From 8045a488ceccc5c85195be3ef694a418c1c326aa Mon Sep 17 00:00:00 2001 From: Bond_009 Date: Mon, 12 Apr 2021 22:01:35 +0200 Subject: [PATCH] Fix possible ArgumentNullException ``` Error Message: System.ArgumentNullException : Value cannot be null. (Parameter 'source') Stack Trace: at System.Linq.ThrowHelper.ThrowArgumentNullException(ExceptionArgument argument) at System.Linq.Enumerable.Select[TSource,TResult](IEnumerable`1 source, Func`2 selector) at Emby.Server.Implementations.Library.LibraryManager.ResolveItem(ItemResolveArgs args, IItemResolver[] resolvers) in /home/vsts/work/1/s/Emby.Server.Implementations/Library/LibraryManager.cs:line 475 at Emby.Server.Implementations.Library.LibraryManager.ResolvePath(FileSystemMetadata fileInfo, IDirectoryService directoryService, IItemResolver[] resolvers, Folder parent, String collectionType, LibraryOptions libraryOptions) in /home/vsts/work/1/s/Emby.Server.Implementations/Library/LibraryManager.cs:line 618 at Emby.Server.Implementations.Library.LibraryManager.ResolvePath(FileSystemMetadata fileInfo, Folder parent) in /home/vsts/work/1/s/Emby.Server.Implementations/Library/LibraryManager.cs:line 536 at Emby.Server.Implementations.Library.LibraryManager.GetUserRootFolder() in /home/vsts/work/1/s/Emby.Server.Implementations/Library/LibraryManager.cs:line 812 at Emby.Server.Implementations.Library.LibraryManager.GetCollectionFolders(BaseItem item) in /home/vsts/work/1/s/Emby.Server.Implementations/Library/LibraryManager.cs:line 2080 at Emby.Server.Implementations.Library.LibraryManager.GetLibraryOptions(BaseItem item) in /home/vsts/work/1/s/Emby.Server.Implementations/Library/LibraryManager.cs:line 2116 at MediaBrowser.Providers.Manager.ProviderManager.SaveMetadata(BaseItem item, ItemUpdateType updateType, IEnumerable`1 savers) in /home/vsts/work/1/s/MediaBrowser.Providers/Manager/ProviderManager.cs:line 672 at MediaBrowser.Providers.Manager.ProviderManager.SaveMetadata(BaseItem item, ItemUpdateType updateType) in /home/vsts/work/1/s/MediaBrowser.Providers/Manager/ProviderManager.cs:line 655 at Emby.Server.Implementations.Library.LibraryManager.RunMetadataSavers(BaseItem item, ItemUpdateType updateReason) in /home/vsts/work/1/s/Emby.Server.Implementations/Library/LibraryManager.cs:line 2017 at Emby.Server.Implementations.Library.LibraryManager.UpdateItemsAsync(IReadOnlyList`1 items, BaseItem parent, ItemUpdateType updateReason, CancellationToken cancellationToken) in /home/vsts/work/1/s/Emby.Server.Implementations/Library/LibraryManager.cs:line 1975 at Emby.Server.Implementations.Library.LibraryManager.CreateRootFolder() in /home/vsts/work/1/s/Emby.Server.Implementations/Library/LibraryManager.cs:line 775 at Emby.Server.Implementations.Library.LibraryManager.get_RootFolder() in /home/vsts/work/1/s/Emby.Server.Implementations/Library/LibraryManager.cs:line 180 at Emby.Server.Implementations.IO.LibraryMonitor.Start() in /home/vsts/work/1/s/Emby.Server.Implementations/IO/LibraryMonitor.cs:line 135 at Emby.Server.Implementations.IO.LibraryMonitorStartup.RunAsync() in /home/vsts/work/1/s/Emby.Server.Implementations/IO/LibraryMonitorStartup.cs:line 26 at Emby.Server.Implementations.ApplicationHost.StartEntryPoints(IEnumerable`1 entryPoints, Boolean isBeforeStartup)+MoveNext() in /home/vsts/work/1/s/Emby.Server.Implementations/ApplicationHost.cs:line 518 at System.Threading.Tasks.Task.WhenAll(IEnumerable`1 tasks) at Emby.Server.Implementations.ApplicationHost.RunStartupTasksAsync(CancellationToken cancellationToken) in /home/vsts/work/1/s/Emby.Server.Implementations/ApplicationHost.cs:line 502 at Jellyfin.Server.Integration.Tests.JellyfinApplicationFactory.CreateServer(IWebHostBuilder builder) in /home/vsts/work/1/s/tests/Jellyfin.Server.Integration.Tests/JellyfinApplicationFactory.cs:line 101 at Microsoft.AspNetCore.Mvc.Testing.WebApplicationFactory`1.EnsureServer() at Microsoft.AspNetCore.Mvc.Testing.WebApplicationFactory`1.CreateDefaultClient(DelegatingHandler[] handlers) at Microsoft.AspNetCore.Mvc.Testing.WebApplicationFactory`1.CreateDefaultClient(Uri baseAddress, DelegatingHandler[] handlers) at Microsoft.AspNetCore.Mvc.Testing.WebApplicationFactory`1.CreateClient(WebApplicationFactoryClientOptions options) at Microsoft.AspNetCore.Mvc.Testing.WebApplicationFactory`1.CreateClient() at Jellyfin.Server.Integration.Tests.Controllers.ActivityLogControllerTests.ActivityLog_GetEntries_Ok() in /home/vsts/work/1/s/tests/Jellyfin.Server.Integration.Tests/Controllers/ActivityLogControllerTests.cs:line 21 --- End of stack trace from previous location --- ``` --- Emby.Server.Implementations/Library/LibraryManager.cs | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/Emby.Server.Implementations/Library/LibraryManager.cs b/Emby.Server.Implementations/Library/LibraryManager.cs index 7f29e3e99a..6a9f4174dc 100644 --- a/Emby.Server.Implementations/Library/LibraryManager.cs +++ b/Emby.Server.Implementations/Library/LibraryManager.cs @@ -196,13 +196,13 @@ namespace Emby.Server.Implementations.Library /// Gets or sets the postscan tasks. /// /// The postscan tasks. - private ILibraryPostScanTask[] PostscanTasks { get; set; } + private ILibraryPostScanTask[] PostscanTasks { get; set; } = Array.Empty(); /// /// Gets or sets the intro providers. /// /// The intro providers. - private IIntroProvider[] IntroProviders { get; set; } + private IIntroProvider[] IntroProviders { get; set; } = Array.Empty(); /// /// Gets or sets the list of entity resolution ignore rules. @@ -214,15 +214,15 @@ namespace Emby.Server.Implementations.Library /// Gets or sets the list of currently registered entity resolvers. /// /// The entity resolvers enumerable. - private IItemResolver[] EntityResolvers { get; set; } + private IItemResolver[] EntityResolvers { get; set; } = Array.Empty(); - private IMultiItemResolver[] MultiItemResolvers { get; set; } + private IMultiItemResolver[] MultiItemResolvers { get; set; } = Array.Empty(); /// /// Gets or sets the comparers. /// /// The comparers. - private IBaseItemComparer[] Comparers { get; set; } + private IBaseItemComparer[] Comparers { get; set; } = Array.Empty(); public bool IsScanRunning { get; private set; }