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Fix NPE and StackOverflowError for dispensers

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Lulu13022002 2024-10-27 18:47:50 +01:00
parent 02bca1e655
commit 4d87302672
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GPG key ID: 491C8F0B8ACDEB01
7 changed files with 318 additions and 104 deletions
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4
patches/server/0459-Add-BlockFailedDispenseEvent.patch
View file

@ -5,7 +5,7 @@ Subject: [PATCH] Add BlockFailedDispenseEvent
diff --git a/src/main/java/net/minecraft/world/level/block/DispenserBlock.java b/src/main/java/net/minecraft/world/level/block/DispenserBlock.java
index f4510b8e14d0b9997907ce1d1368ba3b3b5daf3e..f4853a5ff8a45efcda2d7781c1fa897c47d8ea46 100644
index 3d05e71fef8fa70df05311a6a9ddad99994892a6..352f5412fc469a1fde6f14ffcaf00e88613b2704 100644
--- a/src/main/java/net/minecraft/world/level/block/DispenserBlock.java
+++ b/src/main/java/net/minecraft/world/level/block/DispenserBlock.java
@@ -98,8 +98,10 @@ public class DispenserBlock extends BaseEntityBlock {
@ -20,7 +20,7 @@ index f4510b8e14d0b9997907ce1d1368ba3b3b5daf3e..f4853a5ff8a45efcda2d7781c1fa897c
ItemStack itemstack = tileentitydispenser.getItem(i);
DispenseItemBehavior idispensebehavior = this.getDispenseMethod(world, itemstack);
diff --git a/src/main/java/net/minecraft/world/level/block/DropperBlock.java b/src/main/java/net/minecraft/world/level/block/DropperBlock.java
index a08e8571f3a83afc80c2f1758a9029cd28ed6947..91b514967405115f22edf4255775361a672e5c2f 100644
index 09e5ff5a0270cb88f3505a28c07ef816f18ac23b..3e09d4b11c881b9c7d3447df379286238076cfee 100644
--- a/src/main/java/net/minecraft/world/level/block/DropperBlock.java
+++ b/src/main/java/net/minecraft/world/level/block/DropperBlock.java
@@ -60,6 +60,7 @@ public class DropperBlock extends DispenserBlock {

4
patches/server/0473-Add-BlockPreDispenseEvent.patch
View file

@ -5,7 +5,7 @@ Subject: [PATCH] Add BlockPreDispenseEvent
diff --git a/src/main/java/net/minecraft/world/level/block/DispenserBlock.java b/src/main/java/net/minecraft/world/level/block/DispenserBlock.java
index f4853a5ff8a45efcda2d7781c1fa897c47d8ea46..a02f24448b002824b068278fa427003008c0d0f1 100644
index 352f5412fc469a1fde6f14ffcaf00e88613b2704..9f99a9ec8f8269a0aeee2d6aa68f8a344f5f64b6 100644
--- a/src/main/java/net/minecraft/world/level/block/DispenserBlock.java
+++ b/src/main/java/net/minecraft/world/level/block/DispenserBlock.java
@@ -107,6 +107,7 @@ public class DispenserBlock extends BaseEntityBlock {
@ -17,7 +17,7 @@ index f4853a5ff8a45efcda2d7781c1fa897c47d8ea46..a02f24448b002824b068278fa4270030
tileentitydispenser.setItem(i, idispensebehavior.dispense(sourceblock, itemstack));
}
diff --git a/src/main/java/net/minecraft/world/level/block/DropperBlock.java b/src/main/java/net/minecraft/world/level/block/DropperBlock.java
index 91b514967405115f22edf4255775361a672e5c2f..ddecf443df3679e3098eb54edd19585a0512e342 100644
index 3e09d4b11c881b9c7d3447df379286238076cfee..1762415720caa722600ab7e81344ee9168e42011 100644
--- a/src/main/java/net/minecraft/world/level/block/DropperBlock.java
+++ b/src/main/java/net/minecraft/world/level/block/DropperBlock.java
@@ -71,6 +71,7 @@ public class DropperBlock extends DispenserBlock {

309
patches/server/0936-Fix-possible-StackOverflowError-and-NPE-for-some-dis.patch Normal file
View file

@ -0,0 +1,309 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Jake Potrebic <jake.m.potrebic@gmail.com>
Date: Sat, 29 Oct 2022 17:02:42 -0700
Subject: [PATCH] Fix possible StackOverflowError and NPE for some dispenses
For saddles, carpets, horse armor, and chests for horse-likes
a BlockDispenseEvent handler that always mutated the item without
changing the type would result in a SO error because when it went
to find the replacement dispense behavior (since the item "changed")
it didn't properly handle if the replacement was the same instance
of dispense behavior.
Additionally equippable mob heads, wither skulls, and carved pumpkins
are subject to the same possible error.
Furthermore since 1.21.2, the DISPENSER_REGISTRY map doesn't have a default
return value anymore and some dispense behaviors like equippable and
regular items will not have a defined behavior in that map and might throw
a NPE in that case.
