XF\Repository\SessionActivity::applyActivityDetails php 7+ compatibility issue

[XFFA.IR Bot]

PHP:

public function applyActivityDetails($activities)
{
...
$controller = $this->app()->extension()->extendClass($controller);
try
{
   $valid = ($controller
      && class_exists($controller)
      && is_callable([$controller, 'getActivityDetails'])
   );
}
catch (\Exception $e)
{
   // don't let a class load error (XFCP) error
   $valid = false;
}

However class_exists throws and Error not an Exception on class load error.