1 files changed, 39 insertions, 0 deletions
diff --git a/patches/server/0914-Fix-UnsafeValues-loadAdvancement.patch b/patches/server/0914-Fix-UnsafeValues-loadAdvancement.patch
new file mode 100644
index 0000000000..4bf2224704
--- /dev/null
+++ b/patches/server/0914-Fix-UnsafeValues-loadAdvancement.patch
@@ -0,0 +1,39 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: LemonCaramel <[email protected]>
+Date: Sun, 24 Sep 2023 20:19:44 +0900
+Subject: [PATCH] Fix UnsafeValues#loadAdvancement
+
+
+diff --git a/src/main/java/org/bukkit/craftbukkit/util/CraftMagicNumbers.java b/src/main/java/org/bukkit/craftbukkit/util/CraftMagicNumbers.java
+index 2d51418612e4df40b9536ac72ba0a070d59f32d1..34208c749621003ba3ad74894ca25e01469b66f2 100644
+--- a/src/main/java/org/bukkit/craftbukkit/util/CraftMagicNumbers.java
++++ b/src/main/java/org/bukkit/craftbukkit/util/CraftMagicNumbers.java
+@@ -323,7 +323,27 @@ public final class CraftMagicNumbers implements UnsafeValues {
+         JsonElement jsonelement = ServerAdvancementManager.GSON.fromJson(advancement, JsonElement.class);
+         net.minecraft.advancements.Advancement nms = net.minecraft.advancements.Advancement.CODEC.parse(JsonOps.INSTANCE, jsonelement).getOrThrow(JsonParseException::new);
+         if (nms != null) {
+-            MinecraftServer.getServer().getAdvancements().advancements.put(minecraftkey, new AdvancementHolder(minecraftkey, nms));
++            // Paper start - Fix throw UnsupportedOperationException
++            //MinecraftServer.getServer().getAdvancements().advancements.put(minecraftkey, new AdvancementHolder(minecraftkey, nms));
++            final com.google.common.collect.ImmutableMap.Builder<ResourceLocation, AdvancementHolder> mapBuilder = com.google.common.collect.ImmutableMap.builder();
++            mapBuilder.putAll(MinecraftServer.getServer().getAdvancements().advancements);
++
++            final AdvancementHolder holder = new AdvancementHolder(minecraftkey, nms);
++            mapBuilder.put(minecraftkey, holder);
++
++            MinecraftServer.getServer().getAdvancements().advancements = mapBuilder.build();
++            final net.minecraft.advancements.AdvancementTree tree = MinecraftServer.getServer().getAdvancements().tree();
++            tree.addAll(java.util.List.of(holder));
++
++            // recalculate advancement position
++            final net.minecraft.advancements.AdvancementNode node = tree.get(minecraftkey);
++            if (node != null) {
++                final net.minecraft.advancements.AdvancementNode root = node.root();
++                if (root.holder().value().display().isPresent()) {
++                    net.minecraft.advancements.TreeNodePosition.run(root);
++                }
++            }
++            // Paper end - Fix throw UnsupportedOperationException
+             Advancement bukkit = Bukkit.getAdvancement(key);
+ 
+             if (bukkit != null) {