Here's a minimalist log4j.properties file you can use if you're getting a message that says, "log4j:WARN No appenders could be found for logger"

#If you want to see what Log4J is doing:
#log4j.debug=true

log4j.rootCategory=INFO,console

log4j.appender.console=org.apache.log4j.ConsoleAppender
log4j.appender.console.layout=org.apache.log4j.PatternLayout
log4j.appender.console.layout.ConversionPattern=%5p (%F:%L) - %m%n