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even moar patches

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Jake Potrebic 2022-06-07 21:39:43 -07:00
parent f04e64dfc6
commit c3fc3de622
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17 changed files with 78 additions and 85 deletions
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50
patches/unapplied/server/0391-Reduce-memory-footprint-of-NBTTagCompound.patch
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@ -1,50 +0,0 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Spottedleaf <spottedleaf@spottedleaf.dev>
Date: Mon, 6 Apr 2020 17:39:25 -0700
Subject: [PATCH] Reduce memory footprint of NBTTagCompound
Fastutil maps are going to have a lower memory footprint - which
is important because we clone chunk data after reading it for safety.
So, reduce the impact of the clone on GC.
diff --git a/src/main/java/net/minecraft/nbt/CompoundTag.java b/src/main/java/net/minecraft/nbt/CompoundTag.java
index b965af563f2cb1508d138e4d48e97a44873c4bb9..0778fdd4f47015787f7ffbfb39c31ec0e1c039bd 100644
--- a/src/main/java/net/minecraft/nbt/CompoundTag.java
+++ b/src/main/java/net/minecraft/nbt/CompoundTag.java
@@ -34,7 +34,7 @@ public class CompoundTag implements Tag {
if (i > 512) {
throw new RuntimeException("Tried to read NBT tag with too high complexity, depth > 512");
} else {
- Map<String, Tag> map = Maps.newHashMap();
+ it.unimi.dsi.fastutil.objects.Object2ObjectOpenHashMap<String, Tag> map = new it.unimi.dsi.fastutil.objects.Object2ObjectOpenHashMap<>(8, 0.8f); // Paper - reduce memory footprint of NBTTagCompound
byte b;
while((b = CompoundTag.readNamedTagType(dataInput, nbtAccounter)) != 0) {
@@ -128,7 +128,7 @@ public class CompoundTag implements Tag {
}
public CompoundTag() {
- this(Maps.newHashMap());
+ this(new it.unimi.dsi.fastutil.objects.Object2ObjectOpenHashMap<>(8, 0.8f)); // Paper - reduce memory footprint of NBTTagCompound
}
@Override
@@ -434,8 +434,16 @@ public class CompoundTag implements Tag {
@Override
public CompoundTag copy() {
- Map<String, Tag> map = Maps.newHashMap(Maps.transformValues(this.tags, Tag::copy));
- return new CompoundTag(map);
+ // Paper start - reduce memory footprint of NBTTagCompound
+ it.unimi.dsi.fastutil.objects.Object2ObjectOpenHashMap<String, Tag> ret = new it.unimi.dsi.fastutil.objects.Object2ObjectOpenHashMap<>(this.tags.size(), 0.8f);
+ java.util.Iterator<java.util.Map.Entry<String, Tag>> iterator = (this.tags instanceof it.unimi.dsi.fastutil.objects.Object2ObjectOpenHashMap) ? ((it.unimi.dsi.fastutil.objects.Object2ObjectOpenHashMap)this.tags).object2ObjectEntrySet().fastIterator() : this.tags.entrySet().iterator();
+ while (iterator.hasNext()) {
+ Map.Entry<String, Tag> entry = iterator.next();
+ ret.put(entry.getKey(), entry.getValue().copy());
+ }
+
+ return new CompoundTag(ret);
+ // Paper end - reduce memory footprint of NBTTagCompound
}
@Override

50
patches/unapplied/server/0392-Prevent-opening-inventories-when-frozen.patch
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@ -1,50 +0,0 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Shane Freeder <theboyetronic@gmail.com>
Date: Mon, 13 Apr 2020 07:31:44 +0100
Subject: [PATCH] Prevent opening inventories when frozen
diff --git a/src/main/java/net/minecraft/server/level/ServerPlayer.java b/src/main/java/net/minecraft/server/level/ServerPlayer.java
index 888e127e7e59a7ceb63f12ec69046916a0e29fc9..45cf2059ea31d3c5c14b9c931a3a65dd3d76c627 100644
--- a/src/main/java/net/minecraft/server/level/ServerPlayer.java
+++ b/src/main/java/net/minecraft/server/level/ServerPlayer.java
@@ -612,7 +612,7 @@ public class ServerPlayer extends Player {
containerUpdateDelay = level.paperConfig.containerUpdateTickRate;
}
// Paper end
- if (!this.level.isClientSide && !this.containerMenu.stillValid(this)) {
+ if (!this.level.isClientSide && this.containerMenu != this.inventoryMenu && (isImmobile() || !this.containerMenu.stillValid(this))) { // Paper - auto close while frozen
this.closeContainer(org.bukkit.event.inventory.InventoryCloseEvent.Reason.CANT_USE); // Paper
this.containerMenu = this.inventoryMenu;
}
@@ -1483,7 +1483,7 @@ public class ServerPlayer extends Player {
} else {
// CraftBukkit start
this.containerMenu = container;
- this.connection.send(new ClientboundOpenScreenPacket(container.containerId, container.getType(), container.getTitle()));
+ if (!isImmobile()) this.connection.send(new ClientboundOpenScreenPacket(container.containerId, container.getType(), container.getTitle())); // Paper
// CraftBukkit end
this.initMenu(container);
return OptionalInt.of(this.containerCounter);
diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftHumanEntity.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftHumanEntity.java
index a6ac2fdcda24ec031d5d2ea9e4492614171acb1e..08625a587c23394b344fed139abfcd82a3185aaf 100644
--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftHumanEntity.java
+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftHumanEntity.java
@@ -322,7 +322,7 @@ public class CraftHumanEntity extends CraftLivingEntity implements HumanEntity {
if (adventure$title == null) adventure$title = net.kyori.adventure.text.serializer.legacy.LegacyComponentSerializer.legacySection().deserialize(container.getBukkitView().getTitle()); // Paper
//player.playerConnection.sendPacket(new PacketPlayOutOpenWindow(container.windowId, windowType, CraftChatMessage.fromString(title)[0])); // Paper // Paper - comment
- player.connection.send(new ClientboundOpenScreenPacket(container.containerId, windowType, io.papermc.paper.adventure.PaperAdventure.asVanilla(adventure$title))); // Paper
+ if (!player.isImmobile()) player.connection.send(new ClientboundOpenScreenPacket(container.containerId, windowType, io.papermc.paper.adventure.PaperAdventure.asVanilla(adventure$title))); // Paper
player.containerMenu = container;
player.initMenu(container);
}
@@ -396,7 +396,7 @@ public class CraftHumanEntity extends CraftLivingEntity implements HumanEntity {
net.kyori.adventure.text.Component adventure$title = inventory.title(); // Paper
if (adventure$title == null) adventure$title = net.kyori.adventure.text.serializer.legacy.LegacyComponentSerializer.legacySection().deserialize(inventory.getTitle()); // Paper
//player.playerConnection.sendPacket(new PacketPlayOutOpenWindow(container.windowId, windowType, CraftChatMessage.fromString(title)[0])); // Paper - comment
- player.connection.send(new ClientboundOpenScreenPacket(container.containerId, windowType, io.papermc.paper.adventure.PaperAdventure.asVanilla(adventure$title))); // Paper
+ if (!player.isImmobile()) player.connection.send(new ClientboundOpenScreenPacket(container.containerId, windowType, io.papermc.paper.adventure.PaperAdventure.asVanilla(adventure$title))); // Paper
player.containerMenu = container;
player.initMenu(container);
}

