jsf 2 - Session scoped bean multiple constructor calls -

jsf 2 - Session scoped bean multiple constructor calls -

i have session scoped bean (i have checked imports , right managedbean). there main page checks if user has been authenticated calling 1 of methods of session bean. upon first view see session bean correctly constructed. if effort login, see right method called , login succeeds. however, when user redirected main page constructor of session bean called again. ideas?

jsf-2 constructor session-bean