jetty-cdi/test-cdi-webapp/src/main/webapp/WEB-INF/web.xml

<?xml version="1.0"?>
<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee" 
   xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
   xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd" 
   version="3.1">
  <display-name>CDI Integration Test WebApp</display-name>
  
  <listener>
    <listener-class>org.jboss.weld.environment.servlet.Listener</listener-class>
  </listener>
  
  <resource-env-ref>
    <description>Object factory for the CDI Bean Manager</description>
    <resource-env-ref-name>BeanManager</resource-env-ref-name>
    <resource-env-ref-type>javax.enterprise.inject.spi.BeanManager</resource-env-ref-type>
  </resource-env-ref>
  
</web-app>