liuxugithub opened a new issue, #7533: URL: https://github.com/apache/rocketmq/issues/7533
### 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 centos7 ### RocketMQ version 5.1.3 ### JDK Version 1.8 ### Describe the Bug 获取broker中的acl文件版本号抛空指针异常， 响应头里解析的版本字段为空  ### Steps to Reproduce java.lang.NullPointerException at org.apache.rocketmq.client.impl.MQClientAPIImpl.getBrokerClusterAclInfo(MQClientAPIImpl.java:498) at org.apache.rocketmq.tools.admin.DefaultMQAdminExtImpl.examineBrokerClusterAclVersionInfo(DefaultMQAdminExtImpl.java:303) at org.apache.rocketmq.tools.admin.DefaultMQAdminExt.examineBrokerClusterAclVersionInfo(DefaultMQAdminExt.java:222) ### What Did You Expect to See? 预期得到acl的版本号，同步更新集群的acl文件 ### What Did You See Instead? 异常，调整需要重写，很麻烦 ### 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: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