== AT ==
public net.minecraft.world.level.block.DispenserBlock getDispenseMethod(Lnet/minecraft/world/level/Level;Lnet/minecraft/world/item/ItemStack;)Lnet/minecraft/core/dispenser/DispenseItemBehavior;
diff --git a/src/main/java/net/minecraft/core/dispenser/BoatDispenseItemBehavior.java b/src/main/java/net/minecraft/core/dispenser/BoatDispenseItemBehavior.java
index 36180e80dbd681e68c60e097015dad890a48b574..dff30954e4c588ee4cc79d3f6dab6fb456934d65 100644
--- a/src/main/java/net/minecraft/core/dispenser/BoatDispenseItemBehavior.java
+++ b/src/main/java/net/minecraft/core/dispenser/BoatDispenseItemBehavior.java
@@ -67,7 +67,7 @@ public class BoatDispenseItemBehavior extends DefaultDispenseItemBehavior {
stack.grow(1);
// Chain to handler for new item
ItemStack eventStack = CraftItemStack.asNMSCopy(event.getItem());
- DispenseItemBehavior idispensebehavior = (DispenseItemBehavior) DispenserBlock.DISPENSER_REGISTRY.get(eventStack.getItem());
+ DispenseItemBehavior idispensebehavior = DispenserBlock.getDispenseBehavior(pointer, eventStack); // Paper - Fix NPE with equippable and items without behavior
if (idispensebehavior != DispenseItemBehavior.NOOP && idispensebehavior != this) {
idispensebehavior.dispense(pointer, eventStack);
return stack;
diff --git a/src/main/java/net/minecraft/core/dispenser/DefaultDispenseItemBehavior.java b/src/main/java/net/minecraft/core/dispenser/DefaultDispenseItemBehavior.java
index 39c96f5db6e90a470404c6387fa0c1d5531822e5..8aae1d113e84dfad9f2b6f0bcd203ca6c68bc5ce 100644
--- a/src/main/java/net/minecraft/core/dispenser/DefaultDispenseItemBehavior.java
+++ b/src/main/java/net/minecraft/core/dispenser/DefaultDispenseItemBehavior.java
@@ -101,7 +101,7 @@ public class DefaultDispenseItemBehavior implements DispenseItemBehavior {
if (!dropper && !event.getItem().getType().equals(craftItem.getType())) {
// Chain to handler for new item
ItemStack eventStack = CraftItemStack.asNMSCopy(event.getItem());
- DispenseItemBehavior idispensebehavior = (DispenseItemBehavior) DispenserBlock.DISPENSER_REGISTRY.get(eventStack.getItem());
+ DispenseItemBehavior idispensebehavior = DispenserBlock.getDispenseBehavior(sourceblock, eventStack); // Paper - Fix NPE with equippable and items without behavior
if (idispensebehavior != DispenseItemBehavior.NOOP && idispensebehavior.getClass() != DefaultDispenseItemBehavior.class) {
idispensebehavior.dispense(sourceblock, eventStack);
} else {
diff --git a/src/main/java/net/minecraft/core/dispenser/DispenseItemBehavior.java b/src/main/java/net/minecraft/core/dispenser/DispenseItemBehavior.java
index 18304349c9ab24657c4152aff800dba969174665..94b2647f69035dce9a3d56b6978e3884e06c5583 100644
--- a/src/main/java/net/minecraft/core/dispenser/DispenseItemBehavior.java
+++ b/src/main/java/net/minecraft/core/dispenser/DispenseItemBehavior.java
@@ -124,7 +124,7 @@ public interface DispenseItemBehavior {
stack.grow(1);
// Chain to handler for new item
ItemStack eventStack = CraftItemStack.asNMSCopy(event.getItem());
- DispenseItemBehavior idispensebehavior = (DispenseItemBehavior) DispenserBlock.DISPENSER_REGISTRY.get(eventStack.getItem());
+ DispenseItemBehavior idispensebehavior = DispenserBlock.getDispenseBehavior(pointer, eventStack); // Paper - Fix NPE with equippable and items without behavior
if (idispensebehavior != DispenseItemBehavior.NOOP && idispensebehavior != this) {
idispensebehavior.dispense(pointer, eventStack);
return stack;
@@ -178,7 +178,7 @@ public interface DispenseItemBehavior {
stack.grow(1);
// Chain to handler for new item
ItemStack eventStack = CraftItemStack.asNMSCopy(event.getItem());
- DispenseItemBehavior idispensebehavior = (DispenseItemBehavior) DispenserBlock.DISPENSER_REGISTRY.get(eventStack.getItem());
+ DispenseItemBehavior idispensebehavior = DispenserBlock.getDispenseBehavior(pointer, eventStack); // Paper - Fix NPE with equippable and items without behavior
if (idispensebehavior != DispenseItemBehavior.NOOP && idispensebehavior != this) {
idispensebehavior.dispense(pointer, eventStack);
return stack;
@@ -231,8 +231,8 @@ public interface DispenseItemBehavior {
stack.grow(1);
// Chain to handler for new item
ItemStack eventStack = CraftItemStack.asNMSCopy(event.getItem());
- DispenseItemBehavior idispensebehavior = (DispenseItemBehavior) DispenserBlock.DISPENSER_REGISTRY.get(eventStack.getItem());
