yuz10 opened a new issue #3175:
URL: https://github.com/apache/rocketmq/issues/3175
**BUG REPORT**
1. Please describe the issue you observed:
- What did you do (The steps to reproduce)?
`mqadmin updateAclConfig -c RaftCluster -a aaaaaaaaaak `
and then restart broker
- What did you expect to see?
restart success
- What did you see instead?
broker start failed
```
java.lang.ClassCastException: java.lang.Class cannot be cast to
org.apache.rocketmq.acl.AccessValidator
at
org.apache.rocketmq.broker.BrokerController.initialAcl(BrokerController.java:516)
at
org.apache.rocketmq.broker.BrokerController.initialize(BrokerController.java:483)
at
org.apache.rocketmq.broker.BrokerStartup.createBrokerController(BrokerStartup.java:222)
at org.apache.rocketmq.broker.BrokerStartup.main(BrokerStartup.java:58)
```
2. Please tell us about your environment:
3. Other information (e.g. detailed explanation, logs, related issues,
suggestions how to fix, etc):
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