diff --git a/src/Symfony/Component/DependencyInjection/Dumper/PhpDumper.php b/src/Symfony/Component/DependencyInjection/Dumper/PhpDumper.php
index 7da1f3b418..1437db56d0 100644
--- a/src/Symfony/Component/DependencyInjection/Dumper/PhpDumper.php
+++ b/src/Symfony/Component/DependencyInjection/Dumper/PhpDumper.php
@@ -1039,7 +1039,7 @@ use Symfony\Component\DependencyInjection\ParameterBag\FrozenParameterBag;
  */
 class $class extends $baseClass
 {
-    private \$parameters;
+    private \$parameters = [];
     private \$targetDirs = [];
 
     public function __construct()
diff --git a/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/container_alias_deprecation.php b/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/container_alias_deprecation.php
index 695c49c917..cd77753e7b 100644
--- a/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/container_alias_deprecation.php
+++ b/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/container_alias_deprecation.php
@@ -16,7 +16,7 @@ use Symfony\Component\DependencyInjection\ParameterBag\FrozenParameterBag;
  */
 class Symfony_DI_PhpDumper_Test_Aliases_Deprecation extends Container
 {
-    private $parameters;
+    private $parameters = [];
     private $targetDirs = [];
 
     public function __construct()
diff --git a/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/custom_container_class_constructor_without_arguments.php b/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/custom_container_class_constructor_without_arguments.php
index fdc9510ffe..a5ea8d4015 100644
--- a/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/custom_container_class_constructor_without_arguments.php
+++ b/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/custom_container_class_constructor_without_arguments.php
@@ -18,7 +18,7 @@ use Symfony\Component\DependencyInjection\ParameterBag\FrozenParameterBag;
  */
 class ProjectServiceContainer extends \Symfony\Component\DependencyInjection\Tests\Fixtures\Container\ConstructorWithoutArgumentsContainer
 {
-    private $parameters;
+    private $parameters = [];
     private $targetDirs = [];
 
     public function __construct()
diff --git a/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/custom_container_class_with_mandatory_constructor_arguments.php b/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/custom_container_class_with_mandatory_constructor_arguments.php
index e9e0ce940c..371c9e353c 100644
--- a/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/custom_container_class_with_mandatory_constructor_arguments.php
+++ b/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/custom_container_class_with_mandatory_constructor_arguments.php
@@ -18,7 +18,7 @@ use Symfony\Component\DependencyInjection\ParameterBag\FrozenParameterBag;
  */
 class ProjectServiceContainer extends \Symfony\Component\DependencyInjection\Tests\Fixtures\Container\ConstructorWithMandatoryArgumentsContainer
 {
-    private $parameters;
+    private $parameters = [];
     private $targetDirs = [];
 
     public function __construct()
diff --git a/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/custom_container_class_with_optional_constructor_arguments.php b/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/custom_container_class_with_optional_constructor_arguments.php
index 84714daaf1..c10c8a9183 100644
--- a/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/custom_container_class_with_optional_constructor_arguments.php
+++ b/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/custom_container_class_with_optional_constructor_arguments.php
@@ -18,7 +18,7 @@ use Symfony\Component\DependencyInjection\ParameterBag\FrozenParameterBag;
  */
 class ProjectServiceContainer extends \Symfony\Component\DependencyInjection\Tests\Fixtures\Container\ConstructorWithOptionalArgumentsContainer
 {
-    private $parameters;
+    private $parameters = [];
     private $targetDirs = [];
 
     public function __construct()
diff --git a/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/custom_container_class_without_constructor.php b/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/custom_container_class_without_constructor.php
index 5fecfcff4f..a397e9b279 100644
--- a/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/custom_container_class_without_constructor.php
+++ b/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/custom_container_class_without_constructor.php
@@ -18,7 +18,7 @@ use Symfony\Component\DependencyInjection\ParameterBag\FrozenParameterBag;
  */
 class ProjectServiceContainer extends \Symfony\Component\DependencyInjection\Tests\Fixtures\Container\NoConstructorContainer
 {
-    private $parameters;
+    private $parameters = [];
     private $targetDirs = [];
 
