Paper/Spigot-Server-Patches/0549-MC-197883-Bandaid-decode-issue.patch

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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Fri, 21 Aug 2020 21:05:28 -0400
Subject: [PATCH] MC-197883: Bandaid decode issue
Mojang has a mix of type and name in the data sets, but you can only
use one.
This will retry as name if type is asked for and not found.
diff --git a/src/main/java/com/mojang/serialization/codecs/KeyDispatchCodec.java b/src/main/java/com/mojang/serialization/codecs/KeyDispatchCodec.java
index de7d1e5e0319c65775d932144c268c2d55bb7dc7..bd6a0e1b5454e880a4f2a16be7dc8da64b73e11d 100644
--- a/src/main/java/com/mojang/serialization/codecs/KeyDispatchCodec.java
+++ b/src/main/java/com/mojang/serialization/codecs/KeyDispatchCodec.java
@@ -48,7 +48,12 @@ public class KeyDispatchCodec<K, V> extends MapCodec<V> {
@Override
public <T> DataResult<V> decode(final DynamicOps<T> ops, final MapLike<T> input) {
- final T elementName = input.get(typeKey);
+ // Paper start - bandaid MC-197883
+ T elementName = input.get(typeKey);
+ if (elementName == null && "type".equals(typeKey)) {
+ elementName = input.get("name");
+ }
+ // Paper end
if (elementName == null) {
return DataResult.error("Input does not contain a key [" + typeKey + "]: " + input);
}