src/config/etc/jetty-stats.xml

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

<!-- =============================================================== -->
<!-- Mixin the Statistics Handler                                    -->
<!-- =============================================================== -->


<Configure id="Server" class="org.eclipse.jetty.server.Server">

    <Get id="oldhandler" name="handler"/>

    <Set name="handler">
     <New id="StatsHandler" class="org.eclipse.jetty.server.handler.StatisticsHandler">
      <Set name="handler"><Ref id="oldhandler"/></Set>
     </New>
    </Set>
    
</Configure>