     public function __construct()
diff --git a/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services1-1.php b/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services1-1.php
index 09e5585c11..e66edba4a6 100644
--- a/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services1-1.php
+++ b/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services1-1.php
@@ -18,7 +18,7 @@ use Symfony\Component\DependencyInjection\ParameterBag\FrozenParameterBag;
  */
 class Container extends \Symfony\Component\DependencyInjection\Dump\AbstractContainer
 {
-    private $parameters;
+    private $parameters = [];
     private $targetDirs = [];
 
     public function __construct()
diff --git a/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services1.php b/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services1.php
index 25b363060b..831aefb5ca 100644
--- a/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services1.php
+++ b/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services1.php
@@ -16,7 +16,7 @@ use Symfony\Component\DependencyInjection\ParameterBag\FrozenParameterBag;
  */
 class ProjectServiceContainer extends Container
 {
-    private $parameters;
+    private $parameters = [];
     private $targetDirs = [];
 
     public function __construct()
diff --git a/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services10.php b/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services10.php
index 101e8b57e8..081fd05102 100644
--- a/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services10.php
+++ b/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services10.php
@@ -16,7 +16,7 @@ use Symfony\Component\DependencyInjection\ParameterBag\FrozenParameterBag;
  */
 class ProjectServiceContainer extends Container
 {
-    private $parameters;
+    private $parameters = [];
     private $targetDirs = [];
 
     public function __construct()
diff --git a/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services12.php b/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services12.php
index f37923c4b1..978bd775cf 100644
--- a/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services12.php
+++ b/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services12.php
@@ -16,7 +16,7 @@ use Symfony\Component\DependencyInjection\ParameterBag\FrozenParameterBag;
  */
 class ProjectServiceContainer extends Container
 {
-    private $parameters;
+    private $parameters = [];
     private $targetDirs = [];
 
     public function __construct()
diff --git a/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services13.php b/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services13.php
index ff3aef254d..4cbb648a78 100644
--- a/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services13.php
+++ b/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services13.php
@@ -16,7 +16,7 @@ use Symfony\Component\DependencyInjection\ParameterBag\FrozenParameterBag;
  */
 class ProjectServiceContainer extends Container
 {
-    private $parameters;
+    private $parameters = [];
     private $targetDirs = [];
 
     public function __construct()
diff --git a/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services19.php b/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services19.php
index 7f8c93c5c6..a0a29ba8b1 100644
--- a/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services19.php
+++ b/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services19.php
@@ -16,7 +16,7 @@ use Symfony\Component\DependencyInjection\ParameterBag\FrozenParameterBag;
  */
 class ProjectServiceContainer extends Container
 {
-    private $parameters;
+    private $parameters = [];
     private $targetDirs = [];
 
     public function __construct()
diff --git a/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services24.php b/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services24.php
index 96dee5eb92..9909d88589 100644
--- a/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services24.php
+++ b/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services24.php
@@ -16,7 +16,7 @@ use Symfony\Component\DependencyInjection\ParameterBag\FrozenParameterBag;
  */
 class ProjectServiceContainer extends Container
 {
-    private $parameters;
+    private $parameters = [];
     private $targetDirs = [];
 
     public function __construct()
diff --git a/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services26.php b/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services26.php
index 5d7c85b70d..9be6b232b2 100644
--- a/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services26.php
+++ b/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services26.php
@@ -16,7 +16,7 @@ use Symfony\Component\DependencyInjection\ParameterBag\FrozenParameterBag;
  */
 class Symfony_DI_PhpDumper_Test_EnvParameters extends Container
 {
-    private $parameters;
+    private $parameters = [];
     private $targetDirs = [];
 
     public function __construct()
diff --git a/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services33.php b/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services33.php
index 398c4406b1..97d67b78b3 100644
--- a/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services33.php
+++ b/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services33.php
@@ -16,7 +16,7 @@ use Symfony\Component\DependencyInjection\ParameterBag\FrozenParameterBag;
  */
 class ProjectServiceContainer extends Container
 {
-    private $parameters;
+    private $parameters = [];
     private $targetDirs = [];
 
