[dubbo] branch master updated: fix potential ConcurrentModificationException (#6031)

[liujun]

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liujun pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/dubbo.git


The following commit(s) were added to refs/heads/master by this push:
     new dbda449  fix potential ConcurrentModificationException (#6031)
dbda449 is described below

commit dbda44995c86b2a8b91f342885af3a07fe36828a
Author: ken.lj <ken.lj...@gmail.com>
AuthorDate: Mon Apr 20 12:56:40 2020 +0800

    fix potential ConcurrentModificationException (#6031)
    
    fixes #6027
---
 .../org/apache/dubbo/registry/support/AbstractRegistryFactory.java     | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git 
a/dubbo-registry/dubbo-registry-api/src/main/java/org/apache/dubbo/registry/support/AbstractRegistryFactory.java
 
b/dubbo-registry/dubbo-registry-api/src/main/java/org/apache/dubbo/registry/support/AbstractRegistryFactory.java
index 413c68f..7ea5559 100644
--- 
a/dubbo-registry/dubbo-registry-api/src/main/java/org/apache/dubbo/registry/support/AbstractRegistryFactory.java
+++ 
b/dubbo-registry/dubbo-registry-api/src/main/java/org/apache/dubbo/registry/support/AbstractRegistryFactory.java
@@ -28,6 +28,7 @@ import org.apache.dubbo.registry.RegistryService;
 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) {