Update to 1.21.6

Author: NichtStudioCode

gradle/libs.versions.toml

@@ -1,6 +1,6 @@
 [versions]
 kotlin = "2.1.0"
-paper = "1.21.5-R0.1-SNAPSHOT"
+paper = "1.21.6-R0.1-SNAPSHOT"
 
 [libraries]
 commons-provider = { module = "xyz.xenondevs.commons:commons-provider", version = "2.0.0-alpha.2" }

invui/src/main/java/xyz/xenondevs/invui/internal/util/DataUtils.java

@@ -40,8 +40,13 @@ public static byte[][] read2DByteArray(DataInputStream din) throws IOException {
      */
     public static void serializeItemStack(ItemStack itemStack, OutputStream out) {
         try {
-            var tag = CraftItemStack.unwrap(itemStack).save(MinecraftServer.getServer().registryAccess());
-            NbtIo.write((CompoundTag) tag, new DataOutputStream(out));
+            var tag = (CompoundTag) net.minecraft.world.item.ItemStack.CODEC.encodeStart(
+                MinecraftServer.getServer()
+                    .registryAccess()
+                    .createSerializationContext(NbtOps.INSTANCE),
+                CraftItemStack.unwrap(itemStack)
+            ).getOrThrow();
+            NbtIo.write(tag, new DataOutputStream(out));
         } catch (IOException e) {
             throw new RuntimeException(e);
         }
@@ -63,9 +68,12 @@ public static ItemStack deserializeItemStack(int dataVersion, InputStream in) {
                 dataVersion, CraftMagicNumbers.INSTANCE.getDataVersion()
             ).getValue();
 
-            return net.minecraft.world.item.ItemStack.parse(MinecraftServer.getServer().registryAccess(), tag)
-                .orElseThrow()
-                .asBukkitMirror();
+            return net.minecraft.world.item.ItemStack.CODEC.parse(
+                MinecraftServer.getServer()
+                    .registryAccess()
+                    .createSerializationContext(NbtOps.INSTANCE),
+                tag
+            ).resultOrPartial().orElseThrow().asBukkitMirror();
         } catch (IOException e) {
             throw new RuntimeException(e);
         }