Paper/patches/server/0236-Don-t-call-getItemMeta-on-hasItemMeta.patch
Nassim Jahnke 789bc79280
Updated Upstream (Bukkit/CraftBukkit/Spigot) (#6457)
Upstream has released updates that appear to apply and compile correctly.
This update has not been tested by PaperMC and as with ANY update, please do your own testing

Bukkit Changes:
c9a46ebf #653: Add World#spawn with randomizeData parameter
e49c2e3a Damageable should extend ItemMeta
01ff04f4 SPIGOT-5880, SPIGOT-5567: New ChunkGenerator API
ca5b4b1a SPIGOT-6697: Deprecate generateTree with BlockChangeDelegate as it does not handle tiles

CraftBukkit Changes:
7c8bbcbe SPIGOT-6716: Preserve the order of stored enchantments of enchanted books.
18027d02 #914: Add World#spawn with randomizeData parameter
3cad0316 SPIGOT-6714: Don't fire PlayerBucketEvent when empty
8c6d60cf Fix server crash with BlockPopulator when entities are at a negative chunk border
4f6bcc84 SPIGOT-5880, SPIGOT-5567: New ChunkGenerator API
78d5b35b SPIGOT-6697: Restore generateTree with BlockChangeDelegate behaviour
15792f0d Rebuild patch
c949675e SPIGOT-6713: Cancelling EntityTransformEvent Causes Deceased Slimes To Not Despawn
a955f15c Fix issues with new ChunkGenerator API
a0a37f41 SPIGOT-6630: Replacing an enchantment on an item creates a conflict error

Spigot Changes:
b166a49b Rebuild patches
3c1fc60a SPIGOT-6693: Composters only take in one item at custom hopper speeds
2021-08-25 09:59:26 +02:00

65 Zeilen
3.6 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Hugo Manrique <hugmanrique@gmail.com>
Date: Thu, 26 Jul 2018 14:10:23 +0200
Subject: [PATCH] Don't call getItemMeta on hasItemMeta
Spigot 1.13 checks if any field (which are manually copied from the ItemStack's "tag" NBT tag) on the ItemMeta class of an ItemStack is set.
We could just check if the "tag" NBT tag is empty, albeit that would break some plugins. The only general tag added on 1.13 is "Damage", and we can just check if the "tag" NBT tag contains any other tag that's not "Damage" (https://minecraft.gamepedia.com/Player.dat_format#Item_structure) making the `hasItemStack` method behave as before.
Returns true if getDamage() == 0 or has damage tag or other tag is set.
Check the `ItemMetaTest#testTaggedButNotMeta` method to see how this method behaves.
diff --git a/src/main/java/org/bukkit/craftbukkit/inventory/CraftItemStack.java b/src/main/java/org/bukkit/craftbukkit/inventory/CraftItemStack.java
index 4b43e6a1b628e2060d1095dab892efd9d1dfc485..e9fa60755da0bc358020266ff4e450e1b31da595 100644
--- a/src/main/java/org/bukkit/craftbukkit/inventory/CraftItemStack.java
+++ b/src/main/java/org/bukkit/craftbukkit/inventory/CraftItemStack.java
@@ -576,7 +576,7 @@ public final class CraftItemStack extends ItemStack {
@Override
public boolean hasItemMeta() {
- return CraftItemStack.hasItemMeta(this.handle) && !CraftItemFactory.instance().equals(this.getItemMeta(), null);
+ return CraftItemStack.hasItemMeta(this.handle) && (this.handle.getDamageValue() != 0 || (this.handle.getTag() != null && this.handle.getTag().tags.size() >= (this.handle.getTag().contains(CraftMetaItem.DAMAGE.NBT) ? 2 : 1))); // Paper - keep 1.12 CraftBukkit behavior without calling getItemMeta
}
static boolean hasItemMeta(net.minecraft.world.item.ItemStack item) {
diff --git a/src/test/java/org/bukkit/craftbukkit/inventory/ItemMetaTest.java b/src/test/java/org/bukkit/craftbukkit/inventory/ItemMetaTest.java
index f3a0578f53863dd0866b4c2cb957a30fa3bc6cc5..44bc92bea0fa0742ef861e16eba3e57d9c6e49ce 100644
--- a/src/test/java/org/bukkit/craftbukkit/inventory/ItemMetaTest.java
+++ b/src/test/java/org/bukkit/craftbukkit/inventory/ItemMetaTest.java
@@ -99,6 +99,34 @@ public class ItemMetaTest extends AbstractTestingBase {
assertThat(itemMeta.hasConflictingEnchant(null), is(false));
}
+ // Paper start
+ private void testItemMeta(ItemStack stack) {
+ assertThat("Should not have ItemMeta", stack.hasItemMeta(), is(false));
+
+ stack.setDurability((short) 0);
+ assertThat("ItemStack with zero durability should not have ItemMeta", stack.hasItemMeta(), is(false));
+
+ stack.setDurability((short) 2);
+ assertThat("ItemStack with non-zero durability should have ItemMeta", stack.hasItemMeta(), is(true));
+
+ stack.setLore(java.util.Collections.singletonList("Lore"));
+ assertThat("ItemStack with lore and durability should have ItemMeta", stack.hasItemMeta(), is(true));
+
+ stack.setDurability((short) 0);
+ assertThat("ItemStack with lore should have ItemMeta", stack.hasItemMeta(), is(true));
+
+ stack.setLore(null);
+ }
+
+ @Test
+ public void testHasItemMeta() {
+ ItemStack itemStack = new ItemStack(Material.SHEARS);
+
+ testItemMeta(itemStack);
+ testItemMeta(CraftItemStack.asCraftCopy(itemStack));
+ }
+ // Paper end
+
@Test
public void testConflictingStoredEnchantment() {
EnchantmentStorageMeta itemMeta = (EnchantmentStorageMeta) Bukkit.getItemFactory().getItemMeta(Material.ENCHANTED_BOOK);