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8277090: jsr166 refresh for jdk19

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Reviewed-by: alanb, psandoz
This commit is contained in:
Doug Lea 2022-05-04 19:24:19 +00:00
parent c5a0687f80
commit 00e6c63cd1
13 changed files with 2726 additions and 1640 deletions
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4
src/java.base/share/classes/java/util/concurrent/locks/AbstractQueuedSynchronizer.java
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@ -1524,7 +1524,9 @@ public abstract class AbstractQueuedSynchronizer
*/
private boolean canReacquire(ConditionNode node) {
// check links, not status to avoid enqueue race
return node != null && node.prev != null && isEnqueued(node);
Node p; // traverse unless known to be bidirectionally linked
return node != null && (p = node.prev) != null &&
(p.next == node || isEnqueued(node));
}
/**