diff --git a/core/lib/Drupal/Core/Controller/ExceptionController.php b/core/lib/Drupal/Core/Controller/ExceptionController.php
index af66226..06a89a8 100644
--- a/core/lib/Drupal/Core/Controller/ExceptionController.php
+++ b/core/lib/Drupal/Core/Controller/ExceptionController.php
@@ -18,6 +18,7 @@
 use Drupal\Component\Utility\String;
 use Symfony\Component\Debug\Exception\FlattenException;
 use Drupal\Core\ContentNegotiation;
+use Drupal\Core\Utility\Error;
 
 /**
  * This controller handles HTTP errors generated by the routing system.
@@ -413,7 +414,8 @@ protected function decodeException(FlattenException $exception) {
         array_shift($backtrace);
       }
     }
-    $caller = $this->getLastCaller($backtrace);
+
+    $caller = Error::getLastCaller($backtrace);
 
     return array(
       '%type' => $exception->getClass(),
@@ -427,46 +429,4 @@ protected function decodeException(FlattenException $exception) {
     );
   }
 
-  /**
-   * Gets the last caller from a backtrace.
-   *
-   * The last caller is not necessarily the first item in the backtrace. Rather,
-   * it is the first item in the backtrace that is a PHP userspace function,
-   * and not one of our debug functions.
-   *
-   * @param $backtrace
-   *   A standard PHP backtrace.
-   *
-   * @return array
-   *   An associative array with keys 'file', 'line' and 'function'.
-   */
-  protected function getLastCaller($backtrace) {
-    // Ignore black listed error handling functions.
-    $blacklist = array('debug', '_drupal_error_handler', '_drupal_exception_handler');
-
-    // Errors that occur inside PHP internal functions do not generate
-    // information about file and line.
-    while (($backtrace && !isset($backtrace[0]['line'])) ||
-          (isset($backtrace[1]['function']) && in_array($backtrace[1]['function'], $blacklist))) {
-      array_shift($backtrace);
-    }
-
-    // The first trace is the call itself.
-    // It gives us the line and the file of the last call.
-    $call = $backtrace[0];
-
-    // The second call give us the function where the call originated.
-    if (isset($backtrace[1])) {
-      if (isset($backtrace[1]['class'])) {
-        $call['function'] = $backtrace[1]['class'] . $backtrace[1]['type'] . $backtrace[1]['function'] . '()';
-      }
-      else {
-        $call['function'] = $backtrace[1]['function'] . '()';
-      }
-    }
-    else {
-      $call['function'] = 'main()';
-    }
-    return $call;
-  }
 }