Log4j
Posted by Pontus Ullgren on Friday, 9 January 2009== Introduction ==
[http://logging.apache.org/log4j/docs/ Log4J] is a logging framework developed as part of the Jakarta project and distributed under the Apache Sowtware Licens. The Log4J framework gives you a fully configurable logging environment for your applications. It can easily be configured through code in your program or using configuration files.
The basic architecture of Log4J consists of 3 main components: