Work

build.gradle.kts

@@ -1,7 +1,7 @@
 plugins {
     java
     id("com.github.johnrengelman.shadow") version "7.0.0" apply false
-    id("io.papermc.paperweight.core") version "1.0.0-SNAPSHOT"
+    id("io.papermc.paperweight.core") version "1.0.0-LOCAL-SNAPSHOT"
 }
 
 val mcVersion = providers.gradleProperty("mcVersion")

patches/api/0172-Entity-getEntitySpawnReason.patch

@@ -10,13 +10,13 @@ persistenting Living Entity, SPAWNER for spawners,
 or DEFAULT since data was not stored.
 
 diff --git a/src/main/java/org/bukkit/entity/Entity.java b/src/main/java/org/bukkit/entity/Entity.java
-index 4b1f9b0ad5dc9ad6f33fddafc376b6f983a556ef..5b382091b1466b25ad42325d5808785a8e948552 100644
+index 92927b9a90b2a4497dd572f6f752c40cf35dd8b8..4a6d58ef68b782291b4d26a8515be326481f5209 100644
 --- a/src/main/java/org/bukkit/entity/Entity.java
 +++ b/src/main/java/org/bukkit/entity/Entity.java
-@@ -708,5 +708,11 @@ public interface Entity extends Metadatable, CommandSender, Nameable, Persistent
-      */
-     @NotNull
-     Chunk getChunk();
+@@ -711,5 +711,11 @@ public interface Entity extends Metadatable, CommandSender, Nameable, Persistent
+         // TODO remove impl here
+         return getLocation().getChunk();
+     }
 +
 +    /**
 +     * @return The {@link org.bukkit.event.entity.CreatureSpawnEvent.SpawnReason} that spawned this entity.

patches/removed/1.17/0334-Allow-Saving-of-Oversized-Chunks.patch

@@ -3,6 +3,8 @@ From: Aikar <aikar@aikar.co>
 Date: Fri, 15 Feb 2019 01:08:19 -0500
 Subject: [PATCH] Allow Saving of Oversized Chunks
 
+Note 1.17 update: With 1.17, Entities are no longer stored in chunk slices, so this needs updating!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
 The Minecraft World Region File format has a hard cap of 1MB per chunk.
 This is due to the fact that the header of the file format only allocates
 a single byte for sector count, meaning a maximum of 256 sectors, at 4k per sector.

patches/server-remapped/0331-Handle-Oversized-Tile-Entities-in-chunks.patch

@@ -1,54 +0,0 @@
-From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
-From: Aikar <aikar@aikar.co>
-Date: Wed, 6 May 2020 05:00:57 -0400
-Subject: [PATCH] Handle Oversized Tile Entities in chunks
-
-Splits out Extra Packets if too many TE's are encountered to prevent
-creating too large of a packet to sed.
-
-Co authored by Spottedleaf
-
-diff --git a/src/main/java/net/minecraft/network/protocol/game/ClientboundLevelChunkPacket.java b/src/main/java/net/minecraft/network/protocol/game/ClientboundLevelChunkPacket.java
-index b7d303b5f51a35504888933efef74564fa01e59d..b587f774c8f88f2a1c3ea489f7e4fe0bbdeb5a41 100644
---- a/src/main/java/net/minecraft/network/protocol/game/ClientboundLevelChunkPacket.java
-+++ b/src/main/java/net/minecraft/network/protocol/game/ClientboundLevelChunkPacket.java
-@@ -34,7 +34,15 @@ public class ClientboundLevelChunkPacket implements Packet<ClientGamePacketListe
-     private boolean fullChunk;
- 
-     public ClientboundLevelChunkPacket() {}
-+    // Paper start
-+    private final java.util.List<Packet> extraPackets = new java.util.ArrayList<>();
-+    private static final int TE_LIMIT = Integer.getInteger("Paper.excessiveTELimit", 750);
- 
-+    @Override
-+    public java.util.List<Packet> getExtraPackets() {
-+        return extraPackets;
-+    }
-+    // Paper end
-     public ClientboundLevelChunkPacket(LevelChunk chunk, int includedSectionsMask) {
-         ChunkPos chunkcoordintpair = chunk.getPos();
- 
-@@ -61,6 +69,7 @@ public class ClientboundLevelChunkPacket implements Packet<ClientGamePacketListe
-         this.availableSections = this.extractChunkData(new FriendlyByteBuf(this.getWriteBuffer()), chunk, includedSectionsMask);
-         this.blockEntitiesTags = Lists.newArrayList();
-         iterator = chunk.getBlockEntities().entrySet().iterator();
-+        int totalTileEntities = 0; // Paper
- 
-         while (iterator.hasNext()) {
-             entry = (Entry) iterator.next();
-@@ -69,6 +78,15 @@ public class ClientboundLevelChunkPacket implements Packet<ClientGamePacketListe
-             int j = blockposition.getY() >> 4;
- 
-             if (this.isFullChunk() || (includedSectionsMask & 1 << j) != 0) {
-+                // Paper start - improve oversized chunk data packet handling
-+                if (++totalTileEntities > TE_LIMIT) {
-+                    ClientboundBlockEntityDataPacket updatePacket = tileentity.getUpdatePacket();
-+                    if (updatePacket != null) {
-+                        this.extraPackets.add(updatePacket);
-+                        continue;
-+                    }
-+                }
-+                // Paper end
-                 CompoundTag nbttagcompound = tileentity.getUpdateTag();
-                 if (tileentity instanceof SkullBlockEntity) { SkullBlockEntity.sanitizeTileEntityUUID(nbttagcompound); } // Paper
- 

patches/server-remapped/0339-Update-entity-Metadata-for-all-tracked-players.patch

@@ -1,43 +0,0 @@
-From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
-From: AgentTroll <woodyc40@gmail.com>
-Date: Fri, 22 Mar 2019 22:24:03 -0700
-Subject: [PATCH] Update entity Metadata for all tracked players
-
-
-diff --git a/src/main/java/net/minecraft/server/level/ServerEntity.java b/src/main/java/net/minecraft/server/level/ServerEntity.java
-index 49c71b21b6b88bc41ca6ddf4c76186ce522ee456..1609ab94c86e964421f996d4d46aef30f8b8e696 100644
---- a/src/main/java/net/minecraft/server/level/ServerEntity.java
-+++ b/src/main/java/net/minecraft/server/level/ServerEntity.java
-@@ -420,6 +420,12 @@ public class ServerEntity {
-         return ClientboundMoveEntityPacket.packetToEntity(this.xp, this.yp, this.zp);
-     }
- 
-+    // Paper start - Add broadcast method
-+    void broadcast(Packet<?> packet) {
-+        this.getPacketConsumer().accept(packet);
-+    }
-+    // Paper end
-+
-     private void broadcastAndSend(Packet<?> packet) {
-         this.broadcast.accept(packet);
-         if (this.entity instanceof ServerPlayer) {
-diff --git a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
-index d6d8d83bc16572474d56a278dd119eacc2c52476..ed4129a51351aff16455960d71a0add1b8209c02 100644
---- a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
-+++ b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
-@@ -2286,7 +2286,14 @@ public class ServerGamePacketListenerImpl implements ServerGamePacketListener {
- 
-                     if (event.isCancelled() || this.player.inventory.getSelected() == null || this.player.inventory.getSelected().getItem() != origItem) {
-                         // Refresh the current entity metadata
--                        this.send(new ClientboundSetEntityDataPacket(entity.getId(), entity.getEntityData(), true));
-+                        // Paper start - update entity for all players
-+                        ClientboundSetEntityDataPacket packet1 = new ClientboundSetEntityDataPacket(entity.getId(), entity.getEntityData(), true);
-+                        if (entity.tracker != null) {
-+                            entity.tracker.broadcast(packet1);
-+                        } else {
-+                            this.send(packet1);
-+                        }
-+                        // Paper end
-                     }
- 
-                     if (event.isCancelled()) {

patches/server-remapped/0640-Fire-event-on-GS4-query.patch

@@ -1,265 +0,0 @@
-From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
-From: Mark Vainomaa <mikroskeem@mikroskeem.eu>
-Date: Sun, 17 Mar 2019 21:46:56 +0200
-Subject: [PATCH] Fire event on GS4 query
-
-
-diff --git a/src/main/java/net/minecraft/server/rcon/NetworkDataOutputStream.java b/src/main/java/net/minecraft/server/rcon/NetworkDataOutputStream.java
-index d10de580430d754204b36de809376538a14591e6..f6f0539a8e6edbeb1c412cee753a282b24a38046 100644
---- a/src/main/java/net/minecraft/server/rcon/NetworkDataOutputStream.java
-+++ b/src/main/java/net/minecraft/server/rcon/NetworkDataOutputStream.java
-@@ -18,15 +18,27 @@ public class NetworkDataOutputStream {
-         this.dataOutputStream.write(abyte, 0, abyte.length);
-     }
- 
-+    public void writeString(String string) throws IOException { this.writeString(string); } // Paper - OBFHELPER
-     public void writeString(String s) throws IOException {
-         this.dataOutputStream.writeBytes(s);
-         this.dataOutputStream.write(0);
-     }
-+    // Paper start - unchecked exception variant to use in Stream API
-+    public void writeStringUnchecked(String string) {
-+        try {
-+            writeString(string);
-+        } catch (IOException e) {
-+            com.destroystokyo.paper.util.SneakyThrow.sneaky(e);
-+        }
-+    }
-+    // Paper end
- 
-+    public void writeInt(int i) throws IOException { this.write(i); } // Paper - OBFHELPER
-     public void write(int i) throws IOException {
-         this.dataOutputStream.write(i);
-     }
- 
-+    public void writeShort(short i) throws IOException { this.writeShort(i); } // Paper - OBFHELPER
-     public void writeShort(short short0) throws IOException {
-         this.dataOutputStream.writeShort(Short.reverseBytes(short0));
-     }
-diff --git a/src/main/java/net/minecraft/server/rcon/thread/QueryThreadGs4.java b/src/main/java/net/minecraft/server/rcon/thread/QueryThreadGs4.java
-index 170d047463154bd6851199f06fe343ccb1896213..5562a3caff328bb08857b4f06a79b1e52f390fdd 100644
---- a/src/main/java/net/minecraft/server/rcon/thread/QueryThreadGs4.java
-+++ b/src/main/java/net/minecraft/server/rcon/thread/QueryThreadGs4.java
-@@ -16,6 +16,7 @@ import java.util.Random;
- import javax.annotation.Nullable;
- import net.minecraft.Util;
- import net.minecraft.server.ServerInterface;
-+import net.minecraft.server.dedicated.DedicatedServer;
- import net.minecraft.server.rcon.NetworkDataOutputStream;
- import net.minecraft.server.rcon.PktUtils;
- import org.apache.logging.log4j.LogManager;
-@@ -26,18 +27,18 @@ public class QueryThreadGs4 extends GenericThread {
-     private static final Logger LOGGER = LogManager.getLogger();
-     private long lastChallengeCheck;
-     private final int port;
--    private final int serverPort;
--    private final int maxPlayers;
--    private final String serverName;
--    private final String worldName;
-+    private final int serverPort; private final int getServerPort() { return this.serverPort; } // Paper - OBFHELPER
-+    private final int maxPlayers; private final int getMaxPlayers() { return this.maxPlayers; } // Paper - OBFHELPER
-+    private final String serverName; private final String getMotd() { return this.serverName; } // Paper - OBFHELPER
-+    private final String worldName; private final String getWorldName() { return this.worldName; } // Paper - OBFHELPER
-     private DatagramSocket socket;
-     private final byte[] buffer = new byte[1460];
--    private String hostIp;
-+    private String hostIp; public final String getServerHost() { return this.hostIp; } // Paper - OBFHELPER
-     private String serverIp;
-     private final Map<SocketAddress, QueryThreadGs4.RequestChallenge> validChallenges;
--    private final NetworkDataOutputStream rulesResponse;
-+    private final NetworkDataOutputStream rulesResponse; private final NetworkDataOutputStream getCachedFullResponse() { return this.rulesResponse; } // Paper - OBFHELPER
-     private long lastRulesResponse;
--    private final ServerInterface serverInterface;
-+    private final ServerInterface serverInterface; private final ServerInterface getServer() { return this.serverInterface; } // Paper - OBFHELPER
- 
-     private QueryThreadGs4(ServerInterface server, int queryPort) {
-         super("Query Listener");
-@@ -107,13 +108,39 @@ public class QueryThreadGs4 extends GenericThread {
- 
-                         remotestatusreply.write((int) 0);
-                         remotestatusreply.writeBytes(this.getIdentBytes(packet.getSocketAddress()));
--                        remotestatusreply.writeString(this.serverName);
-+                        /* Paper start - GS4 Query event
-+                        remotestatusreply.a(this.i);
-+                        remotestatusreply.a("SMP");
-+                        remotestatusreply.a(this.j);
-+                        remotestatusreply.a(Integer.toString(this.r.getPlayerCount()));
-+                        remotestatusreply.a(Integer.toString(this.h));
-+                        remotestatusreply.a((short) this.g);
-+                        remotestatusreply.a(this.m);
-+                        */
-+                        com.destroystokyo.paper.event.server.GS4QueryEvent.QueryType queryType =
-+                            com.destroystokyo.paper.event.server.GS4QueryEvent.QueryType.BASIC;
-+                        com.destroystokyo.paper.event.server.GS4QueryEvent.QueryResponse queryResponse = com.destroystokyo.paper.event.server.GS4QueryEvent.QueryResponse.builder()
-+                            .motd(this.getMotd())
-+                            .map(this.getWorldName())
-+                            .currentPlayers(this.getServer().getPlayerCount())
-+                            .maxPlayers(this.getMaxPlayers())
-+                            .port(this.getServerPort())
-+                            .hostname(this.getServerHost())
-+                            .gameVersion(this.getServer().getServerVersion())
-+                            .serverVersion(org.bukkit.Bukkit.getServer().getName() + " on " + org.bukkit.Bukkit.getServer().getBukkitVersion())
-+                            .build();
-+                        com.destroystokyo.paper.event.server.GS4QueryEvent queryEvent =
-+                            new com.destroystokyo.paper.event.server.GS4QueryEvent(queryType, packet.getAddress(), queryResponse);
-+                        queryEvent.callEvent();
-+                        queryResponse = queryEvent.getResponse();
-+                        remotestatusreply.writeString(queryResponse.getMotd());
-                         remotestatusreply.writeString("SMP");
--                        remotestatusreply.writeString(this.worldName);
--                        remotestatusreply.writeString(Integer.toString(this.serverInterface.getPlayerCount()));
--                        remotestatusreply.writeString(Integer.toString(this.maxPlayers));
--                        remotestatusreply.writeShort((short) this.serverPort);
--                        remotestatusreply.writeString(this.hostIp);
-+                        remotestatusreply.writeString(queryResponse.getMap());
-+                        remotestatusreply.writeString(Integer.toString(queryResponse.getCurrentPlayers()));
-+                        remotestatusreply.writeString(Integer.toString(queryResponse.getMaxPlayers()));
-+                        remotestatusreply.writeShort((short) queryResponse.getPort());
-+                        remotestatusreply.writeString(queryResponse.getHostname());
-+                        // Paper end
-                         this.sendTo(remotestatusreply.toByteArray(), packet);
-                         QueryThreadGs4.LOGGER.debug("Status [{}]", socketaddress);
-                     }
-@@ -150,41 +177,115 @@ public class QueryThreadGs4 extends GenericThread {
-             this.rulesResponse.writeString("splitnum");
-             this.rulesResponse.write((int) 128);
-             this.rulesResponse.write((int) 0);
--            this.rulesResponse.writeString("hostname");
--            this.rulesResponse.writeString(this.serverName);
--            this.rulesResponse.writeString("gametype");
--            this.rulesResponse.writeString("SMP");
--            this.rulesResponse.writeString("game_id");
--            this.rulesResponse.writeString("MINECRAFT");
--            this.rulesResponse.writeString("version");
--            this.rulesResponse.writeString(this.serverInterface.getServerVersion());
--            this.rulesResponse.writeString("plugins");
--            this.rulesResponse.writeString(this.serverInterface.getPluginNames());
--            this.rulesResponse.writeString("map");
--            this.rulesResponse.writeString(this.worldName);
--            this.rulesResponse.writeString("numplayers");
--            this.rulesResponse.writeString("" + this.serverInterface.getPlayerCount());
--            this.rulesResponse.writeString("maxplayers");
--            this.rulesResponse.writeString("" + this.maxPlayers);
--            this.rulesResponse.writeString("hostport");
--            this.rulesResponse.writeString("" + this.serverPort);
--            this.rulesResponse.writeString("hostip");
--            this.rulesResponse.writeString(this.hostIp);
--            this.rulesResponse.write((int) 0);
--            this.rulesResponse.write((int) 1);
--            this.rulesResponse.writeString("player_");
--            this.rulesResponse.write((int) 0);
--            String[] astring = this.serverInterface.getPlayerNames();
-+            /* Paper start - GS4 Query event
-+            this.p.a("hostname");
-+            this.p.a(this.i);
-+            this.p.a("gametype");
-+            this.p.a("SMP");
-+            this.p.a("game_id");
-+            this.p.a("MINECRAFT");
-+            this.p.a("version");
-+            this.p.a(this.r.getVersion());
-+            this.p.a("plugins");
-+            this.p.a(this.r.getPlugins());
-+            this.p.a("map");
-+            this.p.a(this.j);
-+            this.p.a("numplayers");
-+            this.p.a("" + this.r.getPlayerCount());
-+            this.p.a("maxplayers");
-+            this.p.a("" + this.h);
-+            this.p.a("hostport");
-+            this.p.a("" + this.g);
-+            this.p.a("hostip");
-+            this.p.a(this.m);
-+            this.p.a((int) 0);
-+            this.p.a((int) 1);
-+            this.p.a("player_");
-+            this.p.a((int) 0);
-+            String[] astring = this.r.getPlayers();
-             String[] astring1 = astring;
-             int j = astring.length;
- 
-             for (int k = 0; k < j; ++k) {
-                 String s = astring1[k];
- 
--                this.rulesResponse.writeString(s);
-+                this.p.a(s);
-             }
- 
--            this.rulesResponse.write((int) 0);
-+            this.p.a((int) 0);
-+            */
-+            // Pack plugins
-+            java.util.List<com.destroystokyo.paper.event.server.GS4QueryEvent.QueryResponse.PluginInformation> plugins = java.util.Collections.emptyList();
-+            org.bukkit.plugin.Plugin[] bukkitPlugins;
-+            if (((DedicatedServer) this.getServer()).server.getQueryPlugins() && (bukkitPlugins = org.bukkit.Bukkit.getPluginManager().getPlugins()).length > 0) {
-+                plugins = java.util.stream.Stream.of(bukkitPlugins)
-+                    .map(plugin -> com.destroystokyo.paper.event.server.GS4QueryEvent.QueryResponse.PluginInformation.of(plugin.getName(), plugin.getDescription().getVersion()))
-+                    .collect(java.util.stream.Collectors.toList());
-+            }
-+
-+            com.destroystokyo.paper.event.server.GS4QueryEvent.QueryResponse queryResponse = com.destroystokyo.paper.event.server.GS4QueryEvent.QueryResponse.builder()
-+                .motd(this.getMotd())
-+                .map(this.getWorldName())
-+                .currentPlayers(this.getServer().getPlayerCount())
-+                .maxPlayers(this.getMaxPlayers())
-+                .port(this.getServerPort())
-+                .hostname(this.getServerHost())
-+                .plugins(plugins)
-+                .players(this.getServer().getPlayerNames())
-+                .gameVersion(this.getServer().getServerVersion())
-+                .serverVersion(org.bukkit.Bukkit.getServer().getName() + " on " + org.bukkit.Bukkit.getServer().getBukkitVersion())
-+                .build();
-+            com.destroystokyo.paper.event.server.GS4QueryEvent.QueryType queryType =
-+                com.destroystokyo.paper.event.server.GS4QueryEvent.QueryType.FULL;
-+            com.destroystokyo.paper.event.server.GS4QueryEvent queryEvent =
-+                new com.destroystokyo.paper.event.server.GS4QueryEvent(queryType, packet.getAddress(), queryResponse);
-+            queryEvent.callEvent();
-+            queryResponse = queryEvent.getResponse();
-+            this.getCachedFullResponse().writeString("hostname");
-+            this.getCachedFullResponse().writeString(queryResponse.getMotd());
-+            this.getCachedFullResponse().writeString("gametype");
-+            this.getCachedFullResponse().writeString("SMP");
-+            this.getCachedFullResponse().writeString("game_id");
-+            this.getCachedFullResponse().writeString("MINECRAFT");
-+            this.getCachedFullResponse().writeString("version");
-+            this.getCachedFullResponse().writeString(queryResponse.getGameVersion());
-+            this.getCachedFullResponse().writeString("plugins");
-+            java.lang.StringBuilder pluginsString = new java.lang.StringBuilder();
-+            pluginsString.append(queryResponse.getServerVersion());
-+            if (!queryResponse.getPlugins().isEmpty()) {
-+                pluginsString.append(": ");
-+                java.util.Iterator<com.destroystokyo.paper.event.server.GS4QueryEvent.QueryResponse.PluginInformation> iter = queryResponse.getPlugins().iterator();
-+                while (iter.hasNext()) {
-+                    com.destroystokyo.paper.event.server.GS4QueryEvent.QueryResponse.PluginInformation info = iter.next();
-+                    pluginsString.append(info.getName());
-+                    if (info.getVersion() != null) {
-+                        pluginsString.append(' ').append(info.getVersion().replace(";", ","));
-+                    }
-+                    if (iter.hasNext()) {
-+                        pluginsString.append(';').append(' ');
-+                    }
-+                }
-+            }
-+            this.getCachedFullResponse().writeString(pluginsString.toString());
-+            this.getCachedFullResponse().writeString("map");
-+            this.getCachedFullResponse().writeString(queryResponse.getMap());
-+            this.getCachedFullResponse().writeString("numplayers");
-+            this.getCachedFullResponse().writeString(Integer.toString(queryResponse.getCurrentPlayers()));
-+            this.getCachedFullResponse().writeString("maxplayers");
-+            this.getCachedFullResponse().writeString(Integer.toString(queryResponse.getMaxPlayers()));
-+            this.getCachedFullResponse().writeString("hostport");
-+            this.getCachedFullResponse().writeString(Integer.toString(queryResponse.getPort()));
-+            this.getCachedFullResponse().writeString("hostip");
-+            this.getCachedFullResponse().writeString(queryResponse.getHostname());
-+            // The "meaningless data" start, copied from above
-+            this.getCachedFullResponse().writeInt(0);
-+            this.getCachedFullResponse().writeInt(1);
-+            this.getCachedFullResponse().writeString("player_");
-+            this.getCachedFullResponse().writeInt(0);
-+            // "Meaningless data" end
-+            queryResponse.getPlayers().forEach(this.getCachedFullResponse()::writeStringUnchecked);
-+            this.getCachedFullResponse().writeInt(0);
-+            // Paper end
-             return this.rulesResponse.toByteArray();
-         }
-     }

