fix potential ConcurrentModificationException (apache#6031)

fixes apache#6027
bouxin · Apr 20, 2020 · dbda449 · dbda449
1 parent 00cdc53
commit dbda449
Showing 1 changed file with 2 additions and 1 deletion.
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
@@ -28,6 +28,7 @@
 import java.util.Collection;
 import java.util.Collections;
 import java.util.HashMap;
+import java.util.LinkedList;
 import java.util.List;
 import java.util.Map;
 import java.util.concurrent.atomic.AtomicBoolean;
@@ -61,7 +62,7 @@ public abstract class AbstractRegistryFactory implements RegistryFactory {
      * @return all registries
      */
     public static Collection<Registry> getRegistries() {
-        return Collections.unmodifiableCollection(REGISTRIES.values());
+        return Collections.unmodifiableCollection(new LinkedList<>(REGISTRIES.values()));
     }
 
     public static Registry getRegistry(String key) {