From 96723996663a595cb1d491b09e0a1707a01dc5f0 Mon Sep 17 00:00:00 2001
From: Luc Maisonobe <luc@apache.org>
Date: Tue, 3 Nov 2015 12:12:19 +0100
Subject: [PATCH] Replaced use of inefficient keyset with use of entryset.

---
 .../commons/math3/exception/util/ExceptionContext.java    | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/src/main/java/org/apache/commons/math3/exception/util/ExceptionContext.java b/src/main/java/org/apache/commons/math3/exception/util/ExceptionContext.java
index a9fd95cec..1a78bd38f 100644
--- a/src/main/java/org/apache/commons/math3/exception/util/ExceptionContext.java
+++ b/src/main/java/org/apache/commons/math3/exception/util/ExceptionContext.java
@@ -283,12 +283,12 @@ public class ExceptionContext implements Serializable {
     private void serializeContext(ObjectOutputStream out)
         throws IOException {
         // Step 1.
-        final int len = context.keySet().size();
+        final int len = context.size();
         out.writeInt(len);
-        for (String key : context.keySet()) {
+        for (Map.Entry<String, Object> entry : context.entrySet()) {
             // Step 2.
-            out.writeObject(key);
-            final Object value = context.get(key);
+            out.writeObject(entry.getKey());
+            final Object value = entry.getValue();
             if (value instanceof Serializable) {
                 // Step 3a.
                 out.writeObject(value);