close connection error

- [ ] I have searched the [issues](https://github.com/seata/seata/issues) of this repository and believe that this is not a duplicate.

### Ⅰ. Issue Description


### Ⅱ. Describe what happened

If there is an exception, please attach the exception trace:

```
Just paste your stack trace here!
```

### Ⅲ. Describe what you expected to happen

### Ⅳ. How to reproduce it (as minimally and precisely as possible)

1. xxx
2. xxx
3. xxx

### Ⅴ. Anything else we need to know?

### Ⅵ. Environment:

- JDK version :
- OS :
- Others:

The issue names a connection-close error but provides no stack trace, reproduction steps, expected behavior, environment details, files, or tests. First obtain the missing error report and reproduction information, then identify the relevant Seata connection-handling entry point; the issue is done only when the cause and a reproducible fix are confirmed.

Written by the indexing model from the issue text.