src/main/java/org/efaps/ui/wicket/connectionregistry/RegistryManager.java
public static void removeUserSession(final String _sessionId)
    {
        if (RegistryManager.getCache().containsKey(_sessionId)) {
            RegistryManager.registerLogout4History(
                            RegistryManager.getCache().get(_sessionId).getUserName(), _sessionId);
            RegistryManager.getCache().remove(_sessionId);
        }

    }
public static void removeUserSession(final String _sessionId)
    {
        if (RegistryManager.getCache().containsKey(_sessionId)) {
            RegistryManager.registerLogout4History(
                            RegistryManager.getCache().get(_sessionId).getUserName(), _sessionId);
            RegistryManager.getCache().remove(_sessionId);
        }

    }
Removes the user session.

@param _sessionId the session id