diff --git a/apps/dav/tests/integration/UserMigration/CalendarMigratorTest.php b/apps/dav/tests/integration/UserMigration/CalendarMigratorTest.php
index d866f264ce485..6fe00aae72284 100644
--- a/apps/dav/tests/integration/UserMigration/CalendarMigratorTest.php
+++ b/apps/dav/tests/integration/UserMigration/CalendarMigratorTest.php
@@ -238,14 +238,14 @@ public function testExport(): void {
 			$exportedData = null;
 
 			$exportDestination->method('addFileContents')
-				->willReturnCallback(function (string $path, string $content) use (&$exportedCalendarsJson) {
+				->willReturnCallback(function (string $path, string $content) use (&$exportedCalendarsJson): void {
 					if ($path === 'dav/calendars/calendars.json') {
 						$exportedCalendarsJson = json_decode($content, true);
 					}
 				});
 
 			$exportDestination->method('addFileAsStream')
-				->willReturnCallback(function (string $path, $stream) use (&$exportedData) {
+				->willReturnCallback(function (string $path, $stream) use (&$exportedData): void {
 					if (str_ends_with($path, '.data')) {
 						$exportedData = stream_get_contents($stream);
 					}
@@ -296,11 +296,11 @@ public function testExportImportRoundTrip(): void {
 
 			$exportDestination = $this->createMock(IExportDestination::class);
 			$exportDestination->method('addFileContents')
-				->willReturnCallback(function (string $path, string $content) use (&$exportedFiles) {
+				->willReturnCallback(function (string $path, string $content) use (&$exportedFiles): void {
 					$exportedFiles[$path] = $content;
 				});
 			$exportDestination->method('addFileAsStream')
-				->willReturnCallback(function (string $path, $stream) use (&$exportedFiles) {
+				->willReturnCallback(function (string $path, $stream) use (&$exportedFiles): void {
 					$exportedFiles[$path] = stream_get_contents($stream);
 				});
 
@@ -469,7 +469,7 @@ public function testExportSubscriptions(): void {
 			$exportedSubscriptionsJson = null;
 
 			$exportDestination->method('addFileContents')
-				->willReturnCallback(function (string $path, string $content) use (&$exportedSubscriptionsJson) {
+				->willReturnCallback(function (string $path, string $content) use (&$exportedSubscriptionsJson): void {
 					if ($path === 'dav/calendars/subscriptions.json') {
 						$exportedSubscriptionsJson = json_decode($content, true);
 					}
@@ -578,7 +578,7 @@ public function testExportImportSubscriptionsRoundTrip(): void {
 
 			$exportDestination = $this->createMock(IExportDestination::class);
 			$exportDestination->method('addFileContents')
-				->willReturnCallback(function (string $path, string $content) use (&$exportedFiles) {
+				->willReturnCallback(function (string $path, string $content) use (&$exportedFiles): void {
 					$exportedFiles[$path] = $content;
 				});
 
diff --git a/apps/files_sharing/lib/SharedStorage.php b/apps/files_sharing/lib/SharedStorage.php
index be8cb48487cf4..9d6ca56a11d3e 100644
--- a/apps/files_sharing/lib/SharedStorage.php
+++ b/apps/files_sharing/lib/SharedStorage.php
@@ -468,7 +468,7 @@ public function getWatcher(string $path = '', ?IStorage $storage = null): IWatch
 	 */
 	public function unshareStorage(): bool {
 		foreach ($this->groupedShares as $share) {
-			Server::get(\OCP\Share\IManager::class)->deleteFromSelf($share, $this->user);
+			Server::get(IShareManager::class)->deleteFromSelf($share, $this->user);
 		}
 		return true;
 	}
diff --git a/build/integration/features/bootstrap/FeatureContext.php b/build/integration/features/bootstrap/FeatureContext.php
index 3430a9ac5714a..c8ef1143574b6 100644
--- a/build/integration/features/bootstrap/FeatureContext.php
+++ b/build/integration/features/bootstrap/FeatureContext.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.