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PaperMC/patches/api/0449-Clone-mutables-to-prevent-unexpected-issues.patch

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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Jake Potrebic <jake.m.potrebic@gmail.com>
Date: Sat, 16 Mar 2024 11:10:48 -0700
Subject: [PATCH] Clone mutables to prevent unexpected issues
There are lots of locations in the API where mutable
types are not cloned, either on return or when passed
as a parameter and assigned to a field, which can cause
unexpected behaviors. Let this be a lesson to use
immutable types for simple things Location, Vector, and
others.
diff --git a/src/main/java/org/bukkit/event/block/BlockCanBuildEvent.java b/src/main/java/org/bukkit/event/block/BlockCanBuildEvent.java
2024-12-03 17:58:41 +01:00
index 31fd64187fc5bd50a5ba36b3b68001ce6ff2211c..f5923049bfd0478938dafa76287db76f8a4c29f9 100644
--- a/src/main/java/org/bukkit/event/block/BlockCanBuildEvent.java
+++ b/src/main/java/org/bukkit/event/block/BlockCanBuildEvent.java
@@ -102,7 +102,7 @@ public class BlockCanBuildEvent extends BlockEvent {
*/
@NotNull
public BlockData getBlockData() {
- return blockData;
+ return blockData.clone(); // Paper - clone because mutation isn't used
}
/**
diff --git a/src/main/java/org/bukkit/event/entity/EntityChangeBlockEvent.java b/src/main/java/org/bukkit/event/entity/EntityChangeBlockEvent.java
index 1a9575ad4c81aefa5ef0b927f6ac8f7064b55c49..24e1a49e48dd8f9eb2515b2ffe472a0c4d2bc09b 100644
--- a/src/main/java/org/bukkit/event/entity/EntityChangeBlockEvent.java
+++ b/src/main/java/org/bukkit/event/entity/EntityChangeBlockEvent.java
@@ -61,7 +61,7 @@ public class EntityChangeBlockEvent extends EntityEvent implements Cancellable {
*/
@NotNull
public BlockData getBlockData() {
- return to;
+ return to.clone(); // Paper - clone because mutation isn't used
}
@NotNull
diff --git a/src/main/java/org/bukkit/event/entity/EntityExplodeEvent.java b/src/main/java/org/bukkit/event/entity/EntityExplodeEvent.java
Updated Upstream (Bukkit/CraftBukkit/Spigot) (#11102) 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: 3a3bea52 SPIGOT-7829: Increase maximum outgoing plugin message size to match Vanilla intention 5cd1c8cb SPIGOT-7831: Add CreatureSpawnEvent.SpawnReason#POTION_EFFECT a8e278f0 SPIGOT-7827: Sync EntityPortalEvent with PlayerPortalEvent since non-players can now create portals 53729d12 Remove spurious ApiStatus.Internal annotation b9f57486 SPIGOT-7799, PR-1039: Expose explosion world interaction in EntityExplodeEvent and BlockExplodeEvent 7983b966 PR-1029: Trial changing a small number of inner enums to classes/interfaces to better support custom values CraftBukkit Changes: 403accd56 SPIGOT-7831: Add CreatureSpawnEvent.SpawnReason#POTION_EFFECT 812761660 Increase outdated build delay bed1e3ff6 SPIGOT-7827: Sync EntityPortalEvent with PlayerPortalEvent since non-players can now create portals 2444c8b23 SPIGOT-7823: Suspicious sand and gravel material are not marked as having gravity correctly aceddcd0b SPIGOT-7820: Enum changes - duplicate method name a0d2d6a84 SPIGOT-7813: Material#isInteractable() always returns false 8fd64b091 SPIGOT-7806: Handle both loot and inventory item drop behaviour in PlayerDeathEvent a4ee40b74 SPIGOT-7799, PR-1436: Expose explosion world interaction in EntityExplodeEvent and BlockExplodeEvent 082aa51c5 PR-1424: Trial changing a small number of inner enums to classes/interfaces to better support custom values 66e78a96b SPIGOT-7815: Consider EntityDamageEvent status for Wolf armor damage Spigot Changes: 5bbef5ad SPIGOT-7834: Modify max value for generic.max_absorption