- if (idispensebehavior != DispenseItemBehavior.NOOP && idispensebehavior != EquipmentDispenseItemBehavior.INSTANCE) {
+ DispenseItemBehavior idispensebehavior = DispenserBlock.getDispenseBehavior(pointer, eventStack); // Paper - Fix NPE with equippable and items without behavior
+ if (idispensebehavior != DispenseItemBehavior.NOOP && idispensebehavior != EquipmentDispenseItemBehavior.INSTANCE && idispensebehavior != this) { // Paper - fix possible StackOverflowError
idispensebehavior.dispense(pointer, eventStack);
return stack;
}
@@ -282,8 +282,8 @@ public interface DispenseItemBehavior {
if (!event.getItem().equals(craftItem)) {
// Chain to handler for new item
ItemStack eventStack = CraftItemStack.asNMSCopy(event.getItem());
- DispenseItemBehavior idispensebehavior = (DispenseItemBehavior) DispenserBlock.DISPENSER_REGISTRY.get(eventStack.getItem());
- if (idispensebehavior != DispenseItemBehavior.NOOP && idispensebehavior != EquipmentDispenseItemBehavior.INSTANCE) {
+ DispenseItemBehavior idispensebehavior = DispenserBlock.getDispenseBehavior(pointer, eventStack); // Paper - Fix NPE with equippable and items without behavior
+ if (idispensebehavior != DispenseItemBehavior.NOOP && idispensebehavior != EquipmentDispenseItemBehavior.INSTANCE && idispensebehavior != this) { // Paper - fix possible StackOverflowError
idispensebehavior.dispense(pointer, eventStack);
return stack;
}
@@ -352,7 +352,7 @@ public interface DispenseItemBehavior {
if (!event.getItem().equals(craftItem)) {
// Chain to handler for new item
ItemStack eventStack = CraftItemStack.asNMSCopy(event.getItem());
- DispenseItemBehavior idispensebehavior = (DispenseItemBehavior) DispenserBlock.DISPENSER_REGISTRY.get(eventStack.getItem());
+ DispenseItemBehavior idispensebehavior = DispenserBlock.getDispenseBehavior(pointer, eventStack); // Paper - Fix NPE with equippable and items without behavior
if (idispensebehavior != DispenseItemBehavior.NOOP && idispensebehavior != this) {
idispensebehavior.dispense(pointer, eventStack);
return stack;
@@ -414,7 +414,7 @@ public interface DispenseItemBehavior {
if (!event.getItem().equals(craftItem)) {
// Chain to handler for new item
ItemStack eventStack = CraftItemStack.asNMSCopy(event.getItem());
- DispenseItemBehavior idispensebehavior = (DispenseItemBehavior) DispenserBlock.DISPENSER_REGISTRY.get(eventStack.getItem());
+ DispenseItemBehavior idispensebehavior = DispenserBlock.getDispenseBehavior(pointer, eventStack); // Paper - Fix NPE with equippable and items without behavior
if (idispensebehavior != DispenseItemBehavior.NOOP && idispensebehavior != this) {
idispensebehavior.dispense(pointer, eventStack);
return stack;
@@ -452,7 +452,7 @@ public interface DispenseItemBehavior {
if (!event.getItem().equals(craftItem)) {
// Chain to handler for new item
ItemStack eventStack = CraftItemStack.asNMSCopy(event.getItem());
- DispenseItemBehavior idispensebehavior = (DispenseItemBehavior) DispenserBlock.DISPENSER_REGISTRY.get(eventStack.getItem());
+ DispenseItemBehavior idispensebehavior = DispenserBlock.getDispenseBehavior(pointer, eventStack); // Paper - Fix NPE with equippable and items without behavior
if (idispensebehavior != DispenseItemBehavior.NOOP && idispensebehavior != this) {
idispensebehavior.dispense(pointer, eventStack);
return stack;
@@ -514,7 +514,7 @@ public interface DispenseItemBehavior {
if (!event.getItem().equals(craftItem)) {
// Chain to handler for new item
ItemStack eventStack = CraftItemStack.asNMSCopy(event.getItem());
- DispenseItemBehavior idispensebehavior = (DispenseItemBehavior) DispenserBlock.DISPENSER_REGISTRY.get(eventStack.getItem());
+ DispenseItemBehavior idispensebehavior = DispenserBlock.getDispenseBehavior(pointer, eventStack); // Paper - Fix NPE with equippable and items without behavior
if (idispensebehavior != DispenseItemBehavior.NOOP && idispensebehavior != this) {
idispensebehavior.dispense(pointer, eventStack);
return stack;
@@ -585,7 +585,7 @@ public interface DispenseItemBehavior {
stack.grow(1);
// Chain to handler for new item
ItemStack eventStack = CraftItemStack.asNMSCopy(event.getItem());
- DispenseItemBehavior idispensebehavior = (DispenseItemBehavior) DispenserBlock.DISPENSER_REGISTRY.get(eventStack.getItem());
+ DispenseItemBehavior idispensebehavior = DispenserBlock.getDispenseBehavior(pointer, eventStack); // Paper - Fix NPE with equippable and items without behavior
if (idispensebehavior != DispenseItemBehavior.NOOP && idispensebehavior != this) {
