Configuring Jetty Logging using log4j.properties

        Step 1:    Put your log4j.properties on $jetty.home/resources

        Step 2:    The logging jars should be made available on jetty's classpath.  Refer below:
 

Via log4j:

        On your $jetty.home/lib/ext, add the ff jars:

• slf4j-api-1.3.1.jar
• log4j-1.2.14.jar
• slf4j-log4j12-1.3.1.jar

via commons-logging:

        On your $jetty.home/lib/ext, add the ff jars:

• slf4j-api-1.3.1.jar
• commons-logging-1.1.jar
• slf4j-jcl-1.3.1.jar
• log4j-1.2.14.jar