     public function __construct()
diff --git a/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services8.php b/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services8.php
index d8894ced97..dc3d321ebf 100644
--- a/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services8.php
+++ b/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services8.php
@@ -16,7 +16,7 @@ use Symfony\Component\DependencyInjection\ParameterBag\FrozenParameterBag;
  */
 class ProjectServiceContainer extends Container
 {
-    private $parameters;
+    private $parameters = [];
     private $targetDirs = [];
 
     public function __construct()
diff --git a/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services9_as_files.txt b/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services9_as_files.txt
index e20a0fcd3b..1589c53c59 100644
--- a/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services9_as_files.txt
+++ b/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services9_as_files.txt
@@ -373,7 +373,7 @@ class ProjectServiceContainer extends Container
 {
     private $buildParameters;
     private $containerDir;
-    private $parameters;
+    private $parameters = [];
     private $targetDirs = [];
 
     public function __construct(array $buildParameters = [], $containerDir = __DIR__)
diff --git a/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services9_compiled.php b/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services9_compiled.php
index 3c6cea1a43..ea405d4895 100644
--- a/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services9_compiled.php
+++ b/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services9_compiled.php
@@ -16,7 +16,7 @@ use Symfony\Component\DependencyInjection\ParameterBag\FrozenParameterBag;
  */
 class ProjectServiceContainer extends Container
 {
-    private $parameters;
+    private $parameters = [];
     private $targetDirs = [];
 
     public function __construct()
diff --git a/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services9_inlined_factories.txt b/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services9_inlined_factories.txt
index 2a9df5a967..04e7de8981 100644
--- a/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services9_inlined_factories.txt
+++ b/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services9_inlined_factories.txt
@@ -39,7 +39,7 @@ class ProjectServiceContainer extends Container
 {
     private $buildParameters;
     private $containerDir;
-    private $parameters;
+    private $parameters = [];
     private $targetDirs = [];
 
     public function __construct(array $buildParameters = [], $containerDir = __DIR__)
diff --git a/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services9_lazy_inlined_factories.txt b/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services9_lazy_inlined_factories.txt
index 7be60f7129..39388a6a35 100644
--- a/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services9_lazy_inlined_factories.txt
+++ b/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services9_lazy_inlined_factories.txt
@@ -29,7 +29,7 @@ class ProjectServiceContainer extends Container
 {
     private $buildParameters;
     private $containerDir;
-    private $parameters;
+    private $parameters = [];
     private $targetDirs = [];
 
     public function __construct(array $buildParameters = [], $containerDir = __DIR__)
diff --git a/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_adawson.php b/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_adawson.php
index 4fde7e6d5d..43aa60c5ce 100644
--- a/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_adawson.php
+++ b/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_adawson.php
@@ -16,7 +16,7 @@ use Symfony\Component\DependencyInjection\ParameterBag\FrozenParameterBag;
  */
 class ProjectServiceContainer extends Container
 {
-    private $parameters;
+    private $parameters = [];
     private $targetDirs = [];
 
     public function __construct()
diff --git a/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_almost_circular_private.php b/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_almost_circular_private.php
index 9b7866a37a..3ca495283e 100644
--- a/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_almost_circular_private.php
+++ b/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_almost_circular_private.php
@@ -16,7 +16,7 @@ use Symfony\Component\DependencyInjection\ParameterBag\FrozenParameterBag;
  */
 class Symfony_DI_PhpDumper_Test_Almost_Circular_Private extends Container
 {
-    private $parameters;
+    private $parameters = [];
     private $targetDirs = [];
 
     public function __construct()
diff --git a/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_almost_circular_public.php b/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_almost_circular_public.php
index e404c829c3..8834fc727e 100644
--- a/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_almost_circular_public.php
+++ b/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_almost_circular_public.php
@@ -16,7 +16,7 @@ use Symfony\Component\DependencyInjection\ParameterBag\FrozenParameterBag;
  */
 class Symfony_DI_PhpDumper_Test_Almost_Circular_Public extends Container
 {
-    private $parameters;
+    private $parameters = [];
     private $targetDirs = [];
 
