some sockets are not being closed

[Doua Beri]

hi everyone. So I have the following code:

 			URL url = new URL("http://www.somesite.com");
			URLConnection conn = url.openConnection(new Proxy(Proxy.Type.SOCKS,new InetSocketAddress(host,port)));
			conn.setConnectTimeout(10000);
			conn.setReadTimeout(10000); 

//read the content

So it connects through a SOCKS proxy and save the content of an website to a file. Works great but with some proxies the application blocks. I tried everything.
If I choose to terminate the thread it simply takes areound 5-6 minutes sometimes even 15 min+ for the thread to be terminated.

I think it's an OS problem. no so sure. I use Windows Vista. I run the app on another windows vista and the same result. I switch to win XP and still the same result. I never tested on linux because my app need to run on windows systems (XP or higher).

Did you faced similar problems where the socked will just not want to close ? Also if you know what I should do I will much appreciate.

Thank you

[Mark Uppeteer]

what is the exact line of code that blocks ? did you run through it with the debugger ?