Symfony\Component\Security\Http\Firewall\AbstractAuthenticationListener::onFailure PHP Method

    private function onFailure(GetResponseEvent $event, Request $request, AuthenticationException $failed)
    {
        if (null !== $this->logger) {
            $this->logger->info(sprintf('Authentication request failed: %s', $failed->getMessage()));
        }

        $this->securityContext->setToken(null);

        if (null !== $this->failureHandler) {
            return $this->failureHandler->onAuthenticationFailure($request, $failed);
        }

        if (null === $this->options['failure_path']) {
            $this->options['failure_path'] = $this->options['login_path'];
        }

        if ($this->options['failure_forward']) {
            if (null !== $this->logger) {
                $this->logger->debug(sprintf('Forwarding to %s', $this->options['failure_path']));
            }

            $subRequest = $this->httpUtils->createRequest($request, $this->options['failure_path']);
            $subRequest->attributes->set(SecurityContextInterface::AUTHENTICATION_ERROR, $failed);

            return $event->getKernel()->handle($subRequest, HttpKernelInterface::SUB_REQUEST);
        }

        if (null !== $this->logger) {
            $this->logger->debug(sprintf('Redirecting to %s', $this->options['failure_path']));
        }

        $request->getSession()->set(SecurityContextInterface::AUTHENTICATION_ERROR, $failed);

        return $this->httpUtils->createRedirectResponse($request, $this->options['failure_path']);
    }