     public function __construct()
diff --git a/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_array_params.php b/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_array_params.php
index 4d7b13f620..563c3b7ae6 100644
--- a/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_array_params.php
+++ b/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_array_params.php
@@ -16,7 +16,7 @@ use Symfony\Component\DependencyInjection\ParameterBag\FrozenParameterBag;
  */
 class ProjectServiceContainer extends Container
 {
-    private $parameters;
+    private $parameters = [];
     private $targetDirs = [];
 
     public function __construct()
diff --git a/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_base64_env.php b/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_base64_env.php
index b25d3853d2..5652844e37 100644
--- a/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_base64_env.php
+++ b/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_base64_env.php
@@ -16,7 +16,7 @@ use Symfony\Component\DependencyInjection\ParameterBag\FrozenParameterBag;
  */
 class Symfony_DI_PhpDumper_Test_Base64Parameters extends Container
 {
-    private $parameters;
+    private $parameters = [];
     private $targetDirs = [];
 
     public function __construct()
diff --git a/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_csv_env.php b/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_csv_env.php
index c5266d2c4d..22fd21e075 100644
--- a/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_csv_env.php
+++ b/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_csv_env.php
@@ -16,7 +16,7 @@ use Symfony\Component\DependencyInjection\ParameterBag\FrozenParameterBag;
  */
 class Symfony_DI_PhpDumper_Test_CsvParameters extends Container
 {
-    private $parameters;
+    private $parameters = [];
     private $targetDirs = [];
 
     public function __construct()
diff --git a/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_dedup_lazy_proxy.php b/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_dedup_lazy_proxy.php
index 8e7a204d4c..72b08f7bca 100644
--- a/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_dedup_lazy_proxy.php
+++ b/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_dedup_lazy_proxy.php
@@ -16,7 +16,7 @@ use Symfony\Component\DependencyInjection\ParameterBag\FrozenParameterBag;
  */
 class ProjectServiceContainer extends Container
 {
-    private $parameters;
+    private $parameters = [];
     private $targetDirs = [];
 
     public function __construct()
diff --git a/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_deep_graph.php b/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_deep_graph.php
index 3f8f49bd3d..60f683e512 100644
--- a/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_deep_graph.php
+++ b/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_deep_graph.php
@@ -16,7 +16,7 @@ use Symfony\Component\DependencyInjection\ParameterBag\FrozenParameterBag;
  */
 class Symfony_DI_PhpDumper_Test_Deep_Graph extends Container
 {
-    private $parameters;
+    private $parameters = [];
     private $targetDirs = [];
 
     public function __construct()
diff --git a/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_default_env.php b/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_default_env.php
index 17fda12fc3..f565cf5f86 100644
--- a/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_default_env.php
+++ b/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_default_env.php
@@ -16,7 +16,7 @@ use Symfony\Component\DependencyInjection\ParameterBag\FrozenParameterBag;
  */
 class Symfony_DI_PhpDumper_Test_DefaultParameters extends Container
 {
-    private $parameters;
+    private $parameters = [];
     private $targetDirs = [];
 
     public function __construct()
diff --git a/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_env_in_id.php b/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_env_in_id.php
index 84fb1599bf..f0cca3ccfe 100644
--- a/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_env_in_id.php
+++ b/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_env_in_id.php
@@ -16,7 +16,7 @@ use Symfony\Component\DependencyInjection\ParameterBag\FrozenParameterBag;
  */
 class ProjectServiceContainer extends Container
 {
-    private $parameters;
+    private $parameters = [];
     private $targetDirs = [];
 
     public function __construct()
diff --git a/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_errored_definition.php b/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_errored_definition.php
index 23a15486f3..39e2299f4c 100644
--- a/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_errored_definition.php
+++ b/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_errored_definition.php
@@ -16,7 +16,7 @@ use Symfony\Component\DependencyInjection\ParameterBag\FrozenParameterBag;
  */
 class Symfony_DI_PhpDumper_Errored_Definition extends Container
 {
-    private $parameters;
+    private $parameters = [];
     private $targetDirs = [];
 
