title: Step by step Google SSO (java)?
body: <p>I am lost in all my open browser tabs for Google single sign on :)</p>
  
  <p>I already have an application which I would like to put on Google market place. And mandatory integration is Google SSO. I have built application on Struts2 with Spring. </p>
  
  <p>So now I need some instructions how to make this integration. An example would be perfect. Or how to start, which technology to use, best approaches, anything similar... </p>
  
  <p>Also, <strong>do I have to</strong> use Google App Engine for SSO integration or no? Honestly, I am confused :)</p>
  
  <p><strong>EDIT</strong></p>
  
  <p>I started here: <a href="http://developers.google.com/google-apps/marketplace/sso">developers.google.com/google-apps/marketplace/sso</a> Because I use Java, if you look at Getting started at the bottom, I wanted to use step2, but the link is dead. From there on I got stuck...</p>
  
  <p>Links <a href="https://developers.google.com/google-apps/help/open-source#sso">here</a> are also dead.</p>