OAuth problem to get PIN



I followed the exemple : http://twitter4j.org/en/code-examples.html ( 7. OAuth support), I set my OAuth Consumer.
But, when I follow the URL to get the PIN, I accept and i’m redirect to “Social Login” with OAuth Token and OAuth Verifier in URL but no PIN and when I press enter in my application, he throws an error 401.

Here’s the web site : http://image.noelshack.com/fichiers/2014/04/1390327075-sans-titre-1.jpg

How can I get the PIN ?

Thanks for your help,