     public function __construct()
diff --git a/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_inline_requires.php b/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_inline_requires.php
index cca9d46cd0..8947bc37b6 100644
--- a/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_inline_requires.php
+++ b/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_inline_requires.php
@@ -16,7 +16,7 @@ use Symfony\Component\DependencyInjection\ParameterBag\FrozenParameterBag;
  */
 class ProjectServiceContainer extends Container
 {
-    private $parameters;
+    private $parameters = [];
     private $targetDirs = [];
 
     public function __construct()
diff --git a/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_inline_self_ref.php b/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_inline_self_ref.php
index ea76b0d157..60a39c608a 100644
--- a/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_inline_self_ref.php
+++ b/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_inline_self_ref.php
@@ -16,7 +16,7 @@ use Symfony\Component\DependencyInjection\ParameterBag\FrozenParameterBag;
  */
 class Symfony_DI_PhpDumper_Test_Inline_Self_Ref extends Container
 {
-    private $parameters;
+    private $parameters = [];
     private $targetDirs = [];
 
     public function __construct()
diff --git a/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_json_env.php b/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_json_env.php
index 5b90e5b416..47f2e73ac7 100644
--- a/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_json_env.php
+++ b/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_json_env.php
@@ -16,7 +16,7 @@ use Symfony\Component\DependencyInjection\ParameterBag\FrozenParameterBag;
  */
 class Symfony_DI_PhpDumper_Test_JsonParameters extends Container
 {
-    private $parameters;
+    private $parameters = [];
     private $targetDirs = [];
 
     public function __construct()
diff --git a/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_locator.php b/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_locator.php
index 5c6d4af8a5..dc120fb118 100644
--- a/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_locator.php
+++ b/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_locator.php
@@ -16,7 +16,7 @@ use Symfony\Component\DependencyInjection\ParameterBag\FrozenParameterBag;
  */
 class ProjectServiceContainer extends Container
 {
-    private $parameters;
+    private $parameters = [];
     private $targetDirs = [];
 
     public function __construct()
diff --git a/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_non_shared_lazy.php b/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_non_shared_lazy.php
index 212f12dd24..8536f6c674 100644
--- a/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_non_shared_lazy.php
+++ b/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_non_shared_lazy.php
@@ -16,7 +16,7 @@ use Symfony\Component\DependencyInjection\ParameterBag\FrozenParameterBag;
  */
 class ProjectServiceContainer extends Container
 {
-    private $parameters;
+    private $parameters = [];
     private $targetDirs = [];
 
     public function __construct()
diff --git a/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_non_shared_lazy_as_files.txt b/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_non_shared_lazy_as_files.txt
index 0bd0fa4163..3eece3ef66 100644
--- a/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_non_shared_lazy_as_files.txt
+++ b/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_non_shared_lazy_as_files.txt
@@ -45,7 +45,7 @@ class ProjectServiceContainer extends Container
 {
     private $buildParameters;
     private $containerDir;
-    private $parameters;
+    private $parameters = [];
     private $targetDirs = [];
 
     public function __construct(array $buildParameters = [], $containerDir = __DIR__)
@@ -107,4 +107,4 @@ return new \Container%s\ProjectServiceContainer([
     'container.build_time' => %d,
 ], __DIR__.\DIRECTORY_SEPARATOR.'Container%s');
 
-)
\ No newline at end of file
+)
diff --git a/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_private_frozen.php b/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_private_frozen.php
index f815c0811d..1552201127 100644
--- a/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_private_frozen.php
+++ b/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_private_frozen.php
@@ -16,7 +16,7 @@ use Symfony\Component\DependencyInjection\ParameterBag\FrozenParameterBag;
  */
 class ProjectServiceContainer extends Container
 {
-    private $parameters;
+    private $parameters = [];
     private $targetDirs = [];
 
     public function __construct()
diff --git a/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_private_in_expression.php b/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_private_in_expression.php
index 761d476103..58b0d5b192 100644
--- a/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_private_in_expression.php
+++ b/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_private_in_expression.php
@@ -16,7 +16,7 @@ use Symfony\Component\DependencyInjection\ParameterBag\FrozenParameterBag;
  */
 class ProjectServiceContainer extends Container
 {
-    private $parameters;
+    private $parameters = [];
     private $targetDirs = [];
 