patches/server/0306-Optimize-Network-Manager-and-add-advanced-packet-sup.patch

@@ -28,26 +28,10 @@ and then catch exceptions and close if they fire.
 Part of this commit was authored by: Spottedleaf
 
 diff --git a/src/main/java/net/minecraft/network/Connection.java b/src/main/java/net/minecraft/network/Connection.java
-index 3247ec5d6cf329ba0b7e6d5a6c3294dec2e34db4..fc63df21aecd4721efdb45d4744666ed0b562c1b 100644
+index 9f0537799a3cae43fb120056b8fe805a4883cc4d..5897bdb4d1372fa3d7bdc482d02f0a54d8767bda 100644
 --- a/src/main/java/net/minecraft/network/Connection.java
 +++ b/src/main/java/net/minecraft/network/Connection.java
-@@ -25,8 +25,15 @@ import net.minecraft.network.chat.Component;
- import net.minecraft.network.chat.TranslatableComponent;
- import net.minecraft.network.protocol.Packet;
- import net.minecraft.network.protocol.PacketFlow;
-+import net.minecraft.network.protocol.game.ClientboundBossEventPacket;
-+import net.minecraft.network.protocol.game.ClientboundChatPacket;
-+import net.minecraft.network.protocol.game.ClientboundCommandSuggestionsPacket;
- import net.minecraft.network.protocol.game.ClientboundDisconnectPacket;
-+import net.minecraft.network.protocol.game.ClientboundKeepAlivePacket;
-+import net.minecraft.network.protocol.game.ClientboundSetTitlesPacket;
-+import net.minecraft.server.MCUtil;
- import net.minecraft.server.RunningOnDifferentThreadException;
-+import net.minecraft.server.level.ServerPlayer;
- import net.minecraft.server.network.ServerGamePacketListenerImpl;
- import net.minecraft.server.network.ServerLoginPacketListenerImpl;
- import net.minecraft.util.LazyLoadedValue;
-@@ -75,6 +82,10 @@ public class Connection extends SimpleChannelInboundHandler<Packet<?>> {
+@@ -87,6 +87,10 @@ public class Connection extends SimpleChannelInboundHandler<Packet<?>> {
      public int protocolVersion;
      public java.net.InetSocketAddress virtualHost;
      private static boolean enableExplicitFlush = Boolean.getBoolean("paper.explicit-flush");
@@ -58,7 +42,7 @@ index 3247ec5d6cf329ba0b7e6d5a6c3294dec2e34db4..fc63df21aecd4721efdb45d4744666ed
      // Paper end
  
      public Connection(PacketFlow side) {
-@@ -98,6 +109,7 @@ public class Connection extends SimpleChannelInboundHandler<Packet<?>> {
+@@ -110,6 +114,7 @@ public class Connection extends SimpleChannelInboundHandler<Packet<?>> {
      }
  
      public void setProtocol(ConnectionProtocol state) {
@@ -66,12 +50,12 @@ index 3247ec5d6cf329ba0b7e6d5a6c3294dec2e34db4..fc63df21aecd4721efdb45d4744666ed
          this.channel.attr(Connection.ATTRIBUTE_PROTOCOL).set(state);
          this.channel.config().setAutoRead(true);
          Connection.LOGGER.debug("Enabled auto read");
-@@ -168,19 +180,84 @@ public class Connection extends SimpleChannelInboundHandler<Packet<?>> {
+@@ -186,19 +191,87 @@ public class Connection extends SimpleChannelInboundHandler<Packet<?>> {
          Validate.notNull(listener, "packetListener", new Object[0]);
          this.packetListener = listener;
      }
 +    // Paper start
-+    public ServerPlayer getPlayer() {
++    public net.minecraft.server.level.ServerPlayer getPlayer() {
 +        if (packetListener instanceof ServerGamePacketListenerImpl) {
 +            return ((ServerGamePacketListenerImpl) packetListener).player;
 +        } else {
@@ -101,11 +85,15 @@ index 3247ec5d6cf329ba0b7e6d5a6c3294dec2e34db4..fc63df21aecd4721efdb45d4744666ed
 +        // Paper start
 +        private static boolean canSendImmediate(Connection networkManager, Packet<?> packet) {
 +            return networkManager.isPending || networkManager.protocol != ConnectionProtocol.PLAY ||
-+                packet instanceof ClientboundKeepAlivePacket ||
-+                packet instanceof ClientboundChatPacket ||
-+                packet instanceof ClientboundCommandSuggestionsPacket ||
-+                packet instanceof ClientboundSetTitlesPacket ||
-+                packet instanceof ClientboundBossEventPacket;
++                packet instanceof net.minecraft.network.protocol.game.ClientboundKeepAlivePacket ||
++                packet instanceof net.minecraft.network.protocol.game.ClientboundChatPacket ||
++                packet instanceof net.minecraft.network.protocol.game.ClientboundCommandSuggestionsPacket ||
++                packet instanceof net.minecraft.network.protocol.game.ClientboundSetTitleTextPacket ||
++                packet instanceof net.minecraft.network.protocol.game.ClientboundSetSubtitleTextPacket ||
++                packet instanceof net.minecraft.network.protocol.game.ClientboundSetActionBarTextPacket ||
++                packet instanceof net.minecraft.network.protocol.game.ClientboundSetTitlesAnimationPacket ||
++                packet instanceof net.minecraft.network.protocol.game.ClientboundClearTitlesPacket ||
++                packet instanceof net.minecraft.network.protocol.game.ClientboundBossEventPacket;
 +        }
 +        // Paper end
 +    }
@@ -128,10 +116,10 @@ index 3247ec5d6cf329ba0b7e6d5a6c3294dec2e34db4..fc63df21aecd4721efdb45d4744666ed
 +        }
 +        packet.onPacketDispatch(getPlayer());
 +        if (connected && (InnerUtil.canSendImmediate(this, packet) || (
-+            MCUtil.isMainThread() && packet.isReady() && this.queue.isEmpty() &&
++            net.minecraft.server.MCUtil.isMainThread() && packet.isReady() && this.queue.isEmpty() &&
 +            (packet.getExtraPackets() == null || packet.getExtraPackets().isEmpty())
 +        ))) {
-+            this.dispatchPacket(packet, callback);
++            this.send(packet, callback);
 +            return;
          }
 +        // write the packets to the queue, then flush - antixray hooks there already
@@ -142,106 +130,67 @@ index 3247ec5d6cf329ba0b7e6d5a6c3294dec2e34db4..fc63df21aecd4721efdb45d4744666ed
 +        } else {
 +            java.util.List<Connection.PacketHolder> packets = new java.util.ArrayList<>(1 + extraPackets.size());
 +            packets.add(new Connection.PacketHolder(packet, null)); // delay the future listener until the end of the extra packets
-+
+ 
 +            for (int i = 0, len = extraPackets.size(); i < len;) {
 +                Packet extra = extraPackets.get(i);
 +                boolean end = ++i == len;
 +                packets.add(new Connection.PacketHolder(extra, end ? callback : null)); // append listener to the end
 +            }
- 
 +            this.queue.addAll(packets); // atomic
 +        }
-+        this.sendPacketQueue();
++        this.flushQueue();
 +        // Paper end
      }
  
-     private void dispatchPacket(Packet<?> packet, @Nullable GenericFutureListener<? extends Future<? super Void>> genericFutureListener) { this.sendPacket(packet, genericFutureListener); } // Paper - OBFHELPER
-@@ -194,54 +271,119 @@ public class Connection extends SimpleChannelInboundHandler<Packet<?>> {
-             this.channel.config().setAutoRead(false);
+     private void sendPacket(Packet<?> packet, @Nullable GenericFutureListener<? extends Future<? super Void>> callback) {
+@@ -226,33 +299,79 @@ public class Connection extends SimpleChannelInboundHandler<Packet<?>> {
+             this.setProtocol(enumprotocol);
          }
  
-+        ServerPlayer player = getPlayer(); // Paper
-         if (this.channel.eventLoop().inEventLoop()) {
-             if (enumprotocol != enumprotocol1) {
-                 this.setProtocol(enumprotocol);
-             }
-+            // Paper start
-+            if (!isConnected()) {
-+                packet.onPacketDispatchFinish(player, null);
-+                return;
-+            }
-+            try {
-+                // Paper end
- 
-             ChannelFuture channelfuture = this.channel.writeAndFlush(packet);
- 
-             if (callback != null) {
-                 channelfuture.addListener(callback);
-             }
-+            // Paper start
-+            if (packet.hasFinishListener()) {
-+                channelfuture.addListener((ChannelFutureListener) channelFuture -> packet.onPacketDispatchFinish(player, channelFuture));
-+            }
-+            // Paper end
- 
-             channelfuture.addListener(ChannelFutureListener.FIRE_EXCEPTION_ON_FAILURE);
-+            // Paper start
-+            } catch (Exception e) {
-+                LOGGER.error("NetworkException: " + player, e);
-+                disconnect(new TranslatableComponent("disconnect.genericReason", "Internal Exception: " + e.getMessage()));;
-+                packet.onPacketDispatchFinish(player, null);
-+            }
-+            // Paper end
-         } else {
-             this.channel.eventLoop().execute(() -> {
-                 if (enumprotocol != enumprotocol1) {
-                     this.setProtocol(enumprotocol);
-                 }
- 
-+                // Paper start
-+                if (!isConnected()) {
-+                    packet.onPacketDispatchFinish(player, null);
-+                    return;
-+                }
-+                try {
-+                    // Paper end
-                 ChannelFuture channelfuture1 = this.channel.writeAndFlush(packet);
- 
++        // Paper start
++        net.minecraft.server.level.ServerPlayer player = getPlayer();
++        if (!isConnected()) {
++            packet.onPacketDispatchFinish(player, null);
++            return;
++        }
 +
-                 if (callback != null) {
-                     channelfuture1.addListener(callback);
-                 }
-+                // Paper start
-+                if (packet.hasFinishListener()) {
-+                    channelfuture1.addListener((ChannelFutureListener) channelFuture -> packet.onPacketDispatchFinish(player, channelFuture));
-+                }
-+                // Paper end
++        try {
++            // Paper end
+         ChannelFuture channelfuture = this.channel.writeAndFlush(packet);
  
