Tip: Single Session Control - Spring Security

If anyone wants to apply Single Session Control to logged in user do the following steps.

1) in web.xml add a listner.

   1:  <listener>

   2:      <listener-class>org.springframework.security.ui.session.HttpSessionEventPublisher</listener-class>    

   3:  </listener>

2)In Spring security configuration

   1:  <http>

   2:      ...

   3:      <concurrent-session-control max-sessions="1" exception-if-maximum-exceeded="true"/>

   4:  </http>