Optimize REGISTRIES field in AbstractRegistryFactory. (apache#2703)

* modify ConcurrentHashMap to HashMap.这里REGISTRIES在使用的时候都会先加锁，不存在多线程安全的问题。所以这里建议使用hashmap * modify ConcurrentHashMap to HashMap.这里REGISTRIES在使用的时候都会先加锁，不存在多线程安全的问题。所以这里建议使用hashmap
CrazyHZM · Dec 6, 2018 · 9d2a896 · 9d2a896
1 parent c131026
commit 9d2a896
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/...registry-api/src/main/java/org/apache/dubbo/registry/support/AbstractRegistryFactory.java b/...registry-api/src/main/java/org/apache/dubbo/registry/support/AbstractRegistryFactory.java
@@ -26,8 +26,8 @@
 
 import java.util.Collection;
 import java.util.Collections;
+import java.util.HashMap;
 import java.util.Map;
-import java.util.concurrent.ConcurrentHashMap;
 import java.util.concurrent.locks.ReentrantLock;
 
 /**
@@ -44,7 +44,7 @@ public abstract class AbstractRegistryFactory implements RegistryFactory {
     private static final ReentrantLock LOCK = new ReentrantLock();
 
     // Registry Collection Map<RegistryAddress, Registry>
-    private static final Map<String, Registry> REGISTRIES = new ConcurrentHashMap<String, Registry>();
+    private static final Map<String, Registry> REGISTRIES = new HashMap<>();
 
     /**
      * Get all registries