-                 channelfuture1.addListener(ChannelFutureListener.FIRE_EXCEPTION_ON_FAILURE);
-+                // Paper start
-+                } catch (Exception e) {
-+                    LOGGER.error("NetworkException: " + player, e);
-+                    disconnect(new TranslatableComponent("disconnect.genericReason", "Internal Exception: " + e.getMessage()));;
-+                    packet.onPacketDispatchFinish(player, null);
-+                }
-+                // Paper end
-             });
+         if (genericfuturelistener != null) {
+             channelfuture.addListener(genericfuturelistener);
          }
++        // Paper start
++        if (packet.hasFinishListener()) {
++            channelfuture.addListener((ChannelFutureListener) channelFuture -> packet.onPacketDispatchFinish(player, channelFuture));
++        }
++        // Paper end
  
+         channelfuture.addListener(ChannelFutureListener.FIRE_EXCEPTION_ON_FAILURE);
++        // Paper start
++        } catch (Exception e) {
++            LOGGER.error("NetworkException: " + player, e);
++            disconnect(new net.minecraft.network.chat.TranslatableComponent("disconnect.genericReason", "Internal Exception: " + e.getMessage()));
++            packet.onPacketDispatchFinish(player, null);
++        }
++        // Paper end
+     }
+ 
+     private ConnectionProtocol getCurrentProtocol() {
+         return (ConnectionProtocol) this.channel.attr(Connection.ATTRIBUTE_PROTOCOL).get();
      }
  
--    private void sendPacketQueue() { this.flushQueue(); } // Paper - OBFHELPER
 -    private void flushQueue() {
 -        if (this.channel != null && this.channel.isOpen()) {
 -            Queue queue = this.queue;
 -
 +    // Paper start - rewrite this to be safer if ran off main thread
-+    private boolean sendPacketQueue() { return this.p(); } // OBFHELPER // void -> boolean
-+    private boolean p() { // void -> boolean
++    private boolean flushQueue() { // void -> boolean
 +        if (!isConnected()) {
 +            return true;
 +        }
-+        if (MCUtil.isMainThread()) {
++        if (net.minecraft.server.MCUtil.isMainThread()) {
 +            return processQueue();
 +        } else if (isPending) {
 +            // Should only happen during login/status stages
@@ -262,19 +211,19 @@ index 3247ec5d6cf329ba0b7e6d5a6c3294dec2e34db4..fc63df21aecd4721efdb45d4744666ed
 +        // But if we are not on main due to login/status, the parent is synchronized on packetQueue
 +        java.util.Iterator<PacketHolder> iterator = this.queue.iterator();
 +        while (iterator.hasNext()) {
-+            Connection.PacketHolder queued = iterator.next(); // poll -> peek
++            PacketHolder queued = iterator.next(); // poll -> peek
 +
 +            // Fix NPE (Spigot bug caused by handleDisconnection())
 +            if (queued == null) {
 +                return true;
 +            }
  
-+            Packet<?> packet = queued.getPacket();
++            Packet<?> packet = queued.packet;
 +            if (!packet.isReady()) {
 +                return false;
 +            } else {
 +                iterator.remove();
-+                this.dispatchPacket(packet, queued.getGenericFutureListener());
++                this.sendPacket(packet, queued.listener);
              }
          }
 +        return true;
@@ -282,26 +231,23 @@ index 3247ec5d6cf329ba0b7e6d5a6c3294dec2e34db4..fc63df21aecd4721efdb45d4744666ed
 +    // Paper end
  
      public void tick() {
--        this.flushQueue();
-+        this.p();
-         if (this.packetListener instanceof ServerLoginPacketListenerImpl) {
-             ((ServerLoginPacketListenerImpl) this.packetListener).tick();
-         }
-@@ -271,9 +413,21 @@ public class Connection extends SimpleChannelInboundHandler<Packet<?>> {
+         this.flushQueue();
+@@ -289,9 +408,22 @@ public class Connection extends SimpleChannelInboundHandler<Packet<?>> {
          return this.address;
      }
  
 +    // Paper start
 +    public void clearPacketQueue() {
-+        ServerPlayer player = getPlayer();
++        net.minecraft.server.level.ServerPlayer player = getPlayer();
 +        queue.forEach(queuedPacket -> {
-+            Packet<?> packet = queuedPacket.getPacket();
++            Packet<?> packet = queuedPacket.packet;
 +            if (packet.hasFinishListener()) {
 +                packet.onPacketDispatchFinish(player, null);
 +            }
 +        });
 +        queue.clear();
-+    } // Paper end
++    }
++    // Paper end
      public void disconnect(Component disconnectReason) {
          // Spigot Start
          this.preparing = false;
@@ -309,18 +255,18 @@ index 3247ec5d6cf329ba0b7e6d5a6c3294dec2e34db4..fc63df21aecd4721efdb45d4744666ed
          // Spigot End
          if (this.channel.isOpen()) {
              this.channel.close(); // We can't wait as this may be called from an event loop.
-@@ -341,7 +495,7 @@ public class Connection extends SimpleChannelInboundHandler<Packet<?>> {
+@@ -409,7 +541,7 @@ public class Connection extends SimpleChannelInboundHandler<Packet<?>> {
      public void handleDisconnection() {
          if (this.channel != null && !this.channel.isOpen()) {
              if (this.disconnectionHandled) {
 -                Connection.LOGGER.warn("handleDisconnection() called twice");
-+                //NetworkManager.LOGGER.warn("handleDisconnection() called twice"); // Paper - Do not log useless message
++                //Connection.LOGGER.warn("handleDisconnection() called twice"); // Paper - Do not log useless message
              } else {
                  this.disconnectionHandled = true;
                  if (this.getDisconnectedReason() != null) {
-@@ -349,7 +503,7 @@ public class Connection extends SimpleChannelInboundHandler<Packet<?>> {
+@@ -417,7 +549,7 @@ public class Connection extends SimpleChannelInboundHandler<Packet<?>> {
                  } else if (this.getPacketListener() != null) {
-                     this.getPacketListener().a(new TranslatableComponent("multiplayer.disconnect.generic"));
+                     this.getPacketListener().onDisconnect(new TranslatableComponent("multiplayer.disconnect.generic"));
                  }
 -                this.queue.clear(); // Free up packet queue.
 +                clearPacketQueue(); // Paper
@@ -328,67 +274,26 @@ index 3247ec5d6cf329ba0b7e6d5a6c3294dec2e34db4..fc63df21aecd4721efdb45d4744666ed
                  final PacketListener packetListener = this.getPacketListener();
                  if (packetListener instanceof ServerGamePacketListenerImpl) {
 diff --git a/src/main/java/net/minecraft/network/protocol/Packet.java b/src/main/java/net/minecraft/network/protocol/Packet.java
-index 9914a82ba0ec146ab13fe94c4dbf0ebf64926536..22db5d0d2cc33498ca40162c66aa3b5fbf2f569f 100644
+index 74bfe0d3942259c45702b099efdc4e101a4e3022..e8fcd56906d26f6dc87959e32c4c7c78cfea9658 100644
 --- a/src/main/java/net/minecraft/network/protocol/Packet.java
 +++ b/src/main/java/net/minecraft/network/protocol/Packet.java
-@@ -1,5 +1,6 @@
- package net.minecraft.network.protocol;
- 
-+import io.netty.channel.ChannelFuture; // Paper
- import java.io.IOException;
- import net.minecraft.network.FriendlyByteBuf;
- import net.minecraft.network.PacketListener;
-@@ -13,6 +14,20 @@ public interface Packet<T extends PacketListener> {
+@@ -9,6 +9,19 @@ public interface Packet<T extends PacketListener> {
      void handle(T listener);
  
      // Paper start
-+
 +    /**
 +     * @param player Null if not at PLAY stage yet
 +     */
-+    default void onPacketDispatch(@javax.annotation.Nullable EntityPlayer player) {}
++    default void onPacketDispatch(@javax.annotation.Nullable net.minecraft.server.level.ServerPlayer player) {}
 +
 +    /**
 +     * @param player Null if not at PLAY stage yet
 +     * @param future Can be null if packet was cancelled
 +     */
-+    default void onPacketDispatchFinish(@javax.annotation.Nullable EntityPlayer player, @javax.annotation.Nullable ChannelFuture future) {}
++    default void onPacketDispatchFinish(@javax.annotation.Nullable net.minecraft.server.level.ServerPlayer player, @javax.annotation.Nullable io.netty.channel.ChannelFuture future) {}
 +    default boolean hasFinishListener() { return false; }
 +    default boolean isReady() { return true; }
 +    default java.util.List<Packet> getExtraPackets() { return null; }
-     default boolean packetTooLarge(NetworkManager manager) {
+     default boolean packetTooLarge(net.minecraft.network.Connection manager) {
          return false;
      }
-diff --git a/src/main/java/net/minecraft/server/network/ServerConnectionListener.java b/src/main/java/net/minecraft/server/network/ServerConnectionListener.java
-index 6cb51a4fe3c11f53fbb556ce6b0d64b735254d51..d46910cfdc0aef046a0c79731a85d381953c328a 100644
---- a/src/main/java/net/minecraft/server/network/ServerConnectionListener.java
-+++ b/src/main/java/net/minecraft/server/network/ServerConnectionListener.java
-@@ -16,6 +16,7 @@ import io.netty.channel.epoll.EpollServerSocketChannel;
- import io.netty.channel.nio.NioEventLoopGroup;
- import io.netty.channel.socket.ServerSocketChannel;
- import io.netty.channel.socket.nio.NioServerSocketChannel;
-+import io.netty.handler.flush.FlushConsolidationHandler; // Paper
- import io.netty.handler.timeout.ReadTimeoutHandler;
- import java.io.IOException;
- import java.net.InetAddress;
-@@ -54,10 +55,12 @@ public class ServerConnectionListener {
-     private final List<Connection> connections = Collections.synchronizedList(Lists.newArrayList());
-     // Paper start - prevent blocking on adding a new network manager while the server is ticking
-     private final java.util.Queue<Connection> pending = new java.util.concurrent.ConcurrentLinkedQueue<>();
-+    private static final boolean disableFlushConsolidation = Boolean.getBoolean("Paper.disableFlushConsolidate"); // Paper
-     private void addPending() {
-         Connection manager = null;
-         while ((manager = pending.poll()) != null) {
-             connections.add(manager);
-+            manager.isPending = false;
-         }
-     }
-     // Paper end
-@@ -92,6 +95,7 @@ public class ServerConnectionListener {
-                         ;
-                     }
- 
-+                    if (!disableFlushConsolidation) channel.pipeline().addFirst(new FlushConsolidationHandler()); // Paper
-                     channel.pipeline().addLast("timeout", new ReadTimeoutHandler(30)).addLast("legacy_query", new LegacyQueryHandler(ServerConnectionListener.this)).addLast("splitter", new Varint21FrameDecoder()).addLast("decoder", new PacketDecoder(PacketFlow.SERVERBOUND)).addLast("prepender", new Varint21LengthFieldPrepender()).addLast("encoder", new PacketEncoder(PacketFlow.CLIENTBOUND));
-                     int j = ServerConnectionListener.this.server.getRateLimitPacketsPerSecond();
-                     Object object = j > 0 ? new RateKickingConnection(j) : new Connection(PacketFlow.SERVERBOUND);

