From 5ed203ab0d7db6a0696797250ef2262490f84c52 Mon Sep 17 00:00:00 2001
From: Jon Marius Venstad <venstad@gmail.com>
Date: Fri, 13 Nov 2020 14:31:40 +0100
Subject: Use thread safe arrays too

---
 jdisc_core/src/main/java/com/yahoo/jdisc/HeaderFields.java | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

(limited to 'jdisc_core')

diff --git a/jdisc_core/src/main/java/com/yahoo/jdisc/HeaderFields.java b/jdisc_core/src/main/java/com/yahoo/jdisc/HeaderFields.java
index 2f7cd59c737..fd6b22ade12 100644
--- a/jdisc_core/src/main/java/com/yahoo/jdisc/HeaderFields.java
+++ b/jdisc_core/src/main/java/com/yahoo/jdisc/HeaderFields.java
@@ -9,6 +9,7 @@ import java.util.List;
 import java.util.Map;
 import java.util.Set;
 import java.util.concurrent.ConcurrentSkipListMap;
+import java.util.concurrent.CopyOnWriteArrayList;
 
 /**
  * This is an encapsulation of the header fields that belong to either a {@link Request} or a {@link Response}. It is
@@ -140,14 +141,13 @@ public class HeaderFields implements Map<String, List<String>> {
      *         <code>key</code>.
      */
     public List<String> put(String key, String value) {
-        ArrayList<String> list = new ArrayList<String>(1);
-        list.add(value);
+        List<String> list = new CopyOnWriteArrayList<>(List.of(value));
         return content.put(key, list);
     }
 
     @Override
     public List<String> put(String key, List<String> value) {
-        return content.put(key, new ArrayList<>(value));
+        return content.put(key, new CopyOnWriteArrayList<>(value));
     }
 
     @Override
-- 
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