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Paper/patches/server/0939-Don-t-fire-sync-events-during-worldgen.patch
Nassim Jahnke 2641c02193
Updated Upstream (Bukkit/CraftBukkit) 
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:
69fa4695 Add some missing deprecation annotations
f850da2e Update Maven plugins/versions
8d8400db Use regular compiler seeing as ECJ doesn't support Java 21 JRE
c29e1688 Revert "BUILDTOOLS-676: Downgrade Maven compiler version"
07bce714 SPIGOT-7355: More field renames and fixes
6a8ea764 Fix bad merge in penultimate commit
50a7920c Fix imports in previous commit
83640dd1 PR-995: Add required feature to MinecraftExperimental for easy lookups
fc1f96cf BUILDTOOLS-676: Downgrade Maven compiler version

CraftBukkit Changes:
90f1059ba Fix item placement
661afb43c SPIGOT-7633: Clearer error message for missing particle data
807b465b3 SPIGOT-7634: Armadillo updates infrequently
590cf09a8 Fix unit tests always seeing Mojang server as unavailable
7c7ac5eb2 SPIGOT-7636: Fix clearing ItemMeta
4a72905cf SPIGOT-7635: Fix Player#transfer and cookie methods
ebb50e136 Fix incorrect Vault implementation
b33fed8b7 Update Maven plugins/versions
6f00f0608 SPIGOT-7632: Control middle clicking chest does not copy contents
db821f405 Use regular compiler seeing as ECJ doesn't support Java 21 JRE
8a2976737 Revert "BUILDTOOLS-676: Downgrade Maven compiler version"
0297f87bb SPIGOT-7355: More field renames and fixes
2d03bdf6a SPIGOT-7629: Fix loading banner patterns
e77951fac Fix equality of deserialized display names
c66f3e4fd SPIGOT-7631: Fix deserialisation of BlockStateMeta
9c2c7be8d SPIGOT-7630: Fix crash saving unticked leashed entities
8c1e7c841 PR-1384: Disable certain PlayerProfile tests, if Mojang's services or internet are not available
ced93d572 SPIGOT-7626: sendSignChange() has no effect
c77362cae SPIGOT-7625: ItemStack with lore cannot be serialized in 1.20.5
ff2004387 SPIGOT-7620: Fix server crash when hoppers transfer items to double chests
8b4abeb03 BUILDTOOLS-676: Downgrade Maven compiler version
2024-04-25 23:23:57 +02:00

209 lines
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Raw Blame History

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Jake Potrebic <jake.m.potrebic@gmail.com>
Date: Thu, 23 Nov 2023 10:33:25 -0800
Subject: [PATCH] Don't fire sync events during worldgen
Fixes EntityPotionEffectEvent
Fixes EntityPoseChangeEvent
Asynchronous chunk generation provides an opportunity for things
to happen async that previously fired synchronous-only events. This
patch is for mitigating those issues by various methods.
Also fixes correctly marking/clearing the entity generation flag.
This patch sets the generation flag anytime an entity is created
via StructureTemplate before loading from NBT to catch uses of
the flag during the loading logic. This patch clears the generation
flag from an entity when added to a ServerLevel for the situation
where generation happened directly to a ServerLevel and the
entity still has the flag set.
diff --git a/src/main/java/net/minecraft/server/level/ServerLevel.java b/src/main/java/net/minecraft/server/level/ServerLevel.java
index 601ddb8a2ed1559a3c439c1aca49f772ffdd092a..6e7f98fd7b43b46171c3cd58ed91b53960bd0d8a 100644
--- a/src/main/java/net/minecraft/server/level/ServerLevel.java
+++ b/src/main/java/net/minecraft/server/level/ServerLevel.java
@@ -1232,6 +1232,7 @@ public class ServerLevel extends Level implements WorldGenLevel {
// CraftBukkit start
private boolean addEntity(Entity entity, CreatureSpawnEvent.SpawnReason spawnReason) {
org.spigotmc.AsyncCatcher.catchOp("entity add"); // Spigot
+ entity.generation = false; // Paper - Don't fire sync event during generation; Reset flag if it was added during a ServerLevel generation process
// Paper start - extra debug info
if (entity.valid) {
MinecraftServer.LOGGER.error("Attempted Double World add on {}", entity, new Throwable());
diff --git a/src/main/java/net/minecraft/world/entity/Entity.java b/src/main/java/net/minecraft/world/entity/Entity.java
index acf2cc8afaf4dee193ecf3bfc4a39b8c39ffc376..ee38f76e46c20e9fadfb5d4d602b7b82a8a22e51 100644
--- a/src/main/java/net/minecraft/world/entity/Entity.java
+++ b/src/main/java/net/minecraft/world/entity/Entity.java
@@ -650,7 +650,11 @@ public abstract class Entity implements SyncedDataHolder, Nameable, EntityAccess
if (pose == this.getPose()) {
return;
}
