factory.java

public class AuthenticationFactory {
    public static Object result; # Change Object with appropriete type returned from AuthenticationManager
    
    public static void init() {
        # code for authentication and so on
       self.result = AuthenticationManager.method()
    }
    
    public static Object getResult() {
        return self.result;
    }
}

# Example
# App starts -> AuthenticationFactory.init()
# Random place in  App -> AuthenticationFactory.getResult().getUserName()