diff --git a/src/Symfony/Component/HttpKernel/Config/FileLocator.php b/src/Symfony/Component/HttpKernel/Config/FileLocator.php
index 84de1291e1..652198d488 100644
--- a/src/Symfony/Component/HttpKernel/Config/FileLocator.php
+++ b/src/Symfony/Component/HttpKernel/Config/FileLocator.php
@@ -21,7 +21,7 @@ use Symfony\Component\HttpKernel\KernelInterface;
  */
 class FileLocator extends BaseFileLocator
 {
-    protected $kernel;
+    private $kernel;
 
     /**
      * Constructor.
diff --git a/src/Symfony/Component/HttpKernel/Controller/ControllerResolver.php b/src/Symfony/Component/HttpKernel/Controller/ControllerResolver.php
index 9f3137a08a..c4ddddbdcf 100644
--- a/src/Symfony/Component/HttpKernel/Controller/ControllerResolver.php
+++ b/src/Symfony/Component/HttpKernel/Controller/ControllerResolver.php
@@ -25,7 +25,7 @@ use Symfony\Component\HttpFoundation\Request;
  */
 class ControllerResolver implements ControllerResolverInterface
 {
-    protected $logger;
+    private $logger;
 
     /**
      * Constructor.
diff --git a/src/Symfony/Component/HttpKernel/DataCollector/ConfigDataCollector.php b/src/Symfony/Component/HttpKernel/DataCollector/ConfigDataCollector.php
index 2eff83f6f5..37e93b0528 100644
--- a/src/Symfony/Component/HttpKernel/DataCollector/ConfigDataCollector.php
+++ b/src/Symfony/Component/HttpKernel/DataCollector/ConfigDataCollector.php
@@ -24,7 +24,7 @@ use Symfony\Component\HttpFoundation\Response;
  */
 class ConfigDataCollector extends DataCollector
 {
-    protected $kernel;
+    private $kernel;
 
     /**
      * Constructor.
diff --git a/src/Symfony/Component/HttpKernel/DataCollector/EventDataCollector.php b/src/Symfony/Component/HttpKernel/DataCollector/EventDataCollector.php
index 5b5d762213..66f7bf8358 100644
--- a/src/Symfony/Component/HttpKernel/DataCollector/EventDataCollector.php
+++ b/src/Symfony/Component/HttpKernel/DataCollector/EventDataCollector.php
@@ -23,7 +23,7 @@ use Symfony\Component\EventDispatcher\EventDispatcherInterface;
  */
 class EventDataCollector extends DataCollector
 {
-    protected $dispatcher;
+    private $dispatcher;
 
     public function setEventDispatcher(EventDispatcherInterface $dispatcher)
     {
diff --git a/src/Symfony/Component/HttpKernel/DataCollector/LoggerDataCollector.php b/src/Symfony/Component/HttpKernel/DataCollector/LoggerDataCollector.php
index df6c234697..0f3924bcb0 100644
--- a/src/Symfony/Component/HttpKernel/DataCollector/LoggerDataCollector.php
+++ b/src/Symfony/Component/HttpKernel/DataCollector/LoggerDataCollector.php
@@ -21,7 +21,7 @@ use Symfony\Component\HttpFoundation\Response;
  */
 class LoggerDataCollector extends DataCollector
 {
-    protected $logger;
+    private $logger;
 
     public function __construct($logger = null)
     {
diff --git a/src/Symfony/Component/HttpKernel/DataCollector/RequestDataCollector.php b/src/Symfony/Component/HttpKernel/DataCollector/RequestDataCollector.php
index 6dbdaacefe..c3f1703432 100644
--- a/src/Symfony/Component/HttpKernel/DataCollector/RequestDataCollector.php
+++ b/src/Symfony/Component/HttpKernel/DataCollector/RequestDataCollector.php
@@ -122,7 +122,7 @@ class RequestDataCollector extends DataCollector
         return 'request';
     }
 
-    protected function getCookieHeader($name, $value, $expires, $path, $domain, $secure, $httponly)
+    private function getCookieHeader($name, $value, $expires, $path, $domain, $secure, $httponly)
     {
         $cookie = sprintf('%s=%s', $name, urlencode($value));
 
diff --git a/src/Symfony/Component/HttpKernel/Debug/ErrorHandler.php b/src/Symfony/Component/HttpKernel/Debug/ErrorHandler.php
index f71723a2a8..a4d56914ad 100644
--- a/src/Symfony/Component/HttpKernel/Debug/ErrorHandler.php
+++ b/src/Symfony/Component/HttpKernel/Debug/ErrorHandler.php
@@ -18,7 +18,7 @@ namespace Symfony\Component\HttpKernel\Debug;
  */
 class ErrorHandler
 {
-    protected $levels = array(
+    private $levels = array(
         E_WARNING           => 'Warning',
         E_NOTICE            => 'Notice',
         E_USER_ERROR        => 'User Error',
@@ -28,7 +28,7 @@ class ErrorHandler
         E_RECOVERABLE_ERROR => 'Catchable Fatal Error',
     );
 