patches/server/0307-Handle-Oversized-Tile-Entities-in-chunks.patch

@@ -0,0 +1,50 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Aikar <aikar@aikar.co>
+Date: Wed, 6 May 2020 05:00:57 -0400
+Subject: [PATCH] Handle Oversized Tile Entities in chunks
+
+Splits out Extra Packets if too many TE's are encountered to prevent
+creating too large of a packet to sed.
+
+Co authored by Spottedleaf
+
+diff --git a/src/main/java/net/minecraft/network/protocol/game/ClientboundLevelChunkPacket.java b/src/main/java/net/minecraft/network/protocol/game/ClientboundLevelChunkPacket.java
+index 96626835fee3c0fdb452acacdc9f737ad90c08de..c28879f32b004f36ff746ea2274f91ddd9501e71 100644
+--- a/src/main/java/net/minecraft/network/protocol/game/ClientboundLevelChunkPacket.java
++++ b/src/main/java/net/minecraft/network/protocol/game/ClientboundLevelChunkPacket.java
+@@ -27,6 +27,15 @@ public class ClientboundLevelChunkPacket implements Packet<ClientGamePacketListe
+     private final int[] biomes;
+     private final byte[] buffer;
+     private final List<CompoundTag> blockEntitiesTags;
++    // Paper start
++    private final java.util.List<Packet> extraPackets = new java.util.ArrayList<>();
++    private static final int TE_LIMIT = Integer.getInteger("Paper.excessiveTELimit", 750);
++
++    @Override
++    public java.util.List<Packet> getExtraPackets() {
++        return extraPackets;
++    }
++    // Paper end
+ 
+     public ClientboundLevelChunkPacket(LevelChunk chunk) {
+         ChunkPos chunkPos = chunk.getPos();
+@@ -44,9 +53,19 @@ public class ClientboundLevelChunkPacket implements Packet<ClientGamePacketListe
+         this.buffer = new byte[this.calculateChunkSize(chunk)];
+         this.availableSections = this.extractChunkData(new FriendlyByteBuf(this.getWriteBuffer()), chunk);
+         this.blockEntitiesTags = Lists.newArrayList();
++        int totalTileEntities = 0; // Paper
+ 
+         for(Entry<BlockPos, BlockEntity> entry2 : chunk.getBlockEntities().entrySet()) {
+             BlockEntity blockEntity = entry2.getValue();
++            // Paper start - improve oversized chunk data packet handling
++            if (++totalTileEntities > TE_LIMIT) {
++                ClientboundBlockEntityDataPacket updatePacket = blockEntity.getUpdatePacket();
++                if (updatePacket != null) {
++                    this.extraPackets.add(updatePacket);
++                    continue;
++                }
++            }
++            // Paper end
+             CompoundTag compoundTag = blockEntity.getUpdateTag();
+             if (blockEntity instanceof net.minecraft.world.level.block.entity.SkullBlockEntity) { net.minecraft.world.level.block.entity.SkullBlockEntity.sanitizeTileEntityUUID(compoundTag); } // Paper
+             this.blockEntitiesTags.add(compoundTag);

patches/server/0308-MC-145260-Fix-Whitelist-On-Off-inconsistency.patch

@@ -11,10 +11,10 @@ everything to the Whitelist object.
 https://github.com/PaperMC/Paper/issues/1880
 
 diff --git a/src/main/java/net/minecraft/server/players/PlayerList.java b/src/main/java/net/minecraft/server/players/PlayerList.java
-index 5b71b487836cdd2ddc75b2039f4dc0177719d345..8d133d3c825f7747081de99ee67d4556e5c19cdd 100644
+index 0df68991eb2ef3dabe779f42c2bf44846ac0d862..4ae234a107d16bc71425af5f2729c428f79e3db7 100644
 --- a/src/main/java/net/minecraft/server/players/PlayerList.java
 +++ b/src/main/java/net/minecraft/server/players/PlayerList.java
-@@ -55,6 +55,7 @@ import net.minecraft.network.protocol.game.ClientboundUpdateMobEffectPacket;
+@@ -62,6 +62,7 @@ import net.minecraft.network.protocol.game.ClientboundUpdateMobEffectPacket;
  import net.minecraft.network.protocol.game.ClientboundUpdateRecipesPacket;
  import net.minecraft.network.protocol.game.ClientboundUpdateTagsPacket;
  import net.minecraft.resources.ResourceKey;
@@ -22,24 +22,15 @@ index 5b71b487836cdd2ddc75b2039f4dc0177719d345..8d133d3c825f7747081de99ee67d4556
  import net.minecraft.server.MinecraftServer;
  import net.minecraft.server.PlayerAdvancements;
  import net.minecraft.server.ServerScoreboard;
-@@ -1012,9 +1013,9 @@ public abstract class PlayerList {
+@@ -996,9 +997,9 @@ public abstract class PlayerList {
      }
      public boolean isWhitelisted(GameProfile gameprofile, org.bukkit.event.player.PlayerLoginEvent loginEvent) {
          boolean isOp = this.ops.contains(gameprofile);
 -        boolean isWhitelisted = !this.doWhiteList || isOp || this.whitelist.contains(gameprofile);
-+        boolean isWhitelisted = !this.isUsingWhitelist() || isOp || this.whitelist.contains(gameprofile);
++        boolean isWhitelisted = !this.isUsingWhitelist() || isOp || this.whitelist.contains(gameprofile); // Paper - use isUsingWhitelist()
          final com.destroystokyo.paper.event.profile.ProfileWhitelistVerifyEvent event;
--        event = new com.destroystokyo.paper.event.profile.ProfileWhitelistVerifyEvent(MCUtil.toBukkit(gameprofile), this.doWhiteList, isWhitelisted, isOp, org.spigotmc.SpigotConfig.whitelistMessage);
-+        event = new com.destroystokyo.paper.event.profile.ProfileWhitelistVerifyEvent(MCUtil.toBukkit(gameprofile), this.isUsingWhitelist(), isWhitelisted, isOp, org.spigotmc.SpigotConfig.whitelistMessage);
+-        event = new com.destroystokyo.paper.event.profile.ProfileWhitelistVerifyEvent(net.minecraft.server.MCUtil.toBukkit(gameprofile), this.doWhiteList, isWhitelisted, isOp, org.spigotmc.SpigotConfig.whitelistMessage);
++        event = new com.destroystokyo.paper.event.profile.ProfileWhitelistVerifyEvent(net.minecraft.server.MCUtil.toBukkit(gameprofile), this.isUsingWhitelist(), isWhitelisted, isOp, org.spigotmc.SpigotConfig.whitelistMessage); // Paper - use isUsingWhitelist()
          event.callEvent();
          if (!event.isWhitelisted()) {
              if (loginEvent != null) {
-@@ -1062,7 +1063,7 @@ public abstract class PlayerList {
-         MCUtil.ensureMain("Save Players" , () -> { // Paper - Ensure main
-         MinecraftTimings.savePlayers.startTiming(); // Paper
-         for (int i = 0; i < this.players.size(); ++i) {
--            this.savePlayerFile((EntityPlayer) this.players.get(i));
-+            this.save((ServerPlayer) this.players.get(i));
-         }
-         MinecraftTimings.savePlayers.stopTiming(); // Paper
-         return null; }); // Paper - ensure main

patches/server/0309-Set-Zombie-last-tick-at-start-of-drowning-process.patch

@@ -6,10 +6,10 @@ Subject: [PATCH] Set Zombie last tick at start of drowning process
 Fixes GH-1887
 
 diff --git a/src/main/java/net/minecraft/world/entity/monster/Zombie.java b/src/main/java/net/minecraft/world/entity/monster/Zombie.java
-index ad4eeb15771750193a28116117992270c72a3644..6fecf4188fc0247143edc688c03e645376960687 100644
+index c60d9775230b2ff554eeb38136f8e7c32c47d8cf..ee17cba501e0cc4822bd1278d18b561c77fe9674 100644
 --- a/src/main/java/net/minecraft/world/entity/monster/Zombie.java
 +++ b/src/main/java/net/minecraft/world/entity/monster/Zombie.java
-@@ -220,6 +220,7 @@ public class Zombie extends Monster {
+@@ -225,6 +225,7 @@ public class Zombie extends Monster {
                      ++this.inWaterTime;
                      if (this.inWaterTime >= 600) {
                          this.startUnderWaterConversion(300);

patches/server/0310-Call-WhitelistToggleEvent-when-whitelist-is-toggled.patch

@@ -5,10 +5,10 @@ Subject: [PATCH] Call WhitelistToggleEvent when whitelist is toggled
 
 
 diff --git a/src/main/java/net/minecraft/server/players/PlayerList.java b/src/main/java/net/minecraft/server/players/PlayerList.java
-index 8d133d3c825f7747081de99ee67d4556e5c19cdd..728eaadd3dc619e414ec30feb38c7d4a84b2e539 100644
+index 4ae234a107d16bc71425af5f2729c428f79e3db7..ea336bdf2f15aabe74de82ef6c29b93573254e31 100644
 --- a/src/main/java/net/minecraft/server/players/PlayerList.java
 +++ b/src/main/java/net/minecraft/server/players/PlayerList.java
-@@ -1131,6 +1131,7 @@ public abstract class PlayerList {
+@@ -1115,6 +1115,7 @@ public abstract class PlayerList {
      }
  
