diff --git a/apps/files_sharing/tests/api.php b/apps/files_sharing/tests/api.php
index c55c186f089a92787df0b21129307b4e8e640971..63df0dd7dc3932db6cf10b24e59cdce9b1340873 100644
--- a/apps/files_sharing/tests/api.php
+++ b/apps/files_sharing/tests/api.php
@@ -295,7 +295,8 @@ class Test_Files_Sharing_Api extends \PHPUnit_Framework_TestCase {
 		$result = Share\Api::getShare($params);
 
 		$this->assertEquals(404, $result->getStatusCode());
-		$this->assertEquals('share doesn\'t exist', $result->getMeta()['message']);
+        $meta = $result->getMeta();
+		$this->assertEquals('share doesn\'t exist', $meta['message']);
 
 	}
 
@@ -351,7 +352,8 @@ class Test_Files_Sharing_Api extends \PHPUnit_Framework_TestCase {
 
 		$result = Share\Api::updateShare($params);
 
-		$this->assertTrue($result->succeeded(), $result->getMeta()['message']);
+        $meta = $result->getMeta();
+		$this->assertTrue($result->succeeded(), $meta['message']);
 
 		$items = \OCP\Share::getItemShared('file', $userShare['file_source']);
 
diff --git a/lib/private/appframework/dependencyinjection/dicontainer.php b/lib/private/appframework/dependencyinjection/dicontainer.php
index 3755d45fa092dd1b44f8dfc62f9f3eafee23c536..e62b72fd9734286c8ae1e07aa1e58f4819ca0010 100644
--- a/lib/private/appframework/dependencyinjection/dicontainer.php
+++ b/lib/private/appframework/dependencyinjection/dicontainer.php
@@ -89,11 +89,12 @@ class DIContainer extends SimpleContainer implements IAppContainer{
 			return new SecurityMiddleware($c['API'], $c['Request']);
 		});
 
-		$this['MiddlewareDispatcher'] = $this->share(function($c){
+        $middleWares = $this->middleWares;
+		$this['MiddlewareDispatcher'] = $this->share(function($c) use ($middleWares) {
 			$dispatcher = new MiddlewareDispatcher();
 			$dispatcher->registerMiddleware($c['SecurityMiddleware']);
 
-			foreach($this->middleWares as $middleWare) {
+			foreach($middleWares as $middleWare) {
 				$dispatcher->registerMiddleware($middleWare);
 			}
 
