From 53588b94f36e6f34d063e78d9a1be7832975bb7c Mon Sep 17 00:00:00 2001
From: Joel Dice <git@seibutsu.mailsnare.net>
Date: Mon, 19 Oct 2009 10:36:48 -0600
Subject: [PATCH] compare lengths first in String.equals[IgnoreCase] for
 efficiency

---
 classpath/java/lang/String.java | 20 +++++++++++++++++---
 1 file changed, 17 insertions(+), 3 deletions(-)

diff --git a/classpath/java/lang/String.java b/classpath/java/lang/String.java
index 2233e4500b..e480b47be9 100644
--- a/classpath/java/lang/String.java
+++ b/classpath/java/lang/String.java
@@ -231,11 +231,25 @@ public final class String
   }
 
   public boolean equals(Object o) {
-    return this == o || (o instanceof String && compareTo((String) o) == 0);
+    if (this == o) {
+      return true;
+    } else if (o instanceof String) {
+      String s = (String) o;
+      return s.length == length && compareTo(s) == 0;
+    } else {
+      return false;
+    }
   }
 
-  public boolean equalsIgnoreCase(String s) {
-    return this == s || (s != null && compareToIgnoreCase(s) == 0);
+  public boolean equalsIgnoreCase(String o) {
+    if (this == o) {
+      return true;
+    } else if (o instanceof String) {
+      String s = (String) o;
+      return s.length == length && compareToIgnoreCase(s) == 0;
+    } else {
+      return false;
+    }
   }
 
   public int compareTo(String s) {