From 64d5ec12e260758c4a7b3e9df85212b51dab8444 Mon Sep 17 00:00:00 2001
From: Bond_009 <bond.009@outlook.com>
Date: Fri, 8 Feb 2019 22:59:28 +0100
Subject: Use HashSets for increased perf

---
 Emby.Server.Implementations/Library/UserManager.cs | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'Emby.Server.Implementations/Library/UserManager.cs')

diff --git a/Emby.Server.Implementations/Library/UserManager.cs b/Emby.Server.Implementations/Library/UserManager.cs
index 3ff84382f..22a593d49 100644
--- a/Emby.Server.Implementations/Library/UserManager.cs
+++ b/Emby.Server.Implementations/Library/UserManager.cs
@@ -171,9 +171,9 @@ namespace Emby.Server.Implementations.Library
         /// <exception cref="ArgumentNullException"></exception>
         public User GetUserById(Guid id)
         {
-            if (id.Equals(Guid.Empty))
+            if (id == Guid.Empty)
             {
-                throw new ArgumentNullException(nameof(id));
+                throw new ArgumentException(nameof(id), "Guid can't be empty");
             }
 
             return Users.FirstOrDefault(u => u.Id == id);
-- 
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