- this.level.getCraftServer().getPluginManager().callEvent(new EntityPoseChangeEvent(this.getBukkitEntity(), Pose.values()[pose.ordinal()]));
+ // Paper start - Don't fire sync event during generation
+ if (!this.generation) {
+ this.level.getCraftServer().getPluginManager().callEvent(new EntityPoseChangeEvent(this.getBukkitEntity(), Pose.values()[pose.ordinal()]));
+ }
+ // Paper end - Don't fire sync event during generation
// CraftBukkit end
this.entityData.set(Entity.DATA_POSE, pose);
}
diff --git a/src/main/java/net/minecraft/world/entity/EntityType.java b/src/main/java/net/minecraft/world/entity/EntityType.java
index d769dc472d3f12bf1e30ddd767a76659b734caac..8c7cc9c5af0b8d8bef9b6e2d3d3e723cd76f3212 100644
--- a/src/main/java/net/minecraft/world/entity/EntityType.java
+++ b/src/main/java/net/minecraft/world/entity/EntityType.java
@@ -592,9 +592,15 @@ public class EntityType<T extends Entity> implements FeatureElement, EntityTypeT
}
public static Optional<Entity> create(CompoundTag nbt, Level world) {
+ // Paper start - Don't fire sync event during generation
+ return create(nbt, world, false);
+ }
+ public static Optional<Entity> create(CompoundTag nbt, Level world, boolean generation) {
+ // Paper end - Don't fire sync event during generation
return Util.ifElse(EntityType.by(nbt).map((entitytypes) -> {
return entitytypes.create(world);
}), (entity) -> {
+ if (generation) entity.generation = true; // Paper - Don't fire sync event during generation
entity.load(nbt);
}, () -> {
EntityType.LOGGER.warn("Skipping Entity with id {}", nbt.getString("id"));
diff --git a/src/main/java/net/minecraft/world/entity/LivingEntity.java b/src/main/java/net/minecraft/world/entity/LivingEntity.java
index a8b168f56c74feeaca55335731b1d485289736cb..281d2f3df347e911eee459e06b917a0e075078e9 100644
--- a/src/main/java/net/minecraft/world/entity/LivingEntity.java
+++ b/src/main/java/net/minecraft/world/entity/LivingEntity.java
@@ -1163,6 +1163,11 @@ public abstract class LivingEntity extends Entity implements Attackable {
}
public boolean addEffect(MobEffectInstance mobeffect, @Nullable Entity entity, EntityPotionEffectEvent.Cause cause) {
+ // Paper start - Don't fire sync event during generation
+ return this.addEffect(mobeffect, entity, cause, true);
+ }
+ public boolean addEffect(MobEffectInstance mobeffect, @Nullable Entity entity, EntityPotionEffectEvent.Cause cause, boolean fireEvent) {
+ // Paper end - Don't fire sync event during generation
// org.spigotmc.AsyncCatcher.catchOp("effect add"); // Spigot // Paper - move to API
if (this.isTickingEffects) {
this.effectsToProcess.add(new ProcessableEffect(mobeffect, cause));
@@ -1182,10 +1187,13 @@ public abstract class LivingEntity extends Entity implements Attackable {
override = new MobEffectInstance(mobeffect1).update(mobeffect);
}
+ if (fireEvent) { // Paper - Don't fire sync event during generation
EntityPotionEffectEvent event = CraftEventFactory.callEntityPotionEffectChangeEvent(this, mobeffect1, mobeffect, cause, override);
+ override = event.isOverride(); // Paper - Don't fire sync event during generation
if (event.isCancelled()) {
return false;
}
+ } // Paper - Don't fire sync event during generation
// CraftBukkit end
if (mobeffect1 == null) {
@@ -1194,7 +1202,7 @@ public abstract class LivingEntity extends Entity implements Attackable {
flag = true;
mobeffect.onEffectAdded(this);
// CraftBukkit start
- } else if (event.isOverride()) {
+ } else if (override) { // Paper - Don't fire sync event during generation
mobeffect1.update(mobeffect);
this.onEffectUpdated(mobeffect1, true, entity);
// CraftBukkit end
diff --git a/src/main/java/net/minecraft/world/entity/monster/Spider.java b/src/main/java/net/minecraft/world/entity/monster/Spider.java
index 6006480d9f6d60bb7b5628eabe6740013066cde4..f0127f1b55999aa4a841341ad02cbcde45702b50 100644
--- a/src/main/java/net/minecraft/world/entity/monster/Spider.java
+++ b/src/main/java/net/minecraft/world/entity/monster/Spider.java
@@ -172,7 +172,7 @@ public class Spider extends Monster {
Holder<MobEffect> holder = entityspider_groupdataspider.effect;
if (holder != null) {
- this.addEffect(new MobEffectInstance(holder, -1), org.bukkit.event.entity.EntityPotionEffectEvent.Cause.SPIDER_SPAWN); // CraftBukkit
+ this.addEffect(new MobEffectInstance(holder, -1), null, org.bukkit.event.entity.EntityPotionEffectEvent.Cause.SPIDER_SPAWN, world instanceof net.minecraft.server.level.ServerLevel); // CraftBukkit