idispensebehavior.dispense(pointer, eventStack);
return stack;
@@ -625,7 +625,7 @@ public interface DispenseItemBehavior {
if (!event.getItem().equals(craftItem)) {
// Chain to handler for new item
ItemStack eventStack = CraftItemStack.asNMSCopy(event.getItem());
- DispenseItemBehavior idispensebehavior = (DispenseItemBehavior) DispenserBlock.DISPENSER_REGISTRY.get(eventStack.getItem());
+ DispenseItemBehavior idispensebehavior = DispenserBlock.getDispenseBehavior(pointer, eventStack); // Paper - Fix NPE with equippable and items without behavior
if (idispensebehavior != DispenseItemBehavior.NOOP && idispensebehavior != this) {
idispensebehavior.dispense(pointer, eventStack);
return stack;
@@ -645,7 +645,7 @@ public interface DispenseItemBehavior {
stack.shrink(1);
this.setSuccess(true);
} else {
- this.setSuccess(EquipmentDispenseItemBehavior.dispenseEquipment(pointer, stack));
+ this.setSuccess(EquipmentDispenseItemBehavior.dispenseEquipment(pointer, stack, this)); // Paper - fix possible StackOverflowError
}
return stack;
@@ -674,7 +674,7 @@ public interface DispenseItemBehavior {
if (!event.getItem().equals(craftItem)) {
// Chain to handler for new item
ItemStack eventStack = CraftItemStack.asNMSCopy(event.getItem());
- DispenseItemBehavior idispensebehavior = (DispenseItemBehavior) DispenserBlock.DISPENSER_REGISTRY.get(eventStack.getItem());
+ DispenseItemBehavior idispensebehavior = DispenserBlock.getDispenseBehavior(pointer, eventStack); // Paper - Fix NPE with equippable and items without behavior
if (idispensebehavior != DispenseItemBehavior.NOOP && idispensebehavior != this) {
idispensebehavior.dispense(pointer, eventStack);
return stack;
@@ -691,7 +691,7 @@ public interface DispenseItemBehavior {
stack.shrink(1);
this.setSuccess(true);
} else {
- this.setSuccess(EquipmentDispenseItemBehavior.dispenseEquipment(pointer, stack));
+ this.setSuccess(EquipmentDispenseItemBehavior.dispenseEquipment(pointer, stack, this)); // Paper - fix possible StackOverflowError
}
return stack;
@@ -736,7 +736,7 @@ public interface DispenseItemBehavior {
if (!event.getItem().equals(craftItem)) {
// Chain to handler for new item
ItemStack eventStack = CraftItemStack.asNMSCopy(event.getItem());
- DispenseItemBehavior idispensebehavior = (DispenseItemBehavior) DispenserBlock.DISPENSER_REGISTRY.get(eventStack.getItem());
+ DispenseItemBehavior idispensebehavior = DispenserBlock.getDispenseBehavior(pointer, eventStack); // Paper - Fix NPE with equippable and items without behavior
if (idispensebehavior != DispenseItemBehavior.NOOP && idispensebehavior != this) {
idispensebehavior.dispense(pointer, eventStack);
return stack;
@@ -818,8 +818,8 @@ public interface DispenseItemBehavior {
if (!event.getItem().equals(craftItem)) {
// Chain to handler for new item
ItemStack eventStack = CraftItemStack.asNMSCopy(event.getItem());
- DispenseItemBehavior idispensebehavior = (DispenseItemBehavior) DispenserBlock.DISPENSER_REGISTRY.get(eventStack.getItem());
- if (idispensebehavior != DispenseItemBehavior.NOOP && idispensebehavior != EquipmentDispenseItemBehavior.INSTANCE) {
+ DispenseItemBehavior idispensebehavior = DispenserBlock.getDispenseBehavior(pointer, eventStack); // Paper - Fix NPE with equippable and items without behavior
+ if (idispensebehavior != DispenseItemBehavior.NOOP && idispensebehavior != EquipmentDispenseItemBehavior.INSTANCE && idispensebehavior != this) { // Paper - fix possible StackOverflowError
idispensebehavior.dispense(pointer, eventStack);
return stack;
}
diff --git a/src/main/java/net/minecraft/core/dispenser/EquipmentDispenseItemBehavior.java b/src/main/java/net/minecraft/core/dispenser/EquipmentDispenseItemBehavior.java
index a03cc350973fda213251cad273a2db86f438904b..a43ea83dbbd5946096cdde31af766674bda6c3be 100644
--- a/src/main/java/net/minecraft/core/dispenser/EquipmentDispenseItemBehavior.java
+++ b/src/main/java/net/minecraft/core/dispenser/EquipmentDispenseItemBehavior.java
@@ -23,10 +23,15 @@ public class EquipmentDispenseItemBehavior extends DefaultDispenseItemBehavior {
@Override
protected ItemStack execute(BlockSource pointer, ItemStack stack) {
- return EquipmentDispenseItemBehavior.dispenseEquipment(pointer, stack) ? stack : super.execute(pointer, stack);
+ return EquipmentDispenseItemBehavior.dispenseEquipment(pointer, stack, this) ? stack : super.execute(pointer, stack); // Paper - fix possible StackOverflowError
