#LogFactory implement org.apache.commons.logging.LogFactory=org.apache.commons.logging.impl.LogFactoryImpl # SimpleLog #org.apache.commons.logging.Log = org.apache.commons.logging.impl.SimpleLog # JDK 1.4 logger #org.apache.commons.logging.Log=org.apache.commons.logging.impl.Jdk14Logger # Avalon Toolkit #org.apache.commons.logging.Log=org.apache.commons.logging.impl.LogKitLogger #Log4j org.apache.commons.logging.Log=org.apache.commons.logging.impl.Log4JLogger