Fixes

Author: nilportugues

src/Serializer.php

@@ -552,7 +552,7 @@ protected function extractAllInhertitedProperties($value, ReflectionClass $rc, a
             /* @var $property \ReflectionProperty */
             foreach ($rc->getProperties() as $property) {
                 $property->setAccessible(true);
-                $rp[$property->getName()] = $property->getValue($this);
+                $rp[$property->getName()] = $property->getValue($value);
             }
             $data = \array_merge($rp, $data);
         } while ($rc = $rc->getParentClass());

src/Strategy/NullStrategy.php

@@ -27,7 +27,7 @@ public function serialize($value)
     }
 
     /**
-     * @param $value
+     * @param string $value
      *
      * @return array
      */