88
patches/unapplied/server/0393-Optimise-ArraySetSorted-removeIf.patch
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@ -1,88 +0,0 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Spottedleaf <Spottedleaf@users.noreply.github.com>
Date: Wed, 15 Apr 2020 18:23:28 -0700
Subject: [PATCH] Optimise ArraySetSorted#removeIf
Remove iterator allocation and ensure the call is always O(n)
diff --git a/src/main/java/net/minecraft/server/level/DistanceManager.java b/src/main/java/net/minecraft/server/level/DistanceManager.java
index 6228f2f67541da62b0ae093de987662db9643740..8376439e36f0f75779d0fbefbe50b215a40c42aa 100644
--- a/src/main/java/net/minecraft/server/level/DistanceManager.java
+++ b/src/main/java/net/minecraft/server/level/DistanceManager.java
@@ -86,13 +86,27 @@ public abstract class DistanceManager {
protected void purgeStaleTickets() {
++this.ticketTickCounter;
ObjectIterator objectiterator = this.tickets.long2ObjectEntrySet().fastIterator();
+ // Paper start - use optimised removeIf
+ long[] currChunk = new long[1];
+ long ticketCounter = DistanceManager.this.ticketTickCounter;
+ java.util.function.Predicate<Ticket<?>> removeIf = (ticket) -> {
+ final boolean ret = ticket.timedOut(ticketCounter);
+ if (ret) {
+ this.tickingTicketsTracker.removeTicket(currChunk[0], ticket);
+ }
+ return ret;
+ };
+ // Paper end - use optimised removeIf
while (objectiterator.hasNext()) {
Entry<SortedArraySet<Ticket<?>>> entry = (Entry) objectiterator.next();
- Iterator<Ticket<?>> iterator = ((SortedArraySet) entry.getValue()).iterator();
- boolean flag = false;
+ // Paper start - use optimised removeIf
+ Iterator<Ticket<?>> iterator = null;
+ currChunk[0] = entry.getLongKey();
+ boolean flag = entry.getValue().removeIf(removeIf);
- while (iterator.hasNext()) {
+ while (false && iterator.hasNext()) {
+ // Paper end - use optimised removeIf
Ticket<?> ticket = (Ticket) iterator.next();
if (ticket.timedOut(this.ticketTickCounter)) {
diff --git a/src/main/java/net/minecraft/util/SortedArraySet.java b/src/main/java/net/minecraft/util/SortedArraySet.java
index d1b2ba24ef54e01c6249c3b2ca16e80f03c001a6..5f1c4c6b9e36f2d6ec43b82cc0e2cae24b800dc4 100644
--- a/src/main/java/net/minecraft/util/SortedArraySet.java
+++ b/src/main/java/net/minecraft/util/SortedArraySet.java
@@ -22,6 +22,41 @@ public class SortedArraySet<T> extends AbstractSet<T> {
this.contents = (T[])castRawArray(new Object[initialCapacity]);
}
}
+ // Paper start - optimise removeIf
+ @Override
+ public boolean removeIf(java.util.function.Predicate<? super T> filter) {
+ // prev. impl used an iterator, which could be n^2 and creates garbage
+ int i = 0, len = this.size;
+ T[] backingArray = this.contents;
+
+ for (;;) {
+ if (i >= len) {
+ return false;
+ }
+ if (!filter.test(backingArray[i])) {
+ ++i;
+ continue;
+ }
+ break;
+ }
+
+ // we only want to write back to backingArray if we really need to
+
+ int lastIndex = i; // this is where new elements are shifted to
+
+ for (; i < len; ++i) {
+ T curr = backingArray[i];
+ if (!filter.test(curr)) { // if test throws we're screwed
+ backingArray[lastIndex++] = curr;
+ }
+ }
+
+ // cleanup end
+ Arrays.fill(backingArray, lastIndex, len, null);
+ this.size = lastIndex;
+ return true;
+ }
+ // Paper end - optimise removeIf
public static <T extends Comparable<T>> SortedArraySet<T> create() {
return create(10);

30
patches/unapplied/server/0394-Don-t-run-entity-collision-code-if-not-needed.patch
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@ -1,30 +0,0 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Spottedleaf <Spottedleaf@users.noreply.github.com>
Date: Wed, 15 Apr 2020 17:56:07 -0700
Subject: [PATCH] Don't run entity collision code if not needed
Will not run if max entity craming is disabled and
the max collisions per entity is less than or equal to 0
diff --git a/src/main/java/net/minecraft/world/entity/LivingEntity.java b/src/main/java/net/minecraft/world/entity/LivingEntity.java
index b28689f2621ee7d5129ab6d1853d9ee8823bf1d0..e9efb18ac776cdf92b967aa400d5d112d0481dfc 100644
--- a/src/main/java/net/minecraft/world/entity/LivingEntity.java
+++ b/src/main/java/net/minecraft/world/entity/LivingEntity.java
@@ -3280,10 +3280,16 @@ public abstract class LivingEntity extends Entity {
protected void serverAiStep() {}
protected void pushEntities() {
+ // Paper start - don't run getEntities if we're not going to use its result
+ int i = this.level.getGameRules().getInt(GameRules.RULE_MAX_ENTITY_CRAMMING);
+ if (i <= 0 && level.paperConfig.maxCollisionsPerEntity <= 0) {
+ return;
+ }
+ // Paper end - don't run getEntities if we're not going to use its result
List<Entity> list = this.level.getEntities((Entity) this, this.getBoundingBox(), EntitySelector.pushableBy(this));
if (!list.isEmpty()) {
- int i = this.level.getGameRules().getInt(GameRules.RULE_MAX_ENTITY_CRAMMING);
+ // Paper - move up
int j;
if (i > 0 && list.size() > i - 1 && this.random.nextInt(4) == 0) {

152
patches/unapplied/server/0395-Implement-Player-Client-Options-API.patch
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@ -1,152 +0,0 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: MiniDigger <admin@benndorf.dev>
Date: Mon, 20 Jan 2020 21:38:15 +0100
Subject: [PATCH] Implement Player Client Options API
diff --git a/src/main/java/com/destroystokyo/paper/PaperSkinParts.java b/src/main/java/com/destroystokyo/paper/PaperSkinParts.java
new file mode 100644
index 0000000000000000000000000000000000000000..b6f4400df3d8ec7e06a996de54f8cabba57885e1
--- /dev/null
+++ b/src/main/java/com/destroystokyo/paper/PaperSkinParts.java
@@ -0,0 +1,74 @@
+package com.destroystokyo.paper;
+
+import com.google.common.base.Objects;
+
+import java.util.StringJoiner;
+
+public class PaperSkinParts implements SkinParts {
+
+ private final int raw;
+
+ public PaperSkinParts(int raw) {
+ this.raw = raw;
+ }
+
+ public boolean hasCapeEnabled() {
+ return (raw & 1) == 1;
+ }
+
+ public boolean hasJacketEnabled() {
+ return (raw >> 1 & 1) == 1;
+ }
+
+ public boolean hasLeftSleeveEnabled() {
+ return (raw >> 2 & 1) == 1;
+ }
+
+ public boolean hasRightSleeveEnabled() {
+ return (raw >> 3 & 1) == 1;
+ }
+
+ public boolean hasLeftPantsEnabled() {
+ return (raw >> 4 & 1) == 1;
+ }
+
+ public boolean hasRightPantsEnabled() {
+ return (raw >> 5 & 1) == 1;
+ }
+
+ public boolean hasHatsEnabled() {
+ return (raw >> 6 & 1) == 1;
+ }
+
+ @Override
+ public int getRaw() {
+ return raw;
+ }
+
+ @Override
+ public boolean equals(Object o) {
+ if (this == o) return true;
+ if (o == null || getClass() != o.getClass()) return false;
+ PaperSkinParts that = (PaperSkinParts) o;
+ return raw == that.raw;
+ }
+
+ @Override
+ public int hashCode() {
+ return Objects.hashCode(raw);
+ }
+
+ @Override
+ public String toString() {
+ return new StringJoiner(", ", PaperSkinParts.class.getSimpleName() + "[", "]")
+ .add("raw=" + raw)
+ .add("cape=" + hasCapeEnabled())
+ .add("jacket=" + hasJacketEnabled())
+ .add("leftSleeve=" + hasLeftSleeveEnabled())
+ .add("rightSleeve=" + hasRightSleeveEnabled())
+ .add("leftPants=" + hasLeftPantsEnabled())
+ .add("rightPants=" + hasRightPantsEnabled())
+ .add("hats=" + hasHatsEnabled())
+ .toString();
+ }
+}
diff --git a/src/main/java/net/minecraft/server/level/ServerPlayer.java b/src/main/java/net/minecraft/server/level/ServerPlayer.java
index 45cf2059ea31d3c5c14b9c931a3a65dd3d76c627..bb5b947c92c91768c59bc1ca7c61560a923a1329 100644
--- a/src/main/java/net/minecraft/server/level/ServerPlayer.java
+++ b/src/main/java/net/minecraft/server/level/ServerPlayer.java
@@ -1834,6 +1834,7 @@ public class ServerPlayer extends Player {
public String locale = null; // CraftBukkit - add, lowercase // Paper - default to null
public java.util.Locale adventure$locale = java.util.Locale.US; // Paper
public void updateOptions(ServerboundClientInformationPacket packet) {
+ new com.destroystokyo.paper.event.player.PlayerClientOptionsChangeEvent(getBukkitEntity(), packet.language, packet.viewDistance, com.destroystokyo.paper.ClientOption.ChatVisibility.valueOf(packet.chatVisibility().name()), packet.chatColors(), new com.destroystokyo.paper.PaperSkinParts(packet.modelCustomisation()), packet.mainHand() == HumanoidArm.LEFT ? MainHand.LEFT : MainHand.RIGHT).callEvent(); // Paper - settings event
// CraftBukkit start
if (getMainArm() != packet.mainHand()) {
PlayerChangedMainHandEvent event = new PlayerChangedMainHandEvent(this.getBukkitEntity(), getMainArm() == HumanoidArm.LEFT ? MainHand.LEFT : MainHand.RIGHT);
diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
index c539620e56e05398d0fd0c6f3d721609398f3834..83a4457d6be91efda74d05268dac83c8194cea78 100644
--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
@@ -577,6 +577,24 @@ public class CraftPlayer extends CraftHumanEntity implements Player {
public void setSendViewDistance(int viewDistance) {
throw new NotImplementedException("Per-Player View Distance APIs need further understanding to properly implement (There are per world view distances though!)"); // TODO
}
+
+ @Override
+ public <T> T getClientOption(com.destroystokyo.paper.ClientOption<T> type) {
+ if(com.destroystokyo.paper.ClientOption.SKIN_PARTS.equals(type)) {
+ return type.getType().cast(new com.destroystokyo.paper.PaperSkinParts(getHandle().getEntityData().get(net.minecraft.world.entity.player.Player.DATA_PLAYER_MODE_CUSTOMISATION)));
+ } else if(com.destroystokyo.paper.ClientOption.CHAT_COLORS_ENABLED.equals(type)) {
+ return type.getType().cast(getHandle().canChatInColor());
+ } else if(com.destroystokyo.paper.ClientOption.CHAT_VISIBILITY.equals(type)) {
+ return type.getType().cast(getHandle().getChatVisibility() == null ? com.destroystokyo.paper.ClientOption.ChatVisibility.UNKNOWN : com.destroystokyo.paper.ClientOption.ChatVisibility.valueOf(getHandle().getChatVisibility().name()));
+ } else if(com.destroystokyo.paper.ClientOption.LOCALE.equals(type)) {
+ return type.getType().cast(getLocale());
+ } else if(com.destroystokyo.paper.ClientOption.MAIN_HAND.equals(type)) {
+ return type.getType().cast(getMainHand());
+ } else if(com.destroystokyo.paper.ClientOption.VIEW_DISTANCE.equals(type)) {
+ return type.getType().cast(getClientViewDistance());
+ }
+ throw new RuntimeException("Unknown settings type");
+ }
// Paper end
@Override
diff --git a/src/test/java/io/papermc/paper/world/TranslationKeyTest.java b/src/test/java/io/papermc/paper/world/TranslationKeyTest.java
new file mode 100644
index 0000000000000000000000000000000000000000..6cd015dc5a2e012ac827c2b2d9aa5542b0591afb
--- /dev/null
+++ b/src/test/java/io/papermc/paper/world/TranslationKeyTest.java
@@ -0,0 +1,19 @@
+package io.papermc.paper.world;
+
+import com.destroystokyo.paper.ClientOption;
+import net.minecraft.network.chat.TranslatableComponent;
+import net.minecraft.world.entity.player.ChatVisiblity;
+import org.bukkit.Difficulty;
+import org.junit.Assert;
+import org.junit.Test;
+
+public class TranslationKeyTest {
+
+ @Test
+ public void testChatVisibilityKeys() {
+ for (ClientOption.ChatVisibility chatVisibility : ClientOption.ChatVisibility.values()) {
+ if (chatVisibility == ClientOption.ChatVisibility.UNKNOWN) continue;
+ Assert.assertEquals(chatVisibility + "'s translation key doesn't match", ChatVisiblity.valueOf(chatVisibility.name()).getKey(), chatVisibility.translationKey());
+ }
+ }
+}

