How would I go about running a server application in Java.

Let's say I have a server application that listens to incoming connections via sockets to the application. I want this program to be able to be started and stopped remotely. What are the technologies I need to do this with. I was reading on JSP but I don't really need to generate HTML I don't think, as it will just be a black box sort of thing that clients will connect to and be provided services.

Do you want to daemonize a Java application? The Jakarta Commons contain a library to help with this: Commons Daemon.

sounds scary, but it seems to be what I'm looking for. What I'm really asking is how can a client application remotely start a java executable .jar file. Let's say I have an administration program that shuts down the server/application, and subsequently the program shuts down all sockets and waits for all service threads to finish, and then finally exit. How would I do the opposite and have the administrator start the jar file. Where would that request go?

Edit: NM, last paragraph -_-

I would post on the javaranch but they don't allow usernames like normal forums so I made one "real-sounding" name and forgot and don't have access to my e-mail to find it out