}
- public static boolean dispenseEquipment(BlockSource pointer, ItemStack stack) {
+ @Deprecated @io.papermc.paper.annotation.DoNotUse // Paper
+ public static boolean dispenseEquipment(BlockSource pointer, ItemStack armor) {
+ // Paper start
+ return dispenseEquipment(pointer, armor, null);
+ }
+ public static boolean dispenseEquipment(BlockSource pointer, ItemStack stack, @javax.annotation.Nullable DispenseItemBehavior currentBehavior) {
BlockPos blockposition = pointer.pos().relative((Direction) pointer.state().getValue(DispenserBlock.FACING));
List<LivingEntity> list = pointer.level().getEntitiesOfClass(LivingEntity.class, new AABB(blockposition), (entityliving) -> {
return entityliving.canEquipWithDispenser(stack);
@@ -58,8 +63,8 @@ public class EquipmentDispenseItemBehavior extends DefaultDispenseItemBehavior {
stack.grow(1);
// Chain to handler for new item
ItemStack eventStack = CraftItemStack.asNMSCopy(event.getItem());
- DispenseItemBehavior idispensebehavior = (DispenseItemBehavior) DispenserBlock.DISPENSER_REGISTRY.get(eventStack.getItem());
- if (idispensebehavior != DispenseItemBehavior.NOOP && idispensebehavior != EquipmentDispenseItemBehavior.INSTANCE) {
+ DispenseItemBehavior idispensebehavior = DispenserBlock.getDispenseBehavior(pointer, eventStack); // Paper - Fix NPE with equippable and items without behavior
+ if (idispensebehavior != DispenseItemBehavior.NOOP && (currentBehavior == null || idispensebehavior != currentBehavior)) { // Paper - fix possible StackOverflowError
idispensebehavior.dispense(pointer, eventStack);
return true;
}
diff --git a/src/main/java/net/minecraft/core/dispenser/MinecartDispenseItemBehavior.java b/src/main/java/net/minecraft/core/dispenser/MinecartDispenseItemBehavior.java
index f2e19218cf0d3b44a617c7d74f782c3e15e3f07f..aae9ec8f3bd39685b37251bef3f9ac846d65c192 100644
--- a/src/main/java/net/minecraft/core/dispenser/MinecartDispenseItemBehavior.java
+++ b/src/main/java/net/minecraft/core/dispenser/MinecartDispenseItemBehavior.java
@@ -87,7 +87,7 @@ public class MinecartDispenseItemBehavior extends DefaultDispenseItemBehavior {
stack.grow(1);
// Chain to handler for new item
ItemStack eventStack = CraftItemStack.asNMSCopy(event.getItem());
- DispenseItemBehavior idispensebehavior = (DispenseItemBehavior) DispenserBlock.DISPENSER_REGISTRY.get(eventStack.getItem());
+ DispenseItemBehavior idispensebehavior = DispenserBlock.getDispenseBehavior(pointer, eventStack); // Paper - Fix NPE with equippable and items without behavior
if (idispensebehavior != DispenseItemBehavior.NOOP && idispensebehavior != this) {
idispensebehavior.dispense(pointer, eventStack);
return stack;
diff --git a/src/main/java/net/minecraft/core/dispenser/ProjectileDispenseBehavior.java b/src/main/java/net/minecraft/core/dispenser/ProjectileDispenseBehavior.java
index a9d230d6ff22d5e3a11b2f31e7d751f44888a12c..aba0ddfc5009a11b6c5cba95a90479083643bdad 100644
--- a/src/main/java/net/minecraft/core/dispenser/ProjectileDispenseBehavior.java
+++ b/src/main/java/net/minecraft/core/dispenser/ProjectileDispenseBehavior.java
@@ -57,7 +57,7 @@ public class ProjectileDispenseBehavior extends DefaultDispenseItemBehavior {
stack.grow(1);
// Chain to handler for new item
ItemStack eventStack = CraftItemStack.asNMSCopy(event.getItem());
- DispenseItemBehavior idispensebehavior = (DispenseItemBehavior) DispenserBlock.DISPENSER_REGISTRY.get(eventStack.getItem());
+ DispenseItemBehavior idispensebehavior = DispenserBlock.getDispenseBehavior(pointer, eventStack); // Paper - Fix NPE with equippable and items without behavior
if (idispensebehavior != DispenseItemBehavior.NOOP && idispensebehavior != this) {
idispensebehavior.dispense(pointer, eventStack);
return stack;
diff --git a/src/main/java/net/minecraft/core/dispenser/ShearsDispenseItemBehavior.java b/src/main/java/net/minecraft/core/dispenser/ShearsDispenseItemBehavior.java
index f5206e4176f58cff4cfe70c94f014afebc98c589..afad4fa3ca1a3186c4569ea073f776dac16817e1 100644
--- a/src/main/java/net/minecraft/core/dispenser/ShearsDispenseItemBehavior.java
+++ b/src/main/java/net/minecraft/core/dispenser/ShearsDispenseItemBehavior.java
@@ -52,7 +52,7 @@ public class ShearsDispenseItemBehavior extends OptionalDispenseItemBehavior {
if (!event.getItem().equals(craftItem)) {
// Chain to handler for new item
ItemStack eventStack = CraftItemStack.asNMSCopy(event.getItem());
