log4j:WARN No appenders could be found for logger / Please initialize the log4j system properly while executing tests through Selenium in Eclipse

Question

log4j:WARN No appenders could be found for logger (org.apache.http.client.protocol.RequestAddCookies).
log4j:WARN Please initialize the log4j system properly.
log4j:WARN See http://logging.apache.org/log4j/1.2/faq.html#noconfig for more info.

Answer 1

This log messages...

log4j:WARN No appenders could be found for logger (org.apache.http.client.protocol.RequestAddCookies). 
log4j:WARN Please initialize the log4j system properly. 
log4j:WARN See http://logging.apache.org/log4j/1.2/faq.html#noconfig for more info.

...implies that the following:

• log4j JARs were downloaded and added to the Java Build Path of this project.
• log4j.properties file was created.
• Both of the above items was used by a program/script with in the same Project Space .

Reason

As in your current Java program/file you havn't initialized/handled the log4j configuration properly hence you see those WARNINGS .

Conclusion

These WARN messages are harmless and doesn't impact your tests and you can live with it.