jetty-websocket/websocket-server/src/test/resources/wsuf-alt-config-via-listener.xml

<?xml version="1.0" encoding="UTF-8"?>
<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">

  <listener>
    <listener-class>org.eclipse.jetty.websocket.server.InfoContextAltAttributeListener</listener-class>
  </listener>

  <filter>
    <filter-name>wsuf-alt</filter-name>
    <filter-class>org.eclipse.jetty.websocket.server.WebSocketUpgradeFilter</filter-class>
    <init-param>
      <param-name>configAttributeKey</param-name>
      <param-value>alt.config</param-value>
    </init-param>
  </filter>

  <filter-mapping>
    <filter-name>wsuf-alt</filter-name>
    <url-pattern>/info/*</url-pattern>
  </filter-mapping>
</web-app>