      public void setUsingWhiteList(boolean whitelistEnabled) {

patches/server/0311-Use-proper-max-length-when-serialising-BungeeCord-te.patch

@@ -6,26 +6,26 @@ Subject: [PATCH] Use proper max length when serialising BungeeCord text
 
 
 diff --git a/src/main/java/net/minecraft/network/protocol/game/ClientboundChatPacket.java b/src/main/java/net/minecraft/network/protocol/game/ClientboundChatPacket.java
-index f13da9e7d014bc00fbabf0a495b548bba2f59468..002a6c7933f64405707d7d34d3e5c17584539623 100644
+index a64780b4b49d01322d8f755ff540a9622c89e983..26a229f7aa3f4425ed572e2d50730b4e978bf33e 100644
 --- a/src/main/java/net/minecraft/network/protocol/game/ClientboundChatPacket.java
 +++ b/src/main/java/net/minecraft/network/protocol/game/ClientboundChatPacket.java
-@@ -9,7 +9,7 @@ import net.minecraft.network.chat.Component;
+@@ -8,7 +8,7 @@ import net.minecraft.network.chat.Component;
  import net.minecraft.network.protocol.Packet;
  
  public class ClientboundChatPacket implements Packet<ClientGamePacketListener> {
 -
 +    private static final int MAX_LENGTH = Short.MAX_VALUE * 8 + 8; // Paper
-     private Component message;
+     private final Component message;
      public net.kyori.adventure.text.Component adventure$message; // Paper
      public net.md_5.bungee.api.chat.BaseComponent[] components; // Spigot
-@@ -43,9 +43,9 @@ public class ClientboundChatPacket implements Packet<ClientGamePacketListener> {
-             //packetdataserializer.a(net.md_5.bungee.chat.ComponentSerializer.toString(components)); // Paper - comment, replaced with below
+@@ -39,9 +39,9 @@ public class ClientboundChatPacket implements Packet<ClientGamePacketListener> {
+             // buf.writeUtf(net.md_5.bungee.chat.ComponentSerializer.toString(components)); // Paper - comment, replaced with below
              // Paper start - don't nest if we don't need to so that we can preserve formatting
              if (this.components.length == 1) {
--                buf.writeByteArray(net.md_5.bungee.chat.ComponentSerializer.toString(this.components[0]));
+-                buf.writeUtf(net.md_5.bungee.chat.ComponentSerializer.toString(this.components[0]));
 +                buf.writeUtf(net.md_5.bungee.chat.ComponentSerializer.toString(this.components[0]), MAX_LENGTH); // Paper - use proper max length
              } else {
--                buf.writeByteArray(net.md_5.bungee.chat.ComponentSerializer.toString(this.components));
+-                buf.writeUtf(net.md_5.bungee.chat.ComponentSerializer.toString(this.components));
 +                buf.writeUtf(net.md_5.bungee.chat.ComponentSerializer.toString(this.components), MAX_LENGTH); // Paper - use proper max length
              }
              // Paper end

patches/server/0312-Entity-getEntitySpawnReason.patch

@@ -10,22 +10,22 @@ persistenting Living Entity, SPAWNER for spawners,
 or DEFAULT since data was not stored.
 
 diff --git a/src/main/java/net/minecraft/server/level/ServerLevel.java b/src/main/java/net/minecraft/server/level/ServerLevel.java
-index 2ab221e5315dde4e556ee49a6962ae0091ccf616..d03b4f97102dfb88927a94ee5a5d397ac493eaa1 100644
+index 731c8e38c8daf04fee40a5ccfb0715b20f4d890f..940e6587125df1f203cdeeefc31658635badea81 100644
 --- a/src/main/java/net/minecraft/server/level/ServerLevel.java
 +++ b/src/main/java/net/minecraft/server/level/ServerLevel.java
-@@ -1035,6 +1035,7 @@ public class ServerLevel extends net.minecraft.world.level.Level implements Worl
+@@ -1093,6 +1093,7 @@ public class ServerLevel extends net.minecraft.world.level.Level implements Worl
      // CraftBukkit start
      private boolean addEntity0(Entity entity, CreatureSpawnEvent.SpawnReason spawnReason) {
          org.spigotmc.AsyncCatcher.catchOp("entity add"); // Spigot
 +        if (entity.spawnReason == null) entity.spawnReason = spawnReason; // Paper
-         // Paper start
-         if (entity.valid) {
-             MinecraftServer.LOGGER.error("Attempted Double World add on " + entity, new Throwable());
+         if (entity.isRemoved()) {
+             // WorldServer.LOGGER.warn("Tried to add entity {} but it was marked as removed already", EntityTypes.getName(entity.getEntityType())); // CraftBukkit
+             return false;
 diff --git a/src/main/java/net/minecraft/server/players/PlayerList.java b/src/main/java/net/minecraft/server/players/PlayerList.java
-index 728eaadd3dc619e414ec30feb38c7d4a84b2e539..4d813b6556030354f51c1ee5f18eac2166b44576 100644
+index ea336bdf2f15aabe74de82ef6c29b93573254e31..da3100d6577166e222164c174b28020541dd8e3a 100644
 --- a/src/main/java/net/minecraft/server/players/PlayerList.java
 +++ b/src/main/java/net/minecraft/server/players/PlayerList.java
-@@ -331,7 +331,7 @@ public abstract class PlayerList {
+@@ -335,7 +335,7 @@ public abstract class PlayerList {
              // CraftBukkit start
              ServerLevel finalWorldServer = worldserver1;
              Entity entity = EntityType.loadEntityRecursive(nbttagcompound1.getCompound("Entity"), finalWorldServer, (entity1) -> {
@@ -35,10 +35,10 @@ index 728eaadd3dc619e414ec30feb38c7d4a84b2e539..4d813b6556030354f51c1ee5f18eac21
              });
  
 diff --git a/src/main/java/net/minecraft/world/entity/Entity.java b/src/main/java/net/minecraft/world/entity/Entity.java
-index d106118dbf4fb270f8526e40a767dd4c563a333f..6faac8773136412ca129dfa884178f311e197f6e 100644
+index 8df9bd656374d0b43af378c61c1df7b951085b58..fcd3e6bfb4b1d0aefcb34eaec1212b08498dd5af 100644
 --- a/src/main/java/net/minecraft/world/entity/Entity.java
 +++ b/src/main/java/net/minecraft/world/entity/Entity.java
-@@ -63,6 +63,8 @@ import net.minecraft.world.InteractionHand;
+@@ -67,6 +67,8 @@ import net.minecraft.world.InteractionHand;
  import net.minecraft.world.InteractionResult;
  import net.minecraft.world.Nameable;
  import net.minecraft.world.damagesource.DamageSource;
@@ -47,30 +47,30 @@ index d106118dbf4fb270f8526e40a767dd4c563a333f..6faac8773136412ca129dfa884178f31
  import net.minecraft.world.entity.item.ItemEntity;
  import net.minecraft.world.entity.player.Player;
  import net.minecraft.world.entity.vehicle.Boat;
-@@ -157,6 +159,7 @@ public abstract class Entity implements Nameable, CommandSource, net.minecraft.s
+@@ -166,6 +168,7 @@ public abstract class Entity implements Nameable, EntityAccess, CommandSource, n
+             }
          }
      };
-     public List<Entity> entitySlice = null;
 +    public org.bukkit.event.entity.CreatureSpawnEvent.SpawnReason spawnReason;
      // Paper end
  
      public com.destroystokyo.paper.loottable.PaperLootableInventoryData lootableData; // Paper
-@@ -1673,6 +1676,9 @@ public abstract class Entity implements Nameable, CommandSource, net.minecraft.s
-                 tag.setUUID("Paper.OriginWorld", origin.getWorld().getUID());
-                 tag.put("Paper.Origin", this.createList(origin.getX(), origin.getY(), origin.getZ()));
+@@ -1841,6 +1844,9 @@ public abstract class Entity implements Nameable, EntityAccess, CommandSource, n
+                 nbt.setUUID("Paper.OriginWorld", origin.getWorld().getUID());
+                 nbt.put("Paper.Origin", this.newDoubleList(origin.getX(), origin.getY(), origin.getZ()));
              }
 +            if (spawnReason != null) {
-+                tag.putString("Paper.SpawnReason", spawnReason.name());
++                nbt.putString("Paper.SpawnReason", spawnReason.name());
 +            }
              // Save entity's from mob spawner status
              if (spawnedViaMobSpawner) {
-                 tag.putBoolean("Paper.FromMobSpawner", true);
-@@ -1811,6 +1817,26 @@ public abstract class Entity implements Nameable, CommandSource, net.minecraft.s
+                 nbt.putBoolean("Paper.FromMobSpawner", true);
+@@ -1983,6 +1989,26 @@ public abstract class Entity implements Nameable, EntityAccess, CommandSource, n
              }
  
-             spawnedViaMobSpawner = tag.getBoolean("Paper.FromMobSpawner"); // Restore entity's from mob spawner status
-+            if (tag.contains("Paper.SpawnReason")) {
-+                String spawnReasonName = tag.getString("Paper.SpawnReason");
+             spawnedViaMobSpawner = nbt.getBoolean("Paper.FromMobSpawner"); // Restore entity's from mob spawner status
++            if (nbt.contains("Paper.SpawnReason")) {
++                String spawnReasonName = nbt.getString("Paper.SpawnReason");
 +                try {
 +                    spawnReason = org.bukkit.event.entity.CreatureSpawnEvent.SpawnReason.valueOf(spawnReasonName);
 +                } catch (Exception ignored) {
@@ -81,7 +81,7 @@ index d106118dbf4fb270f8526e40a767dd4c563a333f..6faac8773136412ca129dfa884178f31
 +                if (spawnedViaMobSpawner) {
 +                    spawnReason = org.bukkit.event.entity.CreatureSpawnEvent.SpawnReason.SPAWNER;
 +                } else if (this instanceof Mob && (this instanceof Animal || this instanceof AbstractFish) && !((Mob) this).removeWhenFarAway(0.0)) {
-+                    if (!tag.getBoolean("PersistenceRequired")) {
++                    if (!nbt.getBoolean("PersistenceRequired")) {
 +                        spawnReason = org.bukkit.event.entity.CreatureSpawnEvent.SpawnReason.NATURAL;
 +                    }
 +                }
@@ -93,22 +93,22 @@ index d106118dbf4fb270f8526e40a767dd4c563a333f..6faac8773136412ca129dfa884178f31
  
