diff --git a/src/Symfony/Component/Serializer/Normalizer/DateTimeNormalizer.php b/src/Symfony/Component/Serializer/Normalizer/DateTimeNormalizer.php
index ff121deb807a2..f789011329546 100644
--- a/src/Symfony/Component/Serializer/Normalizer/DateTimeNormalizer.php
+++ b/src/Symfony/Component/Serializer/Normalizer/DateTimeNormalizer.php
@@ -67,6 +67,10 @@ public function denormalize($data, $class, $format = null, array $context = arra
{
$dateTimeFormat = isset($context[self::FORMAT_KEY]) ? $context[self::FORMAT_KEY] : null;
+ if ('' === $data || null === $data) {
+ throw new UnexpectedValueException('The data is either an empty string or null, you should pass a string that can be parsed with the passed format or a valid DateTime string.');
+ }
+
if (null !== $dateTimeFormat) {
$object = \DateTime::class === $class ? \DateTime::createFromFormat($dateTimeFormat, $data) : \DateTimeImmutable::createFromFormat($dateTimeFormat, $data);
diff --git a/src/Symfony/Component/Serializer/Tests/Normalizer/DateTimeNormalizerTest.php b/src/Symfony/Component/Serializer/Tests/Normalizer/DateTimeNormalizerTest.php
index 6d622bbcc0e05..73d277b190832 100644
--- a/src/Symfony/Component/Serializer/Tests/Normalizer/DateTimeNormalizerTest.php
+++ b/src/Symfony/Component/Serializer/Tests/Normalizer/DateTimeNormalizerTest.php
@@ -91,6 +91,24 @@ public function testDenormalizeInvalidDataThrowsException()
$this->normalizer->denormalize('invalid date', \DateTimeInterface::class);
}
+ /**
+ * @expectedException \Symfony\Component\Serializer\Exception\UnexpectedValueException
+ * @expectedExceptionMessage The data is either an empty string or null, you should pass a string that can be parsed with the passed format or a valid DateTime string.
+ */
+ public function testDenormalizeNullThrowsException()
+ {
+ $this->normalizer->denormalize(null, \DateTimeInterface::class);
+ }
+
+ /**
+ * @expectedException \Symfony\Component\Serializer\Exception\UnexpectedValueException
+ * @expectedExceptionMessage The data is either an empty string or null, you should pass a string that can be parsed with the passed format or a valid DateTime string.
+ */
+ public function testDenormalizeEmptyStringThrowsException()
+ {
+ $this->normalizer->denormalize('', \DateTimeInterface::class);
+ }
+
/**
* @expectedException \Symfony\Component\Serializer\Exception\UnexpectedValueException
*/
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