bug #693 Fix ExceptionListener: exception to log isn't necessarily a …

…BaseException instance (ogizanagi)

This PR was merged into the master branch.

Discussion
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Fix ExceptionListener: exception to log isn't necessarily a BaseException instance

For instance [when an exception occurs when trying to render the exception template](https://github.com/javiereguiluz/EasyAdminBundle/blob/master/EventListener/ExceptionListener.php#L117-L120).

Commits
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549c7f8 Fix ExceptionListener: exception to log isn't necessarily a BaseException instance

EventListener/ExceptionListener.php

@@ -72,8 +72,13 @@ public function showExceptionPageAction(FlattenException $exception)
      */
     protected function logException(\Exception $exception, $message, $original = true)
     {
+        if (!$exception instanceof BaseException) {
+            parent::logException($exception, $message, $original);
+
+            return;
+        }
+
         if (null !== $this->logger) {
-            /** @var BaseException $exception */
             if ($exception->getStatusCode() >= 500) {
                 $this->logger->critical($message, array('exception' => $exception));
             } else {