- DispenseItemBehavior idispensebehavior = (DispenseItemBehavior) DispenserBlock.DISPENSER_REGISTRY.get(eventStack.getItem());
+ DispenseItemBehavior idispensebehavior = DispenserBlock.getDispenseBehavior(pointer, eventStack); // Paper - Fix NPE with equippable and items without behavior
if (idispensebehavior != DispenseItemBehavior.NOOP && idispensebehavior != this) {
idispensebehavior.dispense(pointer, eventStack);
return stack;
diff --git a/src/main/java/net/minecraft/core/dispenser/ShulkerBoxDispenseBehavior.java b/src/main/java/net/minecraft/core/dispenser/ShulkerBoxDispenseBehavior.java
index f84987c36a16df19286d6f1badfb1ffb9cc7e770..cc85e96035f7cb2e6493b1cc4748031171d7dbee 100644
--- a/src/main/java/net/minecraft/core/dispenser/ShulkerBoxDispenseBehavior.java
+++ b/src/main/java/net/minecraft/core/dispenser/ShulkerBoxDispenseBehavior.java
@@ -48,7 +48,7 @@ public class ShulkerBoxDispenseBehavior extends OptionalDispenseItemBehavior {
if (!event.getItem().equals(craftItem)) {
// Chain to handler for new item
ItemStack eventStack = CraftItemStack.asNMSCopy(event.getItem());
- DispenseItemBehavior idispensebehavior = (DispenseItemBehavior) DispenserBlock.DISPENSER_REGISTRY.get(eventStack.getItem());
+ DispenseItemBehavior idispensebehavior = DispenserBlock.getDispenseBehavior(pointer, eventStack); // Paper - Fix NPE with equippable and items without behavior
if (idispensebehavior != DispenseItemBehavior.NOOP && idispensebehavior != this) {
idispensebehavior.dispense(pointer, eventStack);
return stack;
diff --git a/src/main/java/net/minecraft/world/level/block/DispenserBlock.java b/src/main/java/net/minecraft/world/level/block/DispenserBlock.java
index 9f99a9ec8f8269a0aeee2d6aa68f8a344f5f64b6..716d1a98775d7338a121af9fd0868a65e2c28288 100644
--- a/src/main/java/net/minecraft/world/level/block/DispenserBlock.java
+++ b/src/main/java/net/minecraft/world/level/block/DispenserBlock.java
@@ -116,6 +116,12 @@ public class DispenserBlock extends BaseEntityBlock {
}
}
+ // Paper start - Fix NPE with equippable and items without behavior
+ public static DispenseItemBehavior getDispenseBehavior(BlockSource pointer, ItemStack stack) {
+ return ((DispenserBlock) pointer.state().getBlock()).getDispenseMethod(pointer.level(), stack);
+ }
+ // Paper end - Fix NPE with equippable and items without behavior
+
public DispenseItemBehavior getDispenseMethod(Level world, ItemStack stack) {
if (!stack.isItemEnabled(world.enabledFeatures())) {
return DispenserBlock.DEFAULT_BEHAVIOR;
diff --git a/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java b/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java
index 96b901d07718d8926a2175925e867b4417c3947c..418e67ef5896325fe143501f5a4f1604b065ba0f 100644
--- a/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java
+++ b/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java
@@ -2232,7 +2232,7 @@ public class CraftEventFactory {
if (!event.getItem().equals(craftItem)) {
// Chain to handler for new item
ItemStack eventStack = CraftItemStack.asNMSCopy(event.getItem());
- net.minecraft.core.dispenser.DispenseItemBehavior itemBehavior = net.minecraft.world.level.block.DispenserBlock.DISPENSER_REGISTRY.get(eventStack.getItem());
+ net.minecraft.core.dispenser.DispenseItemBehavior itemBehavior = net.minecraft.world.level.block.DispenserBlock.getDispenseBehavior(pointer, eventStack); // Paper - Fix NPE with equippable and items without behavior
if (itemBehavior != net.minecraft.core.dispenser.DispenseItemBehavior.NOOP && itemBehavior != instance) {
itemBehavior.dispense(pointer, eventStack);
return itemStack;

95
patches/server/0936-Fix-possible-StackOverflowError-for-some-dispenses.patch
View file

@ -1,95 +0,0 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Jake Potrebic <jake.m.potrebic@gmail.com>
Date: Sat, 29 Oct 2022 17:02:42 -0700
Subject: [PATCH] Fix possible StackOverflowError for some dispenses
For saddles, carpets, horse armor, and chests for horse-likes
a BlockDispenseEvent handler that always mutated the item without
changing the type would result in a SO error because when it went
to find the replacement dispense behavior (since the item "changed")
it didn't properly handle if the replacement was the same instance
of dispense behavior.
Additionally equippable mob heads, wither skulls, and carved pumpkins
are subject to the same possible error.
