package com.wrox.tourism.actions;import org.apache.struts.action.ActionForm;import org.apache.struts.action.ActionForward;import org.apache.struts.action.Action;import org.apache.struts.action.ActionMapping;import org.apache.struts.action.ActionErrors;import org.apache.struts.action.ActionError;import org.apache.struts.action.ActionServlet;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;import javax.servlet.ServletException;import java.io.IOException;import java.sql.Connection;import java.sql.SQLException;import java.util.Collection;public class LogoffAction extends Action {  public ActionForward perform(ActionMapping mapping,ActionForm form,    HttpServletRequest request,HttpServletResponse response)      throws IOException,ServletException {    ActionErrors errors = new ActionErrors();    try {      request.getSession().invalidate();      return mapping.findForward("success");    } catch (Throwable e) {      e.printStackTrace();      ActionError error = new ActionError(e.getMessage());      errors.add(ActionErrors.GLOBAL_ERROR,error);    }    saveErrors(request,errors);    return new ActionForward(mapping.getInput());  }}