title: Not to Use Spring Security Authentication?
body: <p>Spring Security 3 reference says that:</p>
  
  <blockquote>
    <p>5.3 Authentication</p>
    
    <p>Spring Security can participate in many different authentication
    environments. While we recommend people use Spring Security for
    authentication and not integrate with existing Container Managed
    Authentication, it is nevertheless supported - as is integrating with
    your own proprietary authentication system.</p>
  </blockquote>
  
  <p>I couldn't understand what to do for security according to that text. Can anybody explain me?</p>
  
  <p><strong>LINK:</strong> <a href="http://static.springsource.org/spring-security/site/docs/3.0.x/reference/technical-overview.html#tech-intro-authentication" rel="nofollow">http://static.springsource.org/spring-security/site/docs/3.0.x/reference/technical-overview.html#tech-intro-authentication</a></p>