Log4j sandbox is a collection of useful code and classes that extend or support the use of log4j. Many of the classes are ready for immediate use in your log4j environment. Some are considered "experimental" and should be used with that knowledge in mind. And others serve as useful examples or "springboards" for adding features to your own code. These classes are maintained and packaged separate from the core log4j release, but as classes "prove" themselves worthy and evolve, they may be moved into the core log4j release. If you have any suggestions, improvements, patches, or new submissions you would like to contribute to the log4j-sandbox, please post a message to the log4j-dev@apache.org email list. Please see the HOWTOBUILD.txt file for information about how to compile and build the log4j-sandbox project. Enjoy!