Patched

2023-06-08 03:20:03 -04:00 · 2023-06-08 03:20:03 -04:00 · 91b45c49ce
commit 91b45c49ce
parent 6d118492b6
59 changed files with 251 additions and 615 deletions
--- a/patches/server/0686-Distance-manager-tick-timings.patch
+++ b/patches/server/0686-Distance-manager-tick-timings.patch
@ -0,0 +1,34 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Spottedleaf <Spottedleaf@users.noreply.github.com>
+Date: Sat, 18 Jul 2020 16:03:57 -0700
+Subject: [PATCH] Distance manager tick timings
+
+Recently this has been taking up more time, so add a timings to
+really figure out how much.
+
+diff --git a/src/main/java/co/aikar/timings/MinecraftTimings.java b/src/main/java/co/aikar/timings/MinecraftTimings.java
+index efbf77024d235d8af9f7efc938c17afd76a51b0c..670dcfa32d003870091b75937f1603a5ac9fa7d1 100644
+--- a/src/main/java/co/aikar/timings/MinecraftTimings.java
+++ b/src/main/java/co/aikar/timings/MinecraftTimings.java
+@@ -46,6 +46,7 @@ public final class MinecraftTimings {
+ 
+     public static final Timing antiXrayUpdateTimer = Timings.ofSafe("anti-xray - update");
+     public static final Timing antiXrayObfuscateTimer = Timings.ofSafe("anti-xray - obfuscate");
+    public static final Timing distanceManagerTick = Timings.ofSafe("Distance Manager Tick"); // Paper - add timings for distance manager
+ 
+     public static final Timing midTickChunkTasks = Timings.ofSafe("Mid Tick Chunk Tasks");
+ 
+diff --git a/src/main/java/io/papermc/paper/chunk/system/scheduling/ChunkHolderManager.java b/src/main/java/io/papermc/paper/chunk/system/scheduling/ChunkHolderManager.java
+index 718c1dd7b52fb9a501d552fdbcb3f9ff79d127d8..3ea7a4b8de338610399d5fe4ff6cf07251916448 100644
+--- a/src/main/java/io/papermc/paper/chunk/system/scheduling/ChunkHolderManager.java
+++ b/src/main/java/io/papermc/paper/chunk/system/scheduling/ChunkHolderManager.java
+@@ -1080,7 +1080,9 @@ public final class ChunkHolderManager {
+     }
+ 
+     public boolean processTicketUpdates() {
+        co.aikar.timings.MinecraftTimings.distanceManagerTick.startTiming(); try { // Paper - add timings for distance manager
+         return this.processTicketUpdates(true, true, null);
+        } finally { co.aikar.timings.MinecraftTimings.distanceManagerTick.stopTiming(); } // Paper - add timings for distance manager
+     }
+ 
+     private static final ThreadLocal<List<ChunkProgressionTask>> CURRENT_TICKET_UPDATE_SCHEDULING = new ThreadLocal<>();
--- a/patches/server/0687-Name-craft-scheduler-threads-according-to-the-plugin.patch
+++ b/patches/server/0687-Name-craft-scheduler-threads-according-to-the-plugin.patch
@ -0,0 +1,33 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Spottedleaf <Spottedleaf@users.noreply.github.com>
+Date: Sun, 19 Jul 2020 15:17:01 -0700
+Subject: [PATCH] Name craft scheduler threads according to the plugin using
+ them
+
+Provides quick access to culprits running far more threads than
+they should be
+
+diff --git a/src/main/java/org/bukkit/craftbukkit/scheduler/CraftAsyncTask.java b/src/main/java/org/bukkit/craftbukkit/scheduler/CraftAsyncTask.java
+index 2f3e2a404f55f09ae4db8261e495275e31228034..6d66f83afbeb650b10669fd7eeb24a315951fa86 100644
+--- a/src/main/java/org/bukkit/craftbukkit/scheduler/CraftAsyncTask.java
+++ b/src/main/java/org/bukkit/craftbukkit/scheduler/CraftAsyncTask.java
+@@ -25,7 +25,10 @@ class CraftAsyncTask extends CraftTask {
+     @Override
+     public void run() {
+         final Thread thread = Thread.currentThread();
+-        synchronized (this.workers) {
+        // Paper start - name threads according to running plugin
+        final String nameBefore = thread.getName();
+        thread.setName(nameBefore + " - " + this.getOwner().getName());
+        try { synchronized (this.workers) {  // Paper end - name threads according to running plugin
+             if (getPeriod() == CraftTask.CANCEL) {
+                 // Never continue running after cancelled.
+                 // Checking this with the lock is important!
+@@ -92,6 +95,7 @@ class CraftAsyncTask extends CraftTask {
+                 }
+             }
+         }
+        } finally { thread.setName(nameBefore); } // Paper - name worker thread according
+     }
+ 
+     LinkedList<BukkitWorker> getWorkers() {
--- a/patches/server/0688-Make-sure-inlined-getChunkAt-has-inlined-logic-for-l.patch
+++ b/patches/server/0688-Make-sure-inlined-getChunkAt-has-inlined-logic-for-l.patch
@ -0,0 +1,34 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Spottedleaf <Spottedleaf@users.noreply.github.com>
+Date: Sun, 20 Sep 2020 16:10:49 -0700
+Subject: [PATCH] Make sure inlined getChunkAt has inlined logic for loaded
+ chunks
+
+Tux did some profiling some time ago and showed that the
+previous getChunkAt method which had inlined logic for loaded
+chunks did get inlined, but the standard CPS.getChunkAt
+method was not inlined.
+
+Paper recently reverted this optimisation, so it's been reintroduced
+here.