-    protected $level;
+    private $level;
 
     /**
      * Constructor.
diff --git a/src/Symfony/Component/HttpKernel/Debug/ExceptionListener.php b/src/Symfony/Component/HttpKernel/Debug/ExceptionListener.php
index f4f967e995..ecf4231392 100644
--- a/src/Symfony/Component/HttpKernel/Debug/ExceptionListener.php
+++ b/src/Symfony/Component/HttpKernel/Debug/ExceptionListener.php
@@ -26,8 +26,8 @@ use Symfony\Component\HttpFoundation\Request;
  */
 class ExceptionListener
 {
-    protected $controller;
-    protected $logger;
+    private $controller;
+    private $logger;
 
     public function __construct($controller, LoggerInterface $logger = null)
     {
diff --git a/src/Symfony/Component/HttpKernel/DependencyInjection/Extension.php b/src/Symfony/Component/HttpKernel/DependencyInjection/Extension.php
index 409bfe7614..a2a31375aa 100644
--- a/src/Symfony/Component/HttpKernel/DependencyInjection/Extension.php
+++ b/src/Symfony/Component/HttpKernel/DependencyInjection/Extension.php
@@ -22,8 +22,8 @@ use Symfony\Component\DependencyInjection\Container;
  */
 abstract class Extension implements ExtensionInterface
 {
-    protected $classes = array();
-    protected $classMap = array();
+    private $classes = array();
+    private $classMap = array();
 
     /**
      * Gets the classes to cache.
@@ -40,7 +40,7 @@ abstract class Extension implements ExtensionInterface
      *
      * @param array $classes An array of classes
      */
-    protected function addClassesToCompile(array $classes)
+    public function addClassesToCompile(array $classes)
     {
         $this->classes = array_merge($this->classes, $classes);
     }
diff --git a/src/Symfony/Component/HttpKernel/Exception/FlattenException.php b/src/Symfony/Component/HttpKernel/Exception/FlattenException.php
index 93380e8dff..c178eb1f6c 100644
--- a/src/Symfony/Component/HttpKernel/Exception/FlattenException.php
+++ b/src/Symfony/Component/HttpKernel/Exception/FlattenException.php
@@ -169,7 +169,7 @@ class FlattenException
         }
     }
 
-    protected function flattenArgs($args)
+    private function flattenArgs($args)
     {
         $result = array();
         foreach ($args as $key => $value) {
diff --git a/src/Symfony/Component/HttpKernel/Exception/HttpException.php b/src/Symfony/Component/HttpKernel/Exception/HttpException.php
index 518a9b02af..c487f7a057 100644
--- a/src/Symfony/Component/HttpKernel/Exception/HttpException.php
+++ b/src/Symfony/Component/HttpKernel/Exception/HttpException.php
@@ -18,8 +18,8 @@ namespace Symfony\Component\HttpKernel\Exception;
  */
 class HttpException extends \RuntimeException implements HttpExceptionInterface
 {
-    protected $statusCode;
-    protected $headers;
+    private $statusCode;
+    private $headers;
 
     public function __construct($statusCode, $message = null, \Exception $previous = null, array $headers = array(), $code = 0)
     {
diff --git a/src/Symfony/Component/HttpKernel/HttpCache/Esi.php b/src/Symfony/Component/HttpKernel/HttpCache/Esi.php
index 4ee28f55b2..3ac0e49587 100644
--- a/src/Symfony/Component/HttpKernel/HttpCache/Esi.php
+++ b/src/Symfony/Component/HttpKernel/HttpCache/Esi.php
@@ -28,7 +28,7 @@ use Symfony\Component\HttpKernel\HttpKernelInterface;
  */
 class Esi
 {
-    protected $contentTypes;
+    private $contentTypes;
 
     /**
      * Constructor.
@@ -212,7 +212,7 @@ class Esi
      *
      * @return string The response content for the include.
      */
-    protected function handleEsiIncludeTag($attributes)
+    private function handleEsiIncludeTag($attributes)
     {
         $options = array();
         preg_match_all('/(src|onerror|alt)="([^"]*?)"/', $attributes[1], $matches, PREG_SET_ORDER);
diff --git a/src/Symfony/Component/HttpKernel/HttpCache/EsiListener.php b/src/Symfony/Component/HttpKernel/HttpCache/EsiListener.php
index 0f02a711fa..95dea40830 100644
--- a/src/Symfony/Component/HttpKernel/HttpCache/EsiListener.php
+++ b/src/Symfony/Component/HttpKernel/HttpCache/EsiListener.php
@@ -22,8 +22,8 @@ use Symfony\Component\HttpKernel\Event\FilterResponseEvent;
  */
 class EsiListener
 {
-    protected $i;
-    protected $esi;
+    private $i;
+    private $esi;
 