23
patches/unapplied/server/0396-Don-t-crash-if-player-is-attempted-to-be-removed-fro.patch
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@ -1,23 +0,0 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Sat, 18 Apr 2020 15:59:41 -0400
Subject: [PATCH] Don't crash if player is attempted to be removed from
untracked chunk.
I suspect it deals with teleporting as it uses players current x/y/z
diff --git a/src/main/java/net/minecraft/server/level/DistanceManager.java b/src/main/java/net/minecraft/server/level/DistanceManager.java
index 8376439e36f0f75779d0fbefbe50b215a40c42aa..4a9d0fca55b71f817defcb4286154c0a47bede03 100644
--- a/src/main/java/net/minecraft/server/level/DistanceManager.java
+++ b/src/main/java/net/minecraft/server/level/DistanceManager.java
@@ -300,8 +300,8 @@ public abstract class DistanceManager {
ObjectSet<ServerPlayer> objectset = (ObjectSet) this.playersPerChunk.get(i);
if (objectset == null) return; // CraftBukkit - SPIGOT-6208
- objectset.remove(player);
- if (objectset.isEmpty()) {
+ if (objectset != null) objectset.remove(player); // Paper - some state corruption happens here, don't crash, clean up gracefully.
+ if (objectset == null || objectset.isEmpty()) { // Paper
this.playersPerChunk.remove(i);
this.naturalSpawnChunkCounter.update(i, Integer.MAX_VALUE, false);
this.playerTicketManager.update(i, Integer.MAX_VALUE, false);

21
patches/unapplied/server/0397-Broadcast-join-message-to-console.patch
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@ -1,21 +0,0 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: AvrooVulcan <avrovulcan.programming@gmail.com>
Date: Fri, 17 Apr 2020 00:15:23 +0100
Subject: [PATCH] Broadcast join message to console
diff --git a/src/main/java/net/minecraft/server/players/PlayerList.java b/src/main/java/net/minecraft/server/players/PlayerList.java
index 936742383a6834bfd687ec48db308475f598d216..923d86766ee31f590909e398dc86b69529c29f42 100644
--- a/src/main/java/net/minecraft/server/players/PlayerList.java
+++ b/src/main/java/net/minecraft/server/players/PlayerList.java
@@ -293,7 +293,9 @@ public abstract class PlayerList {
if (jm != null && !jm.equals(net.kyori.adventure.text.Component.empty())) { // Paper - Adventure
joinMessage = PaperAdventure.asVanilla(jm); // Paper - Adventure
- this.server.getPlayerList().broadcastAll(new ClientboundChatPacket(joinMessage, ChatType.SYSTEM, Util.NIL_UUID)); // Paper - Adventure
+ // Paper start - Removed sendAll for loop and broadcasted to console also
+ this.server.getPlayerList().broadcastMessage(joinMessage, ChatType.SYSTEM, Util.NIL_UUID); // Paper - Adventure
+ // Paper end
}
// CraftBukkit end

73
patches/unapplied/server/0398-Fix-Chunk-Post-Processing-deadlock-risk.patch
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@ -1,73 +0,0 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Sat, 18 Apr 2020 04:36:11 -0400
Subject: [PATCH] Fix Chunk Post Processing deadlock risk
See: https://gist.github.com/aikar/dd22bbd2a3d78a2fd3d92e95e9f28dc6
as part of post processing a chunk, we can call ChunkConverter.
ChunkConverter then kicks off major physics updates, and when blocks
that have connections across chunk boundaries occur, a recursive risk
can occur where A updates a block that triggers a physics request.
That physics request may trigger a chunk request, that then enqueues
a task into the Mailbox ChunkTaskQueueSorter.
If anything requests that same chunk that is in the middle of conversion,
it's mailbox queue is going to be held up, so the subsequent chunk request
will be unable to proceed.
We delay post processing of Chunk.A() 1 "pass" by re stuffing it back into
the executor so that the mailbox ChunkQueue is now considered empty.
This successfully fixed a reoccurring and highly reproducible crash
for heightmaps.
diff --git a/src/main/java/net/minecraft/server/level/ChunkMap.java b/src/main/java/net/minecraft/server/level/ChunkMap.java
index 7776c22744cdd31459e9634d1d549bdf2876e04f..43e5e148f1289ff5e42311981c597c66d98447aa 100644
--- a/src/main/java/net/minecraft/server/level/ChunkMap.java
+++ b/src/main/java/net/minecraft/server/level/ChunkMap.java
@@ -178,6 +178,7 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider
};
// CraftBukkit end
+ final CallbackExecutor chunkLoadConversionCallbackExecutor = new CallbackExecutor(); // Paper
// Paper start - distance maps
private final com.destroystokyo.paper.util.misc.PooledLinkedHashSets<ServerPlayer> pooledLinkedPlayerHashSets = new com.destroystokyo.paper.util.misc.PooledLinkedHashSets<>();
@@ -995,16 +996,15 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider
});
CompletableFuture<Either<LevelChunk, ChunkHolder.ChunkLoadingFailure>> completablefuture1 = completablefuture.thenApplyAsync((either) -> {
return either.mapLeft((list) -> {
- return (LevelChunk) list.get(list.size() / 2);
- });
- }, (runnable) -> {
- this.mainThreadMailbox.tell(ChunkTaskPriorityQueueSorter.message(holder, runnable));
- }).thenApplyAsync((either) -> {
- return either.ifLeft((chunk) -> {
+ // Paper start - revert 1.18.2 diff
+ final LevelChunk chunk = (LevelChunk) list.get(list.size() / 2);
chunk.postProcessGeneration();
this.level.startTickingChunk(chunk);
+ return chunk;
});
- }, this.mainThreadExecutor);
+ }, (runnable) -> {
+ this.mainThreadMailbox.tell(ChunkTaskPriorityQueueSorter.message(holder, () -> ChunkMap.this.chunkLoadConversionCallbackExecutor.execute(runnable))); // Paper - delay running Chunk post processing until outside of the sorter to prevent a deadlock scenario when post processing causes another chunk request.
+ }); // Paper end - revert 1.18.2 diff
completablefuture1.thenAcceptAsync((either) -> {
either.ifLeft((chunk) -> {
diff --git a/src/main/java/net/minecraft/server/level/ServerChunkCache.java b/src/main/java/net/minecraft/server/level/ServerChunkCache.java
index 8f1609bbb5670d3b4acccb2cb4b9238ce13290bb..cf5a5d98420c3849621bfdfae7bda7d5cb4b2dc9 100644
--- a/src/main/java/net/minecraft/server/level/ServerChunkCache.java
+++ b/src/main/java/net/minecraft/server/level/ServerChunkCache.java
@@ -1133,6 +1133,7 @@ public class ServerChunkCache extends ChunkSource {
return super.pollTask() || execChunkTask; // Paper
}
} finally {
+ chunkMap.chunkLoadConversionCallbackExecutor.run(); // Paper - Add chunk load conversion callback executor to prevent deadlock due to recursion in the chunk task queue sorter
chunkMap.callbackExecutor.run();
}
// CraftBukkit end

