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8221120: CopyOnWriteArrayList.set should always have volatile write semantics

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Reviewed-by: martin
This commit is contained in:
Doug Lea 2019-05-02 06:33:28 -07:00
parent d97dd4d554
commit 9f5e9b5b5f
1 changed files with 2 additions and 1 deletions
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3
src/java.base/share/classes/java/util/concurrent/CopyOnWriteArrayList.java
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@ -413,8 +413,9 @@ public class CopyOnWriteArrayList<E>
if (oldValue != element) { if (oldValue != element) {
es = es.clone(); es = es.clone();
es[index] = element; es[index] = element;
setArray(es);
} }
// Ensure volatile write semantics even when oldvalue == element
setArray(es);
return oldValue; return oldValue;
} }
} }