Paper/patches/server/0494-Avoid-error-bubbling-up-when-item-stack-is-empty-in-.patch
Jake Potrebic 9147456fc9
Updated Upstream (CraftBukkit/Spigot) (#8815)
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

CraftBukkit Changes:
ab8ace685 SPIGOT-7236: Bone meal doesn't increase use statistic
7dcb59b8e Avoid switch on material in previous commit

Spigot Changes:
19641c75 SPIGOT-7235: World.Spigot#strikeLightningEffect doesn't do anything
2023-01-27 12:52:04 -08:00

47 lines
3.5 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Toon Schoenmakers <nighteyes1993@gmail.com>
Date: Fri, 23 Oct 2020 15:01:44 +0200
Subject: [PATCH] Avoid error bubbling up when item stack is empty in fishing
loot
This can realistically only happen if there's custom loot active on fishing
which can return 0 items. This would disconnect the player who's fishing.
diff --git a/src/main/java/net/minecraft/world/entity/projectile/FishingHook.java b/src/main/java/net/minecraft/world/entity/projectile/FishingHook.java
index ff7b5fea13be9a64e5886f8fe337802cbc5d19b2..7f3a7a769afec8449547c26453112064b9bcb04a 100644
--- a/src/main/java/net/minecraft/world/entity/projectile/FishingHook.java
+++ b/src/main/java/net/minecraft/world/entity/projectile/FishingHook.java
@@ -495,9 +495,15 @@ public class FishingHook extends Projectile {
while (iterator.hasNext()) {
ItemStack itemstack1 = (ItemStack) iterator.next();
- ItemEntity entityitem = new ItemEntity(this.level, this.getX(), this.getY(), this.getZ(), itemstack1);
+ // Paper start, new EntityItem would throw if for whatever reason (mostly shitty datapacks) the itemstack1 turns out to be empty
+ // if the item stack is empty we instead just have our entityitem as null
+ ItemEntity entityitem = null;
+ if (!itemstack1.isEmpty()) {
+ entityitem = new ItemEntity(this.level, this.getX(), this.getY(), this.getZ(), itemstack1);
+ }
+ // Paper end
// CraftBukkit start
- PlayerFishEvent playerFishEvent = new PlayerFishEvent((Player) entityhuman.getBukkitEntity(), entityitem.getBukkitEntity(), (FishHook) this.getBukkitEntity(), PlayerFishEvent.State.CAUGHT_FISH);
+ PlayerFishEvent playerFishEvent = new PlayerFishEvent((Player) entityhuman.getBukkitEntity(), entityitem != null ? entityitem.getBukkitEntity() : null, (FishHook) this.getBukkitEntity(), PlayerFishEvent.State.CAUGHT_FISH); // Paper - entityitem may be null
playerFishEvent.setExpToDrop(this.random.nextInt(6) + 1);
this.level.getCraftServer().getPluginManager().callEvent(playerFishEvent);
@@ -510,8 +516,12 @@ public class FishingHook extends Projectile {
double d2 = entityhuman.getZ() - this.getZ();
double d3 = 0.1D;
- entityitem.setDeltaMovement(d0 * 0.1D, d1 * 0.1D + Math.sqrt(Math.sqrt(d0 * d0 + d1 * d1 + d2 * d2)) * 0.08D, d2 * 0.1D);
- this.level.addFreshEntity(entityitem);
+ // Paper start, entity item can be null, so we need to check against this
+ if (entityitem != null) {
+ entityitem.setDeltaMovement(d0 * 0.1D, d1 * 0.1D + Math.sqrt(Math.sqrt(d0 * d0 + d1 * d1 + d2 * d2)) * 0.08D, d2 * 0.1D);
+ this.level.addFreshEntity(entityitem);
+ }
+ // Paper end
// CraftBukkit start - this.random.nextInt(6) + 1 -> playerFishEvent.getExpToDrop()
if (playerFishEvent.getExpToDrop() > 0) {
entityhuman.level.addFreshEntity(new ExperienceOrb(entityhuman.level, entityhuman.getX(), entityhuman.getY() + 0.5D, entityhuman.getZ() + 0.5D, playerFishEvent.getExpToDrop(), org.bukkit.entity.ExperienceOrb.SpawnReason.FISHING, this.getPlayerOwner(), this)); // Paper