2024-07-18 10:13:20 +02:00
index 50161d313cfcc9e61441589685c3d0e1f057dd86..e468e55d426b8f81f87c0a08451d02b3866c226f 100644
--- a/src/main/java/org/bukkit/event/entity/EntityExplodeEvent.java
+++ b/src/main/java/org/bukkit/event/entity/EntityExplodeEvent.java
Updated Upstream (Bukkit/CraftBukkit/Spigot) (#11102) 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: 3a3bea52 SPIGOT-7829: Increase maximum outgoing plugin message size to match Vanilla intention 5cd1c8cb SPIGOT-7831: Add CreatureSpawnEvent.SpawnReason#POTION_EFFECT a8e278f0 SPIGOT-7827: Sync EntityPortalEvent with PlayerPortalEvent since non-players can now create portals 53729d12 Remove spurious ApiStatus.Internal annotation b9f57486 SPIGOT-7799, PR-1039: Expose explosion world interaction in EntityExplodeEvent and BlockExplodeEvent 7983b966 PR-1029: Trial changing a small number of inner enums to classes/interfaces to better support custom values CraftBukkit Changes: 403accd56 SPIGOT-7831: Add CreatureSpawnEvent.SpawnReason#POTION_EFFECT 812761660 Increase outdated build delay bed1e3ff6 SPIGOT-7827: Sync EntityPortalEvent with PlayerPortalEvent since non-players can now create portals 2444c8b23 SPIGOT-7823: Suspicious sand and gravel material are not marked as having gravity correctly aceddcd0b SPIGOT-7820: Enum changes - duplicate method name a0d2d6a84 SPIGOT-7813: Material#isInteractable() always returns false 8fd64b091 SPIGOT-7806: Handle both loot and inventory item drop behaviour in PlayerDeathEvent a4ee40b74 SPIGOT-7799, PR-1436: Expose explosion world interaction in EntityExplodeEvent and BlockExplodeEvent 082aa51c5 PR-1424: Trial changing a small number of inner enums to classes/interfaces to better support custom values 66e78a96b SPIGOT-7815: Consider EntityDamageEvent status for Wolf armor damage Spigot Changes: 5bbef5ad SPIGOT-7834: Modify max value for generic.max_absorption
2024-07-18 10:13:20 +02:00
@@ -72,7 +72,7 @@ public class EntityExplodeEvent extends EntityEvent implements Cancellable {
*/
@NotNull
public Location getLocation() {
- return location;
+ return location.clone(); // Paper - clone to avoid changes
}
/**
diff --git a/src/main/java/org/bukkit/event/entity/EntityPortalEnterEvent.java b/src/main/java/org/bukkit/event/entity/EntityPortalEnterEvent.java
index d3724db0a5a67cde15b05fecd32b2ca370cca998..8b2caf665b9e829ceefc89bf41b192f53f3d5773 100644
--- a/src/main/java/org/bukkit/event/entity/EntityPortalEnterEvent.java
+++ b/src/main/java/org/bukkit/event/entity/EntityPortalEnterEvent.java
@@ -35,7 +35,7 @@ public class EntityPortalEnterEvent extends EntityEvent implements org.bukkit.ev
*/
@NotNull
public Location getLocation() {
- return location;
+ return location.clone(); // Paper - clone to avoid changes
}
// Paper start
diff --git a/src/main/java/org/bukkit/event/entity/ItemDespawnEvent.java b/src/main/java/org/bukkit/event/entity/ItemDespawnEvent.java
index 6fc66197eb2c5d59c70d8d028b7963748371edbe..2bb29fa449cd6c90b52d2786ed15b6154d591607 100644
--- a/src/main/java/org/bukkit/event/entity/ItemDespawnEvent.java