diff --git a/src/main/java/net/minecraft/core/dispenser/DispenseItemBehavior.java b/src/main/java/net/minecraft/core/dispenser/DispenseItemBehavior.java
index 18304349c9ab24657c4152aff800dba969174665..63b8c806b6ee0ea3cc5e6a7f613b5e57c94bfcf1 100644
--- a/src/main/java/net/minecraft/core/dispenser/DispenseItemBehavior.java
+++ b/src/main/java/net/minecraft/core/dispenser/DispenseItemBehavior.java
@@ -232,7 +232,7 @@ public interface DispenseItemBehavior {
// Chain to handler for new item
ItemStack eventStack = CraftItemStack.asNMSCopy(event.getItem());
DispenseItemBehavior idispensebehavior = (DispenseItemBehavior) DispenserBlock.DISPENSER_REGISTRY.get(eventStack.getItem());
- if (idispensebehavior != DispenseItemBehavior.NOOP && idispensebehavior != EquipmentDispenseItemBehavior.INSTANCE) {
+ if (idispensebehavior != DispenseItemBehavior.NOOP && idispensebehavior != EquipmentDispenseItemBehavior.INSTANCE && idispensebehavior != this) { // Paper - fix possible StackOverflowError
idispensebehavior.dispense(pointer, eventStack);
return stack;
}
@@ -283,7 +283,7 @@ public interface DispenseItemBehavior {
// Chain to handler for new item
ItemStack eventStack = CraftItemStack.asNMSCopy(event.getItem());
DispenseItemBehavior idispensebehavior = (DispenseItemBehavior) DispenserBlock.DISPENSER_REGISTRY.get(eventStack.getItem());
- if (idispensebehavior != DispenseItemBehavior.NOOP && idispensebehavior != EquipmentDispenseItemBehavior.INSTANCE) {
+ if (idispensebehavior != DispenseItemBehavior.NOOP && idispensebehavior != EquipmentDispenseItemBehavior.INSTANCE && idispensebehavior != this) { // Paper - fix possible StackOverflowError
idispensebehavior.dispense(pointer, eventStack);
return stack;
}
@@ -645,7 +645,7 @@ public interface DispenseItemBehavior {
stack.shrink(1);
this.setSuccess(true);
} else {
- this.setSuccess(EquipmentDispenseItemBehavior.dispenseEquipment(pointer, stack));
+ this.setSuccess(EquipmentDispenseItemBehavior.dispenseEquipment(pointer, stack, this)); // Paper - fix possible StackOverflowError
}
return stack;
@@ -691,7 +691,7 @@ public interface DispenseItemBehavior {
stack.shrink(1);
this.setSuccess(true);
} else {
- this.setSuccess(EquipmentDispenseItemBehavior.dispenseEquipment(pointer, stack));
+ this.setSuccess(EquipmentDispenseItemBehavior.dispenseEquipment(pointer, stack, this)); // Paper - fix possible StackOverflowError
}
return stack;
@@ -819,7 +819,7 @@ public interface DispenseItemBehavior {
// Chain to handler for new item
ItemStack eventStack = CraftItemStack.asNMSCopy(event.getItem());
DispenseItemBehavior idispensebehavior = (DispenseItemBehavior) DispenserBlock.DISPENSER_REGISTRY.get(eventStack.getItem());
- if (idispensebehavior != DispenseItemBehavior.NOOP && idispensebehavior != EquipmentDispenseItemBehavior.INSTANCE) {
+ if (idispensebehavior != DispenseItemBehavior.NOOP && idispensebehavior != EquipmentDispenseItemBehavior.INSTANCE && idispensebehavior != this) { // Paper - fix possible StackOverflowError
idispensebehavior.dispense(pointer, eventStack);
return stack;
}
diff --git a/src/main/java/net/minecraft/core/dispenser/EquipmentDispenseItemBehavior.java b/src/main/java/net/minecraft/core/dispenser/EquipmentDispenseItemBehavior.java
index a03cc350973fda213251cad273a2db86f438904b..036dd3b15dfee4cd079710eba1255d2bdb4d7220 100644
--- a/src/main/java/net/minecraft/core/dispenser/EquipmentDispenseItemBehavior.java
+++ b/src/main/java/net/minecraft/core/dispenser/EquipmentDispenseItemBehavior.java
@@ -23,10 +23,15 @@ public class EquipmentDispenseItemBehavior extends DefaultDispenseItemBehavior {
@Override
protected ItemStack execute(BlockSource pointer, ItemStack stack) {
- return EquipmentDispenseItemBehavior.dispenseEquipment(pointer, stack) ? stack : super.execute(pointer, stack);
+ return EquipmentDispenseItemBehavior.dispenseEquipment(pointer, stack, null) ? stack : super.execute(pointer, stack); // Paper - fix possible StackOverflowError
}
- public static boolean dispenseEquipment(BlockSource pointer, ItemStack stack) {
+ @Deprecated @io.papermc.paper.annotation.DoNotUse // Paper
+ public static boolean dispenseEquipment(BlockSource pointer, ItemStack armor) {
+ // Paper start
+ return dispenseEquipment(pointer, armor, null);
+ }
+ public static boolean dispenseEquipment(BlockSource pointer, ItemStack stack, @javax.annotation.Nullable DispenseItemBehavior currentBehavior) {
BlockPos blockposition = pointer.pos().relative((Direction) pointer.state().getValue(DispenserBlock.FACING));
List<LivingEntity> list = pointer.level().getEntitiesOfClass(LivingEntity.class, new AABB(blockposition), (entityliving) -> {
