Shortcut checks for identical objects

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/trunk@1336985 13f79535-47bb-0310-9956-ffa450edef68
2012-05-11 00:40:26 +00:00 · 2012-05-11 00:40:26 +00:00 · e75e686431
parent 1822d25471
commit e75e686431
1 changed files with 3 additions and 0 deletions
--- a/src/main/java/org/apache/commons/math3/util/Pair.java
+++ b/src/main/java/org/apache/commons/math3/util/Pair.java
@ -83,6 +83,9 @@ public class Pair<K, V> {
     */
    @Override
    public boolean equals(Object o) {
+        if (this == o) {
+            return true;
+        }
        if (!(o instanceof Pair)) {
            return false;
        } else {