+
+diff --git a/src/main/java/net/minecraft/world/level/Level.java b/src/main/java/net/minecraft/world/level/Level.java
+index 873a375946949a8f48109d5da925933f3956600b..2ed14a26084150fc67b031a7ab6b76fd8f0b075a 100644
+--- a/src/main/java/net/minecraft/world/level/Level.java
+++ b/src/main/java/net/minecraft/world/level/Level.java
+@@ -369,6 +369,15 @@ public abstract class Level implements LevelAccessor, AutoCloseable {
+ 
+     @Override
+     public final LevelChunk getChunk(int chunkX, int chunkZ) { // Paper - final to help inline
+        // Paper start - make sure loaded chunks get the inlined variant of this function
+        net.minecraft.server.level.ServerChunkCache cps = ((ServerLevel)this).getChunkSource();
+        if (cps.mainThread == Thread.currentThread()) {
+            LevelChunk ifLoaded = cps.getChunkAtIfLoadedMainThread(chunkX, chunkZ);
+            if (ifLoaded != null) {
+                return ifLoaded;
+            }
+        }
+        // Paper end - make sure loaded chunks get the inlined variant of this function
+         return (LevelChunk) this.getChunk(chunkX, chunkZ, ChunkStatus.FULL, true); // Paper - avoid a method jump
+     }
+ 
--- a/patches/server/0689-Add-packet-limiter-config.patch
+++ b/patches/server/0689-Add-packet-limiter-config.patch
@ -0,0 +1,99 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Spottedleaf <Spottedleaf@users.noreply.github.com>
+Date: Fri, 30 Oct 2020 22:37:16 -0700
+Subject: [PATCH] Add packet limiter config
+
+Example config:
+packet-limiter:
+  kick-message: '&cSent too many packets'
+  limits:
+    all:
+      interval: 7.0
+      max-packet-rate: 500.0
+    ServerboundPlaceRecipePacket:
+      interval: 4.0
+      max-packet-rate: 5.0
+      action: DROP
+
+all section refers to all incoming packets, the action for all is
+hard coded to KICK.
+
+For specific limits, the section name is the class's name,
+and an action can be defined: DROP or KICK
+
+If interval or rate are less-than 0, the limit is ignored
+
+diff --git a/src/main/java/net/minecraft/network/Connection.java b/src/main/java/net/minecraft/network/Connection.java
+index b7b8ac7f0e93c183e0e7f39cb753f28daace843f..fde67116dde5dee59789de0e2ee70334db429559 100644
+--- a/src/main/java/net/minecraft/network/Connection.java
+++ b/src/main/java/net/minecraft/network/Connection.java
+@@ -120,6 +120,23 @@ public class Connection extends SimpleChannelInboundHandler<Packet<?>> {
+     private static boolean enableExplicitFlush = Boolean.getBoolean("paper.explicit-flush");
+     // Paper end
+ 
+    // Paper start - packet limiter
+    protected final Object PACKET_LIMIT_LOCK = new Object();
+    protected final @Nullable io.papermc.paper.util.IntervalledCounter allPacketCounts = io.papermc.paper.configuration.GlobalConfiguration.get().packetLimiter.allPackets.isEnabled() ? new io.papermc.paper.util.IntervalledCounter(
+        (long)(io.papermc.paper.configuration.GlobalConfiguration.get().packetLimiter.allPackets.interval() * 1.0e9)
+    ) : null;
+    protected final java.util.Map<Class<? extends net.minecraft.network.protocol.Packet<?>>, io.papermc.paper.util.IntervalledCounter> packetSpecificLimits = new java.util.HashMap<>();
+
+    private boolean stopReadingPackets;
+    private void killForPacketSpam() {
+        this.sendPacket(new ClientboundDisconnectPacket(io.papermc.paper.adventure.PaperAdventure.asVanilla(io.papermc.paper.configuration.GlobalConfiguration.get().packetLimiter.kickMessage)), PacketSendListener.thenRun(() -> {
+            this.disconnect(io.papermc.paper.adventure.PaperAdventure.asVanilla(io.papermc.paper.configuration.GlobalConfiguration.get().packetLimiter.kickMessage));
+        }));
+        this.setReadOnly();
+        this.stopReadingPackets = true;
+    }
+    // Paper end - packet limiter
+
+     public Connection(PacketFlow side) {
+         this.receiving = side;
+     }
+@@ -213,6 +230,45 @@ public class Connection extends SimpleChannelInboundHandler<Packet<?>> {
+ 
+     protected void channelRead0(ChannelHandlerContext channelhandlercontext, Packet<?> packet) {
+         if (this.channel.isOpen()) {
+            // Paper start - packet limiter
+            if (this.stopReadingPackets) {
+                return;
+            }
+            if (this.allPacketCounts != null ||
+                io.papermc.paper.configuration.GlobalConfiguration.get().packetLimiter.overrides.containsKey(packet.getClass())) {
+                long time = System.nanoTime();
+                synchronized (PACKET_LIMIT_LOCK) {
+                    if (this.allPacketCounts != null) {
+                        this.allPacketCounts.updateAndAdd(1, time);
+                        if (this.allPacketCounts.getRate() >= io.papermc.paper.configuration.GlobalConfiguration.get().packetLimiter.allPackets.maxPacketRate()) {
+                            this.killForPacketSpam();
+                            return;
+                        }
+                    }
+
+                    for (Class<?> check = packet.getClass(); check != Object.class; check = check.getSuperclass()) {
+                        io.papermc.paper.configuration.GlobalConfiguration.PacketLimiter.PacketLimit packetSpecificLimit =
+                            io.papermc.paper.configuration.GlobalConfiguration.get().packetLimiter.overrides.get(check);
+                        if (packetSpecificLimit == null || !packetSpecificLimit.isEnabled()) {
+                            continue;
+                        }
+                        io.papermc.paper.util.IntervalledCounter counter = this.packetSpecificLimits.computeIfAbsent((Class)check, (clazz) -> {
+                            return new io.papermc.paper.util.IntervalledCounter((long)(packetSpecificLimit.interval() * 1.0e9));