          } catch (Throwable throwable) {
 diff --git a/src/main/java/net/minecraft/world/level/BaseSpawner.java b/src/main/java/net/minecraft/world/level/BaseSpawner.java
-index 1ce675d0d24ceb5724f5ac2d8f671e38f2735f74..3a7aec9bd2f3fd1b4a1981fb6a8c64b69e4875f8 100644
+index 12a78685848b7fd945a472902d8200ea1d50b9ec..3aadcb472ab808ee981065ddfa86be6cbf38c8d9 100644
 --- a/src/main/java/net/minecraft/world/level/BaseSpawner.java
 +++ b/src/main/java/net/minecraft/world/level/BaseSpawner.java
-@@ -183,6 +183,7 @@ public abstract class BaseSpawner {
-                                 // Spigot End
-                             }
+@@ -167,6 +167,7 @@ public abstract class BaseSpawner {
+                             // Spigot End
+                         }
                          entity.spawnedViaMobSpawner = true; // Paper
-+                            entity.spawnReason = org.bukkit.event.entity.CreatureSpawnEvent.SpawnReason.SPAWNER; // Paper
-                             flag = true; // Paper
-                             // Spigot Start
-                             if (org.bukkit.craftbukkit.event.CraftEventFactory.callSpawnerSpawnEvent(entity, blockposition).isCancelled()) {
++                        entity.spawnReason = org.bukkit.event.entity.CreatureSpawnEvent.SpawnReason.SPAWNER; // Paper
+                         flag = true; // Paper
+                         // Spigot Start
+                         if (org.bukkit.craftbukkit.event.CraftEventFactory.callSpawnerSpawnEvent(entity, pos).isCancelled()) {
 diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftEntity.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftEntity.java
-index e1bbaf620f3ed2a6cb9ce8007a78c4cee47b653e..7ad4fb57af32cc1b8278688381e1b058ed8437db 100644
+index c381ea321b0fb3498e3f101ee059ac7d42aa029a..33bc56eba4229d844e3af6ff4662d96450e929af 100644
 --- a/src/main/java/org/bukkit/craftbukkit/entity/CraftEntity.java
 +++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftEntity.java
-@@ -1106,5 +1106,10 @@ public abstract class CraftEntity implements org.bukkit.entity.Entity {
+@@ -1163,5 +1163,10 @@ public abstract class CraftEntity implements org.bukkit.entity.Entity {
      public boolean fromMobSpawner() {
          return getHandle().spawnedViaMobSpawner;
      }

patches/server/0313-Update-entity-Metadata-for-all-tracked-players.patch

@@ -0,0 +1,76 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: AgentTroll <woodyc40@gmail.com>
+Date: Fri, 22 Mar 2019 22:24:03 -0700
+Subject: [PATCH] Update entity Metadata for all tracked players
+
+
+diff --git a/src/main/java/net/minecraft/server/level/ChunkMap.java b/src/main/java/net/minecraft/server/level/ChunkMap.java
+index 8311d921ded1c81a1f561dc13db2010d2b7ce5d6..95ac30f56a9268f14d2518974c5a52e08f40ea18 100644
+--- a/src/main/java/net/minecraft/server/level/ChunkMap.java
++++ b/src/main/java/net/minecraft/server/level/ChunkMap.java
+@@ -1281,6 +1281,7 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider
+                 } else {
+                     ChunkMap.TrackedEntity playerchunkmap_entitytracker = new ChunkMap.TrackedEntity(entity, i, j, entitytypes.trackDeltas());
+ 
++                    entity.tracker = playerchunkmap_entitytracker; // Paper - Fast access to tracker
+                     this.entityMap.put(entity.getId(), playerchunkmap_entitytracker);
+                     playerchunkmap_entitytracker.updatePlayers(this.level.players());
+                     if (entity instanceof ServerPlayer) {
+@@ -1323,7 +1324,7 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider
+         if (playerchunkmap_entitytracker1 != null) {
+             playerchunkmap_entitytracker1.broadcastRemoved();
+         }
+-
++        entity.tracker = null; // Paper - We're no longer tracked
+     }
+ 
+     protected void tick() {
+diff --git a/src/main/java/net/minecraft/server/level/ServerEntity.java b/src/main/java/net/minecraft/server/level/ServerEntity.java
+index ad9bbda31a4cdb306ca40f2b99e4b815c4f136bd..28afe2f238ded241acf77c3272a44068646b9133 100644
+--- a/src/main/java/net/minecraft/server/level/ServerEntity.java
++++ b/src/main/java/net/minecraft/server/level/ServerEntity.java
+@@ -392,6 +392,12 @@ public class ServerEntity {
+         return ClientboundMoveEntityPacket.packetToEntity(this.xp, this.yp, this.zp);
+     }
+ 
++    // Paper start - Add broadcast method
++    void broadcast(Packet<?> packet) {
++        this.broadcast.accept(packet);
++    }
++    // Paper end
++
+     private void broadcastAndSend(Packet<?> packet) {
+         this.broadcast.accept(packet);
+         if (this.entity instanceof ServerPlayer) {
+diff --git a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
+index defebf7b45e4f006fa7e575b5dbd01ac1e231d5a..6c4266d847b1181a055fa425d5734032dadabf93 100644
+--- a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
++++ b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
+@@ -2289,7 +2289,14 @@ public class ServerGamePacketListenerImpl implements ServerPlayerConnection, Ser
+ 
+                         if (event.isCancelled() || ServerGamePacketListenerImpl.this.player.getInventory().getSelected() == null || ServerGamePacketListenerImpl.this.player.getInventory().getSelected().getItem() != origItem) {
+                             // Refresh the current entity metadata
+-                            ServerGamePacketListenerImpl.this.send(new ClientboundSetEntityDataPacket(entity.getId(), entity.getEntityData(), true));
++                            // Paper start - update entity for all players
++                            ClientboundSetEntityDataPacket packet1 = new ClientboundSetEntityDataPacket(entity.getId(), entity.getEntityData(), true);
++                            if (entity.tracker != null) {
++                                entity.tracker.broadcast(packet1);
++                            } else {
++                                ServerGamePacketListenerImpl.this.send(packet1);
++                            }
++                            // Paper end
+                         }
+ 
+                         if (event.isCancelled()) {
+diff --git a/src/main/java/net/minecraft/world/entity/Entity.java b/src/main/java/net/minecraft/world/entity/Entity.java
+index fcd3e6bfb4b1d0aefcb34eaec1212b08498dd5af..a5159198003e43ce272ae73941d2be47d50eedc9 100644
+--- a/src/main/java/net/minecraft/world/entity/Entity.java
++++ b/src/main/java/net/minecraft/world/entity/Entity.java
+@@ -300,6 +300,7 @@ public abstract class Entity implements Nameable, EntityAccess, CommandSource, n
+     public boolean forceExplosionKnockback; // SPIGOT-949
+     public boolean persistentInvisibility = false;
+     public org.bukkit.Location origin; // Paper
++    public net.minecraft.server.level.ChunkMap.TrackedEntity tracker; // Paper - fast access to tracker
+     // Spigot start
+     public final org.spigotmc.ActivationRange.ActivationType activationType = org.spigotmc.ActivationRange.initializeEntityActivationType(this);
+     public final boolean defaultActivationState;

