initialize the log4j system properly

Hi All
I've a database (PRJ) and I'm trying to connect from Asterisk server to that
database. In the shell script i used a log4j-1.2.11.jar with all others jar
files. 

The shell script for runagi.sh is :

#!/bin/sh 

JARS="curtin.jar:/lib/log4j-1.2.11.jar:/lib/jta.jar:/lib/antlr-2.7.6rc1.jar:/lib/ehcache-1.1.jar:/lib/cglib-2.1.3.jar:/lib/dom4j-1.6.1.jar:/lib/mail.jar:/lib/commons-lang-1.0.1.jar:/lib/mysql-connector-java-3.1.10-bin.jar:/lib/asm-attrs.jar:/lib/commons-logging-1.0.4.jar:/lib/commons-collections-2.1.1.jar:/lib/mailet_1_0.jar:/lib/asterisk-java-0.2.jar:/lib/jdom.jar:/lib/rome-0.7.jar:/lib/asm.jar:/lib/hibernate3.jar:/lib/activation.jar:/lib/c3p0-0.9.0.jar"

RUNCLASS="curtin.control.VAEAGIServer"

export VAECONFIG="/vad/VAE.conf"

echo "Script: Removing old log files"

rm -f ./logs/VAEServer.log
rm -f ./logs/ChannelSessionManager.log
rm -f ./logs/ThreadManager.log

echo "Script: Deleting old dynamic audio files"
rm -f /var/lib/asterisk/sounds/TMP*.gsm

java -cp $JARS $RUNCLASS NOWAVE

when i run the above shell script (./runagi.sh). It shows me the following
warnings........