diff --git a/lib/private/files/storage/storage.php b/lib/private/files/storage/storage.php
index b673bb9a32d0dd5ff624cb87a7a83807cf7d700a..5be90f24756d10aea7bb376c4c192b71c665e509 100644
--- a/lib/private/files/storage/storage.php
+++ b/lib/private/files/storage/storage.php
@@ -14,278 +14,6 @@ namespace OC\Files\Storage;
  * All paths passed to the storage are relative to the storage and should NOT have a leading slash.
  */
 interface Storage extends \OCP\Files\Storage {
-	/**
-	 * $parameters is a free form array with the configuration options needed to construct the storage
-	 *
-	 * @param array $parameters
-	 */
-	public function __construct($parameters);
-
-	/**
-	 * Get the identifier for the storage,
-	 * the returned id should be the same for every storage object that is created with the same parameters
-	 * and two storage objects with the same id should refer to two storages that display the same files.
-	 *
-	 * @return string
-	 */
-	public function getId();
-
-	/**
-	 * see http://php.net/manual/en/function.mkdir.php
-	 *
-	 * @param string $path
-	 * @return bool
-	 */
-	public function mkdir($path);
-
-	/**
-	 * see http://php.net/manual/en/function.rmdir.php
-	 *
-	 * @param string $path
-	 * @return bool
-	 */
-	public function rmdir($path);
-
-	/**
-	 * see http://php.net/manual/en/function.opendir.php
-	 *
-	 * @param string $path
-	 * @return resource
-	 */
-	public function opendir($path);
-
-	/**
-	 * see http://php.net/manual/en/function.is_dir.php
-	 *
-	 * @param string $path
-	 * @return bool
-	 */
-	public function is_dir($path);
-
-	/**
-	 * see http://php.net/manual/en/function.is_file.php
-	 *
-	 * @param string $path
-	 * @return bool
-	 */
-	public function is_file($path);
-
-	/**
-	 * see http://php.net/manual/en/function.stat.php
-	 * only the following keys are required in the result: size and mtime
-	 *
-	 * @param string $path
-	 * @return array
-	 */
-	public function stat($path);
-
-	/**
-	 * see http://php.net/manual/en/function.filetype.php
-	 *
-	 * @param string $path
-	 * @return bool
-	 */
-	public function filetype($path);
-
-	/**
-	 * see http://php.net/manual/en/function.filesize.php
-	 * The result for filesize when called on a folder is required to be 0
-	 *
-	 * @param string $path
-	 * @return int
-	 */
-	public function filesize($path);
-
-	/**
-	 * check if a file can be created in $path
-	 *
-	 * @param string $path
-	 * @return bool
-	 */
-	public function isCreatable($path);
-
-	/**
-	 * check if a file can be read
-	 *
-	 * @param string $path
-	 * @return bool
-	 */
-	public function isReadable($path);
-
-	/**
-	 * check if a file can be written to
-	 *
-	 * @param string $path
-	 * @return bool
-	 */
-	public function isUpdatable($path);
-
-	/**
-	 * check if a file can be deleted
-	 *
-	 * @param string $path
-	 * @return bool
-	 */
-	public function isDeletable($path);
-
-	/**
-	 * check if a file can be shared
-	 *
-	 * @param string $path
-	 * @return bool
-	 */
-	public function isSharable($path);
-
-	/**
-	 * get the full permissions of a path.
-	 * Should return a combination of the PERMISSION_ constants defined in lib/public/constants.php
-	 *
-	 * @param string $path
-	 * @return int
-	 */
-	public function getPermissions($path);
-
-	/**
-	 * see http://php.net/manual/en/function.file_exists.php
-	 *
-	 * @param string $path
-	 * @return bool
-	 */
-	public function file_exists($path);
-
-	/**
-	 * see http://php.net/manual/en/function.filemtime.php
-	 *
-	 * @param string $path
-	 * @return int
-	 */
-	public function filemtime($path);
-
-	/**
-	 * see http://php.net/manual/en/function.file_get_contents.php
-	 *
-	 * @param string $path
-	 * @return string
-	 */
-	public function file_get_contents($path);
-
-	/**
-	 * see http://php.net/manual/en/function.file_put_contents.php
-	 *
-	 * @param string $path
-	 * @param string $data
-	 * @return bool
-	 */
-	public function file_put_contents($path, $data);
-
-	/**
-	 * see http://php.net/manual/en/function.unlink.php
-	 *
-	 * @param string $path
-	 * @return bool
-	 */
-	public function unlink($path);
-
-	/**
-	 * see http://php.net/manual/en/function.rename.php
-	 *
-	 * @param string $path1
-	 * @param string $path2
-	 * @return bool
-	 */
-	public function rename($path1, $path2);
-
-	/**
-	 * see http://php.net/manual/en/function.copy.php
-	 *
-	 * @param string $path1
-	 * @param string $path2
-	 * @return bool
-	 */
-	public function copy($path1, $path2);
-
-	/**
-	 * see http://php.net/manual/en/function.fopen.php
-	 *
-	 * @param string $path
-	 * @param string $mode
-	 * @return resource
-	 */
-	public function fopen($path, $mode);
-
-	/**
-	 * get the mimetype for a file or folder
-	 * The mimetype for a folder is required to be "httpd/unix-directory"
-	 *
-	 * @param string $path
-	 * @return string
-	 */
-	public function getMimeType($path);
-
-	/**
-	 * see http://php.net/manual/en/function.hash.php
-	 *
-	 * @param string $type
-	 * @param string $path
-	 * @param bool $raw
-	 * @return string
-	 */
-	public function hash($type, $path, $raw = false);
-
-	/**
-	 * see http://php.net/manual/en/function.free_space.php
-	 *
-	 * @param string $path
-	 * @return int
-	 */
-	public function free_space($path);
-
-	/**
-	 * search for occurrences of $query in file names
-	 *
-	 * @param string $query
-	 * @return array
-	 */
-	public function search($query);
-
-	/**
-	 * see http://php.net/manual/en/function.touch.php
-	 * If the backend does not support the operation, false should be returned
-	 *
-	 * @param string $path
-	 * @param int $mtime
-	 * @return bool
-	 */
-	public function touch($path, $mtime = null);
-
-	/**
-	 * get the path to a local version of the file.
-	 * The local version of the file can be temporary and doesn't have to be persistent across requests
-	 *
-	 * @param string $path
-	 * @return string
-	 */
-	public function getLocalFile($path);
-
-	/**
-	 * get the path to a local version of the folder.
-	 * The local version of the folder can be temporary and doesn't have to be persistent across requests
-	 *
-	 * @param string $path
-	 * @return string
-	 */
-	public function getLocalFolder($path);
-	/**
-	 * check if a file or folder has been updated since $time
-	 *
-	 * @param string $path
-	 * @param int $time
-	 * @return bool
-	 *
-	 * hasUpdated for folders should return at least true if a file inside the folder is add, removed or renamed.
-	 * returning true for other changes in the folder is optional
-	 */
-	public function hasUpdated($path, $time);
 
 	/**
 	 * get a cache instance for the storage
@@ -333,11 +61,4 @@ interface Storage extends \OCP\Files\Storage {
 	 */
 	public function getStorageCache();
 
-	/**
-	 * get the ETag for a file or folder
-	 *
-	 * @param string $path
-	 * @return string
-	 */
-	public function getETag($path);
 }
diff --git a/lib/private/session/session.php b/lib/private/session/session.php
index c55001eccaca570e9381679646be0526855580ee..fe160faa2679196079ced3e74490ba9fc4247dc6 100644
--- a/lib/private/session/session.php
+++ b/lib/private/session/session.php
@@ -8,7 +8,10 @@
 
 namespace OC\Session;
 
-abstract class Session implements \ArrayAccess, \OCP\ISession {
+use OCP\ISession;
+
+abstract class Session implements \ArrayAccess, ISession {
+
 	/**
 	 * $name serves as a namespace for the session keys
 	 *
@@ -16,36 +19,6 @@ abstract class Session implements \ArrayAccess, \OCP\ISession {
 	 */
 	abstract public function __construct($name);
 
-	/**
-	 * @param string $key
-	 * @param mixed $value
-	 */
-	abstract public function set($key, $value);
-
-	/**
-	 * @param string $key
-	 * @return mixed should return null if $key does not exist
-	 */
-	abstract public function get($key);
-
-	/**
-	 * @param string $key
-	 * @return bool
-	 */
-	abstract public function exists($key);
-
-	/**
-	 * should not throw any errors if $key does not exist
-	 *
-	 * @param string $key
-	 */
-	abstract public function remove($key);
-
-	/**
-	 * removes all entries within the cache namespace
-	 */
-	abstract public function clear();
-
 	/**
 	 * @param mixed $offset
 	 * @return bool