     /**
      * Constructor.
diff --git a/src/Symfony/Component/HttpKernel/HttpCache/EsiResponseCacheStrategy.php b/src/Symfony/Component/HttpKernel/HttpCache/EsiResponseCacheStrategy.php
index 2a36effc80..9e683f1fcd 100644
--- a/src/Symfony/Component/HttpKernel/HttpCache/EsiResponseCacheStrategy.php
+++ b/src/Symfony/Component/HttpKernel/HttpCache/EsiResponseCacheStrategy.php
@@ -28,9 +28,9 @@ use Symfony\Component\HttpFoundation\Response;
  */
 class EsiResponseCacheStrategy implements EsiResponseCacheStrategyInterface
 {
-    protected $cacheable = true;
-    protected $ttls = array();
-    protected $maxAges = array();
+    private $cacheable = true;
+    private $ttls = array();
+    private $maxAges = array();
 
     /**
      * Adds a Response.
diff --git a/src/Symfony/Component/HttpKernel/HttpCache/HttpCache.php b/src/Symfony/Component/HttpKernel/HttpCache/HttpCache.php
index 6e2a89ee91..e022f7f404 100644
--- a/src/Symfony/Component/HttpKernel/HttpCache/HttpCache.php
+++ b/src/Symfony/Component/HttpKernel/HttpCache/HttpCache.php
@@ -26,12 +26,12 @@ use Symfony\Component\HttpFoundation\Response;
  */
 class HttpCache implements HttpKernelInterface
 {
-    protected $kernel;
-    protected $traces;
-    protected $store;
-    protected $request;
-    protected $esi;
-    protected $esiCacheStrategy;
+    private $kernel;
+    private $store;
+    private $request;
+    private $esi;
+    private $esiCacheStrategy;
+    private $traces;
 
     /**
      * Constructor.
@@ -519,7 +519,7 @@ class HttpCache implements HttpKernelInterface
      *
      * @return Response A Response instance
      */
-    protected function restoreResponseBody(Request $request, Response $response)
+    private function restoreResponseBody(Request $request, Response $response)
     {
         if ('head' === strtolower($request->getMethod())) {
             $response->setContent('');
@@ -568,7 +568,7 @@ class HttpCache implements HttpKernelInterface
      *
      * @return Boolean true if the Request is private, false otherwise
      */
-    protected function isPrivateRequest(Request $request)
+    private function isPrivateRequest(Request $request)
     {
         foreach ($this->options['private_headers'] as $key) {
             $key = strtolower(str_replace('HTTP_', '', $key));
@@ -590,7 +590,7 @@ class HttpCache implements HttpKernelInterface
      *
      * @param string $event The event name
      */
-    protected function record(Request $request, $event)
+    private function record(Request $request, $event)
     {
         $path = $request->getPathInfo();
         if ($qs = $request->getQueryString()) {
diff --git a/src/Symfony/Component/HttpKernel/HttpCache/Store.php b/src/Symfony/Component/HttpKernel/HttpCache/Store.php
index 11d41a6ddc..16c076b99d 100644
--- a/src/Symfony/Component/HttpKernel/HttpCache/Store.php
+++ b/src/Symfony/Component/HttpKernel/HttpCache/Store.php
@@ -25,9 +25,9 @@ use Symfony\Component\HttpFoundation\HeaderBag;
  */
 class Store implements StoreInterface
 {
-    protected $root;
-    protected $keyCache;
-    protected $locks;
+    private $root;
+    private $keyCache;
+    private $locks;
 
     /**
      * Constructor.
@@ -237,7 +237,7 @@ class Store implements StoreInterface
      *
      * @return Boolean true if the the two environments match, false otherwise
      */
-    protected function requestsMatch($vary, $env1, $env2)
+    private function requestsMatch($vary, $env1, $env2)
     {
         if (empty($vary)) {
             return true;
@@ -264,7 +264,7 @@ class Store implements StoreInterface
      *
      * @return array An array of data associated with the key
      */
-    protected function getMetadata($key)
+    private function getMetadata($key)
     {
         if (false === $entries = $this->load($key)) {
             return array();
@@ -298,7 +298,7 @@ class Store implements StoreInterface
      *
      * @return string The data associated with the key
      */
-    protected function load($key)
+    private function load($key)
     {
         $path = $this->getPath($key);
 
