import java.lang.reflect.Field;
import java.net.HttpURLConnection;
import java.net.Socket;

public class NetUtils
{

    public NetUtils()
    {
    }

    public static boolean setSocketTimeout(HttpURLConnection conn, int millis)
    {
        if(!initialized && !initialize())
            return false;
        try
        {
            Object httpClient = httpClientField.get(conn);
            Socket serverSocket = (Socket)serverSocketField.get(httpClient);
            serverSocket.setSoTimeout(millis);
            return true;
        }
        catch(Exception e)
        {
            return false;
        }
    }

    private static boolean initialize()
    {
        try
        {
            Class c = sun.net.www.protocol.http.HttpURLConnection.class;
            httpClientField = c.getDeclaredField("http");
            httpClientField.setAccessible(true);
            c = sun.net.NetworkClient.class;
            serverSocketField = c.getDeclaredField("serverSocket");
            serverSocketField.setAccessible(true);
            initialized = true;
            return true;
        }
        catch(Exception e)
        {
            return false;
        }
    }

    private static volatile boolean initialized;
    private static Field httpClientField;
    private static Field serverSocketField;
}