     public function __construct()
diff --git a/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_query_string_env.php b/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_query_string_env.php
index e69a22b129..a357d16a73 100644
--- a/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_query_string_env.php
+++ b/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_query_string_env.php
@@ -16,7 +16,7 @@ use Symfony\Component\DependencyInjection\ParameterBag\FrozenParameterBag;
  */
 class Symfony_DI_PhpDumper_Test_QueryStringParameters extends Container
 {
-    private $parameters;
+    private $parameters = [];
     private $targetDirs = [];
 
     public function __construct()
diff --git a/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_rot13_env.php b/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_rot13_env.php
index 25f43a3f80..7c1a8a7c77 100644
--- a/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_rot13_env.php
+++ b/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_rot13_env.php
@@ -16,7 +16,7 @@ use Symfony\Component\DependencyInjection\ParameterBag\FrozenParameterBag;
  */
 class Symfony_DI_PhpDumper_Test_Rot13Parameters extends Container
 {
-    private $parameters;
+    private $parameters = [];
     private $targetDirs = [];
     private $getService;
 
diff --git a/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_service_locator_argument.php b/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_service_locator_argument.php
index 94b5931ed3..1fbe964dfb 100644
--- a/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_service_locator_argument.php
+++ b/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_service_locator_argument.php
@@ -16,7 +16,7 @@ use Symfony\Component\DependencyInjection\ParameterBag\FrozenParameterBag;
  */
 class Symfony_DI_PhpDumper_Service_Locator_Argument extends Container
 {
-    private $parameters;
+    private $parameters = [];
     private $targetDirs = [];
     private $getService;
 
diff --git a/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_subscriber.php b/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_subscriber.php
index 00f444e0af..b881b676b7 100644
--- a/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_subscriber.php
+++ b/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_subscriber.php
@@ -16,7 +16,7 @@ use Symfony\Component\DependencyInjection\ParameterBag\FrozenParameterBag;
  */
 class ProjectServiceContainer extends Container
 {
-    private $parameters;
+    private $parameters = [];
     private $targetDirs = [];
     private $getService;
 
diff --git a/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_tsantos.php b/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_tsantos.php
index 3aa6ae94a8..d301e88ad5 100644
--- a/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_tsantos.php
+++ b/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_tsantos.php
@@ -16,7 +16,7 @@ use Symfony\Component\DependencyInjection\ParameterBag\FrozenParameterBag;
  */
 class ProjectServiceContainer extends Container
 {
-    private $parameters;
+    private $parameters = [];
     private $targetDirs = [];
 
     public function __construct()
diff --git a/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_uninitialized_ref.php b/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_uninitialized_ref.php
index 47e4b8f634..95fcf89d26 100644
--- a/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_uninitialized_ref.php
+++ b/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_uninitialized_ref.php
@@ -16,7 +16,7 @@ use Symfony\Component\DependencyInjection\ParameterBag\FrozenParameterBag;
  */
 class Symfony_DI_PhpDumper_Test_Uninitialized_Reference extends Container
 {
-    private $parameters;
+    private $parameters = [];
     private $targetDirs = [];
 
     public function __construct()
diff --git a/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_unsupported_characters.php b/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_unsupported_characters.php
index 754d615df6..f6e1a2da5b 100644
--- a/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_unsupported_characters.php
+++ b/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_unsupported_characters.php
@@ -16,7 +16,7 @@ use Symfony\Component\DependencyInjection\ParameterBag\FrozenParameterBag;
  */
 class Symfony_DI_PhpDumper_Test_Unsupported_Characters extends Container
 {
-    private $parameters;
+    private $parameters = [];
     private $targetDirs = [];
 
     public function __construct()
diff --git a/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_url_env.php b/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_url_env.php
index bd0d9105d7..65a31a1962 100644
--- a/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_url_env.php
+++ b/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_url_env.php
@@ -16,7 +16,7 @@ use Symfony\Component\DependencyInjection\ParameterBag\FrozenParameterBag;
  */
 class Symfony_DI_PhpDumper_Test_UrlParameters extends Container
 {
-    private $parameters;
+    private $parameters = [];
     private $targetDirs = [];
 
