Talend : Setup Logger Configuration on tomcat
1. Pick up the necessary jar from the FTP location for uploads defined in section 3.3
a) tomcat-juli.jar
b) tomcat-juli-adapters.jar
2. log4j-1.2.16.jar
3. log4j.properties
Section B (Configuration)
Make sure you are not using any log4j.jar files in your $CATALINA_BASE/webapps/your webapp/WEB-INF/lib until or unless you have a log4j.properties file configured in $CATALINA_BASE/webapps/your webapp/WEB-INF/classes