Whenever I ran my webdriver script in eclipse, using java, I got following warning:
log4j:WARN No appenders could be found for logger (org.apache.http.impl.conn.tsccm.ThreadSafeClientConnManager).
log4j:WARN Please initialize the log4j system properly.
When I looked into Referenced Libraries I saw a 'log4j-1.2.14.jar'. This must have come along with default selenium download. What's its use??