git: openjdk/jdk21: 8311867: StructuredTaskScope.shutdown does not interrupt newly started threads

[Alan Bateman]

Changeset: 281aee96
Author:    Alan Bateman <alanb at openjdk.org>
Date:      2023-07-14 05:13:10 +0000
URL:       https://git.openjdk.org/jdk21/commit/281aee968aae70005f64dd97fa288c7ba0490e49

8311867: StructuredTaskScope.shutdown does not interrupt newly started threads

Reviewed-by: jpai
Backport-of: 92a04e201e68aa4d682053cef4b36180ec5620f5

! src/java.base/share/classes/java/util/concurrent/StructuredTaskScope.java
! src/java.base/share/classes/jdk/internal/misc/ThreadFlock.java
+ test/jdk/java/util/concurrent/StructuredTaskScope/StressShutdown.java