mxsm opened a new issue, #8426: URL: https://github.com/apache/rocketmq/issues/8426
### Before Creating the Bug Report - [X] I found a bug, not just asking a question, which should be created in [GitHub Discussions](https://github.com/apache/rocketmq/discussions). - [X] I have searched the [GitHub Issues](https://github.com/apache/rocketmq/issues) and [GitHub Discussions](https://github.com/apache/rocketmq/discussions) of this repository and believe that this is not a duplicate. - [X] I have confirmed that this bug belongs to the current repository, not other repositories of RocketMQ. ### Runtime platform environment windows ### RocketMQ version master ### JDK Version jdk8 ### Describe the Bug ![image](https://github.com/user-attachments/assets/1f184cda-466b-4343-9a27-02800d430b95) ![image](https://github.com/user-attachments/assets/d32f6861-b0f2-46e1-8f89-91886224536d) ### Steps to Reproduce use asyncSendEnable false ### What Did You Expect to See? send once ### What Did You See Instead? send twice ### Additional Context _No response_ -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: commits-unsubscr...@rocketmq.apache.org.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org