From f2cf3b201b4a967eae556d46202262b00344d84e Mon Sep 17 00:00:00 2001
From: UbitUmarov <ajlduarte@sapo.pt>
Date: Sat, 2 Nov 2019 21:53:12 +0000
Subject: [PATCH] avoid a null ref

---
 OpenSim/Services/UserAccountService/UserAccountService.cs | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/OpenSim/Services/UserAccountService/UserAccountService.cs b/OpenSim/Services/UserAccountService/UserAccountService.cs
index aada0be8e6..4f0698fc8a 100755
--- a/OpenSim/Services/UserAccountService/UserAccountService.cs
+++ b/OpenSim/Services/UserAccountService/UserAccountService.cs
@@ -294,6 +294,8 @@ namespace OpenSim.Services.UserAccountService
         public List<UserAccount> GetUserAccounts(UUID scopeID, List<string> IDs)
         {
             UserAccountData[] ret = m_Database.GetUsersWhere(scopeID, "PrincipalID in ('" + String.Join("', '", IDs) + "')");
+            if(ret == null || ret.Length == 0)
+                return new List<UserAccount>();
             return new List<UserAccount>(ret.Select((x) => MakeUserAccount(x)));
         }