Fix some \Throwable support remaining issues

Author: fancyweb

DataCollector/HttpClientDataCollector.php

@@ -33,8 +33,10 @@ public function registerClient(string $name, TraceableHttpClient $client)
 
     /**
      * {@inheritdoc}
+     *
+     * @param \Throwable|null $exception
      */
-    public function collect(Request $request, Response $response, \Exception $exception = null)
+    public function collect(Request $request, Response $response/*, \Throwable $exception = null*/)
     {
         $this->initData();
 

composer.json

@@ -31,10 +31,12 @@
         "php-http/httplug": "^1.0|^2.0",
         "psr/http-client": "^1.0",
         "symfony/dependency-injection": "^4.3|^5.0",
-        "symfony/http-kernel": "^4.3",
+        "symfony/http-kernel": "^4.4",
         "symfony/process": "^4.2|^5.0",
-        "symfony/service-contracts": "^1.0|^2",
-        "symfony/var-dumper": "^4.3|^5.0"
+        "symfony/service-contracts": "^1.0|^2"
+    },
+    "conflict": {
+        "symfony/http-kernel": "<4.4"
     },
     "autoload": {
         "psr-4": { "Symfony\\Component\\HttpClient\\": "" },