I have developed a web application and have installed jboss 4.0.4 GA on my m/c. I am successfully able to deploy and run my web application on default server instance. But if I undeploy it, still I am able to run it. Also If I do some changes in jsp/servlet files, rebuild .war and redeploy it on server, sometimes change appears but sometimes it doesn't. I guess the web application is being cached. Please help me how to solve this problem.