5 files changed, 8 insertions, 8 deletions
diff --git a/lib/private/Files/ObjectStore/Azure.php b/lib/private/Files/ObjectStore/Azure.php
index 553f593b299..c4a349294ec 100644
--- a/lib/private/Files/ObjectStore/Azure.php
+++ b/lib/private/Files/ObjectStore/Azure.php
@@ -100,7 +100,7 @@ class Azure implements IObjectStore {
 		return $blob->getContentStream();
 	}
 
-	public function writeObject($urn, $stream, string $mimetype = null) {
+	public function writeObject($urn, $stream, ?string $mimetype = null) {
 		$options = new CreateBlockBlobOptions();
 		if ($mimetype) {
 			$options->setContentType($mimetype);
diff --git a/lib/private/Files/ObjectStore/ObjectStoreStorage.php b/lib/private/Files/ObjectStore/ObjectStoreStorage.php
index 7eb284fc774..ef4d2f7ca13 100644
--- a/lib/private/Files/ObjectStore/ObjectStoreStorage.php
+++ b/lib/private/Files/ObjectStore/ObjectStoreStorage.php
@@ -494,7 +494,7 @@ class ObjectStoreStorage extends \OC\Files\Storage\Common implements IChunkedFil
 		return $result;
 	}
 
-	public function writeStream(string $path, $stream, int $size = null): int {
+	public function writeStream(string $path, $stream, ?int $size = null): int {
 		$stat = $this->stat($path);
 		if (empty($stat)) {
 			// create new file
diff --git a/lib/private/Files/ObjectStore/S3ObjectTrait.php b/lib/private/Files/ObjectStore/S3ObjectTrait.php
index e0a94df1d99..b7ec047850b 100644
--- a/lib/private/Files/ObjectStore/S3ObjectTrait.php
+++ b/lib/private/Files/ObjectStore/S3ObjectTrait.php
@@ -106,7 +106,7 @@ trait S3ObjectTrait {
 	 * @param string|null $mimetype the mimetype to set for the remove object @since 22.0.0
 	 * @throws \Exception when something goes wrong, message will be logged
 	 */
-	protected function writeSingle(string $urn, StreamInterface $stream, string $mimetype = null): void {
+	protected function writeSingle(string $urn, StreamInterface $stream, ?string $mimetype = null): void {
 		$this->getConnection()->putObject([
 			'Bucket' => $this->bucket,
 			'Key' => $urn,
@@ -126,7 +126,7 @@ trait S3ObjectTrait {
 	 * @param string|null $mimetype the mimetype to set for the remove object
 	 * @throws \Exception when something goes wrong, message will be logged
 	 */
-	protected function writeMultiPart(string $urn, StreamInterface $stream, string $mimetype = null): void {
+	protected function writeMultiPart(string $urn, StreamInterface $stream, ?string $mimetype = null): void {
 		$uploader = new MultipartUploader($this->getConnection(), $stream, [
 			'bucket' => $this->bucket,
 			'concurrency' => $this->concurrency,
@@ -159,7 +159,7 @@ trait S3ObjectTrait {
 	 * @throws \Exception when something goes wrong, message will be logged
 	 * @since 7.0.0
 	 */
-	public function writeObject($urn, $stream, string $mimetype = null) {
+	public function writeObject($urn, $stream, ?string $mimetype = null) {
 		$psrStream = Utils::streamFor($stream);
 
 		// ($psrStream->isSeekable() && $psrStream->getSize() !== null) evaluates to true for a On-Seekable stream
diff --git a/lib/private/Files/ObjectStore/StorageObjectStore.php b/lib/private/Files/ObjectStore/StorageObjectStore.php
index 85926be897e..d968adb3c29 100644
--- a/lib/private/Files/ObjectStore/StorageObjectStore.php
+++ b/lib/private/Files/ObjectStore/StorageObjectStore.php
@@ -64,7 +64,7 @@ class StorageObjectStore implements IObjectStore {
 		throw new \Exception();
 	}
 
-	public function writeObject($urn, $stream, string $mimetype = null) {
+	public function writeObject($urn, $stream, ?string $mimetype = null) {
 		$handle = $this->storage->fopen($urn, 'w');
 		if ($handle) {
 			stream_copy_to_stream($stream, $handle);
diff --git a/lib/private/Files/ObjectStore/Swift.php b/lib/private/Files/ObjectStore/Swift.php
index b463cb9d44d..68618f136b2 100644
--- a/lib/private/Files/ObjectStore/Swift.php
+++ b/lib/private/Files/ObjectStore/Swift.php
@@ -45,7 +45,7 @@ class Swift implements IObjectStore {
 	/** @var SwiftFactory */
 	private $swiftFactory;
 
-	public function __construct($params, SwiftFactory $connectionFactory = null) {
+	public function __construct($params, ?SwiftFactory $connectionFactory = null) {
 		$this->swiftFactory = $connectionFactory ?: new SwiftFactory(
 			\OC::$server->getMemCacheFactory()->createDistributed('swift::'),
 			$params,
@@ -74,7 +74,7 @@ class Swift implements IObjectStore {
 		return $this->params['container'];
 	}
 
-	public function writeObject($urn, $stream, string $mimetype = null) {
+	public function writeObject($urn, $stream, ?string $mimetype = null) {
 		$tmpFile = \OC::$server->getTempManager()->getTemporaryFile('swiftwrite');
 		file_put_contents($tmpFile, $stream);
 		$handle = fopen($tmpFile, 'rb');