+                        });
+                        counter.updateAndAdd(1, time);
+                        if (counter.getRate() >= packetSpecificLimit.maxPacketRate()) {
+                            switch (packetSpecificLimit.action()) {
+                                case DROP:
+                                    return;
+                                case KICK:
+                                    this.killForPacketSpam();
+                                    return;
+                            }
+                        }
+                    }
+                }
+            }
+            // Paper end - packet limiter
+             try {
+                 Connection.genericsFtw(packet, this.packetListener);
+             } catch (RunningOnDifferentThreadException cancelledpackethandleexception) {
--- a/patches/server/0690-Don-t-read-neighbour-chunk-data-off-disk-when-conver.patch
+++ b/patches/server/0690-Don-t-read-neighbour-chunk-data-off-disk-when-conver.patch
@ -0,0 +1,21 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Spottedleaf <Spottedleaf@users.noreply.github.com>
+Date: Sun, 11 Apr 2021 02:58:48 -0700
+Subject: [PATCH] Don't read neighbour chunk data off disk when converting
+ chunks
+
+Lighting is purged on update anyways, so let's not add more
+into the conversion process
+
+diff --git a/src/main/java/net/minecraft/world/level/chunk/storage/ChunkStorage.java b/src/main/java/net/minecraft/world/level/chunk/storage/ChunkStorage.java
+index 2d93251abb1018381cf00dbbb120c8ea036710c6..6916255b55a31ddd5bc32ec47f0d5ebb417be738 100644
+--- a/src/main/java/net/minecraft/world/level/chunk/storage/ChunkStorage.java
+++ b/src/main/java/net/minecraft/world/level/chunk/storage/ChunkStorage.java
+@@ -51,6 +51,7 @@ public class ChunkStorage implements AutoCloseable {
+ 
+     // CraftBukkit start
+     private boolean check(ServerChunkCache cps, int x, int z) {
+        if (true) return true; // Paper - this isn't even needed anymore, light is purged updating to 1.14+, why are we holding up the conversion process reading chunk data off disk - return true, we need to set light populated to true so the converter recognizes the chunk as being "full"
+         ChunkPos pos = new ChunkPos(x, z);
+         if (cps != null) {
+             //com.google.common.base.Preconditions.checkState(org.bukkit.Bukkit.isPrimaryThread(), "primary thread"); // Paper - this function is now MT-Safe
--- a/patches/server/0691-Consolidate-flush-calls-for-entity-tracker-packets.patch
+++ b/patches/server/0691-Consolidate-flush-calls-for-entity-tracker-packets.patch
@ -0,0 +1,52 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Spottedleaf <Spottedleaf@users.noreply.github.com>
+Date: Sat, 4 Apr 2020 17:00:20 -0700
+Subject: [PATCH] Consolidate flush calls for entity tracker packets
+
+Most server packets seem to be sent from here, so try to avoid
+expensive flush calls from them.
+
+This change was motivated due to local testing:
+
+- My server spawn has 130 cows in it (for testing a prev. patch)
+- Try to let 200 players join spawn
+
+Without this change, I could only get 20 players on before they
+all started timing out due to the load put on the Netty I/O threads.
+
+With this change I could get all 200 on at 0ms ping.
+
+(one of the primary issues is that my CPU is kinda trash, and having
+4 extra threads at 100% is just too much for it).
+
+So in general this patch should reduce Netty I/O thread load.
+
+diff --git a/src/main/java/net/minecraft/server/level/ServerChunkCache.java b/src/main/java/net/minecraft/server/level/ServerChunkCache.java
+index 371f7e71610ddfbdb32dcd493f15d6ff9b90326e..42526088af333f818b02c80a3f8aa890ab78f6fb 100644
+--- a/src/main/java/net/minecraft/server/level/ServerChunkCache.java
+++ b/src/main/java/net/minecraft/server/level/ServerChunkCache.java
+@@ -807,7 +807,24 @@ public class ServerChunkCache extends ChunkSource {
+             this.level.timings.broadcastChunkUpdates.stopTiming(); // Paper - timing
+             gameprofilerfiller.pop();
+             // Paper end - use set of chunks requiring updates, rather than iterating every single one loaded
+            // Paper start - controlled flush for entity tracker packets
+            List<net.minecraft.network.Connection> disabledFlushes = new java.util.ArrayList<>(this.level.players.size());
+            for (ServerPlayer player : this.level.players) {
+                net.minecraft.server.network.ServerGamePacketListenerImpl connection = player.connection;
+                if (connection != null) {
+                    connection.connection.disableAutomaticFlush();
+                    disabledFlushes.add(connection.connection);
+                }
+            }
+            try { // Paper end - controlled flush for entity tracker packets
+             this.chunkMap.tick();
+            // Paper start - controlled flush for entity tracker packets
+            } finally {
+                for (net.minecraft.network.Connection networkManager : disabledFlushes) {
+                    networkManager.enableAutomaticFlush();
+                }
+            }
+            // Paper end - controlled flush for entity tracker packets
+         }
+     }
+ 
--- a/patches/server/0692-Don-t-lookup-fluid-state-when-raytracing.patch
+++ b/patches/server/0692-Don-t-lookup-fluid-state-when-raytracing.patch
@ -0,0 +1,20 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Spottedleaf <Spottedleaf@users.noreply.github.com>
+Date: Fri, 28 Aug 2020 12:33:47 -0700
+Subject: [PATCH] Don't lookup fluid state when raytracing
+
+Just use the iblockdata already retrieved, removes a getType call.
