jetty-distribution/src/main/resources/etc/jetty-setuid.xml

<?xml version="1.0"?>
<!DOCTYPE Configure PUBLIC "-//Mort Bay Consulting//DTD Configure//EN" "http://www.eclipse.org/jetty/configure_9_3.dtd">

<!-- ================================================================ -->
<!-- Configure the Jetty SetUIDListener                                -->
<!-- ================================================================ -->
<Configure id="Server" class="org.eclipse.jetty.server.Server">

  <Call name="addLifeCycleListener">
    <Arg>
      <New class="org.eclipse.jetty.setuid.SetUIDListener">
        <Set name="startServerAsPrivileged"><Property name="jetty.setuid.startServerAsPrivileged" deprecated="jetty.startServerAsPrivileged" default="false"/></Set>
        <Set name="umaskOctal"><Property name="jetty.setuid.umask" deprecated="jetty.umask" default="002"/></Set>
        <Set name="username"><Property name="jetty.setuid.userName" deprecated="jetty.username" default="jetty"/></Set>
        <Set name="groupname"><Property name="jetty.setuid.groupName" deprecated="jetty.groupname" default="jetty"/></Set>
        <!-- uncomment to change the limits on number of open file descriptors for root -->
        <!--
        <Call name="setRLimitNoFiles">
          <Arg>
            <New class="org.eclipse.jetty.setuid.RLimit">
              <Set name="soft">20000</Set>
              <Set name="hard">40000</Set>
            </New>
          </Arg>
        </Call>
        -->
      </New>
    </Arg>
  </Call>
</Configure>