diff --git a/core/lib/Drupal/Core/DependencyInjection/Compiler/ModifyServiceDefinitionsPass.php b/core/lib/Drupal/Core/DependencyInjection/Compiler/ModifyServiceDefinitionsPass.php
index 748bf44..750fedb 100644
--- a/core/lib/Drupal/Core/DependencyInjection/Compiler/ModifyServiceDefinitionsPass.php
+++ b/core/lib/Drupal/Core/DependencyInjection/Compiler/ModifyServiceDefinitionsPass.php
@@ -24,6 +24,7 @@ public function process(ContainerBuilder $container) {
     if (!$container->has('kernel')) {
       return;
     }
+
     $kernel = $container->get('kernel');
     if (!($kernel instanceof DrupalKernelInterface)) {
       return;
diff --git a/core/lib/Drupal/Core/DependencyInjection/Compiler/RegisterAccessChecksPass.php b/core/lib/Drupal/Core/DependencyInjection/Compiler/RegisterAccessChecksPass.php
index a9ec3b6..5757e80 100644
--- a/core/lib/Drupal/Core/DependencyInjection/Compiler/RegisterAccessChecksPass.php
+++ b/core/lib/Drupal/Core/DependencyInjection/Compiler/RegisterAccessChecksPass.php
@@ -16,9 +16,7 @@
 class RegisterAccessChecksPass implements CompilerPassInterface {
 
   /**
-   * Implements CompilerPassInterface::process().
-   *
-   * Adds services tagged 'access_check' to the access_manager service.
+   * {@inheritdoc}
    */
   public function process(ContainerBuilder $container) {
     if (!$container->hasDefinition('access_manager')) {
@@ -43,4 +41,5 @@ public function process(ContainerBuilder $container) {
       $access_manager->addMethodCall('addCheckService', array($id, $method, $applies, $needs_incoming_request));
     }
   }
+
 }
diff --git a/core/lib/Drupal/Core/DependencyInjection/Compiler/RegisterEventSubscribersPass.php b/core/lib/Drupal/Core/DependencyInjection/Compiler/RegisterEventSubscribersPass.php
index 1adfb9e..64071c2 100644
--- a/core/lib/Drupal/Core/DependencyInjection/Compiler/RegisterEventSubscribersPass.php
+++ b/core/lib/Drupal/Core/DependencyInjection/Compiler/RegisterEventSubscribersPass.php
@@ -14,6 +14,10 @@
  * Registers all event subscribers to the event dispatcher.
  */
 class RegisterEventSubscribersPass implements CompilerPassInterface {
+
+  /**
+   * {@inheritdoc}
+   */
   public function process(ContainerBuilder $container) {
     if (!$container->hasDefinition('event_dispatcher')) {
       return;
@@ -24,7 +28,8 @@ public function process(ContainerBuilder $container) {
     $event_subscriber_info = [];
     foreach ($container->findTaggedServiceIds('event_subscriber') as $id => $attributes) {
 
-      // We must assume that the class value has been correctly filled, even if the service is created by a factory
+      // We must assume that the class value has been correctly filled, even if
+      // the service is created by a factory.
       $class = $container->getDefinition($id)->getClass();
 
       $refClass = new \ReflectionClass($class);
@@ -58,4 +63,5 @@ public function process(ContainerBuilder $container) {
 
     $definition->addArgument($event_subscriber_info);
   }
+
 }
diff --git a/core/lib/Drupal/Core/DependencyInjection/Compiler/RegisterServicesForDestructionPass.php b/core/lib/Drupal/Core/DependencyInjection/Compiler/RegisterServicesForDestructionPass.php
index ca04b02..2be98e1 100644
--- a/core/lib/Drupal/Core/DependencyInjection/Compiler/RegisterServicesForDestructionPass.php
+++ b/core/lib/Drupal/Core/DependencyInjection/Compiler/RegisterServicesForDestructionPass.php
@@ -27,10 +27,10 @@ public function process(ContainerBuilder $container) {
     }
 
     $definition = $container->getDefinition('kernel_destruct_subscriber');
-
     $services = $container->findTaggedServiceIds('needs_destruction');
     foreach ($services as $id => $attributes) {
       $definition->addMethodCall('registerService', array($id));
     }
   }
+
 }
diff --git a/core/lib/Drupal/Core/DependencyInjection/Container.php b/core/lib/Drupal/Core/DependencyInjection/Container.php
index c86aace..c5ea726 100644
--- a/core/lib/Drupal/Core/DependencyInjection/Container.php
+++ b/core/lib/Drupal/Core/DependencyInjection/Container.php
@@ -34,5 +34,4 @@ public function __sleep() {
     assert(FALSE, 'The container was serialized.');
     return array_keys(get_object_vars($this));
   }
-
 }