return entityliving.canEquipWithDispenser(stack);
@@ -59,7 +64,7 @@ public class EquipmentDispenseItemBehavior extends DefaultDispenseItemBehavior {
// Chain to handler for new item
ItemStack eventStack = CraftItemStack.asNMSCopy(event.getItem());
DispenseItemBehavior idispensebehavior = (DispenseItemBehavior) DispenserBlock.DISPENSER_REGISTRY.get(eventStack.getItem());
- if (idispensebehavior != DispenseItemBehavior.NOOP && idispensebehavior != EquipmentDispenseItemBehavior.INSTANCE) {
+ if (idispensebehavior != DispenseItemBehavior.NOOP && (currentBehavior == null || idispensebehavior != EquipmentDispenseItemBehavior.INSTANCE)) { // Paper - fix possible StackOverflowError
idispensebehavior.dispense(pointer, eventStack);
return true;
}

6
patches/server/0940-Properly-track-the-changed-item-from-dispense-events.patch
View file

@ -5,7 +5,7 @@ Subject: [PATCH] Properly track the changed item from dispense events
diff --git a/src/main/java/net/minecraft/core/dispenser/DispenseItemBehavior.java b/src/main/java/net/minecraft/core/dispenser/DispenseItemBehavior.java
index 63b8c806b6ee0ea3cc5e6a7f613b5e57c94bfcf1..cd77e86ff289634d2dd1c56002e569ff70d15f25 100644
index 94b2647f69035dce9a3d56b6978e3884e06c5583..a09b089565f9167e1a2d53116ae879d9f868342e 100644
--- a/src/main/java/net/minecraft/core/dispenser/DispenseItemBehavior.java
+++ b/src/main/java/net/minecraft/core/dispenser/DispenseItemBehavior.java
@@ -129,10 +129,14 @@ public interface DispenseItemBehavior {
@ -72,7 +72,7 @@ index 63b8c806b6ee0ea3cc5e6a7f613b5e57c94bfcf1..cd77e86ff289634d2dd1c56002e569ff
} else {
return this.defaultDispenseItemBehavior.dispense(pointer, stack);
diff --git a/src/main/java/net/minecraft/core/dispenser/ProjectileDispenseBehavior.java b/src/main/java/net/minecraft/core/dispenser/ProjectileDispenseBehavior.java
index a9d230d6ff22d5e3a11b2f31e7d751f44888a12c..af222679d0d44d24b2b10455eb52fa8a797ca28a 100644
index aba0ddfc5009a11b6c5cba95a90479083643bdad..b341792b694e4d6d7ca98061976b8857d83c4233 100644
--- a/src/main/java/net/minecraft/core/dispenser/ProjectileDispenseBehavior.java
+++ b/src/main/java/net/minecraft/core/dispenser/ProjectileDispenseBehavior.java
@@ -64,7 +64,7 @@ public class ProjectileDispenseBehavior extends DefaultDispenseItemBehavior {
@ -85,7 +85,7 @@ index a9d230d6ff22d5e3a11b2f31e7d751f44888a12c..af222679d0d44d24b2b10455eb52fa8a
// itemstack.shrink(1); // CraftBukkit - Handled during event processing
// CraftBukkit end
diff --git a/src/main/java/net/minecraft/core/dispenser/ShulkerBoxDispenseBehavior.java b/src/main/java/net/minecraft/core/dispenser/ShulkerBoxDispenseBehavior.java
index f84987c36a16df19286d6f1badfb1ffb9cc7e770..8e089f7d5e7fa9ddeccd0691185555f279d55426 100644
index cc85e96035f7cb2e6493b1cc4748031171d7dbee..16b435216dc7c6a3f8c1c0f9e2323e6afb3a6cb9 100644
--- a/src/main/java/net/minecraft/core/dispenser/ShulkerBoxDispenseBehavior.java
+++ b/src/main/java/net/minecraft/core/dispenser/ShulkerBoxDispenseBehavior.java
@@ -57,7 +57,12 @@ public class ShulkerBoxDispenseBehavior extends OptionalDispenseItemBehavior {

2
patches/server/0948-Fix-helmet-damage-reduction-inconsistencies.patch
View file

@ -7,7 +7,7 @@ Affect the falling stalactite damage type where the
reduction is not applied like in Vanilla
diff --git a/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java b/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java
index 96b901d07718d8926a2175925e867b4417c3947c..6c60bb4f4d1133844a4232df518c062216847fdc 100644
index 418e67ef5896325fe143501f5a4f1604b065ba0f..1e98f68e51618606f1178c12be77c1a945362630 100644
--- a/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java
+++ b/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java
@@ -1226,7 +1226,7 @@ public class CraftEventFactory {

2
patches/server/1017-Fix-InventoryOpenEvent-cancellation.patch
View file

@ -183,7 +183,7 @@ index 673a92d383db463b5c4e2ac3a4ecbd7e97c15c6d..6a2123cd808fa79f3cdb1cb56632d29b
return InteractionResult.SUCCESS;
diff --git a/src/main/java/net/minecraft/world/level/block/DispenserBlock.java b/src/main/java/net/minecraft/world/level/block/DispenserBlock.java
index a02f24448b002824b068278fa427003008c0d0f1..0427d590912561cb4f0354715e4ac513e53b3eb3 100644
index 716d1a98775d7338a121af9fd0868a65e2c28288..b2243e883388d1c12480e470c391bb97b993b77d 100644
--- a/src/main/java/net/minecraft/world/level/block/DispenserBlock.java
+++ b/src/main/java/net/minecraft/world/level/block/DispenserBlock.java
@@ -80,8 +80,9 @@ public class DispenserBlock extends BaseEntityBlock {