+
+diff --git a/src/main/java/net/minecraft/world/level/BlockGetter.java b/src/main/java/net/minecraft/world/level/BlockGetter.java
+index 89aadd30c1973cf45c5c05fd12462e04b0b05c97..04194b5d5560e3620131c2f5cdea84ff814a4c25 100644
+--- a/src/main/java/net/minecraft/world/level/BlockGetter.java
+++ b/src/main/java/net/minecraft/world/level/BlockGetter.java
+@@ -79,7 +79,7 @@ public interface BlockGetter extends LevelHeightAccessor {
+                 return BlockHitResult.miss(raytrace1.getTo(), Direction.getNearest(vec3d.x, vec3d.y, vec3d.z), BlockPos.containing(raytrace1.getTo()));
+             }
+             // Paper end
+-            FluidState fluid = this.getFluidState(blockposition);
+            FluidState fluid = iblockdata.getFluidState(); // Paper - don't need to go to world state again
+             Vec3 vec3d = raytrace1.getFrom();
+             Vec3 vec3d1 = raytrace1.getTo();
+             VoxelShape voxelshape = raytrace1.getBlockShape(iblockdata, this, blockposition);
--- a/patches/server/0693-Time-scoreboard-search.patch
+++ b/patches/server/0693-Time-scoreboard-search.patch
@ -0,0 +1,43 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Spottedleaf <Spottedleaf@users.noreply.github.com>
+Date: Tue, 21 Apr 2020 01:53:22 -0700
+Subject: [PATCH] Time scoreboard search
+
+Plugins leaking scoreboards will make this very expensive,
+let server owners debug it easily
+
+diff --git a/src/main/java/co/aikar/timings/MinecraftTimings.java b/src/main/java/co/aikar/timings/MinecraftTimings.java
+index 670dcfa32d003870091b75937f1603a5ac9fa7d1..112029cb275d45dced60807820f1bfe9f394496d 100644
+--- a/src/main/java/co/aikar/timings/MinecraftTimings.java
+++ b/src/main/java/co/aikar/timings/MinecraftTimings.java
+@@ -47,6 +47,7 @@ public final class MinecraftTimings {
+     public static final Timing antiXrayUpdateTimer = Timings.ofSafe("anti-xray - update");
+     public static final Timing antiXrayObfuscateTimer = Timings.ofSafe("anti-xray - obfuscate");
+     public static final Timing distanceManagerTick = Timings.ofSafe("Distance Manager Tick"); // Paper - add timings for distance manager
+    public static final Timing scoreboardScoreSearch = Timings.ofSafe("Scoreboard score search"); // Paper - add timings for scoreboard search
+ 
+     public static final Timing midTickChunkTasks = Timings.ofSafe("Mid Tick Chunk Tasks");
+ 
+diff --git a/src/main/java/org/bukkit/craftbukkit/scoreboard/CraftScoreboardManager.java b/src/main/java/org/bukkit/craftbukkit/scoreboard/CraftScoreboardManager.java
+index 39e19bea16419b9cbe53016084b8bbf014dcb056..138407c2d4b0bc55ddb9aac5d2aa3edadda090fb 100644
+--- a/src/main/java/org/bukkit/craftbukkit/scoreboard/CraftScoreboardManager.java
+++ b/src/main/java/org/bukkit/craftbukkit/scoreboard/CraftScoreboardManager.java
+@@ -113,9 +113,18 @@ public final class CraftScoreboardManager implements ScoreboardManager {
+ 
+     // CraftBukkit method
+     public void getScoreboardScores(ObjectiveCriteria criteria, String name, Consumer<Score> consumer) {
+        // Paper start - add timings for scoreboard search
+        // plugins leaking scoreboards will make this very expensive, let server owners debug it easily
+        co.aikar.timings.MinecraftTimings.scoreboardScoreSearch.startTimingIfSync();
+        try {
+        // Paper end - add timings for scoreboard search
+         for (CraftScoreboard scoreboard : this.scoreboards) {
+             Scoreboard board = scoreboard.board;
+             board.forAllObjectives(criteria, name, (score) -> consumer.accept(score));
+         }
+        } finally { // Paper start - add timings for scoreboard search
+            co.aikar.timings.MinecraftTimings.scoreboardScoreSearch.stopTimingIfSync();
+        }
+        // Paper end - add timings for scoreboard search
+     }
+ }
--- a/patches/server/0694-Send-full-pos-packets-for-hard-colliding-entities.patch
+++ b/patches/server/0694-Send-full-pos-packets-for-hard-colliding-entities.patch
@ -0,0 +1,23 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Spottedleaf <Spottedleaf@users.noreply.github.com>
+Date: Tue, 16 Feb 2021 00:16:56 -0800
+Subject: [PATCH] Send full pos packets for hard colliding entities
+
+Prevent collision problems due to desync (i.e boats)
+
+Configurable under
+`send-full-pos-for-hard-colliding-entities`
+
+diff --git a/src/main/java/net/minecraft/server/level/ServerEntity.java b/src/main/java/net/minecraft/server/level/ServerEntity.java
+index c41f06c82d2db758d8a91317ef21eb2f5eb76a49..09f6948a52721b27ccd7c761a7efd09bfd7a183c 100644
+--- a/src/main/java/net/minecraft/server/level/ServerEntity.java
+++ b/src/main/java/net/minecraft/server/level/ServerEntity.java
+@@ -180,7 +180,7 @@ public class ServerEntity {
+                     long i1 = this.positionCodec.encodeZ(vec3d);
+                     boolean flag6 = k < -32768L || k > 32767L || l < -32768L || l > 32767L || i1 < -32768L || i1 > 32767L;
+ 
+-                    if (!flag6 && this.teleportDelay <= 400 && !this.wasRiding && this.wasOnGround == this.entity.onGround()) {
+                    if (!flag6 && this.teleportDelay <= 400 && !this.wasRiding && this.wasOnGround == this.entity.onGround()&& !(io.papermc.paper.configuration.GlobalConfiguration.get().collisions.sendFullPosForHardCollidingEntities && this.entity.hardCollides())) { // Paper - send full pos for hard colliding entities to prevent collision problems due to desync
+                         if ((!flag2 || !flag3) && !(this.entity instanceof AbstractArrow)) {
+                             if (flag2) {
+                                 packet1 = new ClientboundMoveEntityPacket.Pos(this.entity.getId(), (short) ((int) k), (short) ((int) l), (short) ((int) i1), this.entity.onGround());
--- a/patches/server/0695-Do-not-run-raytrace-logic-for-AIR.patch
+++ b/patches/server/0695-Do-not-run-raytrace-logic-for-AIR.patch
@ -0,0 +1,22 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Spottedleaf <Spottedleaf@users.noreply.github.com>
+Date: Sun, 7 Mar 2021 13:15:04 -0800
+Subject: [PATCH] Do not run raytrace logic for AIR
+
+Saves approx. 5% for the raytrace call, as most (expensive)
+raytracing tends to go through air and returning early is an
+easy win. The remaining problems with this function
+are mostly with the block getting itself.
