Integrating facebook with java with Graph API does not ask for permission directly, it opens a facebook box, on clicking the dialog box it redirects to the permission

 Here is the simple code to redirect page directly yo the permission page:

String returnURL="http://apps.facebook.com/yourwebpage/";

externalUrl="https://graph.facebook.com/oauth/authorize?client_id="+app_id+"&redirect_uri="+returnURL+"&scope=email,read_stream";

 PrintWriter servletOutput = res.getWriter();

servletOutput.println(
                        "<script type="text/javascript">n" +
                        "<!--n" +
                        "window.top.location = "" + externalUrl + "";n" +
                        "//-->n" +
                        "</script>n" +
                        "<noscript>n" +
                        "Your browser doesn't seem to support Javascript redirection. n" +
                        "Please click <a href="/" + externalUrl + "">here</a> to run youwebpage directlyn" +
                        "</noscript>n");

Thats all, this code will automatically redirects page to the permission and then returns back to your application.