     public function __construct()
diff --git a/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_wither.php b/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_wither.php
index c8a0d03588..9e28c238db 100644
--- a/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_wither.php
+++ b/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services_wither.php
@@ -16,7 +16,7 @@ use Symfony\Component\DependencyInjection\ParameterBag\FrozenParameterBag;
  */
 class Symfony_DI_PhpDumper_Service_Wither extends Container
 {
-    private $parameters;
+    private $parameters = [];
     private $targetDirs = [];
 
     public function __construct()
diff --git a/src/Symfony/Component/Validator/Resources/translations/validators.fa.xlf b/src/Symfony/Component/Validator/Resources/translations/validators.fa.xlf
index 2cfcbea4b0..c0b42096b5 100644
--- a/src/Symfony/Component/Validator/Resources/translations/validators.fa.xlf
+++ b/src/Symfony/Component/Validator/Resources/translations/validators.fa.xlf
@@ -36,7 +36,7 @@
             </trans-unit>
             <trans-unit id="9">
                 <source>The fields {{ fields }} were not expected.</source>
-                <target>فیلدهای {{ fields }} اضافی هستند.</target>
+                <target>فیلدهای {{ fields }} شامل فیلدهای مورد انتظار نمی باشند.</target>
             </trans-unit>
             <trans-unit id="10">
                 <source>The fields {{ fields }} are missing.</source>
@@ -60,7 +60,7 @@
             </trans-unit>
             <trans-unit id="15">
                 <source>The file is not readable.</source>
-                <target>فایل قابلیت خوانده شدن ندارد.</target>
+                <target>پرونده خواندنی نمی باشد.</target>
             </trans-unit>
             <trans-unit id="16">
                 <source>The file is too large ({{ size }} {{ suffix }}). Allowed maximum size is {{ limit }} {{ suffix }}.</source>
@@ -160,19 +160,19 @@
             </trans-unit>
             <trans-unit id="43">
                 <source>The image width is too big ({{ width }}px). Allowed maximum width is {{ max_width }}px.</source>
-                <target>طول تصویر بسیار بزرگ است ({{ width }}px). بشینه طول مجاز {{ max_width }}px می باشد.</target>
+                <target>طول تصویر بسیار بزرگ است({{ width }}px). بیشینه طول مجاز {{ max_width }}px می باشد.</target>
             </trans-unit>
             <trans-unit id="44">
                 <source>The image width is too small ({{ width }}px). Minimum width expected is {{ min_width }}px.</source>
-                <target>طول تصویر بسیار کوچک است ({{ width }}px). کمینه طول موردنظر {{ min_width }}px می باشد.</target>
+                <target>طول تصویر بسیار کوچک است({{ width }}px). کمینه طول موردنظر {{ min_width }}px می باشد.</target>
             </trans-unit>
             <trans-unit id="45">
                 <source>The image height is too big ({{ height }}px). Allowed maximum height is {{ max_height }}px.</source>
-                <target>ارتفاع تصویر بسیار بزرگ است ({{ height }}px). بشینه ارتفاع مجاز {{ max_height }}px می باشد.</target>
+                <target>ارتفاع تصویر بسیار بزرگ است({{ height }}px). بیشینه ارتفاع مجاز {{ max_height }}px می باشد.</target>
             </trans-unit>
             <trans-unit id="46">
                 <source>The image height is too small ({{ height }}px). Minimum height expected is {{ min_height }}px.</source>
-                <target>ارتفاع تصویر بسیار کوچک است ({{ height }}px). کمینه ارتفاع موردنظر {{ min_height }}px می باشد.</target>
+                <target>ارتفاع تصویر بسیار کوچک است({{ height }}px). کمینه ارتفاع موردنظر {{ min_height }}px می باشد.</target>
             </trans-unit>
             <trans-unit id="47">
                 <source>This value should be the user's current password.</source>
@@ -192,7 +192,7 @@
             </trans-unit>
             <trans-unit id="51">
