Make sure we do not break BC

Author: Nyholm

src/Plugin/HistoryPlugin.php

@@ -3,6 +3,7 @@
 namespace Http\Client\Common\Plugin;
 
 use Http\Client\Common\Plugin;
+use Http\Client\Exception;
 use Psr\Http\Message\RequestInterface;
 use Psr\Http\Message\ResponseInterface;
 
@@ -40,7 +41,9 @@ public function handleRequest(RequestInterface $request, callable $next, callabl
 
             return $response;
         }, function (\Exception $exception) use ($request, $journal) {
-            $journal->addFailure($request, $exception);
+            if ($exception instanceof Exception) {
+                $journal->addFailure($request, $exception);
+            }
 
             throw $exception;
         });

src/Plugin/Journal.php

@@ -2,6 +2,7 @@
 
 namespace Http\Client\Common\Plugin;
 
+use Http\Client\Exception;
 use Psr\Http\Message\RequestInterface;
 use Psr\Http\Message\ResponseInterface;
 
@@ -24,7 +25,7 @@ public function addSuccess(RequestInterface $request, ResponseInterface $respons
      * Record a failed call.
      *
      * @param RequestInterface $request   Request use to make the call
-     * @param \Exception       $exception Exception returned by the call
+     * @param Exception        $exception Exception returned by the call
      */
-    public function addFailure(RequestInterface $request, \Exception $exception);
+    public function addFailure(RequestInterface $request, Exception $exception);
 }