jetty-logback/src/main/config/etc/jetty-logback.xml

<?xml version="1.0"?>
<!DOCTYPE Configure PUBLIC "-//Jetty//Configure//EN" "http://www.eclipse.org/jetty/configure.dtd">


<!-- =============================================================== -->
<!-- Configure logback logging under Jetty                           -->
<!-- =============================================================== -->
<Configure id="Server" class="org.eclipse.jetty.server.Server">

    <!-- =========================================================== -->
    <!-- Use LogBack for Request Logging                             -->
    <!-- =========================================================== -->

    <Ref id="requestLog">
      <Set name="requestLog">
        <New id="requestLogImpl"
             class="ch.qos.logback.access.jetty.RequestLogImpl" />
      </Set>
    </Ref>

    <!-- =========================================================== -->
    <!-- Enable java.util.logging routing to slf4j                   -->
    <!-- =========================================================== -->
    <Call class="org.slf4j.bridge.SLF4JBridgeHandler" name="install" />

</Configure>