jetty-cdi/cdi-servlet/src/main/config/etc/jetty-cdi.xml

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

<!-- =============================================================== -->
<!-- Mixin the Weld / CDI classes to the class loader                -->
<!-- =============================================================== -->

<Configure id="Server" class="org.eclipse.jetty.server.Server">
  <Ref refid="DeploymentManager">
    <Call name="addLifeCycleBinding">
      <Arg>
        <New
          class="org.eclipse.jetty.cdi.servlet.WeldDeploymentBinding">
        </New>
      </Arg>
    </Call>
  </Ref>
</Configure>