110
patches/unapplied/server/0399-Fix-Longstanding-Broken-behavior-of-PlayerJoinEvent.patch
View file

@ -1,110 +0,0 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Sun, 19 Apr 2020 00:05:46 -0400
Subject: [PATCH] Fix Longstanding Broken behavior of PlayerJoinEvent
For years, plugin developers have had to delay many things they do
inside of the PlayerJoinEvent by 1 tick to make it actually work.
This all boiled down to 1 reason why: The event fired before the
player was fully ready and joined to the world!
Additionally, if that player logged out on a vehicle, the event
fired before the vehicle was even loaded, so that plugins had no
access to the vehicle during this event either.
This change finally fixes this issue, fully preparing the player
into the world as a fully ready entity, vehicle included.
There should be no plugins that break because of this change, but might
improve consistency with other plugins instead.
For example, if 2 plugins listens to this event, and the first one
teleported the player in the event, then the 2nd plugin actually
would be getting a valid player!
This was very non deterministic. This change will ensure every plugin
receives a deterministic result, and should no longer require 1 tick
delays anymore.
diff --git a/src/main/java/net/minecraft/server/level/ChunkMap.java b/src/main/java/net/minecraft/server/level/ChunkMap.java
index 43e5e148f1289ff5e42311981c597c66d98447aa..f4b14d77d5c256852677bd9bc6dbda2bbe5367e3 100644
--- a/src/main/java/net/minecraft/server/level/ChunkMap.java
+++ b/src/main/java/net/minecraft/server/level/ChunkMap.java
@@ -1608,6 +1608,7 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider
.printStackTrace();
return;
}
+ if (entity instanceof ServerPlayer && ((ServerPlayer) entity).supressTrackerForLogin) return; // Delay adding to tracker until after list packets
// Paper end
if (!(entity instanceof EnderDragonPart)) {
EntityType<?> entitytypes = entity.getType();
diff --git a/src/main/java/net/minecraft/server/level/ServerPlayer.java b/src/main/java/net/minecraft/server/level/ServerPlayer.java
index bb5b947c92c91768c59bc1ca7c61560a923a1329..318bf4e1aa11798a80ae1779d744545aaa8aa6ee 100644
--- a/src/main/java/net/minecraft/server/level/ServerPlayer.java
+++ b/src/main/java/net/minecraft/server/level/ServerPlayer.java
@@ -245,6 +245,7 @@ public class ServerPlayer extends Player {
public double maxHealthCache;
public boolean joining = true;
public boolean sentListPacket = false;
+ public boolean supressTrackerForLogin = false; // Paper
public Integer clientViewDistance;
public String kickLeaveMessage = null; // SPIGOT-3034: Forward leave message to PlayerQuitEvent
// CraftBukkit end
diff --git a/src/main/java/net/minecraft/server/players/PlayerList.java b/src/main/java/net/minecraft/server/players/PlayerList.java
index 923d86766ee31f590909e398dc86b69529c29f42..c8f0bed184a0524b18385c6ef44839b90b3549dc 100644
--- a/src/main/java/net/minecraft/server/players/PlayerList.java
+++ b/src/main/java/net/minecraft/server/players/PlayerList.java
@@ -276,6 +276,12 @@ public abstract class PlayerList {
this.playersByUUID.put(player.getUUID(), player);
// this.broadcastAll(new PacketPlayOutPlayerInfo(PacketPlayOutPlayerInfo.EnumPlayerInfoAction.ADD_PLAYER, new EntityPlayer[]{entityplayer})); // CraftBukkit - replaced with loop below
+ // Paper start - correctly register player BEFORE PlayerJoinEvent, so the entity is valid and doesn't require tick delay hacks
+ player.supressTrackerForLogin = true;
+ worldserver1.addNewPlayer(player);
+ this.server.getCustomBossEvents().onPlayerConnect(player); // see commented out section below worldserver.addPlayerJoin(entityplayer);
+ mountSavedVehicle(player, worldserver1, nbttagcompound);
+ // Paper end
// CraftBukkit start
CraftPlayer bukkitPlayer = player.getBukkitEntity();
@@ -316,6 +322,8 @@ public abstract class PlayerList {
player.connection.send(new ClientboundPlayerInfoPacket(ClientboundPlayerInfoPacket.Action.ADD_PLAYER, new ServerPlayer[]{entityplayer1}));
}
player.sentListPacket = true;
+ player.supressTrackerForLogin = false; // Paper
+ ((ServerLevel)player.level).getChunkSource().chunkMap.addEntity(player); // Paper - track entity now
// CraftBukkit end
player.connection.send(new ClientboundSetEntityDataPacket(player.getId(), player.getEntityData(), true)); // CraftBukkit - BungeeCord#2321, send complete data to self on spawn
@@ -341,6 +349,11 @@ public abstract class PlayerList {
playerconnection.send(new ClientboundUpdateMobEffectPacket(player.getId(), mobeffect));
}
+ // Paper start - move vehicle into method so it can be called above - short circuit around that code
+ onPlayerJoinFinish(player, worldserver1, s1);
+ }
+ private void mountSavedVehicle(ServerPlayer player, ServerLevel worldserver1, CompoundTag nbttagcompound) {
+ // Paper end
if (nbttagcompound != null && nbttagcompound.contains("RootVehicle", 10)) {
CompoundTag nbttagcompound1 = nbttagcompound.getCompound("RootVehicle");
// CraftBukkit start
@@ -389,6 +402,10 @@ public abstract class PlayerList {
}
}
+ // Paper start
+ }
+ public void onPlayerJoinFinish(ServerPlayer player, ServerLevel worldserver1, String s1) {
+ // Paper end
player.initInventoryMenu();
// CraftBukkit - Moved from above, added world
// Paper start - Add to collideRule team if needed
@@ -398,6 +415,7 @@ public abstract class PlayerList {
scoreboard.addPlayerToTeam(player.getScoreboardName(), collideRuleTeam);
}
// Paper end
+ // CraftBukkit - Moved from above, added world
PlayerList.LOGGER.info("{}[{}] logged in with entity id {} at ([{}]{}, {}, {})", player.getName().getString(), s1, player.getId(), worldserver1.serverLevelData.getLevelName(), player.getX(), player.getY(), player.getZ());
}

262
patches/unapplied/server/0400-Load-Chunks-for-Login-Asynchronously.patch
View file

