log4j problems

If you are having trouble working out which log4j.properties file is being used then use this:

-Dlog4j.debug

for more info click here

Please remember that log4j will load in the properties files in CLASSPATH order.

To force your code to use a specific log file use this:

-Dlog4j.configuration=file:C:\temp\log4j.xml
or
-Dlog4j.properties=file:C:\temp\log4j.properties

Sample log4j.properties files:
click here

If you want to change what is written to the logs [dates / classname etc]:
http://logging.apache.org/log4j/1.2/apidocs/org/apache/log4j/PatternLayout.html

sample log4j.xml file:
http://www.google.com/codesearch/p?hl=en#3hqpXVqVs-0/trunk/restlet/log4j.xml&q=log4j%20lang:xml&sa=N&cd=6&ct=rc