}
}
diff --git a/src/main/java/net/minecraft/world/level/levelgen/structure/templatesystem/StructureTemplate.java b/src/main/java/net/minecraft/world/level/levelgen/structure/templatesystem/StructureTemplate.java
index b5365dce7882c98b5be4f5df877165eee80933dd..9b4e2f96299bb12af7090ef70ac158c825d49d19 100644
--- a/src/main/java/net/minecraft/world/level/levelgen/structure/templatesystem/StructureTemplate.java
+++ b/src/main/java/net/minecraft/world/level/levelgen/structure/templatesystem/StructureTemplate.java
@@ -525,7 +525,7 @@ public class StructureTemplate {
private static Optional<Entity> createEntityIgnoreException(ServerLevelAccessor world, CompoundTag nbt) {
// CraftBukkit start
// try {
- return EntityType.create(nbt, world.getLevel());
+ return EntityType.create(nbt, world.getLevel(), true); // Paper - Don't fire sync event during generation
// } catch (Exception exception) {
// return Optional.empty();
// }
diff --git a/src/main/java/org/bukkit/craftbukkit/util/DelegatedGeneratorAccess.java b/src/main/java/org/bukkit/craftbukkit/util/DelegatedGeneratorAccess.java
index 0794d92c42b0db6b367505ae28f09f1fd39fa312..cd7f1309cf01a5f01a28aded03a36fe15adb1756 100644
--- a/src/main/java/org/bukkit/craftbukkit/util/DelegatedGeneratorAccess.java
+++ b/src/main/java/org/bukkit/craftbukkit/util/DelegatedGeneratorAccess.java
@@ -92,15 +92,17 @@ public abstract class DelegatedGeneratorAccess implements WorldGenLevel {
return this.handle.getLevel();
}
- @Override
- public void addFreshEntityWithPassengers(Entity arg0, CreatureSpawnEvent.SpawnReason arg1) {
- this.handle.addFreshEntityWithPassengers(arg0, arg1);
- }
-
- @Override
- public void addFreshEntityWithPassengers(Entity entity) {
- this.handle.addFreshEntityWithPassengers(entity);
- }
+ // Paper start - Don't fire sync event during generation; don't override these methods so all entities are run through addFreshEntity
+ // @Override
+ // public void addFreshEntityWithPassengers(Entity arg0, CreatureSpawnEvent.SpawnReason arg1) {
+ // this.handle.addFreshEntityWithPassengers(arg0, arg1);
+ // }
+ //
+ // @Override
+ // public void addFreshEntityWithPassengers(Entity entity) {
+ // this.handle.addFreshEntityWithPassengers(entity);
+ // }
+ // Paper end - Don't fire sync event during generation; don't override these methods
@Override
public ServerLevel getMinecraftWorld() {
diff --git a/src/main/java/org/bukkit/craftbukkit/util/TransformerGeneratorAccess.java b/src/main/java/org/bukkit/craftbukkit/util/TransformerGeneratorAccess.java
index 35ecf6f824aca56a20280dd683123df1d0c7d66e..1d1fdcf10498c421f106158254e052da6d68d8a5 100644
--- a/src/main/java/org/bukkit/craftbukkit/util/TransformerGeneratorAccess.java
+++ b/src/main/java/org/bukkit/craftbukkit/util/TransformerGeneratorAccess.java
@@ -39,21 +39,23 @@ public class TransformerGeneratorAccess extends DelegatedGeneratorAccess {
return super.addFreshEntity(arg0, arg1);
}
- @Override
- public void addFreshEntityWithPassengers(Entity entity) {
- if (this.structureTransformer != null && !this.structureTransformer.transformEntity(entity)) {
- return;
- }
- super.addFreshEntityWithPassengers(entity);
- }
-
- @Override
- public void addFreshEntityWithPassengers(Entity arg0, SpawnReason arg1) {
- if (this.structureTransformer != null && !this.structureTransformer.transformEntity(arg0)) {
- return;
- }
- super.addFreshEntityWithPassengers(arg0, arg1);
- }
+ // Paper start - Don't fire sync event during generation; don't override these methods so all entities are run through addFreshEntity
+ // @Override
+ // public void addFreshEntityWithPassengers(Entity entity) {
+ // if (this.structureTransformer != null && !this.structureTransformer.transformEntity(entity)) {
+ // return;
+ // }
+ // super.addFreshEntityWithPassengers(entity);
+ // }
+ //
+ // @Override
+ // public void addFreshEntityWithPassengers(Entity arg0, SpawnReason arg1) {
+ // if (this.structureTransformer != null && !this.structureTransformer.transformEntity(arg0)) {
+ // return;
+ // }
+ // super.addFreshEntityWithPassengers(arg0, arg1);
+ // }
+ // Paper end - Don't fire sync event during generation; don't override these methods
public boolean setCraftBlock(BlockPos position, CraftBlockState craftBlockState, int i, int j) {
if (this.structureTransformer != null) {
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