+
+diff --git a/src/main/java/net/minecraft/world/level/BlockGetter.java b/src/main/java/net/minecraft/world/level/BlockGetter.java
+index 04194b5d5560e3620131c2f5cdea84ff814a4c25..0e8746759752b692668886370181aa5db1fd0bb0 100644
+--- a/src/main/java/net/minecraft/world/level/BlockGetter.java
+++ b/src/main/java/net/minecraft/world/level/BlockGetter.java
+@@ -79,6 +79,7 @@ public interface BlockGetter extends LevelHeightAccessor {
+                 return BlockHitResult.miss(raytrace1.getTo(), Direction.getNearest(vec3d.x, vec3d.y, vec3d.z), BlockPos.containing(raytrace1.getTo()));
+             }
+             // Paper end
+            if (iblockdata.isAir()) return null; // Paper - optimise air cases
+             FluidState fluid = iblockdata.getFluidState(); // Paper - don't need to go to world state again
+             Vec3 vec3d = raytrace1.getFrom();
+             Vec3 vec3d1 = raytrace1.getTo();
--- a/patches/server/0696-Oprimise-map-impl-for-tracked-players.patch
+++ b/patches/server/0696-Oprimise-map-impl-for-tracked-players.patch
@ -0,0 +1,21 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Spottedleaf <Spottedleaf@users.noreply.github.com>
+Date: Fri, 19 Feb 2021 22:51:52 -0800
+Subject: [PATCH] Oprimise map impl for tracked players
+
+Reference2BooleanOpenHashMap is going to have
+better lookups than HashMap.
+
+diff --git a/src/main/java/net/minecraft/server/level/ChunkMap.java b/src/main/java/net/minecraft/server/level/ChunkMap.java
+index 03b802f9f6e31b1ab23af0ff7b235f64c72ec462..84dfa7efa4be86558c38ee9e6f70f87b5638173a 100644
+--- a/src/main/java/net/minecraft/server/level/ChunkMap.java
+++ b/src/main/java/net/minecraft/server/level/ChunkMap.java
+@@ -1343,7 +1343,7 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider
+         final Entity entity;
+         private final int range;
+         SectionPos lastSectionPos;
+-        public final Set<ServerPlayerConnection> seenBy = Sets.newIdentityHashSet();
+        public final Set<ServerPlayerConnection> seenBy = new ReferenceOpenHashSet<>(); // Paper - optimise map impl
+ 
+         public TrackedEntity(Entity entity, int i, int j, boolean flag) {
+             this.serverEntity = new ServerEntity(ChunkMap.this.level, entity, j, flag, this::broadcast, this.seenBy); // CraftBukkit
--- a/patches/server/0697-Optimise-BlockSoil-nearby-water-lookup.patch
+++ b/patches/server/0697-Optimise-BlockSoil-nearby-water-lookup.patch
@ -0,0 +1,51 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Spottedleaf <Spottedleaf@users.noreply.github.com>
+Date: Thu, 10 Jun 2021 14:36:00 -0700
+Subject: [PATCH] Optimise BlockSoil nearby water lookup
+
+Apparently the abstract block iteration was taking about
+75% of the method call.
+
+diff --git a/src/main/java/net/minecraft/world/level/block/FarmBlock.java b/src/main/java/net/minecraft/world/level/block/FarmBlock.java
+index b78a65ed6f632093eb34872e07d0835e766101e2..552d8c8f3f56bfccd25d11488ed7ec1644a92f47 100644
+--- a/src/main/java/net/minecraft/world/level/block/FarmBlock.java
+++ b/src/main/java/net/minecraft/world/level/block/FarmBlock.java
+@@ -142,19 +142,27 @@ public class FarmBlock extends Block {
+     }
+ 
+     private static boolean isNearWater(LevelReader world, BlockPos pos) {
+-        Iterator iterator = BlockPos.betweenClosed(pos.offset(-4, 0, -4), pos.offset(4, 1, 4)).iterator();
+-
+-        BlockPos blockposition1;
+-
+-        do {
+-            if (!iterator.hasNext()) {
+-                return false;
+        // Paper start - remove abstract block iteration
+        int xOff = pos.getX();
+        int yOff = pos.getY();
+        int zOff = pos.getZ();
+
+        for (int dz = -4; dz <= 4; ++dz) {
+            int z = dz + zOff;
+            for (int dx = -4; dx <= 4; ++dx) {
+                int x = xOff + dx;
+                for (int dy = 0; dy <= 1; ++dy) {
+                    int y = dy + yOff;
+                    net.minecraft.world.level.chunk.LevelChunk chunk = (net.minecraft.world.level.chunk.LevelChunk)world.getChunk(x >> 4, z >> 4);
+                    net.minecraft.world.level.material.FluidState fluid = chunk.getBlockStateFinal(x, y, z).getFluidState();
+                    if (fluid.is(FluidTags.WATER)) {
+                        return true;
+                    }
+                }
+             }
+        }
+ 
+-            blockposition1 = (BlockPos) iterator.next();
+-        } while (!world.getFluidState(blockposition1).is(FluidTags.WATER));
+-
+-        return true;
+        return false;
+     }
+ 
+     @Override
--- a/patches/server/0698-Optimise-random-block-ticking.patch
+++ b/patches/server/0698-Optimise-random-block-ticking.patch
@ -0,0 +1,454 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Spottedleaf <Spottedleaf@users.noreply.github.com>
+Date: Sun, 20 Jun 2021 16:19:26 -0700
+Subject: [PATCH] Optimise random block ticking
+
+Massive performance improvement for random block ticking.
