4 files changed, 5 insertions, 19 deletions
diff --git a/MediaBrowser.Model/IO/FileSystemMetadata.cs b/MediaBrowser.Model/IO/FileSystemMetadata.cs
index 118c78e80..fb74886bf 100644
--- a/MediaBrowser.Model/IO/FileSystemMetadata.cs
+++ b/MediaBrowser.Model/IO/FileSystemMetadata.cs
@@ -38,12 +38,6 @@ namespace MediaBrowser.Model.IO
         public long Length { get; set; }
 
         /// <summary>
-        /// Gets or sets the name of the directory.
-        /// </summary>
-        /// <value>The name of the directory.</value>
-        public string DirectoryName { get; set; }
-
-        /// <summary>
         /// Gets or sets the last write time UTC.
         /// </summary>
         /// <value>The last write time UTC.</value>
diff --git a/MediaBrowser.Model/IO/IFileSystem.cs b/MediaBrowser.Model/IO/IFileSystem.cs
index ef08ecec6..be4f1e16b 100644
--- a/MediaBrowser.Model/IO/IFileSystem.cs
+++ b/MediaBrowser.Model/IO/IFileSystem.cs
@@ -1,4 +1,3 @@
-#nullable disable
 #pragma warning disable CS1591
 
 using System;
@@ -25,7 +24,7 @@ namespace MediaBrowser.Model.IO
         /// </summary>
         /// <param name="filename">The filename.</param>
         /// <returns>System.String.</returns>
-        string ResolveShortcut(string filename);
+        string? ResolveShortcut(string filename);
 
         /// <summary>
         /// Creates the shortcut.
@@ -118,13 +117,6 @@ namespace MediaBrowser.Model.IO
         bool ContainsSubPath(string parentPath, string path);
 
         /// <summary>
-        /// Determines whether [is root path] [the specified path].
-        /// </summary>
-        /// <param name="path">The path.</param>
-        /// <returns><c>true</c> if [is root path] [the specified path]; otherwise, <c>false</c>.</returns>
-        bool IsRootPath(string path);
-
-        /// <summary>
         /// Normalizes the path.
         /// </summary>
         /// <param name="path">The path.</param>
@@ -167,7 +159,7 @@ namespace MediaBrowser.Model.IO
         /// <returns>All found files.</returns>
         IEnumerable<FileSystemMetadata> GetFiles(string path, bool recursive = false);
 
-        IEnumerable<FileSystemMetadata> GetFiles(string path, IReadOnlyList<string> extensions, bool enableCaseSensitiveExtensions, bool recursive);
+        IEnumerable<FileSystemMetadata> GetFiles(string path, IReadOnlyList<string>? extensions, bool enableCaseSensitiveExtensions, bool recursive);
 
         /// <summary>
         /// Gets the file system entries.
@@ -193,7 +185,7 @@ namespace MediaBrowser.Model.IO
         /// <returns>IEnumerable&lt;System.String&gt;.</returns>
         IEnumerable<string> GetFilePaths(string path, bool recursive = false);
 
-        IEnumerable<string> GetFilePaths(string path, string[] extensions, bool enableCaseSensitiveExtensions, bool recursive);
+        IEnumerable<string> GetFilePaths(string path, string[]? extensions, bool enableCaseSensitiveExtensions, bool recursive);
 
         /// <summary>
         /// Gets the file system entry paths.
diff --git a/MediaBrowser.Model/IO/IShortcutHandler.cs b/MediaBrowser.Model/IO/IShortcutHandler.cs
index 14d5c4b62..2c364a962 100644
--- a/MediaBrowser.Model/IO/IShortcutHandler.cs
+++ b/MediaBrowser.Model/IO/IShortcutHandler.cs
@@ -15,7 +15,7 @@ namespace MediaBrowser.Model.IO
         /// </summary>
         /// <param name="shortcutPath">The shortcut path.</param>
         /// <returns>System.String.</returns>
-        string Resolve(string shortcutPath);
+        string? Resolve(string shortcutPath);
 
         /// <summary>
         /// Creates the specified shortcut path.
diff --git a/MediaBrowser.Model/IO/IStreamHelper.cs b/MediaBrowser.Model/IO/IStreamHelper.cs
index 0e09db16e..f900da556 100644
--- a/MediaBrowser.Model/IO/IStreamHelper.cs
+++ b/MediaBrowser.Model/IO/IStreamHelper.cs
@@ -9,7 +9,7 @@ namespace MediaBrowser.Model.IO
 {
     public interface IStreamHelper
     {
-        Task CopyToAsync(Stream source, Stream destination, int bufferSize, Action onStarted, CancellationToken cancellationToken);
+        Task CopyToAsync(Stream source, Stream destination, int bufferSize, Action? onStarted, CancellationToken cancellationToken);
 
         Task CopyToAsync(Stream source, Stream destination, int bufferSize, int emptyReadLimit, CancellationToken cancellationToken);