File list (Check if you may need any files):
log4j-ext-level
...............\src
...............\...\main
...............\...\....\java
...............\...\....\....\com
...............\...\....\....\...\prj
...............\...\....\....\...\...\log4j
...............\...\....\....\...\...\.....\XLevel.java
...............\...\....\....\...\...\.....\XLogger.java
...............\...\....\....\...\...\.....\XLoggerFactory.java
...............\...\....\resources
...............\...\....\.........\log4j.properties