+The performance increase comes from the fact that the vast
+majority of attempted block ticks (~95% in my testing) fail
+because the randomly selected block is not tickable.
+
+Now only tickable blocks are targeted, however this means that
+the maximum number of block ticks occurs per chunk. However,
+not all chunks are going to be targeted. The percent chance
+of a chunk being targeted is based on how many tickable blocks
+are in the chunk.
+This means that while block ticks are spread out less, the
+total number of blocks ticked per world tick remains the same.
+Therefore, the chance of a random tickable block being ticked
+remains the same.
+
+diff --git a/src/main/java/io/papermc/paper/util/math/ThreadUnsafeRandom.java b/src/main/java/io/papermc/paper/util/math/ThreadUnsafeRandom.java
+new file mode 100644
+index 0000000000000000000000000000000000000000..7d93652c1abbb6aee6eb7c26cf35d4d032ef7b69
+--- /dev/null
+++ b/src/main/java/io/papermc/paper/util/math/ThreadUnsafeRandom.java
+@@ -0,0 +1,65 @@
+package io.papermc.paper.util.math;
+
+import net.minecraft.util.RandomSource;
+import net.minecraft.world.level.levelgen.LegacyRandomSource;
+import net.minecraft.world.level.levelgen.PositionalRandomFactory;
+import org.checkerframework.checker.nullness.qual.NonNull;
+import org.checkerframework.framework.qual.DefaultQualifier;
+
+@DefaultQualifier(NonNull.class)
+public final class ThreadUnsafeRandom extends LegacyRandomSource {
+
+    // See javadoc and internal comments for java.util.Random where these values come from, how they are used, and the author for them.
+    private static final long multiplier = 0x5DEECE66DL;
+    private static final long addend = 0xBL;
+    private static final long mask = (1L << 48) - 1;
+
+    private static long initialScramble(long seed) {
+        return (seed ^ multiplier) & mask;
+    }
+
+    private long seed;
+
+    public ThreadUnsafeRandom(long seed) {
+        super(seed);
+    }
+
+    @Override
+    public RandomSource fork() {
+        return new ThreadUnsafeRandom(this.nextLong());
+    }
+
+    @Override
+    public PositionalRandomFactory forkPositional() {
+        throw new UnsupportedOperationException();
+    }
+
+    @Override
+    public void setSeed(long seed) {
+        // note: called by Random constructor
+        this.seed = initialScramble(seed);
+    }
+
+    @Override
+    public int next(int bits) {
+        // avoid the expensive CAS logic used by superclass
+        return (int) (((this.seed = this.seed * multiplier + addend) & mask) >>> (48 - bits));
+    }
+
+    // Taken from
+    // https://lemire.me/blog/2016/06/27/a-fast-alternative-to-the-modulo-reduction/
+    // https://github.com/lemire/Code-used-on-Daniel-Lemire-s-blog/blob/master/2016/06/25/fastrange.c
+    // Original license is public domain
+    public static int fastRandomBounded(final long randomInteger, final long limit) {
+        // randomInteger must be [0, pow(2, 32))
+        // limit must be [0, pow(2, 32))
+        return (int)((randomInteger * limit) >>> 32);
+    }
+
+    @Override
+    public int nextInt(int bound) {
+        // yes this breaks random's spec
+        // however there's nothing that uses this class that relies on it
+        return fastRandomBounded(this.next(32) & 0xFFFFFFFFL, bound);
+    }
+}
+diff --git a/src/main/java/net/minecraft/server/level/ServerLevel.java b/src/main/java/net/minecraft/server/level/ServerLevel.java
+index f8bcf1239c18a6334936cec483f2ae316429a894..b1cc896a3f5d7e59a15969308d78d2ef036b0cb1 100644
+--- a/src/main/java/net/minecraft/server/level/ServerLevel.java
+++ b/src/main/java/net/minecraft/server/level/ServerLevel.java
+@@ -764,6 +764,10 @@ public class ServerLevel extends Level implements WorldGenLevel {
+             entityplayer.stopSleepInBed(false, false);
+         });
+     }
+    // Paper start - optimise random block ticking
+    private final BlockPos.MutableBlockPos chunkTickMutablePosition = new BlockPos.MutableBlockPos();
+    private final io.papermc.paper.util.math.ThreadUnsafeRandom randomTickRandom = new io.papermc.paper.util.math.ThreadUnsafeRandom(this.random.nextLong());
+    // Paper end
+ 
+     public void tickChunk(LevelChunk chunk, int randomTickSpeed) {
+         ChunkPos chunkcoordintpair = chunk.getPos();
+@@ -773,10 +777,10 @@ public class ServerLevel extends Level implements WorldGenLevel {
+         ProfilerFiller gameprofilerfiller = this.getProfiler();
+ 
+         gameprofilerfiller.push("thunder");
+-        BlockPos blockposition;
+        final BlockPos.MutableBlockPos blockposition = this.chunkTickMutablePosition; // Paper - use mutable to reduce allocation rate, final to force compile fail on change
+ 
+         if (!this.paperConfig().environment.disableThunder && flag && this.isThundering() && this.spigotConfig.thunderChance > 0 && this.random.nextInt(this.spigotConfig.thunderChance) == 0) { // Spigot // Paper - disable thunder
+-            blockposition = this.findLightningTargetAround(this.getBlockRandomPos(j, 0, k, 15));
+            blockposition.set(this.findLightningTargetAround(this.getBlockRandomPos(j, 0, k, 15))); // Paper
+             if (this.isRainingAt(blockposition)) {
+                 DifficultyInstance difficultydamagescaler = this.getCurrentDifficultyAt(blockposition);
+                 boolean flag1 = this.getGameRules().getBoolean(GameRules.RULE_DOMOBSPAWNING) && this.random.nextDouble() < (double) difficultydamagescaler.getEffectiveDifficulty() * this.paperConfig().entities.spawning.skeletonHorseThunderSpawnChance.or(0.01D) && !this.getBlockState(blockposition.below()).is(Blocks.LIGHTNING_ROD); // Paper
+@@ -807,16 +811,25 @@ public class ServerLevel extends Level implements WorldGenLevel {
+         int i1;
+ 
+         if (!this.paperConfig().environment.disableIceAndSnow && this.random.nextInt(16) == 0) { // Paper - Disable ice and snow