@ -1,262 +0,0 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Sun, 19 Apr 2020 04:28:29 -0400
Subject: [PATCH] Load Chunks for Login Asynchronously
diff --git a/src/main/java/net/minecraft/server/level/ServerPlayer.java b/src/main/java/net/minecraft/server/level/ServerPlayer.java
index 318bf4e1aa11798a80ae1779d744545aaa8aa6ee..f8913f10e3e24c4da7c251bc4bc0ab0820807f57 100644
--- a/src/main/java/net/minecraft/server/level/ServerPlayer.java
+++ b/src/main/java/net/minecraft/server/level/ServerPlayer.java
@@ -173,6 +173,7 @@ public class ServerPlayer extends Player {
private static final int NEUTRAL_MOB_DEATH_NOTIFICATION_RADII_XZ = 32;
private static final int NEUTRAL_MOB_DEATH_NOTIFICATION_RADII_Y = 10;
public ServerGamePacketListenerImpl connection;
+ public net.minecraft.network.Connection networkManager; // Paper
public final MinecraftServer server;
public final ServerPlayerGameMode gameMode;
private final PlayerAdvancements advancements;
@@ -246,6 +247,7 @@ public class ServerPlayer extends Player {
public boolean joining = true;
public boolean sentListPacket = false;
public boolean supressTrackerForLogin = false; // Paper
+ public boolean didPlayerJoinEvent = false; // Paper
public Integer clientViewDistance;
public String kickLeaveMessage = null; // SPIGOT-3034: Forward leave message to PlayerQuitEvent
// CraftBukkit end
diff --git a/src/main/java/net/minecraft/server/level/TicketType.java b/src/main/java/net/minecraft/server/level/TicketType.java
index be677d437d17b74c6188ce1bd5fc6fdc228fd92f..78fbb4c3e52e900956ae0811aaf934c81ee5ea48 100644
--- a/src/main/java/net/minecraft/server/level/TicketType.java
+++ b/src/main/java/net/minecraft/server/level/TicketType.java
@@ -23,6 +23,7 @@ public class TicketType<T> {
public static final TicketType<ChunkPos> FORCED = TicketType.create("forced", Comparator.comparingLong(ChunkPos::toLong));
public static final TicketType<ChunkPos> LIGHT = TicketType.create("light", Comparator.comparingLong(ChunkPos::toLong));
public static final TicketType<BlockPos> PORTAL = TicketType.create("portal", Vec3i::compareTo, 300);
+ public static final TicketType<Long> LOGIN = create("login", Long::compareTo, 100); // Paper
public static final TicketType<Integer> POST_TELEPORT = TicketType.create("post_teleport", Integer::compareTo, 5);
public static final TicketType<ChunkPos> UNKNOWN = TicketType.create("unknown", Comparator.comparingLong(ChunkPos::toLong), 1);
public static final TicketType<Unit> PLUGIN = TicketType.create("plugin", (a, b) -> 0); // CraftBukkit
diff --git a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
index d5ee915958710a65ecaf8f17d3d07e47060b3eae..31341e74ab18a8ea5110adff1e9d42b7473ca89f 100644
--- a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
+++ b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
@@ -220,6 +220,7 @@ public class ServerGamePacketListenerImpl implements ServerPlayerConnection, Ser
private static final int LATENCY_CHECK_INTERVAL = 15000;
public final Connection connection;
private final MinecraftServer server;
+ public Runnable playerJoinReady; // Paper
public ServerPlayer player;
private int tickCount;
private long keepAliveTime = Util.getMillis();
@@ -293,6 +294,15 @@ public class ServerGamePacketListenerImpl implements ServerPlayerConnection, Ser
// CraftBukkit end
public void tick() {
+ // Paper start - login async
+ Runnable playerJoinReady = this.playerJoinReady;
+ if (playerJoinReady != null) {
+ this.playerJoinReady = null;
+ playerJoinReady.run();
+ }
+ // Don't tick if not valid (dead), otherwise we load chunks below
+ if (this.player.valid) {
+ // Paper end
this.resetPosition();
this.player.xo = this.player.getX();
this.player.yo = this.player.getY();
@@ -334,7 +344,7 @@ public class ServerGamePacketListenerImpl implements ServerPlayerConnection, Ser
this.lastVehicle = null;
this.clientVehicleIsFloating = false;
this.aboveGroundVehicleTickCount = 0;
- }
+ }} // Paper - end if (valid)
this.server.getProfiler().push("keepAlive");
// Paper Start - give clients a longer time to respond to pings as per pre 1.12.2 timings
diff --git a/src/main/java/net/minecraft/server/network/ServerLoginPacketListenerImpl.java b/src/main/java/net/minecraft/server/network/ServerLoginPacketListenerImpl.java
index 4c06e62e967f28eb844d74237948834e61daeab0..0af65f1698e4ee9d94724f19b0abd61c437f18f2 100644
--- a/src/main/java/net/minecraft/server/network/ServerLoginPacketListenerImpl.java
+++ b/src/main/java/net/minecraft/server/network/ServerLoginPacketListenerImpl.java
@@ -84,7 +84,7 @@ public class ServerLoginPacketListenerImpl implements ServerLoginPacketListener
}
// Paper end
} else if (this.state == ServerLoginPacketListenerImpl.State.DELAY_ACCEPT) {
- ServerPlayer entityplayer = this.server.getPlayerList().getPlayer(this.gameProfile.getId());
+ ServerPlayer entityplayer = this.server.getPlayerList().getActivePlayer(this.gameProfile.getId()); // Paper
if (entityplayer == null) {
this.state = ServerLoginPacketListenerImpl.State.READY_TO_ACCEPT;
@@ -190,7 +190,7 @@ public class ServerLoginPacketListenerImpl implements ServerLoginPacketListener
}
this.connection.send(new ClientboundGameProfilePacket(this.gameProfile));
- ServerPlayer entityplayer = this.server.getPlayerList().getPlayer(this.gameProfile.getId());
+ ServerPlayer entityplayer = this.server.getPlayerList().getActivePlayer(this.gameProfile.getId()); // Paper
try {
ServerPlayer entityplayer1 = this.server.getPlayerList().getPlayerForLogin(this.gameProfile, s); // CraftBukkit - add player reference
diff --git a/src/main/java/net/minecraft/server/players/PlayerList.java b/src/main/java/net/minecraft/server/players/PlayerList.java
index c8f0bed184a0524b18385c6ef44839b90b3549dc..4ccb008508a008d782f0c639663b423f1a6dfdef 100644
--- a/src/main/java/net/minecraft/server/players/PlayerList.java
+++ b/src/main/java/net/minecraft/server/players/PlayerList.java
@@ -40,6 +40,7 @@ import net.minecraft.network.protocol.Packet;
import net.minecraft.network.protocol.game.ClientboundChangeDifficultyPacket;
import net.minecraft.network.protocol.game.ClientboundChatPacket;
import net.minecraft.network.protocol.game.ClientboundCustomPayloadPacket;
+import net.minecraft.network.protocol.game.ClientboundDisconnectPacket;
import net.minecraft.network.protocol.game.ClientboundEntityEventPacket;
import net.minecraft.network.protocol.game.ClientboundGameEventPacket;
import net.minecraft.network.protocol.game.ClientboundInitializeBorderPacket;
@@ -134,6 +135,7 @@ public abstract class PlayerList {
private final IpBanList ipBans;
private final ServerOpList ops;
private final UserWhiteList whitelist;
+ private final Map<UUID, ServerPlayer> pendingPlayers = Maps.newHashMap(); // Paper
// CraftBukkit start
// private final Map<UUID, ServerStatisticManager> stats;
// private final Map<UUID, AdvancementDataPlayer> advancements;
@@ -173,6 +175,11 @@ public abstract class PlayerList {
}
public void placeNewPlayer(Connection connection, ServerPlayer player) {
+ ServerPlayer prev = pendingPlayers.put(player.getUUID(), player);// Paper
+ if (prev != null) {
+ disconnectPendingPlayer(prev);
+ }
+ player.networkManager = connection; // Paper
player.loginTime = System.currentTimeMillis(); // Paper
GameProfile gameprofile = player.getGameProfile();
GameProfileCache usercache = this.server.getProfileCache();
@@ -186,7 +193,7 @@ public abstract class PlayerList {
if (nbttagcompound != null && nbttagcompound.contains("bukkit")) {
CompoundTag bukkit = nbttagcompound.getCompound("bukkit");
s = bukkit.contains("lastKnownName", 8) ? bukkit.getString("lastKnownName") : s;
- }
+ }String lastKnownName = s; // Paper
// CraftBukkit end
if (nbttagcompound != null) {
@@ -213,11 +220,15 @@ public abstract class PlayerList {
if (nbttagcompound == null) player.fudgeSpawnLocation(worldserver1); // Paper - only move to spawn on first login, otherwise, stay where you are....
player.setLevel(worldserver1);
- String s1 = "local";
+ // Paper start - make s1 final
+ final String s1;
if (connection.getRemoteAddress() != null) {
s1 = connection.getRemoteAddress().toString();
+ } else {
+ s1 = "local";
}
+ // Paper end
// Spigot start - spawn location event
Player spawnPlayer = player.getBukkitEntity();
@@ -259,6 +270,52 @@ public abstract class PlayerList {
player.getRecipeBook().sendInitialRecipeBook(player);
this.updateEntireScoreboard(worldserver1.getScoreboard(), player);
this.server.invalidateStatus();
+ // Paper start - async load spawn in chunk
+ ServerLevel finalWorldserver = worldserver1;
+ int chunkX = loc.getBlockX() >> 4;
+ int chunkZ = loc.getBlockZ() >> 4;
+ final net.minecraft.world.level.ChunkPos pos = new net.minecraft.world.level.ChunkPos(chunkX, chunkZ);
+ net.minecraft.server.level.ChunkMap playerChunkMap = worldserver1.getChunkSource().chunkMap;
+ net.minecraft.server.level.DistanceManager distanceManager = playerChunkMap.distanceManager;
+ distanceManager.addTicket(net.minecraft.server.level.TicketType.LOGIN, pos, 31, pos.toLong());
+ worldserver1.getChunkSource().runDistanceManagerUpdates();
+ worldserver1.getChunkSource().getChunkAtAsynchronously(chunkX, chunkZ, true, true).thenApply(chunk -> {
+ net.minecraft.server.level.ChunkHolder updatingChunk = playerChunkMap.getUpdatingChunkIfPresent(pos.toLong());
+ if (updatingChunk != null) {
+ return updatingChunk.getEntityTickingChunkFuture();
+ } else {
+ return java.util.concurrent.CompletableFuture.completedFuture(chunk);
+ }
+ }).thenAccept(chunk -> {
+ playerconnection.playerJoinReady = () -> {
+ postChunkLoadJoin(
+ player, finalWorldserver, connection, playerconnection,
+ nbttagcompound, s1, lastKnownName
+ );
+ };
+ });
+ }
+
+ public ServerPlayer getActivePlayer(UUID uuid) {
+ ServerPlayer player = this.playersByUUID.get(uuid);
+ return player != null ? player : pendingPlayers.get(uuid);
+ }
+
+ void disconnectPendingPlayer(ServerPlayer entityplayer) {
+ TranslatableComponent msg = new TranslatableComponent("multiplayer.disconnect.duplicate_login", new Object[0]);
+ entityplayer.networkManager.send(new ClientboundDisconnectPacket(msg), (future) -> {
+ entityplayer.networkManager.disconnect(msg);
+ entityplayer.networkManager = null;
+ });
+ }
+
+ private void postChunkLoadJoin(ServerPlayer player, ServerLevel worldserver1, Connection networkmanager, ServerGamePacketListenerImpl playerconnection, CompoundTag nbttagcompound, String s1, String s) {
+ pendingPlayers.remove(player.getUUID(), player);
+ if (!networkmanager.isConnected()) {
+ return;
+ }
+ player.didPlayerJoinEvent = true;
+ // Paper end
TranslatableComponent chatmessage;
if (player.getGameProfile().getName().equalsIgnoreCase(s)) {
@@ -502,6 +559,7 @@ public abstract class PlayerList {
protected void save(ServerPlayer player) {
if (!player.getBukkitEntity().isPersistent()) return; // CraftBukkit
+ if (!player.didPlayerJoinEvent) return; // Paper - If we never fired PJE, we disconnected during login. Data has not changed, and additionally, our saved vehicle is not loaded! If we save now, we will lose our vehicle (CraftBukkit bug)
this.playerIo.save(player);
ServerStatsCounter serverstatisticmanager = (ServerStatsCounter) player.getStats(); // CraftBukkit
@@ -529,7 +587,7 @@ public abstract class PlayerList {
}
PlayerQuitEvent playerQuitEvent = new PlayerQuitEvent(entityplayer.getBukkitEntity(), net.kyori.adventure.text.Component.translatable("multiplayer.player.left", net.kyori.adventure.text.format.NamedTextColor.YELLOW, com.destroystokyo.paper.PaperConfig.useDisplayNameInQuit ? entityplayer.getBukkitEntity().displayName() : net.kyori.adventure.text.Component.text(entityplayer.getScoreboardName())));
- this.cserver.getPluginManager().callEvent(playerQuitEvent);
+ if (entityplayer.didPlayerJoinEvent) this.cserver.getPluginManager().callEvent(playerQuitEvent); // Paper - if we disconnected before join ever fired, don't fire quit
entityplayer.getBukkitEntity().disconnect(playerQuitEvent.getQuitMessage());
if (server.isSameThread()) entityplayer.doTick(); // SPIGOT-924 // Paper - don't tick during emergency shutdowns (Watchdog)
@@ -574,6 +632,13 @@ public abstract class PlayerList {
// this.advancements.remove(uuid);
// CraftBukkit end
}
+ // Paper start
+ entityplayer1 = pendingPlayers.get(uuid);
+ if (entityplayer1 == entityplayer) {
+ pendingPlayers.remove(uuid);
+ }
+ entityplayer.networkManager = null;
+ // Paper end
// CraftBukkit start
// this.broadcastAll(new PacketPlayOutPlayerInfo(PacketPlayOutPlayerInfo.EnumPlayerInfoAction.REMOVE_PLAYER, new EntityPlayer[]{entityplayer}));
@@ -591,7 +656,7 @@ public abstract class PlayerList {
this.cserver.getScoreboardManager().removePlayer(entityplayer.getBukkitEntity());
// CraftBukkit end
- return playerQuitEvent.quitMessage(); // Paper - Adventure
+ return entityplayer.didPlayerJoinEvent ? playerQuitEvent.quitMessage() : null; // CraftBukkit // Paper - Adventure // Paper - don't print quit if we never printed join
}
// CraftBukkit start - Whole method, SocketAddress to LoginListener, added hostname to signature, return EntityPlayer
@@ -610,6 +675,13 @@ public abstract class PlayerList {
list.add(entityplayer);
}
}
+ // Paper start - check pending players too
+ entityplayer = pendingPlayers.get(uuid);
+ if (entityplayer != null) {
+ this.pendingPlayers.remove(uuid);
+ disconnectPendingPlayer(entityplayer);
+ }
+ // Paper end
Iterator iterator = list.iterator();

