Paper/Spigot-Server-Patches/0262-Don-t-call-getItemMeta-on-hasItemMeta.patch
Shane Freeder d413dca4ee
Updated Upstream (Bukkit/CraftBukkit/Spigot)
Upstream has released updates that appears 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:
333b9f02 SPIGOT-5422: Add support for 3-dimensional biomes
170d7386 Fix bad link in deprecated FlowerPot MaterialData class

CraftBukkit Changes:
16dc5758 SPIGOT-5449: Fix issue with projectiles
fd25653f SPIGOT-5448: Shulker Boxes collapse empty slots when picked up
b97d581a SPIGOT-5443: BEE_NEST BlockState
73698cf8 SPIGOT-5442: Fix issue with fire charges
beff9fb9 SPIGOT-5437: Fix CustomChunkGenerator.CustomBiomeGrid ignoring the y value for biomes
f777640e SPIGOT-5425: Prevent empty/air loot (again?)
db0dafb1 SPIGOT-5422: Add support for 3-dimensional biomes
4633e6c5 Fix crash with disabled worlds

Spigot Changes:
f39a89ef SPIGOT-5423: Remove covariant type change to give better chance of Java downgrades working
2019-12-13 14:08:40 +00:00

82 lines
3.8 KiB
Diff

From b64736300fe65fae0d26e59dbdef3eb49168adb3 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 a41be8fda..d5e8a7ee6 100644
--- a/src/main/java/org/bukkit/craftbukkit/inventory/CraftItemStack.java
+++ b/src/main/java/org/bukkit/craftbukkit/inventory/CraftItemStack.java
@@ -553,7 +553,7 @@ public final class CraftItemStack extends ItemStack {
@Override
public boolean hasItemMeta() {
- return hasItemMeta(handle) && !CraftItemFactory.instance().equals(getItemMeta(), null);
+ return hasItemMeta(handle) && (handle.getDamage() != 0 || (handle.getTag() != null && handle.getTag().map.size() >= (handle.getTag().hasKey(CraftMetaItem.DAMAGE.NBT) ? 2 : 1))); // Paper - keep 1.12 CraftBukkit behavior without calling getItemMeta
}
static boolean hasItemMeta(net.minecraft.server.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 3a82bede7..d73141839 100644
--- a/src/test/java/org/bukkit/craftbukkit/inventory/ItemMetaTest.java
+++ b/src/test/java/org/bukkit/craftbukkit/inventory/ItemMetaTest.java
@@ -2,10 +2,9 @@ package org.bukkit.craftbukkit.inventory;
import static org.hamcrest.Matchers.*;
import static org.junit.Assert.*;
-import java.util.ArrayList;
-import java.util.Arrays;
-import java.util.List;
-import java.util.UUID;
+
+import java.util.*;
+
import com.destroystokyo.paper.inventory.meta.ArmorStandMeta; // Paper
import net.minecraft.server.Block;
import net.minecraft.server.IRegistry;
@@ -97,6 +96,34 @@ 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(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);
--
2.24.1