yuz10 opened a new issue #3887:
URL: https://github.com/apache/rocketmq/issues/3887
**BUG REPORT**
1. Please describe the issue you observed:
- What did you do (The steps to reproduce)?
1. call updateAccessConfig to update acl
2. the file watcher calls PlainPermissionManager::load(String aclFilePath)
3. and in load() function, the plainAccessResourceMap will not put new acl
because the condition
`this.accessKeyTable.get(plainAccessResource.getAccessKey()) `is not null
```
if
(this.accessKeyTable.get(plainAccessResource.getAccessKey()) == null) {
plainAccessResourceMap.put(plainAccessResource.getAccessKey(),
plainAccessResource);
this.accessKeyTable.put(plainAccessResource.getAccessKey(), aclFilePath);
}
```
- What did you expect to see?
- What did you see instead?
see the error:
```
java.lang.NullPointerException
at
org.apache.rocketmq.acl.plain.PlainPermissionManager.validate(PlainPermissionManager.java:646)
at
org.apache.rocketmq.acl.plain.PlainAccessValidator.validate(PlainAccessValidator.java:141)
at
org.apache.rocketmq.acl.plain.PlainAccessValidatorTest.testValidateAfterUpdateAccessConfig(PlainAccessValidatorTest.java:942)
```
4. Please tell us about your environment:
5. Other information (e.g. detailed explanation, logs, related issues,
suggestions how to fix, etc):
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