symfony
diff --git a/‎src/Symfony/Component/Serializer/CHANGELOG.md
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diff --git a/‎src/Symfony/Component/Serializer/Normalizer/AbstractNormalizer.php
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diff --git a/‎src/Symfony/Component/Serializer/Tests/Normalizer/ObjectNormalizerTest.php
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+17Lines changed: 17 additions & 0 deletions b/‎src/Symfony/Component/Serializer/Tests/Normalizer/ObjectNormalizerTest.php
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@@ -6,6 +6,8 @@ CHANGELOG
 
 * added `MissingConstructorArgumentsException` new exception for deserialization failure
   of objects that needs data insertion in constructor
+* added an optional `default_constructor_arguments` option of context to specify a default data in
+  case the object is not initializable by its constructor because of data missing
 
 4.0.0
 -----
 
@@ -37,6 +37,7 @@ abstract class AbstractNormalizer implements NormalizerInterface, DenormalizerIn
     const GROUPS = 'groups';
     const ATTRIBUTES = 'attributes';
     const ALLOW_EXTRA_ATTRIBUTES = 'allow_extra_attributes';
+    const DEFAULT_CONSTRUCTOR_ARGUMENTS = 'default_constructor_arguments';
 
     /**
      * @var int
@@ -355,6 +356,8 @@ protected function instantiateObject(array &$data, $class, array &$context, \Ref
                     // Don't run set for a parameter passed to the constructor
                     $params[] = $parameterData;
                     unset($data[$key]);
+                } elseif (isset($context[static::DEFAULT_CONSTRUCTOR_ARGUMENTS][$class][$key])) {
+                    $params[] = $context[static::DEFAULT_CONSTRUCTOR_ARGUMENTS][$class][$key];
                 } elseif ($constructorParameter->isDefaultValueAvailable()) {
                     $params[] = $constructorParameter->getDefaultValue();
                 } else {
 
@@ -218,6 +218,23 @@ public function testConstructorWithMissingData()
         $normalizer->denormalize($data, DummyValueObject::class);
     }
 
+    public function testFillWithEmptyDataWhenMissingData()
+    {
+        $data = array(
+            'foo' => 10,
+        );
+
+        $normalizer = new ObjectNormalizer();
+
+        $result = $normalizer->denormalize($data, DummyValueObject::class, 'json', array(
+            'default_constructor_arguments' => array(
+                DummyValueObject::class => array('foo' => '', 'bar' => ''),
+            ),
+        ));
+
+        $this->assertEquals(new DummyValueObject(10, ''), $result);
+    }
+
     public function testGroupsNormalize()
     {
         $classMetadataFactory = new ClassMetadataFactory(new AnnotationLoader(new AnnotationReader()));