+++ b/src/main/java/org/bukkit/event/entity/ItemDespawnEvent.java
@@ -46,7 +46,7 @@ public class ItemDespawnEvent extends EntityEvent implements Cancellable {
*/
@NotNull
public Location getLocation() {
- return location;
+ return location.clone(); // Paper - clone to avoid changes
}
@NotNull
diff --git a/src/main/java/org/bukkit/event/vehicle/VehicleBlockCollisionEvent.java b/src/main/java/org/bukkit/event/vehicle/VehicleBlockCollisionEvent.java
index d0a437bd8aeec18f800893f51ece06deb0c8972c..50fad23cf4d9f591b12a9eaebeb4e26f18e8528d 100644
--- a/src/main/java/org/bukkit/event/vehicle/VehicleBlockCollisionEvent.java
+++ b/src/main/java/org/bukkit/event/vehicle/VehicleBlockCollisionEvent.java
@@ -31,7 +31,7 @@ public class VehicleBlockCollisionEvent extends VehicleCollisionEvent {
*/
@NotNull
public org.bukkit.util.Vector getVelocity() {
- return velocity;
+ return velocity.clone();
}
// Paper end
diff --git a/src/main/java/org/bukkit/event/vehicle/VehicleMoveEvent.java b/src/main/java/org/bukkit/event/vehicle/VehicleMoveEvent.java
index 7bfb84d3948c773e943374316ea25a19288ec7d0..fc4cf7b21b24fe38617fa150f697bc29da76754e 100644
--- a/src/main/java/org/bukkit/event/vehicle/VehicleMoveEvent.java
+++ b/src/main/java/org/bukkit/event/vehicle/VehicleMoveEvent.java
@@ -27,7 +27,7 @@ public class VehicleMoveEvent extends VehicleEvent {
*/
@NotNull
public Location getFrom() {
- return from;
+ return from.clone(); // Paper - clone to avoid changes
}
/**
@@ -37,7 +37,7 @@ public class VehicleMoveEvent extends VehicleEvent {
*/
@NotNull
public Location getTo() {
- return to;
+ return to.clone(); // Paper - clone to avoid changes
}
diff --git a/src/main/java/org/bukkit/event/world/GenericGameEvent.java b/src/main/java/org/bukkit/event/world/GenericGameEvent.java
index 2a2a329877d8da45c2d6afecf78ce88d52635cad..fb975fefc74d8c9746cab4c02860f55654cf92f7 100644
--- a/src/main/java/org/bukkit/event/world/GenericGameEvent.java
+++ b/src/main/java/org/bukkit/event/world/GenericGameEvent.java
@@ -49,7 +49,7 @@ public class GenericGameEvent extends WorldEvent implements Cancellable {
*/
@NotNull
public Location getLocation() {
- return location;
+ return location.clone(); // Paper - clone to avoid changes
}
/**
diff --git a/src/main/java/org/bukkit/event/world/SpawnChangeEvent.java b/src/main/java/org/bukkit/event/world/SpawnChangeEvent.java
index 9ce93d00935446589cb2bb970cb540d109616e85..73997ae04ff39ac3984c59de32aaced9eb72ce16 100644
--- a/src/main/java/org/bukkit/event/world/SpawnChangeEvent.java
+++ b/src/main/java/org/bukkit/event/world/SpawnChangeEvent.java
@@ -25,7 +25,7 @@ public class SpawnChangeEvent extends WorldEvent {
*/
@NotNull
public Location getPreviousLocation() {
- return previousLocation;
+ return previousLocation.clone(); // Paper - clone to avoid changes
}
@NotNull
diff --git a/src/main/java/org/bukkit/event/world/StructureGrowEvent.java b/src/main/java/org/bukkit/event/world/StructureGrowEvent.java
index 7af8d6e51c824cf0592b722b834f1d4986e3cc08..783e74bc382f0f6d24203fde7b811f588a674731 100644
--- a/src/main/java/org/bukkit/event/world/StructureGrowEvent.java
+++ b/src/main/java/org/bukkit/event/world/StructureGrowEvent.java
@@ -39,7 +39,7 @@ public class StructureGrowEvent extends WorldEvent implements Cancellable {
*/
@NotNull
public Location getLocation() {
- return location;
+ return location.clone(); // Paper - clone to avoid changes
}
/**