27
patches/unapplied/server/0401-Move-player-to-spawn-point-if-spawn-in-unloaded-worl.patch
View file

@ -1,27 +0,0 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: 2277 <38501234+2277@users.noreply.github.com>
Date: Tue, 31 Mar 2020 10:33:55 +0100
Subject: [PATCH] Move player to spawn point if spawn in unloaded world
The code following this has better support for null worlds to move
them back to the world spawn.
diff --git a/src/main/java/net/minecraft/world/entity/Entity.java b/src/main/java/net/minecraft/world/entity/Entity.java
index 384f4eabb2ebacd459e0f21e268e3dd0cd4b4d20..d387e8cc95f9f54dfbf018d4e52cde5087bfc209 100644
--- a/src/main/java/net/minecraft/world/entity/Entity.java
+++ b/src/main/java/net/minecraft/world/entity/Entity.java
@@ -2011,9 +2011,11 @@ public abstract class Entity implements Nameable, EntityAccess, CommandSource {
bworld = server.getWorld(worldName);
}
- if (bworld == null) {
- bworld = ((org.bukkit.craftbukkit.CraftServer) server).getServer().getLevel(Level.OVERWORLD).getWorld();
- }
+ // Paper start - Move player to spawn point if spawn in unloaded world
+// if (bworld == null) {
+// bworld = ((org.bukkit.craftbukkit.CraftServer) server).getServer().getWorldServer(World.OVERWORLD).getWorld();
+// }
+ // Paper end - Move player to spawn point if spawn in unloaded world
((ServerPlayer) this).setLevel(bworld == null ? null : ((CraftWorld) bworld).getHandle());
}

28
patches/unapplied/server/0402-Add-PlayerAttackEntityCooldownResetEvent.patch
View file

@ -1,28 +0,0 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: nossr50 <nossr50@gmail.com>
Date: Thu, 26 Mar 2020 19:44:50 -0700
Subject: [PATCH] Add PlayerAttackEntityCooldownResetEvent
diff --git a/src/main/java/net/minecraft/world/entity/LivingEntity.java b/src/main/java/net/minecraft/world/entity/LivingEntity.java
index e9efb18ac776cdf92b967aa400d5d112d0481dfc..960f56019313977b336cf0de9495aae8e1dc976a 100644
--- a/src/main/java/net/minecraft/world/entity/LivingEntity.java
+++ b/src/main/java/net/minecraft/world/entity/LivingEntity.java
@@ -2058,7 +2058,16 @@ public abstract class LivingEntity extends Entity {
EntityDamageEvent event = CraftEventFactory.handleLivingEntityDamageEvent(this, damagesource, originalDamage, hardHatModifier, blockingModifier, armorModifier, resistanceModifier, magicModifier, absorptionModifier, hardHat, blocking, armor, resistance, magic, absorption);
if (damagesource.getEntity() instanceof net.minecraft.world.entity.player.Player) {
- ((net.minecraft.world.entity.player.Player) damagesource.getEntity()).resetAttackStrengthTicker(); // Moved from EntityHuman in order to make the cooldown reset get called after the damage event is fired
+ // Paper start - PlayerAttackEntityCooldownResetEvent
+ if (damagesource.getEntity() instanceof ServerPlayer) {
+ ServerPlayer player = (ServerPlayer) damagesource.getEntity();
+ if (new com.destroystokyo.paper.event.player.PlayerAttackEntityCooldownResetEvent(player.getBukkitEntity(), this.getBukkitEntity(), player.getAttackStrengthScale(0F)).callEvent()) {
+ player.resetAttackStrengthTicker();
+ }
+ } else {
+ ((net.minecraft.world.entity.player.Player) damagesource.getEntity()).resetAttackStrengthTicker();
+ }
+ // Paper end
}
if (event.isCancelled()) {
return false;

28
patches/unapplied/server/0403-Don-t-fire-BlockFade-on-worldgen-threads.patch
View file

@ -1,28 +0,0 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Thu, 23 Apr 2020 01:36:39 -0400
Subject: [PATCH] Don't fire BlockFade on worldgen threads
Caused a deadlock
diff --git a/src/main/java/net/minecraft/world/level/block/FireBlock.java b/src/main/java/net/minecraft/world/level/block/FireBlock.java
index 33752432af861a708e0dbb1afafcd5968d795931..08bc35b40720ca001d3f6c1185bdd11c61ec9ee1 100644
--- a/src/main/java/net/minecraft/world/level/block/FireBlock.java
+++ b/src/main/java/net/minecraft/world/level/block/FireBlock.java
@@ -100,6 +100,7 @@ public class FireBlock extends BaseFireBlock {
@Override
public BlockState updateShape(BlockState state, Direction direction, BlockState neighborState, LevelAccessor world, BlockPos pos, BlockPos neighborPos) {
// CraftBukkit start
+ if (!(world instanceof ServerLevel)) return this.canSurvive(state, world, pos) ? (BlockState) this.getStateWithAge(world, pos, (Integer) state.getValue(FireBlock.AGE)) : Blocks.AIR.defaultBlockState(); // Paper - don't fire events in world generation
if (!this.canSurvive(state, world, pos)) {
// Suppress during worldgen
if (!(world instanceof Level)) {
@@ -115,7 +116,7 @@ public class FireBlock extends BaseFireBlock {
return blockState.getHandle();
}
}
- return this.getStateWithAge(world, pos, (Integer) state.getValue(FireBlock.AGE));
+ return this.getStateWithAge(world, pos, (Integer) state.getValue(FireBlock.AGE)); // Paper - diff on change, see "don't fire events in world generation"
// CraftBukkit end
}

