/* */package com.sun.j2ee.workflow.control.actions;import java.util.HashMap;import java.util.ArrayList;import java.util.Enumeration;import java.util.Locale;import javax.servlet.http.HttpSession;import com.sun.j2ee.workflow.control.exceptions.WorkflowActionException;import javax.servlet.http.HttpServletRequest;import com.sun.j2ee.workflow.util.Debug;import com.sun.j2ee.workflow.util.WebKeys;import com.sun.j2ee.workflow.util.JSPUtil;/** * @author Jian (James) Cai */public class SignoutHandler extends ActionHandlerSupport {    public void perform(HashMap signoutevent) throws WorkflowActionException{        Debug.println("SignoutHandler: perform");        HttpSession session = (HttpSession)signoutevent.get("session");                session.invalidate();           }    public void doEnd(HttpServletRequest request) {    }}