Handle PHP 7 Throwable in ApiProblemListener.

src/Listener/ApiProblemListener.php

@@ -7,6 +7,8 @@
 
 namespace ZF\ApiProblem\Listener;
 
+use Exception;
+use Throwable;
 use Zend\EventManager\EventManagerInterface;
 use Zend\EventManager\AbstractListenerAggregate;
 use Zend\Http\Header\Accept as AcceptHeader;
@@ -96,7 +98,7 @@ public function onRender(MvcEvent $e)
         $status = $e->getResponse()->getStatusCode();
         $exception = $model->getVariable('exception');
 
-        if ($exception instanceof \Exception) {
+        if ($exception instanceof Throwable || $exception instanceof Exception) {
             $apiProblem = new ApiProblem($status, $exception);
         } else {
             $apiProblem = new ApiProblem($status, $model->getVariable('message'));
@@ -156,7 +158,7 @@ public function onDispatchError(MvcEvent $e)
 
         // Marshall an ApiProblem and view model based on the exception
         $exception = $e->getParam('exception');
-        if (! $exception instanceof \Exception) {
+        if (! ($exception instanceof Throwable || $exception instanceof Exception)) {
             // If it's not an exception, do not know what to do.
             return;
         }