59
patches/unapplied/server/0404-Add-phantom-creative-and-insomniac-controls.patch
View file

@ -1,59 +0,0 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: William Blake Galbreath <Blake.Galbreath@GMail.com>
Date: Sat, 25 Apr 2020 15:13:41 -0500
Subject: [PATCH] Add phantom creative and insomniac controls
diff --git a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
index 07a912cd9f7af3464ecd0de1d789fdcd8c56f86d..a8dd2a9beb48f464033c812d99c197332175fc09 100644
--- a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
+++ b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
@@ -689,4 +689,11 @@ public class PaperWorldConfig {
}
perPlayerMobSpawns = getBoolean("per-player-mob-spawns", true);
}
+
+ public boolean phantomIgnoreCreative = true;
+ public boolean phantomOnlyAttackInsomniacs = true;
+ private void phantomSettings() {
+ phantomIgnoreCreative = getBoolean("phantoms-do-not-spawn-on-creative-players", phantomIgnoreCreative);
+ phantomOnlyAttackInsomniacs = getBoolean("phantoms-only-attack-insomniacs", phantomOnlyAttackInsomniacs);
+ }
}
diff --git a/src/main/java/net/minecraft/world/entity/EntitySelector.java b/src/main/java/net/minecraft/world/entity/EntitySelector.java
index b91a61be7c4829fce0ff8da290eab580e20bb78d..22f36cd3df49160f1b6668befdd05c2268edaa49 100644
--- a/src/main/java/net/minecraft/world/entity/EntitySelector.java
+++ b/src/main/java/net/minecraft/world/entity/EntitySelector.java
@@ -27,6 +27,7 @@ public final class EntitySelector {
return !entity.isSpectator();
};
public static final Predicate<Entity> CAN_BE_COLLIDED_WITH = EntitySelector.NO_SPECTATORS.and(Entity::canBeCollidedWith);
+ public static Predicate<Player> isInsomniac = (player) -> net.minecraft.util.Mth.clamp(((net.minecraft.server.level.ServerPlayer) player).getStats().getValue(net.minecraft.stats.Stats.CUSTOM.get(net.minecraft.stats.Stats.TIME_SINCE_REST)), 1, Integer.MAX_VALUE) >= 72000; // Paper
private EntitySelector() {}
// Paper start
diff --git a/src/main/java/net/minecraft/world/entity/monster/Phantom.java b/src/main/java/net/minecraft/world/entity/monster/Phantom.java
index 84400bb44d5deb7c79295a83c4c3c6aac88f3175..ca9324381a60fc3072719c39918a1c16ac88799b 100644
--- a/src/main/java/net/minecraft/world/entity/monster/Phantom.java
+++ b/src/main/java/net/minecraft/world/entity/monster/Phantom.java
@@ -558,6 +558,7 @@ public class Phantom extends FlyingMob implements Enemy {
Player entityhuman = (Player) iterator.next();
if (Phantom.this.canAttack(entityhuman, TargetingConditions.DEFAULT)) {
+ if (!level.paperConfig.phantomOnlyAttackInsomniacs || EntitySelector.isInsomniac.test(entityhuman)) // Paper
Phantom.this.setTarget(entityhuman, org.bukkit.event.entity.EntityTargetEvent.TargetReason.CLOSEST_PLAYER, true); // CraftBukkit - reason
return true;
}
diff --git a/src/main/java/net/minecraft/world/level/levelgen/PhantomSpawner.java b/src/main/java/net/minecraft/world/level/levelgen/PhantomSpawner.java
index 891c12b8cfcdc7a2915955bdd08e50b5b9465e02..1e21d6cf2f03219fb2b7217c9a72bdd83c2146f7 100644
--- a/src/main/java/net/minecraft/world/level/levelgen/PhantomSpawner.java
+++ b/src/main/java/net/minecraft/world/level/levelgen/PhantomSpawner.java
@@ -51,7 +51,7 @@ public class PhantomSpawner implements CustomSpawner {
while (iterator.hasNext()) {
Player entityhuman = (Player) iterator.next();
- if (!entityhuman.isSpectator()) {
+ if (!entityhuman.isSpectator() && (!world.paperConfig.phantomIgnoreCreative || !entityhuman.isCreative())) { // Paper
BlockPos blockposition = entityhuman.blockPosition();
if (!world.dimensionType().hasSkyLight() || blockposition.getY() >= world.getSeaLevel() && world.canSeeSky(blockposition)) {

167
patches/unapplied/server/0405-Fix-numerous-item-duplication-issues-and-teleport-is.patch
View file