patches/server/0314-Fire-event-on-GS4-query.patch

@@ -0,0 +1,209 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Mark Vainomaa <mikroskeem@mikroskeem.eu>
+Date: Sun, 17 Mar 2019 21:46:56 +0200
+Subject: [PATCH] Fire event on GS4 query
+
+
+diff --git a/src/main/java/net/minecraft/server/rcon/NetworkDataOutputStream.java b/src/main/java/net/minecraft/server/rcon/NetworkDataOutputStream.java
+index 51cb2644aa516a59e19fecb308d519dbc7e5fb11..e548aa0ca4e1e94ab628614b44fc11568ca3beff 100644
+--- a/src/main/java/net/minecraft/server/rcon/NetworkDataOutputStream.java
++++ b/src/main/java/net/minecraft/server/rcon/NetworkDataOutputStream.java
+@@ -22,6 +22,16 @@ public class NetworkDataOutputStream {
+         this.dataOutputStream.write(0);
+     }
+ 
++    // Paper start - unchecked exception variant to use in Stream API
++    public void writeStringUnchecked(String string) {
++        try {
++            writeString(string);
++        } catch (IOException e) {
++            com.destroystokyo.paper.util.SneakyThrow.sneaky(e);
++        }
++    }
++    // Paper end
++
+     public void write(int value) throws IOException {
+         this.dataOutputStream.write(value);
+     }
+diff --git a/src/main/java/net/minecraft/server/rcon/thread/QueryThreadGs4.java b/src/main/java/net/minecraft/server/rcon/thread/QueryThreadGs4.java
+index 02bb0b2df37ead741adfef38d7479ba6f691dc2d..4632e8f0d27057bf3c47057124b347237ab58111 100644
+--- a/src/main/java/net/minecraft/server/rcon/thread/QueryThreadGs4.java
++++ b/src/main/java/net/minecraft/server/rcon/thread/QueryThreadGs4.java
+@@ -94,33 +94,52 @@ public class QueryThreadGs4 extends GenericThread {
+         if (3 <= i && -2 == bs[0] && -3 == bs[1]) {
+             LOGGER.debug("Packet '{}' [{}]", PktUtils.toHexString(bs[2]), socketAddress);
+             switch(bs[2]) {
+-            case 0:
+-                if (!this.validChallenge(packet)) {
+-                    LOGGER.debug("Invalid challenge [{}]", (Object)socketAddress);
+-                    return false;
+-                } else if (15 == i) {
+-                    this.sendTo(this.buildRuleResponse(packet), packet);
+-                    LOGGER.debug("Rules [{}]", (Object)socketAddress);
+-                } else {
+-                    NetworkDataOutputStream networkDataOutputStream = new NetworkDataOutputStream(1460);
+-                    networkDataOutputStream.write(0);
+-                    networkDataOutputStream.writeBytes(this.getIdentBytes(packet.getSocketAddress()));
+-                    networkDataOutputStream.writeString(this.serverName);
+-                    networkDataOutputStream.writeString("SMP");
+-                    networkDataOutputStream.writeString(this.worldName);
+-                    networkDataOutputStream.writeString(Integer.toString(this.serverInterface.getPlayerCount()));
+-                    networkDataOutputStream.writeString(Integer.toString(this.maxPlayers));
+-                    networkDataOutputStream.writeShort((short)this.serverPort);
+-                    networkDataOutputStream.writeString(this.hostIp);
+-                    this.sendTo(networkDataOutputStream.toByteArray(), packet);
+-                    LOGGER.debug("Status [{}]", (Object)socketAddress);
+-                }
+-            default:
+-                return true;
+-            case 9:
+-                this.sendChallenge(packet);
+-                LOGGER.debug("Challenge [{}]", (Object)socketAddress);
+-                return true;
++                case 0:
++                    if (!this.validChallenge(packet)) {
++                        LOGGER.debug("Invalid challenge [{}]", (Object)socketAddress);
++                        return false;
++                    } else if (15 == i) {
++                        this.sendTo(this.buildRuleResponse(packet), packet);
++                        LOGGER.debug("Rules [{}]", (Object)socketAddress);
++                    } else {
++                        NetworkDataOutputStream networkDataOutputStream = new NetworkDataOutputStream(1460);
++                        networkDataOutputStream.write(0);
++                        networkDataOutputStream.writeBytes(this.getIdentBytes(packet.getSocketAddress()));
++
++                        com.destroystokyo.paper.event.server.GS4QueryEvent.QueryType queryType =
++                            com.destroystokyo.paper.event.server.GS4QueryEvent.QueryType.BASIC;
++                        com.destroystokyo.paper.event.server.GS4QueryEvent.QueryResponse queryResponse = com.destroystokyo.paper.event.server.GS4QueryEvent.QueryResponse.builder()
++                            .motd(this.serverName)
++                            .map(this.worldName)
++                            .currentPlayers(this.serverInterface.getPlayerCount())
++                            .maxPlayers(this.maxPlayers)
++                            .port(this.serverPort)
++                            .hostname(this.hostIp)
++                            .gameVersion(this.serverInterface.getServerVersion())
++                            .serverVersion(org.bukkit.Bukkit.getServer().getName() + " on " + org.bukkit.Bukkit.getServer().getBukkitVersion())
++                            .build();
++                        com.destroystokyo.paper.event.server.GS4QueryEvent queryEvent =
++                            new com.destroystokyo.paper.event.server.GS4QueryEvent(queryType, packet.getAddress(), queryResponse);
++                        queryEvent.callEvent();
++                        queryResponse = queryEvent.getResponse();
++
++                        networkDataOutputStream.writeString(queryResponse.getMotd());
++                        networkDataOutputStream.writeString("SMP");
++                        networkDataOutputStream.writeString(queryResponse.getMap());
++                        networkDataOutputStream.writeString(Integer.toString(queryResponse.getCurrentPlayers()));
++                        networkDataOutputStream.writeString(Integer.toString(queryResponse.getMaxPlayers()));
++                        networkDataOutputStream.writeShort((short) queryResponse.getPort());
++                        networkDataOutputStream.writeString(queryResponse.getHostname());
++                        // Paper end
++                        this.sendTo(networkDataOutputStream.toByteArray(), packet);
++                        LOGGER.debug("Status [{}]", (Object)socketAddress);
++                    }
++                default:
++                    return true;
++                case 9:
++                    this.sendChallenge(packet);
++                    LOGGER.debug("Challenge [{}]", (Object)socketAddress);
++                    return true;
+             }
+         } else {
+             LOGGER.debug("Invalid packet [{}]", (Object)socketAddress);
+@@ -146,37 +165,79 @@ public class QueryThreadGs4 extends GenericThread {
+             this.rulesResponse.writeString("splitnum");
+             this.rulesResponse.write(128);
+             this.rulesResponse.write(0);
++            // Paper start
++            // Pack plugins
++            java.util.List<com.destroystokyo.paper.event.server.GS4QueryEvent.QueryResponse.PluginInformation> plugins = java.util.Collections.emptyList();
++            org.bukkit.plugin.Plugin[] bukkitPlugins;
++            if (((net.minecraft.server.dedicated.DedicatedServer) this.serverInterface).server.getQueryPlugins() && (bukkitPlugins = org.bukkit.Bukkit.getPluginManager().getPlugins()).length > 0) {
++                plugins = java.util.stream.Stream.of(bukkitPlugins)
++                    .map(plugin -> com.destroystokyo.paper.event.server.GS4QueryEvent.QueryResponse.PluginInformation.of(plugin.getName(), plugin.getDescription().getVersion()))
++                    .collect(java.util.stream.Collectors.toList());
++            }
++
++            com.destroystokyo.paper.event.server.GS4QueryEvent.QueryResponse queryResponse = com.destroystokyo.paper.event.server.GS4QueryEvent.QueryResponse.builder()
++                .motd(this.serverName)
++                .map(this.worldName)
++                .currentPlayers(this.serverInterface.getPlayerCount())
++                .maxPlayers(this.maxPlayers)
++                .port(this.serverPort)
++                .hostname(this.hostIp)
++                .plugins(plugins)
++                .players(this.serverInterface.getPlayerNames())
++                .gameVersion(this.serverInterface.getServerVersion())
++                .serverVersion(org.bukkit.Bukkit.getServer().getName() + " on " + org.bukkit.Bukkit.getServer().getBukkitVersion())
++                .build();
++            com.destroystokyo.paper.event.server.GS4QueryEvent.QueryType queryType =
++                com.destroystokyo.paper.event.server.GS4QueryEvent.QueryType.FULL;
++            com.destroystokyo.paper.event.server.GS4QueryEvent queryEvent =
++                new com.destroystokyo.paper.event.server.GS4QueryEvent(queryType, packet.getAddress(), queryResponse);
++            queryEvent.callEvent();
++            queryResponse = queryEvent.getResponse();
+             this.rulesResponse.writeString("hostname");
+-            this.rulesResponse.writeString(this.serverName);
++            this.rulesResponse.writeString(queryResponse.getMotd());
+             this.rulesResponse.writeString("gametype");
+             this.rulesResponse.writeString("SMP");
+             this.rulesResponse.writeString("game_id");
+             this.rulesResponse.writeString("MINECRAFT");
+             this.rulesResponse.writeString("version");
+-            this.rulesResponse.writeString(this.serverInterface.getServerVersion());
++            this.rulesResponse.writeString(queryResponse.getGameVersion());
+             this.rulesResponse.writeString("plugins");
+-            this.rulesResponse.writeString(this.serverInterface.getPluginNames());
++            java.lang.StringBuilder pluginsString = new java.lang.StringBuilder();
++            pluginsString.append(queryResponse.getServerVersion());
++            if (!queryResponse.getPlugins().isEmpty()) {
++                pluginsString.append(": ");
++                java.util.Iterator<com.destroystokyo.paper.event.server.GS4QueryEvent.QueryResponse.PluginInformation> iter = queryResponse.getPlugins().iterator();
++                while (iter.hasNext()) {
++                    com.destroystokyo.paper.event.server.GS4QueryEvent.QueryResponse.PluginInformation info = iter.next();
++                    pluginsString.append(info.getName());
++                    if (info.getVersion() != null) {
++                        pluginsString.append(' ').append(info.getVersion().replace(";", ","));
++                    }
++                    if (iter.hasNext()) {
++                        pluginsString.append(';').append(' ');
++                    }
++                }
++            }
++            this.rulesResponse.writeString(pluginsString.toString());
+             this.rulesResponse.writeString("map");
+-            this.rulesResponse.writeString(this.worldName);
++            this.rulesResponse.writeString(queryResponse.getMap());
+             this.rulesResponse.writeString("numplayers");
+-            this.rulesResponse.writeString("" + this.serverInterface.getPlayerCount());
++            this.rulesResponse.writeString(Integer.toString(queryResponse.getCurrentPlayers()));
+             this.rulesResponse.writeString("maxplayers");
+-            this.rulesResponse.writeString("" + this.maxPlayers);
++            this.rulesResponse.writeString(Integer.toString(queryResponse.getMaxPlayers()));
+             this.rulesResponse.writeString("hostport");
+-            this.rulesResponse.writeString("" + this.serverPort);
++            this.rulesResponse.writeString(Integer.toString(queryResponse.getPort()));
+             this.rulesResponse.writeString("hostip");
+-            this.rulesResponse.writeString(this.hostIp);
+-            this.rulesResponse.write(0);
+-            this.rulesResponse.write(1);
++            this.rulesResponse.writeString(queryResponse.getHostname());
++            // The "meaningless data" start, copied from above
++            this.rulesResponse.writeInt(0);
++            this.rulesResponse.writeInt(1);
+             this.rulesResponse.writeString("player_");
+-            this.rulesResponse.write(0);
+-            String[] strings = this.serverInterface.getPlayerNames();
+-
+-            for(String string : strings) {
+-                this.rulesResponse.writeString(string);
+-            }
+-
+-            this.rulesResponse.write(0);
++            this.rulesResponse.writeInt(0);
++            // "Meaningless data" end
++            queryResponse.getPlayers().forEach(this.rulesResponse::writeStringUnchecked);
++            this.rulesResponse.writeInt(0);
++            // Paper end
+             return this.rulesResponse.toByteArray();
+         }
+     }

patches/server/0315-Implement-PlayerPostRespawnEvent.patch

@@ -5,11 +5,11 @@ Subject: [PATCH] Implement PlayerPostRespawnEvent
 
 
 diff --git a/src/main/java/net/minecraft/server/players/PlayerList.java b/src/main/java/net/minecraft/server/players/PlayerList.java
-index 4d813b6556030354f51c1ee5f18eac2166b44576..7412765020854caabd32fb6f4fffcf7f4bf6dba7 100644
+index da3100d6577166e222164c174b28020541dd8e3a..c7956664427ca97544d1b47992a62c95d2fc9690 100644
 --- a/src/main/java/net/minecraft/server/players/PlayerList.java
 +++ b/src/main/java/net/minecraft/server/players/PlayerList.java
-@@ -737,9 +737,14 @@ public abstract class PlayerList {
-         // this.a(entityplayer1, entityplayer, worldserver1); // CraftBukkit - removed
+@@ -715,9 +715,14 @@ public abstract class PlayerList {
+ 
          boolean flag2 = false;
  
 +        // Paper start
@@ -24,7 +24,7 @@ index 4d813b6556030354f51c1ee5f18eac2166b44576..7412765020854caabd32fb6f4fffcf7f
              ServerLevel worldserver1 = this.server.getLevel(entityplayer.getRespawnDimension());
              if (worldserver1 != null) {
                  Optional optional;
-@@ -790,6 +795,7 @@ public abstract class PlayerList {
+@@ -768,6 +773,7 @@ public abstract class PlayerList {
  
              location = respawnEvent.getRespawnLocation();
              if (!flag) entityplayer.reset(); // SPIGOT-4785
@@ -32,7 +32,7 @@ index 4d813b6556030354f51c1ee5f18eac2166b44576..7412765020854caabd32fb6f4fffcf7f
          } else {
              location.setWorld(worldserver.getWorld());
          }
-@@ -847,6 +853,13 @@ public abstract class PlayerList {
+@@ -825,6 +831,13 @@ public abstract class PlayerList {
          if (entityplayer.connection.isDisconnected()) {
              this.save(entityplayer);
          }

settings.gradle.kts

@@ -1,5 +1,6 @@
 pluginManagement {
     repositories {
+        mavenLocal()
         gradlePluginPortal()
         maven("https://wav.jfrog.io/artifactory/repo/")
     }