR: 8266421: Deadlock in Sound System

[Sergey Bylokhov]

This is the fix for a deadlock introduced in 11.0.2. The patch does not apply cleanly due to changes in the copyright and some changes in the context. The code of the patch is the same.  The new test passed.

JBS: https://bugs.openjdk.java.net/browse/JDK-8266421
Review: https://github.com/openjdk/jdk/pull/4141
Commit in jdk17: https://github.com/openjdk/jdk/commit/f6f82c31689e68f4263bbbe2314033d69f9049f5

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Commit messages:
 - Backport f6f82c31689e68f4263bbbe2314033d69f9049f5

Changes: https://git.openjdk.java.net/jdk11u-dev/pull/719/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk11u-dev&pr=719&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8266421
  Stats: 128 lines in 4 files changed: 106 ins; 11 del; 11 mod
  Patch: https://git.openjdk.java.net/jdk11u-dev/pull/719.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk11u-dev pull/719/head:pull/719

PR: https://git.openjdk.java.net/jdk11u-dev/pull/719