How to shutdown com.sun.net.httpserver.HttpServer?

Question

The Http Server embedded in JDK 6 is a big help developing web services, but I\'ve got situation where I published an Endpoint and then the code crashed and left the server runn

Answer 1

I've never used this server before and I can't find any good documentation. Perhaps these less elegant solutions have occurred to you already, but I just thought I would mention them.

Seems like com.sun.net.httpserver.HttpServer has an implementation class called HttpServerImpl. It has a method called stop().

Or perhaps you can find the Thread listening on the server socket and call interrupt().

Sean

Answer 2

I use the below code to start it

    this.httpServer = HttpServer.create(addr, 0);
    HttpContext context = this.httpServer.createContext("/", new DocumentProcessHandler());
    this.httpThreadPool = Executors.newFixedThreadPool(this.noOfThreads);
    this.httpServer.setExecutor(this.httpThreadPool);
    this.httpServer.start();

and below code to stop it

        this.httpServer.stop(1);
        this.httpThreadPool.shutdownNow();

Answer 3

How about not loosing the reference, then? When you say your code crashes, I assume you get an exception somewhere. Where exactly? So someone capable of intercepting this exception obviously needs to also have a reference to the HttpServer, which you might have to pass around yourself.

Edit: Oh. In that case if you don't want to kill the entire JVM with the HttpServer in it, then you will need to offer some form of IPC to the environment, e.g. a command channel via RMI that can be invoked from a Java program (and hence Ant).

Another solution would be to have the server listen for some "secret" cookie query, where you e.g. print/save the cookie on startup so that the Ant script can retrieve the cookie, and you can fire off a query to your "secret" URL upon which the server will exit itself gracefully.

I'd go with a quick RMI solution.

Answer 4

netstat -a

to find the pid of the process that has the port open (assuming you know the port), and

kill -9 $pid

to kill the process.