ClassDiscovery::safeClassExists broken

[XWB]

Version 1.7.2

It seems #154 broke something, because I now got the following error:

No PSR-17 response factory found. Install a package from this list: https://packagist.org/providers/psr/http-factory-implementation

Could not find resource using any discovery strategy. Find more information at http://docs.php-http.org/en/latest/discovery.html#common-errors - Puli Factory is not available - No valid candidate found using strategy "Http\Discovery\Strategy\CommonClassesStrategy". We tested the following candidates: . - No valid candidate found using strategy "Http\Discovery\Strategy\CommonPsr17ClassesStrategy". We tested the following candidates: Nyholm\Psr7\Factory\Psr17Factory, Zend\Diactoros\ResponseFactory, Http\Factory\Diactoros\ResponseFactory, Http\Factory\Guzzle\ResponseFactory, Http\Factory\Slim\ResponseFactory.

So when I revert this:

    public static function safeClassExists($class)
    {
        try {
            return class_exists($class) || interface_exists($class);
        } catch (\Exception $e) {
            return false;
        }

Back to the old behavior:

    public static function safeClassExists($class)
    {
        try {
            return class_exists($class);
        } catch (\Exception $e) {
            return false;
        }

Now the error is gone.

The debug trace points to https://github.com/FriendsOfSymfony/FOSHttpCache/blob/master/src/ProxyClient/HttpDispatcher.php#L99

Any idea what this could be?

[onEXHovia]

I Confirm the problem on the Version 1.7.3. After install symfony/http-client i get the same exception as @XWB.

[XWB]

Fixed in https://github.com/php-http/discovery/releases/tag/1.7.4