gistfile1.php

<?php

    /**
     * @see Symfony\Component\Security\Core\Encoder\EncoderFactory::getEncoder()
     */
    public function getEncoder(SecurityUserInterface $user)
    {
        if (!$user instanceof UserInterface) {
            return $this->genericFactory->getEncoder($user);
        }

        if (isset($this->encoders[$algorithm = $user->getAlgorithm()])) {
            return $this->encoders[$algorithm];
        }

        return $this->encoders[$algorithm] = $this->createEncoder($algorithm);
    }

    /**
     * @see Symfony\Component\Security\Core\Encoder\EncoderFactory::getEncoder()
     */
    public function getEncoder(SecurityUserInterface $user)
    {
        try {
            return $this->genericFactory->getEncoder($user);
        } catch (\RuntimeException $e) {
            if (isset($this->encoders[$algorithm = $user->getAlgorithm()])) {
                return $this->encoders[$algorithm];
            }

            return $this->encoders[$algorithm] = $this->createEncoder($algorithm);
        }
    }