URLConnection.setConnectTimeout() does not work when DNS is unreachable

Question

Here is my code :

URL u = new URL(\"http://www.google.com\");
        URLConnection conn = u.openConnection();
        conn.setConnectTimeout(3000);
        conn         


        

Answer 1

Some non-standard implmentation of this method may ignore the specified timeout. See this setConnectTimeout

Answer 2

I found a post that can work around it. Use another thread to query DNS to simulate timeout: http://thushw.blogspot.sg/2009/11/resolving-domain-names-quickly-with.html