Hi
The Servlet Specification says..
log(String)
public void log(java.lang.String msg)
Writes the specified message to a servlet log file, usually an event log. The
name and type of the servlet log file is specific to the servlet container.
So its implementation specific. I guess it will be along with the same directory where servlet is residing. i.e WEB-INF/classes directory.
Let me know if I am wrong.