@ -1,167 +0,0 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Sat, 25 Apr 2020 06:46:35 -0400
Subject: [PATCH] Fix numerous item duplication issues and teleport issues
This notably fixes the newest "Donkey Dupe", but also fixes a lot
of dupe bugs in general around nether portals and entity world transfer
We also fix item duplication generically by anytime we clone an item
to drop it on the ground, destroy the source item.
This avoid an itemstack ever existing twice in the world state pre
clean up stage.
So even if something NEW comes up, it would be impossible to drop the
same item twice because the source was destroyed.
diff --git a/src/main/java/net/minecraft/world/entity/Entity.java b/src/main/java/net/minecraft/world/entity/Entity.java
index d387e8cc95f9f54dfbf018d4e52cde5087bfc209..f69bc9d81750feb108119347f984de6bca24ae44 100644
--- a/src/main/java/net/minecraft/world/entity/Entity.java
+++ b/src/main/java/net/minecraft/world/entity/Entity.java
@@ -2141,11 +2141,12 @@ public abstract class Entity implements Nameable, EntityAccess, CommandSource {
} else {
// CraftBukkit start - Capture drops for death event
if (this instanceof net.minecraft.world.entity.LivingEntity && !((net.minecraft.world.entity.LivingEntity) this).forceDrops) {
- ((net.minecraft.world.entity.LivingEntity) this).drops.add(org.bukkit.craftbukkit.inventory.CraftItemStack.asBukkitCopy(stack));
+ ((net.minecraft.world.entity.LivingEntity) this).drops.add(org.bukkit.craftbukkit.inventory.CraftItemStack.asCraftMirror(stack)); // Paper - mirror so we can destroy it later
return null;
}
// CraftBukkit end
- ItemEntity entityitem = new ItemEntity(this.level, this.getX(), this.getY() + (double) yOffset, this.getZ(), stack);
+ ItemEntity entityitem = new ItemEntity(this.level, this.getX(), this.getY() + (double) yOffset, this.getZ(), stack.copy()); // Paper - clone so we can destroy original
+ stack.setCount(0); // Paper - destroy this item - if this ever leaks due to game bugs, ensure it doesn't dupe
entityitem.setDefaultPickUpDelay();
// CraftBukkit start
@@ -2910,6 +2911,12 @@ public abstract class Entity implements Nameable, EntityAccess, CommandSource {
@Nullable
public Entity teleportTo(ServerLevel worldserver, BlockPos location) {
// CraftBukkit end
+ // Paper start - fix bad state entities causing dupes
+ if (!isAlive() || !valid) {
+ LOGGER.warn("Illegal Entity Teleport " + this + " to " + worldserver + ":" + location, new Throwable());
+ return null;
+ }
+ // Paper end
if (this.level instanceof ServerLevel && !this.isRemoved()) {
this.level.getProfiler().push("changeDimension");
// CraftBukkit start
@@ -2936,6 +2943,11 @@ public abstract class Entity implements Nameable, EntityAccess, CommandSource {
// CraftBukkit end
this.level.getProfiler().popPush("reloading");
+ // Paper start - Change lead drop timing to prevent dupe
+ if (this instanceof Mob) {
+ ((Mob) this).dropLeash(true, true); // Paper drop lead
+ }
+ // Paper end
Entity entity = this.getType().create(worldserver);
if (entity != null) {
@@ -2949,10 +2961,6 @@ public abstract class Entity implements Nameable, EntityAccess, CommandSource {
// CraftBukkit start - Forward the CraftEntity to the new entity
this.getBukkitEntity().setHandle(entity);
entity.bukkitEntity = this.getBukkitEntity();
-
- if (this instanceof Mob) {
- ((Mob) this).dropLeash(true, false); // Unleash to prevent duping of leads.
- }
// CraftBukkit end
}
@@ -3074,7 +3082,7 @@ public abstract class Entity implements Nameable, EntityAccess, CommandSource {
}
public boolean canChangeDimensions() {
- return true;
+ return isAlive() && valid; // Paper
}
public float getBlockExplosionResistance(Explosion explosion, BlockGetter world, BlockPos pos, BlockState blockState, FluidState fluidState, float max) {
diff --git a/src/main/java/net/minecraft/world/entity/LivingEntity.java b/src/main/java/net/minecraft/world/entity/LivingEntity.java
index 960f56019313977b336cf0de9495aae8e1dc976a..2b63a1cac397d80103b172477a0f3933e030e9a3 100644
--- a/src/main/java/net/minecraft/world/entity/LivingEntity.java
+++ b/src/main/java/net/minecraft/world/entity/LivingEntity.java
@@ -1622,9 +1622,9 @@ public abstract class LivingEntity extends Entity {
// Paper start
org.bukkit.event.entity.EntityDeathEvent deathEvent = this.dropAllDeathLoot(source);
if (deathEvent == null || !deathEvent.isCancelled()) {
- if (this.deathScore >= 0 && entityliving != null) {
- entityliving.awardKillScore(this, this.deathScore, source);
- }
+ // if (this.deathScore >= 0 && entityliving != null) { // Paper moved to be run earlier in #dropAllDeathLoot before destroying the drop items in CraftEventFactory#callEntityDeathEvent
+ // entityliving.awardKillScore(this, this.deathScore, source);
+ // }
// Paper start - clear equipment if event is not cancelled
if (this instanceof Mob) {
for (EquipmentSlot slot : this.clearedEquipmentSlots) {
@@ -1721,8 +1721,13 @@ public abstract class LivingEntity extends Entity {
this.dropCustomDeathLoot(source, i, flag);
this.clearEquipmentSlots = prev; // Paper
}
- // CraftBukkit start - Call death event
- org.bukkit.event.entity.EntityDeathEvent deathEvent = CraftEventFactory.callEntityDeathEvent(this, this.drops); // Paper
+ // CraftBukkit start - Call death event // Paper start - call advancement triggers with correct entity equipment
+ org.bukkit.event.entity.EntityDeathEvent deathEvent = CraftEventFactory.callEntityDeathEvent(this, this.drops, () -> {
+ final LivingEntity entityliving = this.getKillCredit();
+ if (this.deathScore >= 0 && entityliving != null) {
+ entityliving.awardKillScore(this, this.deathScore, source);
+ }
+ }); // Paper end
this.postDeathDropItems(deathEvent); // Paper
this.drops = new ArrayList<>();
// CraftBukkit end
diff --git a/src/main/java/net/minecraft/world/entity/decoration/ArmorStand.java b/src/main/java/net/minecraft/world/entity/decoration/ArmorStand.java
index a3a900d10440ed5ebe24370a77ccb6cad911cfc9..0d468631b9c260091e732925da43c177ebda892f 100644
--- a/src/main/java/net/minecraft/world/entity/decoration/ArmorStand.java
+++ b/src/main/java/net/minecraft/world/entity/decoration/ArmorStand.java
@@ -610,7 +610,7 @@ public class ArmorStand extends LivingEntity {
for (i = 0; i < this.handItems.size(); ++i) {
itemstack = (ItemStack) this.handItems.get(i);
if (!itemstack.isEmpty()) {
- drops.add(org.bukkit.craftbukkit.inventory.CraftItemStack.asBukkitCopy(itemstack)); // CraftBukkit - add to drops
+ drops.add(org.bukkit.craftbukkit.inventory.CraftItemStack.asCraftMirror(itemstack)); // CraftBukkit - add to drops // Paper - mirror so we can destroy it later - though this call site was safe
this.handItems.set(i, ItemStack.EMPTY);
}
}
@@ -618,7 +618,7 @@ public class ArmorStand extends LivingEntity {
for (i = 0; i < this.armorItems.size(); ++i) {
itemstack = (ItemStack) this.armorItems.get(i);
if (!itemstack.isEmpty()) {
- drops.add(org.bukkit.craftbukkit.inventory.CraftItemStack.asBukkitCopy(itemstack)); // CraftBukkit - add to drops
+ drops.add(org.bukkit.craftbukkit.inventory.CraftItemStack.asCraftMirror(itemstack)); // CraftBukkit - add to drops // Paper - mirror so we can destroy it later - though this call site was safe
this.armorItems.set(i, ItemStack.EMPTY);
}
}
diff --git a/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java b/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java
index 27733f7737945b400d31b432178d792d0b79977d..1e16264b533c2205098c0569fadb8e369a032764 100644
--- a/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java
+++ b/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java
@@ -818,6 +818,11 @@ public class CraftEventFactory {
}
public static EntityDeathEvent callEntityDeathEvent(net.minecraft.world.entity.LivingEntity victim, List<org.bukkit.inventory.ItemStack> drops) {
+ // Paper start
+ return CraftEventFactory.callEntityDeathEvent(victim, drops, com.google.common.util.concurrent.Runnables.doNothing());
+ }
+ public static EntityDeathEvent callEntityDeathEvent(net.minecraft.world.entity.LivingEntity victim, List<org.bukkit.inventory.ItemStack> drops, Runnable lootCheck) {
+ // Paper end
CraftLivingEntity entity = (CraftLivingEntity) victim.getBukkitEntity();
EntityDeathEvent event = new EntityDeathEvent(entity, drops, victim.getExpReward());
populateFields(victim, event); // Paper - make cancellable
@@ -831,11 +836,13 @@ public class CraftEventFactory {
playDeathSound(victim, event);
// Paper end
victim.expToDrop = event.getDroppedExp();
+ lootCheck.run(); // Paper - advancement triggers before destroying items
for (org.bukkit.inventory.ItemStack stack : event.getDrops()) {
if (stack == null || stack.getType() == Material.AIR || stack.getAmount() == 0) continue;
- world.dropItem(entity.getLocation(), stack);
+ world.dropItem(entity.getLocation(), stack); // Paper - note: dropItem already clones due to this being bukkit -> NMS
+ if (stack instanceof CraftItemStack) stack.setAmount(0); // Paper - destroy this item - if this ever leaks due to game bugs, ensure it doesn't dupe, but don't nuke bukkit stacks of manually added items
}
return event;

29
patches/unapplied/server/0406-Villager-Restocks-API.patch
View file

@ -1,29 +0,0 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: zbk <zbk@projectsolaris.net>
Date: Sun, 26 Apr 2020 23:49:01 -0400
Subject: [PATCH] Villager Restocks API
diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftVillager.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftVillager.java
index 1400f8c0cac3d653465b3750078de4d2691ac2a1..1a8a49bd269ed52879866ff3853e131d04aa8bba 100644
--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftVillager.java
+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftVillager.java
@@ -91,6 +91,18 @@ public class CraftVillager extends CraftAbstractVillager implements Villager {
this.getHandle().setVillagerXp(experience);
}
+ // Paper start
+ @Override
+ public int getRestocksToday() {
+ return getHandle().numberOfRestocksToday;
+ }
+
+ @Override
+ public void setRestocksToday(int restocksToday) {
+ getHandle().numberOfRestocksToday = restocksToday;
+ }
+ // Paper end
+
@Override
public boolean sleep(Location location) {
Preconditions.checkArgument(location != null, "Location cannot be null");

26
patches/unapplied/server/0407-Validate-PickItem-Packet-and-kick-for-invalid.patch
View file

@ -1,26 +0,0 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Sat, 2 May 2020 03:09:46 -0400
Subject: [PATCH] Validate PickItem Packet and kick for invalid
diff --git a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
index 31341e74ab18a8ea5110adff1e9d42b7473ca89f..47e841add3437c9ab271569e00b4b385ce2ced66 100644
--- a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
+++ b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
@@ -885,7 +885,14 @@ public class ServerGamePacketListenerImpl implements ServerPlayerConnection, Ser
@Override
public void handlePickItem(ServerboundPickItemPacket packet) {
PacketUtils.ensureRunningOnSameThread(packet, this, this.player.getLevel());
- this.player.getInventory().pickSlot(packet.getSlot());
+ // Paper start - validate pick item position
+ if (!(packet.getSlot() >= 0 && packet.getSlot() < this.player.getInventory().items.size())) {
+ ServerGamePacketListenerImpl.LOGGER.warn("{} tried to set an invalid carried item", this.player.getName().getString());
+ this.disconnect("Invalid hotbar selection (Hacking?)");
+ return;
+ }
+ this.player.getInventory().pickSlot(packet.getSlot()); // Paper - Diff above if changed
+ // Paper end
this.player.connection.send(new ClientboundContainerSetSlotPacket(-2, 0, this.player.getInventory().selected, this.player.getInventory().getItem(this.player.getInventory().selected)));
this.player.connection.send(new ClientboundContainerSetSlotPacket(-2, 0, packet.getSlot(), this.player.getInventory().getItem(packet.getSlot())));
this.player.connection.send(new ClientboundSetCarriedItemPacket(this.player.getInventory().selected));