java urlconnection get the final redirected URL
<p>I have a url which redirects to another url.I want to be able to get the final redirected URL.My code:</p>

<pre><code>    public class testURLConnection
    {
    public static void main(String[] args) throws MalformedURLException, IOException {

    HttpURLConnection con =(HttpURLConnection) new URL( "http://tinyurl.com/KindleWireless" ).openConnection();

    System.out.println( "orignal url: " + con.getURL() );
    con.connect();

System.out.println( "connected url: " + con.getURL() );
InputStream is = con.getInputStream();
System.out.println( "redirected url: " + con.getURL() );
is.close();
</code></pre>

<p>}
}</p>

<p>It always gives original url whereas the redirectURL is:<a href="http://rads.stackoverflow.com/amzn/click/B003FSUDM4" rel="nofollow">http://www.amazon.com/Kindle-Wireless-Reading-Display-Globally/dp/B003FSUDM4/ref=amb_link_353259562_2?pf_rd_m=ATVPDKIKX0DER&amp;pf_rd_s=center-10&amp;pf_rd_r=11EYKTN682A79T370AM3&amp;pf_rd_t=201&amp;pf_rd_p=1270985982&amp;pf_rd_i=B002Y27P3M</a>.</p>

<p>How can i get this final redirected URL.</p>

<p>Here is what i tried with looping till we get redirects.Still doesent fetch the desired url:</p>

<pre><code>    public static String fetchRedirectURL(String url) throws IOException
    {
HttpURLConnection con =(HttpURLConnection) new URL( url ).openConnection();
//System.out.println( "orignal url: " + con.getURL() );
con.setInstanceFollowRedirects(false);
con.connect();


InputStream is = con.getInputStream();
if(con.getResponseCode()==301)
    return con.getHeaderField("Location");
else return null;
    }
    public static void main(String[] args) throws MalformedURLException, IOException {
String url="http://tinyurl.com/KindleWireless";
String fetchedUrl=fetchRedirectURL(url);
System.out.println("FetchedURL is:"+fetchedUrl);
while(fetchedUrl!=null)
{   url=fetchedUrl;
System.out.println("The url is:"+url);
    fetchedUrl=fetchRedirectURL(url);


}
System.out.println(url);

    }
</code></pre>
