From e22a475ba3127f333d314118e9a1bb956334ac8d Mon Sep 17 00:00:00 2001
From: Zach Brown <zach.brown@destroystokyo.com>
Date: Wed, 2 Mar 2016 00:03:55 -0600
Subject: [PATCH] Check online mode before converting and renaming player data


diff --git a/src/main/java/net/minecraft/server/WorldNBTStorage.java b/src/main/java/net/minecraft/server/WorldNBTStorage.java
index a5157269c..a562e1e46 100644
--- a/src/main/java/net/minecraft/server/WorldNBTStorage.java
+++ b/src/main/java/net/minecraft/server/WorldNBTStorage.java
@@ -169,7 +169,7 @@ public class WorldNBTStorage implements IDataManager, IPlayerFileData {
             File file = new File(this.playerDir, entityhuman.bu() + ".dat");
             // Spigot Start
             boolean usingWrongFile = false;
-            if ( !file.exists() )
+            if ( org.bukkit.Bukkit.getOnlineMode() && !file.exists() ) // Paper - Check online mode first
             {
                 file = new File( this.playerDir, UUID.nameUUIDFromBytes( ( "OfflinePlayer:" + entityhuman.getName() ).getBytes( "UTF-8" ) ).toString() + ".dat");
                 if ( file.exists() )
-- 
2.18.0