Using [NotNull] from common repo package

src/Microsoft.AspNet.StaticFiles/DefaultFilesExtensions.cs

@@ -3,6 +3,7 @@
 
 using Microsoft.AspNet.Http;
 using Microsoft.AspNet.StaticFiles;
+using Microsoft.Framework.Internal;
 
 namespace Microsoft.AspNet.Builder
 {

src/Microsoft.AspNet.StaticFiles/DefaultFilesMiddleware.cs

@@ -5,6 +5,7 @@ using System.Threading.Tasks;
 using Microsoft.AspNet.Builder;
 using Microsoft.AspNet.Hosting;
 using Microsoft.AspNet.Http;
+using Microsoft.Framework.Internal;
 using Microsoft.Net.Http.Headers;
 
 namespace Microsoft.AspNet.StaticFiles

src/Microsoft.AspNet.StaticFiles/DirectoryBrowserExtensions.cs

@@ -3,6 +3,7 @@
 
 using Microsoft.AspNet.Http;
 using Microsoft.AspNet.StaticFiles;
+using Microsoft.Framework.Internal;
 
 namespace Microsoft.AspNet.Builder
 {

src/Microsoft.AspNet.StaticFiles/DirectoryBrowserMiddleware.cs

@@ -7,6 +7,7 @@ using Microsoft.AspNet.Builder;
 using Microsoft.AspNet.FileProviders;
 using Microsoft.AspNet.Hosting;
 using Microsoft.AspNet.Http;
+using Microsoft.Framework.Internal;
 using Microsoft.Net.Http.Headers;
 
 namespace Microsoft.AspNet.StaticFiles

src/Microsoft.AspNet.StaticFiles/DirectoryBrowserServiceExtensions.cs

@@ -1,8 +1,8 @@
 // Copyright (c) Microsoft Open Technologies, Inc. All rights reserved.
 // Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
 
-using Microsoft.AspNet.StaticFiles;
 using Microsoft.Framework.ConfigurationModel;
+using Microsoft.Framework.Internal;
 
 namespace Microsoft.Framework.DependencyInjection
 {

src/Microsoft.AspNet.StaticFiles/FileServerExtensions.cs

@@ -4,6 +4,7 @@
 using System;
 using Microsoft.AspNet.Http;
 using Microsoft.AspNet.StaticFiles;
+using Microsoft.Framework.Internal;
 
 namespace Microsoft.AspNet.Builder
 {

src/Microsoft.AspNet.StaticFiles/NotNullAttribute.cs

@@ -1,12 +0,0 @@
-// Copyright (c) Microsoft Open Technologies, Inc. All rights reserved.
-// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
-
-using System;
-
-namespace Microsoft.AspNet.StaticFiles
-{
-    [AttributeUsage(AttributeTargets.Parameter, AllowMultiple = false)]
-    internal sealed class NotNullAttribute : Attribute
-    {
-    }
-}

src/Microsoft.AspNet.StaticFiles/SendFileExtensions.cs

@@ -4,6 +4,7 @@
 using System;
 using System.Collections.Generic;
 using Microsoft.AspNet.Builder;
+using Microsoft.Framework.Internal;
 
 namespace Microsoft.AspNet.StaticFiles
 {

src/Microsoft.AspNet.StaticFiles/SendFileMiddleware.cs

@@ -7,6 +7,7 @@ using System.Threading;
 using System.Threading.Tasks;
 using Microsoft.AspNet.Builder;
 using Microsoft.AspNet.Http;
+using Microsoft.Framework.Internal;
 using Microsoft.Framework.Logging;
 
 namespace Microsoft.AspNet.StaticFiles

src/Microsoft.AspNet.StaticFiles/StaticFileExtensions.cs

@@ -3,6 +3,7 @@
 
 using Microsoft.AspNet.Http;
 using Microsoft.AspNet.StaticFiles;
+using Microsoft.Framework.Internal;
 
 namespace Microsoft.AspNet.Builder
 {

src/Microsoft.AspNet.StaticFiles/StaticFileMiddleware.cs

@@ -4,9 +4,9 @@
 using System;
 using System.Threading.Tasks;
 using Microsoft.AspNet.Builder;
-using Microsoft.AspNet.FileProviders;
 using Microsoft.AspNet.Hosting;
 using Microsoft.AspNet.Http;
+using Microsoft.Framework.Internal;
 using Microsoft.Framework.Logging;
 
 namespace Microsoft.AspNet.StaticFiles

src/Microsoft.AspNet.StaticFiles/project.json

@@ -7,6 +7,7 @@
         "Microsoft.AspNet.FileProviders.Interfaces": "1.0.0-*",
         "Microsoft.AspNet.Hosting.Interfaces": "1.0.0-*",
         "Microsoft.Framework.Logging": "1.0.0-*",
+        "Microsoft.Framework.NotNullAttribute.Internal": { "type": "build", "version": "1.0.0-*" },
         "Microsoft.Framework.WebEncoders": "1.0.0-*"
     },
     "frameworks": {