+-            blockposition = this.getHeightmapPos(Heightmap.Types.MOTION_BLOCKING, this.getBlockRandomPos(j, 0, k, 15));
+-            BlockPos blockposition1 = blockposition.below();
+            // Paper start - optimise chunk ticking
+            this.getRandomBlockPosition(j, 0, k, 15, blockposition);
+            int normalY = chunk.getHeight(Heightmap.Types.MOTION_BLOCKING, blockposition.getX() & 15, blockposition.getZ() & 15) + 1;
+            int downY = normalY - 1;
+            blockposition.setY(normalY);
+            // Paper end
+             Biome biomebase = (Biome) this.getBiome(blockposition).value();
+ 
+-            if (biomebase.shouldFreeze(this, blockposition1)) {
+-                org.bukkit.craftbukkit.event.CraftEventFactory.handleBlockFormEvent(this, blockposition1, Blocks.ICE.defaultBlockState(), null); // CraftBukkit
+            // Paper start - optimise chunk ticking
+            blockposition.setY(downY);
+            if (biomebase.shouldFreeze(this, blockposition)) {
+                org.bukkit.craftbukkit.event.CraftEventFactory.handleBlockFormEvent(this, blockposition, Blocks.ICE.defaultBlockState(), null); // CraftBukkit
+                // Paper end
+             }
+ 
+             if (flag) {
+                 l = this.getGameRules().getInt(GameRules.RULE_SNOW_ACCUMULATION_HEIGHT);
+
+                blockposition.setY(normalY); // Paper
+                 if (l > 0 && biomebase.shouldSnow(this, blockposition)) {
+                     BlockState iblockdata = this.getBlockState(blockposition);
+ 
+@@ -832,51 +845,54 @@ public class ServerLevel extends Level implements WorldGenLevel {
+                         org.bukkit.craftbukkit.event.CraftEventFactory.handleBlockFormEvent(this, blockposition, Blocks.SNOW.defaultBlockState(), null); // CraftBukkit
+                     }
+                 }
+                blockposition.setY(downY); // Paper
+ 
+-                Biome.Precipitation biomebase_precipitation = biomebase.getPrecipitationAt(blockposition1);
+                Biome.Precipitation biomebase_precipitation = biomebase.getPrecipitationAt(blockposition); // Paper
+ 
+                 if (biomebase_precipitation != Biome.Precipitation.NONE) {
+-                    BlockState iblockdata2 = this.getBlockState(blockposition1);
+                    BlockState iblockdata2 = this.getBlockState(blockposition); // Paper
+ 
+-                    iblockdata2.getBlock().handlePrecipitation(iblockdata2, this, blockposition1, biomebase_precipitation);
+                    iblockdata2.getBlock().handlePrecipitation(iblockdata2, this, blockposition, biomebase_precipitation); // Paper
+                 }
+             }
+         }
+ 
+-        gameprofilerfiller.popPush("tickBlocks");
+        // Paper start - optimise random block ticking
+        gameprofilerfiller.popPush("randomTick");
+         timings.chunkTicksBlocks.startTiming(); // Paper
+         if (randomTickSpeed > 0) {
+-            LevelChunkSection[] achunksection = chunk.getSections();
+-
+-            for (int j1 = 0; j1 < achunksection.length; ++j1) {
+-                LevelChunkSection chunksection = achunksection[j1];
+-
+-                if (chunksection.isRandomlyTicking()) {
+-                    l = chunk.getSectionYFromSectionIndex(j1);
+-                    int k1 = SectionPos.sectionToBlockCoord(l);
+-
+-                    for (i1 = 0; i1 < randomTickSpeed; ++i1) {
+-                        BlockPos blockposition2 = this.getBlockRandomPos(j, k1, k, 15);
+-
+-                        gameprofilerfiller.push("randomTick");
+-                        BlockState iblockdata3 = chunksection.getBlockState(blockposition2.getX() - j, blockposition2.getY() - k1, blockposition2.getZ() - k);
+            LevelChunkSection[] sections = chunk.getSections();
+            int minSection = io.papermc.paper.util.WorldUtil.getMinSection(this);
+            for (int sectionIndex = 0; sectionIndex < sections.length; ++sectionIndex) {
+                LevelChunkSection section = sections[sectionIndex];
+                if (section == null || section.tickingList.size() == 0) {
+                    continue;
+                }
+ 
+-                        if (iblockdata3.isRandomlyTicking()) {
+-                            iblockdata3.randomTick(this, blockposition2, this.random);
+-                        }
+                int yPos = (sectionIndex + minSection) << 4;
+                for (int a = 0; a < randomTickSpeed; ++a) {
+                    int tickingBlocks = section.tickingList.size();
+                    int index = this.randomTickRandom.nextInt(16 * 16 * 16);
+                    if (index >= tickingBlocks) {
+                        continue;
+                    }
+ 
+-                        FluidState fluid = iblockdata3.getFluidState();
+                    long raw = section.tickingList.getRaw(index);
+                    int location = com.destroystokyo.paper.util.maplist.IBlockDataList.getLocationFromRaw(raw);
+                    int randomX = location & 15;
+                    int randomY = ((location >>> (4 + 4)) & 255) | yPos;
+                    int randomZ = (location >>> 4) & 15;
+ 
+-                        if (fluid.isRandomlyTicking()) {
+-                            fluid.randomTick(this, blockposition2, this.random);
+-                        }
+                    BlockPos blockposition2 = blockposition.set(j + randomX, randomY, k + randomZ);
+                    BlockState iblockdata = com.destroystokyo.paper.util.maplist.IBlockDataList.getBlockDataFromRaw(raw);
+ 
+-                        gameprofilerfiller.pop();
+-                    }
+                    iblockdata.randomTick(this, blockposition2, this.randomTickRandom);
+                    // We drop the fluid tick since LAVA is ALREADY TICKED by the above method (See LiquidBlock).
