From d0606045e9a22673766dbe2f7fd964b1420d582a Mon Sep 17 00:00:00 2001
From: SummCoder <2404174187@qq.com>
Date: Sat, 13 Jun 2026 15:00:23 +0800
Subject: [PATCH] Fix outdated constructor signatures in trace documentation

The two-argument constructors DefaultMQProducer(String, boolean) and
DefaultMQPushConsumer(String, boolean) do not exist in 5.x.
Updated to use the three-argument form with null for the default
trace topic.

Fixes #10500
---
 docs/cn/msg_trace/user_guide.md | 4 ++--
 docs/en/msg_trace/user_guide.md | 4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/docs/cn/msg_trace/user_guide.md b/docs/cn/msg_trace/user_guide.md
index a04c2601f48..57fddbfa6d0 100644
--- a/docs/cn/msg_trace/user_guide.md
+++ b/docs/cn/msg_trace/user_guide.md
@@ -54,7 +54,7 @@ RocketMQ的消息轨迹特性支持两种存储轨迹数据的方式：
 
 ### 4.1 发送消息时开启消息轨迹
 ```java
-        DefaultMQProducer producer = new DefaultMQProducer("ProducerGroupName",true);
+        DefaultMQProducer producer = new DefaultMQProducer("ProducerGroupName",true,null);
         producer.setNamesrvAddr("XX.XX.XX.XX1");
         producer.start();
             try {
@@ -74,7 +74,7 @@ RocketMQ的消息轨迹特性支持两种存储轨迹数据的方式：
 
 ### 4.2 订阅消息时开启消息轨迹
 ```java
-        DefaultMQPushConsumer consumer = new DefaultMQPushConsumer("CID_JODIE_1",true);
+        DefaultMQPushConsumer consumer = new DefaultMQPushConsumer("CID_JODIE_1",true,null);
         consumer.subscribe("TopicTest", "*");
         consumer.setConsumeFromWhere(ConsumeFromWhere.CONSUME_FROM_FIRST_OFFSET);
         consumer.setConsumeTimestamp("20181109221800");
diff --git a/docs/en/msg_trace/user_guide.md b/docs/en/msg_trace/user_guide.md
index 64c4b2bb434..642775abc62 100644
--- a/docs/en/msg_trace/user_guide.md
+++ b/docs/en/msg_trace/user_guide.md
@@ -54,7 +54,7 @@ For business system adapting to use RocketMQ's message trace feature easily, in
 
 ### 4.1 Enable message trace when sending messages
 ```
-        DefaultMQProducer producer = new DefaultMQProducer("ProducerGroupName",true);
+        DefaultMQProducer producer = new DefaultMQProducer("ProducerGroupName",true,null);
         producer.setNamesrvAddr("XX.XX.XX.XX1");
         producer.start();
             try {
@@ -74,7 +74,7 @@ For business system adapting to use RocketMQ's message trace feature easily, in
 
 ### 4.2 Enable message trace when subscribe messages
 ```
-        DefaultMQPushConsumer consumer = new DefaultMQPushConsumer("CID_JODIE_1",true);
+        DefaultMQPushConsumer consumer = new DefaultMQPushConsumer("CID_JODIE_1",true,null);
         consumer.subscribe("TopicTest", "*");
         consumer.setConsumeFromWhere(ConsumeFromWhere.CONSUME_FROM_FIRST_OFFSET);
         consumer.setConsumeTimestamp("20181109221800");