EndPoem

1. 实测程序运行时，会检查指定的文件夹下是否有./conf/log4j.properties文件，如果没有会报错： ```sh java -cp .\wpaxos.sample.jar com.wuba.wpaxos.sample.echo.EchoClient . 127.0.0.1:30002 127.0.0.1:30000,127.0.0.1:30001,127.0.0.1:30002 1 0 Exception in thread "main" java.io.FileNotFoundException: .\conf\log4j.properties (系统找不到指定的文件。) at java.base/java.io.FileInputStream.open0(Native Method) at java.base/java.io.FileInputStream.open(FileInputStream.java:213) at java.base/java.io.FileInputStream.(FileInputStream.java:152) at java.base/java.io.FileInputStream.(FileInputStream.java:106) at com.wuba.wpaxos.sample.echo.EchoClient.main(EchoClient.java:39)...

✔The issue has been resolved, and can be closed. [ref link](https://github.com/apache/eventmesh-workflow/blob/main/third_party/lexer/rune_stack.go) 

✔This issue has been resolved, and can be closed. [Ref link](https://github.com/apache/eventmesh-go/blob/main/plugin/connector/standalone/consumer.go)