HttpSessionListener

[Required] Class:  org.zkoss.zk.ui.http.HttpSessionListener

ZK Session Cleaner is a listener used to clean up memory when a HTTP session is destroyed.

If you are using Servlet 2.3, please use org.zkoss.zk.ui.http.HttpSessionListener23 instead.

    <listener>
        <description>ZK listener for cleanup when a session is destroyed</description>
        <listener-class>org.zkoss.zk.ui.http.HttpSessionListener</listener-class>
    </listener>