From c8d0b35e1a7fa525757f1062926e9e013d8d1fd4 Mon Sep 17 00:00:00 2001
From: Henrique Prange <hprange@gmail.com>
Date: Wed, 19 Jan 2022 21:15:09 -0300
Subject: [PATCH] Optimize the ERXProperties cache

Replaces the synchronized map (which synchronizes on reads and writes) with a `ConcurrentHashMap` that synchronizes write operations only.
---
 .../Sources/er/extensions/foundation/ERXProperties.java        | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/Frameworks/Core/ERExtensions/Sources/er/extensions/foundation/ERXProperties.java b/Frameworks/Core/ERExtensions/Sources/er/extensions/foundation/ERXProperties.java
index de5d9534fab..3ac15b1069e 100644
--- a/Frameworks/Core/ERExtensions/Sources/er/extensions/foundation/ERXProperties.java
+++ b/Frameworks/Core/ERExtensions/Sources/er/extensions/foundation/ERXProperties.java
@@ -22,6 +22,7 @@
 import java.util.Stack;
 import java.util.TreeMap;
 import java.util.TreeSet;
+import java.util.concurrent.ConcurrentHashMap;
 
 import javax.xml.parsers.DocumentBuilder;
 import javax.xml.parsers.DocumentBuilderFactory;
@@ -110,7 +111,7 @@ public class ERXProperties extends Properties implements NSKeyValueCoding {
     * 
     * <div class="ja">タイプ変換されている値を内部でキャシュし、何回も同じ変換をする必要なくなります</div>
     */
-    private static Map<String, Object> _cache = Collections.synchronizedMap(new HashMap<>());
+    private static Map<String, Object> _cache = new ConcurrentHashMap<>();
 
     
     /**