dragon-zhang opened a new issue, #3777:
URL: https://github.com/apache/shenyu/issues/3777
### Question
Writing to log file is better than writing to console, I plan to add the
following to `shenyu_checkstyle.xml`:
```xml
<module name="RegexpSingleline">
<property name="format" value="\.printStackTrace"/>
<property name="message" value="Prohibit invoking .printStackTrace
in source code ! Please use org.slf4j.Logger instead."/>
</module>
```
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