From 86e77336aab687c767cf5c0e92c0e12c43263347 Mon Sep 17 00:00:00 2001
From: chickenlj <ken.lj.hz@gmail.com>
Date: Fri, 10 Jun 2022 15:36:40 +0800
Subject: [PATCH] fix #10078 potential ConcurrentModificationException on async
 scenarios.

---
 .../org/apache/dubbo/rpc/RpcInvocation.java     | 17 +++++++++--------
 1 file changed, 9 insertions(+), 8 deletions(-)

diff --git a/dubbo-rpc/dubbo-rpc-api/src/main/java/org/apache/dubbo/rpc/RpcInvocation.java b/dubbo-rpc/dubbo-rpc-api/src/main/java/org/apache/dubbo/rpc/RpcInvocation.java
index c31c0a80b68..ed9d1eecfd5 100644
--- a/dubbo-rpc/dubbo-rpc-api/src/main/java/org/apache/dubbo/rpc/RpcInvocation.java
+++ b/dubbo-rpc/dubbo-rpc-api/src/main/java/org/apache/dubbo/rpc/RpcInvocation.java
@@ -34,6 +34,7 @@
 import java.util.HashMap;
 import java.util.Locale;
 import java.util.Map;
+import java.util.concurrent.ConcurrentHashMap;
 import java.util.concurrent.atomic.AtomicReference;
 import java.util.stream.Stream;
 
@@ -112,7 +113,7 @@ public RpcInvocation(Invocation invocation) {
     public RpcInvocation(Invocation invocation, Invoker<?> invoker) {
         this(invocation.getTargetServiceUniqueName(), invocation.getServiceModel(), invocation.getMethodName(), invocation.getServiceName(),
             invocation.getProtocolServiceKey(), invocation.getParameterTypes(), invocation.getArguments(),
-            new HashMap<>(invocation.getObjectAttachments()), invocation.getInvoker(), invocation.getAttributes(),
+            new ConcurrentHashMap<>(invocation.getObjectAttachments()), invocation.getInvoker(), invocation.getAttributes(),
             invocation instanceof RpcInvocation ? ((RpcInvocation) invocation).getInvokeMode() : null);
         if (invoker != null) {
             URL url = invoker.getUrl();
@@ -240,7 +241,7 @@ public RpcInvocation(String targetServiceUniqueName, ServiceModel serviceModel,
         this.protocolServiceKey = protocolServiceKey;
         this.parameterTypes = parameterTypes == null ? new Class<?>[0] : parameterTypes;
         this.arguments = arguments == null ? new Object[0] : arguments;
-        this.attachments = attachments == null ? new HashMap<>() : attachments;
+        this.attachments = attachments == null ? new ConcurrentHashMap<>() : attachments;
         this.attributes = attributes == null ? Collections.synchronizedMap(new HashMap<>()) : attributes;
         this.invoker = invoker;
         initParameterDesc();
@@ -381,7 +382,7 @@ public Map<String, Object> getObjectAttachments() {
     }
 
     public void setObjectAttachments(Map<String, Object> attachments) {
-        this.attachments = attachments == null ? new HashMap<>() : attachments;
+        this.attachments = attachments == null ? new ConcurrentHashMap<>() : attachments;
     }
 
     @Override
@@ -397,7 +398,7 @@ public Map<String, String> getAttachments() {
 
     @Deprecated
     public void setAttachments(Map<String, String> attachments) {
-        this.attachments = attachments == null ? new HashMap<>() : new HashMap<>(attachments);
+        this.attachments = attachments == null ? new ConcurrentHashMap<>() : new ConcurrentHashMap<>(attachments);
     }
 
     @Override
@@ -408,7 +409,7 @@ public void setAttachment(String key, Object value) {
     @Override
     public void setObjectAttachment(String key, Object value) {
         if (attachments == null) {
-            attachments = new HashMap<>();
+            attachments = new ConcurrentHashMap<>();
         }
         attachments.put(key, value);
     }
@@ -426,7 +427,7 @@ public void setAttachmentIfAbsent(String key, Object value) {
     @Override
     public void setObjectAttachmentIfAbsent(String key, Object value) {
         if (attachments == null) {
-            attachments = new HashMap<>();
+            attachments = new ConcurrentHashMap<>();
         }
         if (!attachments.containsKey(key)) {
             attachments.put(key, value);
@@ -439,7 +440,7 @@ public void addAttachments(Map<String, String> attachments) {
             return;
         }
         if (this.attachments == null) {
-            this.attachments = new HashMap<>();
+            this.attachments = new ConcurrentHashMap<>();
         }
         this.attachments.putAll(attachments);
     }
@@ -449,7 +450,7 @@ public void addObjectAttachments(Map<String, Object> attachments) {
             return;
         }
         if (this.attachments == null) {
-            this.attachments = new HashMap<>();
+            this.attachments = new ConcurrentHashMap<>();
         }
         this.attachments.putAll(attachments);
     }