RE: off-topic question - servlet notification

[Stefan Langer]

THe only way I know of is to make the servlet poll the client at regular interval to 
see if it is still alive!
Create a thread that keeps a live connection to the application client in your servlet 
and let it poll your client at regular intervalls. When you don't get a reply you know 
the client is down. 
Keep in mind that this will have a seriouse impact on your ressources when you have a 
lot of connections. 
Or you can just have one thread running that polls all clients.

Hope that helps

Stefan