                 <source>No temporary folder was configured in php.ini.</source>
-                <target>فولدر موقت در php.ini پیکربندی نگردیده است.</target>
+                <target>پوشه موقتی در php.ini پیکربندی نگردیده است.</target>
             </trans-unit>
             <trans-unit id="52">
                 <source>Cannot write temporary file to disk.</source>
@@ -224,7 +224,7 @@
             </trans-unit>
             <trans-unit id="59">
                 <source>This is not a valid International Bank Account Number (IBAN).</source>
-                <target>این یک شماره حساب بانک بین المللی معتبر نمی باشد (IBAN).</target>
+                <target>این یک شماره حساب بانک بین المللی معتبر نمی باشد(IBAN).</target>
             </trans-unit>
             <trans-unit id="60">
                 <source>This value is not a valid ISBN-10.</source>
@@ -280,23 +280,23 @@
             </trans-unit>
             <trans-unit id="73">
                 <source>The image ratio is too big ({{ ratio }}). Allowed maximum ratio is {{ max_ratio }}.</source>
-                <target>ابعاد {{ ratio }} عکس بیش از حد بزرگ است.حداکثر ابعاد مجاز {{ max_ratio }} می باشد.</target>
+                <target>ابعاد({{ ratio }}) عکس بیش از حد بزرگ است.حداکثر ابعاد مجاز {{ max_ratio }} می باشد.</target>
             </trans-unit>
             <trans-unit id="74">
                 <source>The image ratio is too small ({{ ratio }}). Minimum ratio expected is {{ min_ratio }}.</source>
-                <target>ابعاد {{ ratio }} عکس بیش از حد کوچک است.حداقل ابعاد مجاز {{ min_ratio }} می باشد.</target>
+                <target>ابعاد({{ ratio }}) عکس بیش از حد کوچک است.حداقل ابعاد مجاز {{ min_ratio }} می باشد.</target>
             </trans-unit>
             <trans-unit id="75">
                 <source>The image is square ({{ width }}x{{ height }}px). Square images are not allowed.</source>
-                <target>این تصویر یک مربع width }}x{{ height }}px}} می باشد.تصویر مربع مجاز نمی باشد.</target>
+                <target>این تصویر یک مربع({{ width }}x{{ height }}px) می باشد. تصویر مربع مجاز نمی باشد.</target>
             </trans-unit>
             <trans-unit id="76">
                 <source>The image is landscape oriented ({{ width }}x{{ height }}px). Landscape oriented images are not allowed.</source>
-                <target>این تصویر افقی width }}x{{ height }}px}} می باشد.تصویر افقی مجاز نمی باشد.</target>
+                <target>این تصویر افقی({{ width }}x{{ height }}px) می باشد. تصویر افقی مجاز نمی باشد.</target>
             </trans-unit>
             <trans-unit id="77">
                 <source>The image is portrait oriented ({{ width }}x{{ height }}px). Portrait oriented images are not allowed.</source>
-                <target>این تصویر عمودی width }}x{{ height }}px}} می باشد.تصویر عمودی مجاز نمی باشد.</target>
+                <target>این تصویر عمودی({{ width }}x{{ height }}px) می باشد. تصویر عمودی مجاز نمی باشد.</target>
             </trans-unit>
             <trans-unit id="78">
                 <source>An empty file is not allowed.</source>
@@ -312,7 +312,7 @@
             </trans-unit>
             <trans-unit id="81">
                 <source>This is not a valid Business Identifier Code (BIC).</source>
-                <target>این مقدار یک BIC معتبر نمی باشد.</target>
+                <target>این مقدار یک(BIC) معتبر نمی باشد.</target>
             </trans-unit>
             <trans-unit id="82">
                 <source>Error</source>
@@ -328,7 +328,7 @@
             </trans-unit>
             <trans-unit id="85">
                 <source>This Business Identifier Code (BIC) is not associated with IBAN {{ iban }}.</source>
-                <target>این BIC با IBAN ارتباطی ندارد.</target>
+                <target>این(BIC) با IBAN ارتباطی ندارد.</target>
             </trans-unit>
         </body>
     </file>