@@ -311,7 +311,7 @@ class Store implements StoreInterface
      * @param string $key  The store key
      * @param string $data The data to store
      */
-    protected function save($key, $data)
+    private function save($key, $data)
     {
         $path = $this->getPath($key);
         if (!is_dir(dirname($path)) && false === @mkdir(dirname($path), 0777, true)) {
@@ -348,7 +348,7 @@ class Store implements StoreInterface
      *
      * @return string A key for the given Request
      */
-    protected function getCacheKey(Request $request)
+    private function getCacheKey(Request $request)
     {
         if (isset($this->keyCache[$request])) {
             return $this->keyCache[$request];
@@ -364,7 +364,7 @@ class Store implements StoreInterface
      *
      * @return array An array of HTTP headers
      */
-    protected function persistRequest(Request $request)
+    private function persistRequest(Request $request)
     {
         return $request->headers->all();
     }
@@ -376,7 +376,7 @@ class Store implements StoreInterface
      *
      * @return array An array of HTTP headers
      */
-    protected function persistResponse(Response $response)
+    private function persistResponse(Response $response)
     {
         $headers = $response->headers->all();
         $headers['X-Status'] = array($response->getStatusCode());
@@ -390,7 +390,7 @@ class Store implements StoreInterface
      * @param array  $headers An array of HTTP headers for the Response
      * @param string $body    The Response body
      */
-    protected function restoreResponse($headers, $body = null)
+    private function restoreResponse($headers, $body = null)
     {
         $status = $headers['X-Status'][0];
         unset($headers['X-Status']);
diff --git a/src/Symfony/Component/HttpKernel/HttpKernel.php b/src/Symfony/Component/HttpKernel/HttpKernel.php
index c6f6d714f5..49dbd9aad3 100644
--- a/src/Symfony/Component/HttpKernel/HttpKernel.php
+++ b/src/Symfony/Component/HttpKernel/HttpKernel.php
@@ -85,7 +85,7 @@ class HttpKernel implements HttpKernelInterface
      * @throws \LogicException If one of the listener does not behave as expected
      * @throws NotFoundHttpException When controller cannot be found
      */
-    protected function handleRaw(Request $request, $type = self::MASTER_REQUEST)
+    private function handleRaw(Request $request, $type = self::MASTER_REQUEST)
     {
         // request
         $event = new GetResponseEvent($this, $request, $type);
@@ -138,7 +138,7 @@ class HttpKernel implements HttpKernelInterface
      *
      * @throws \RuntimeException if the passed object is not a Response instance
      */
-    protected function filterResponse(Response $response, Request $request, $type)
+    private function filterResponse(Response $response, Request $request, $type)
     {
         $event = new FilterResponseEvent($this, $request, $type, $response);
 
@@ -156,7 +156,7 @@ class HttpKernel implements HttpKernelInterface
      *
      * @return Response A Response instance
      */
-    protected function handleException(\Exception $e, $request, $type)
+    private function handleException(\Exception $e, $request, $type)
     {
         $event = new GetResponseForExceptionEvent($this, $request, $type, $e);
         $this->dispatcher->dispatch(Events::onCoreException, $event);
@@ -168,7 +168,7 @@ class HttpKernel implements HttpKernelInterface
         return $this->filterResponse($event->getResponse(), $request, $type);
     }
 
-    protected function varToString($var)
+    private function varToString($var)
     {
         if (is_object($var)) {
             return sprintf('[object](%s)', get_class($var));
diff --git a/src/Symfony/Component/HttpKernel/Profiler/Profiler.php b/src/Symfony/Component/HttpKernel/Profiler/Profiler.php
index 5a5e936c59..8bd93cac42 100644
--- a/src/Symfony/Component/HttpKernel/Profiler/Profiler.php
+++ b/src/Symfony/Component/HttpKernel/Profiler/Profiler.php
@@ -24,18 +24,18 @@ use Symfony\Component\HttpKernel\Log\LoggerInterface;
  */
 class Profiler
 {
-    protected $storage;
-    protected $collectors;
-    protected $logger;
-    protected $enabled;
-    protected $token;
-    protected $parent;
-    protected $data;
-    protected $ip;
-    protected $url;
-    protected $time;
-    protected $empty;
-    protected $children;
+    private $storage;
+    private $collectors;
+    private $logger;
+    private $enabled;
+    private $token;
+    private $parent;
+    private $data;
+    private $ip;
+    private $url;
+    private $time;
+    private $empty;
+    private $children;
 
     /**
      * Constructor.
diff --git a/src/Symfony/Component/HttpKernel/ResponseListener.php b/src/Symfony/Component/HttpKernel/ResponseListener.php
index 4b72643757..46eaaac67f 100644
--- a/src/Symfony/Component/HttpKernel/ResponseListener.php
+++ b/src/Symfony/Component/HttpKernel/ResponseListener.php
@@ -21,7 +21,7 @@ use Symfony\Component\HttpFoundation\Response;
  */
 class ResponseListener
 {
-    protected $charset;
+    private $charset;
 
     public function __construct($charset)
     {