From e75e686431b7ed08de78c5b53d55dd33ff423ef9 Mon Sep 17 00:00:00 2001
From: Sebastian Bazley <sebb@apache.org>
Date: Fri, 11 May 2012 00:40:26 +0000
Subject: [PATCH] Shortcut checks for identical objects

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/trunk@1336985 13f79535-47bb-0310-9956-ffa450edef68
---
 src/main/java/org/apache/commons/math3/util/Pair.java | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/main/java/org/apache/commons/math3/util/Pair.java b/src/main/java/org/apache/commons/math3/util/Pair.java
index 6d4e1bd4a..5a7dcff27 100644
--- 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 {