From d7304aa27fc9dd21b138759623bc060538bd8cf0 Mon Sep 17 00:00:00 2001
From: Albumen Kevin <jhq0812@gmail.com>
Date: Mon, 2 Sep 2024 18:36:05 +0800
Subject: [PATCH] Fix LRUCache.putIfAbsent concurrent issue

---
 .../java/org/apache/dubbo/common/utils/LRUCache.java   | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/dubbo-common/src/main/java/org/apache/dubbo/common/utils/LRUCache.java b/dubbo-common/src/main/java/org/apache/dubbo/common/utils/LRUCache.java
index 76d6c19cb71..28440ba854d 100644
--- a/dubbo-common/src/main/java/org/apache/dubbo/common/utils/LRUCache.java
+++ b/dubbo-common/src/main/java/org/apache/dubbo/common/utils/LRUCache.java
@@ -110,6 +110,16 @@ public void clear() {
         }
     }
 
+    @Override
+    public V putIfAbsent(K key, V value) {
+        lock.lock();
+        try {
+            return super.putIfAbsent(key, value);
+        } finally {
+            lock.unlock();
+        }
+    }
+
     public void lock() {
         lock.lock();
     }