Fix type hinting

apps/dav/lib/DAV/Sharing/Xml/Invite.php

@@ -50,7 +50,7 @@ class Invite implements XmlSerializable {
 	 * The organizer contains information about the person who shared the
 	 * object.
 	 *
-	 * @var array
+	 * @var array|null
 	 */
 	protected $organizer;
 

apps/dav/lib/Files/CustomPropertiesBackend.php

@@ -58,7 +58,7 @@ class CustomPropertiesBackend implements BackendInterface {
 	private $connection;
 
 	/**
-	 * @var IUser
+	 * @var string
 	 */
 	private $user;
 

apps/files_external/lib/Lib/Storage/SFTP.php

@@ -49,8 +49,8 @@ class SFTP extends \OC\Files\Storage\Common {
 	private $auth;
 
 	/**
-	* @var SFTP
-	*/
+	 * @var \phpseclib\Net\SFTP
+	 */
 	protected $client;
 
 	/**

apps/files_external/lib/Lib/Storage/SMB.php

@@ -221,7 +221,7 @@ class SMB extends \OC\Files\Storage\Common {
 	/**
 	 * @param string $path
 	 * @param string $mode
-	 * @return resource
+	 * @return resource|false
 	 */
 	public function fopen($path, $mode) {
 		$fullPath = $this->buildPath($path);

apps/files_sharing/lib/Migration.php

@@ -24,6 +24,7 @@
 namespace OCA\Files_Sharing;
 
 use Doctrine\DBAL\Connection;
+use OCP\ICache;
 use OCP\IDBConnection;
 use OC\Cache\CappedMemoryCache;
 
@@ -38,7 +39,7 @@ class Migration {
 	/** @var IDBConnection */
 	private $connection;
 
-	/** @var  array with all shares we already saw */
+	/** @var  ICache with all shares we already saw */
 	private $shareCache;
 
 	/** @var string */