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8267110: Update java.util to use instanceof pattern variable

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Reviewed-by: lancea, naoto
This commit is contained in:
Patrick Concannon 2021-05-25 08:24:49 +00:00
parent 0a03fc84b3
commit a52c4ede2f
29 changed files with 142 additions and 266 deletions
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3
src/java.base/share/classes/java/util/TreeSet.java
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@ -299,9 +299,8 @@ public class TreeSet<E> extends AbstractSet<E>
// Use linear-time version if applicable
if (m.size()==0 && c.size() > 0 &&
c instanceof SortedSet &&
m instanceof TreeMap) {
m instanceof TreeMap<E, Object> map) {
SortedSet<? extends E> set = (SortedSet<? extends E>) c;
TreeMap<E,Object> map = (TreeMap<E, Object>) m;
if (Objects.equals(set.comparator(), map.comparator())) {
map.addAllForTreeSet(set, PRESENT);
return true;