PengJingzhao opened a new issue, #15295: URL: https://github.com/apache/dubbo/issues/15295
### Pre-check - [x] I am sure that all the content I provide is in English. ### Search before asking - [x] I had searched in the [issues](https://github.com/apache/dubbo/issues?q=is%3Aissue) and found no similar issues. ### Apache Dubbo Component Java SDK (apache/dubbo) ### Dubbo Version Dubbo Java 3.3 ### Steps to reproduce this issue While researching Dubbo's EventBus mechanism today, I discovered some hidden bugs in the code. Therefore, I am proposing fixes as follows: - No null-check for the event object itself, which may lead to a NullPointerException  - No type validation using instanceof before performing type casting.  - tryInvoke is a public method and is called frequently, but it lacks a null-check for the runnable object.  ### What you expected to happen Improve null-check operations and type validation. Of course, I am happy to submit a PR to complete this work. ### Anything else _No response_ ### Are you willing to submit a pull request to fix on your own? - [x] Yes I am willing to submit a pull request on my own! ### Code of Conduct - [x] I agree to follow this project's [Code of Conduct](https://www.apache.org/foundation/policies/conduct) -- 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] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