+                    // TODO CHECK ON UPDATE (ping the Canadian)
+                 }
+             }
+         }
+-
+        // Paper end - optimise random block ticking
+         timings.chunkTicksBlocks.stopTiming(); // Paper
+         gameprofilerfiller.pop();
+     }
+diff --git a/src/main/java/net/minecraft/util/BitStorage.java b/src/main/java/net/minecraft/util/BitStorage.java
+index 68648c5a5e3ff079f832092af0f2f801c42d1ede..8bafd5fd7499ba4a04bf706cfd1e156073716e21 100644
+--- a/src/main/java/net/minecraft/util/BitStorage.java
+++ b/src/main/java/net/minecraft/util/BitStorage.java
+@@ -20,4 +20,15 @@ public interface BitStorage {
+     void unpack(int[] out);
+ 
+     BitStorage copy();
+
+    // Paper start
+    void forEach(DataBitConsumer consumer);
+
+    @FunctionalInterface
+    interface DataBitConsumer {
+
+        void accept(int location, int data);
+
+    }
+    // Paper end
+ }
+diff --git a/src/main/java/net/minecraft/util/SimpleBitStorage.java b/src/main/java/net/minecraft/util/SimpleBitStorage.java
+index 2b3fd62dca2d1475075b5dcde56cea85b749cb44..e4d0d7e8fc58b8f9f614d74a141e452166e0364c 100644
+--- a/src/main/java/net/minecraft/util/SimpleBitStorage.java
+++ b/src/main/java/net/minecraft/util/SimpleBitStorage.java
+@@ -124,6 +124,28 @@ public class SimpleBitStorage implements BitStorage {
+         return this.bits;
+     }
+ 
+    // Paper start
+    @Override
+    public final void forEach(DataBitConsumer consumer) {
+        int i = 0;
+        long[] along = this.data;
+        int j = along.length;
+
+        for (int k = 0; k < j; ++k) {
+            long l = along[k];
+
+            for (int i1 = 0; i1 < this.valuesPerLong; ++i1) {
+                consumer.accept(i, (int) (l & this.mask));
+                l >>= this.bits;
+                ++i;
+                if (i >= this.size) {
+                    return;
+                }
+            }
+        }
+    }
+    // Paper end
+
+     @Override
+     public void getAll(IntConsumer action) {
+         int i = 0;
+diff --git a/src/main/java/net/minecraft/util/ZeroBitStorage.java b/src/main/java/net/minecraft/util/ZeroBitStorage.java
+index f0f764f36fb92c64ab2dc8a0a50c3f48321c3c9a..311625277a26c9c187025a1036978229241b965f 100644
+--- a/src/main/java/net/minecraft/util/ZeroBitStorage.java
+++ b/src/main/java/net/minecraft/util/ZeroBitStorage.java
+@@ -46,6 +46,15 @@ public class ZeroBitStorage implements BitStorage {
+         return 0;
+     }
+ 
+    // Paper start
+    @Override
+    public void forEach(DataBitConsumer consumer) {
+        for(int i = 0; i < this.size; ++i) {
+            consumer.accept(i, 0);
+        }
+    }
+    // Paper end
+
+     @Override
+     public void getAll(IntConsumer action) {
+         for(int i = 0; i < this.size; ++i) {
+diff --git a/src/main/java/net/minecraft/world/entity/animal/Turtle.java b/src/main/java/net/minecraft/world/entity/animal/Turtle.java
+index 99fc97051c61ac8d08afdc0ea4845e96705e243b..c48bf4ca76f70d878378fc43c8270de5c3332824 100644
+--- a/src/main/java/net/minecraft/world/entity/animal/Turtle.java
+++ b/src/main/java/net/minecraft/world/entity/animal/Turtle.java
+@@ -84,7 +84,7 @@ public class Turtle extends Animal {
+     }
+ 
+     public void setHomePos(BlockPos pos) {
+-        this.entityData.set(Turtle.HOME_POS, pos);
+        this.entityData.set(Turtle.HOME_POS, pos.immutable()); // Paper - called with mutablepos...
+     }
+ 
+     public BlockPos getHomePos() {
+diff --git a/src/main/java/net/minecraft/world/level/Level.java b/src/main/java/net/minecraft/world/level/Level.java
+index 2ed14a26084150fc67b031a7ab6b76fd8f0b075a..4847b6358e823bd53ecfaf7d82ed9e36d45b1233 100644
+--- a/src/main/java/net/minecraft/world/level/Level.java
+++ b/src/main/java/net/minecraft/world/level/Level.java
+@@ -1293,10 +1293,18 @@ public abstract class Level implements LevelAccessor, AutoCloseable {
+     public abstract RecipeManager getRecipeManager();
+ 
+     public BlockPos getBlockRandomPos(int x, int y, int z, int l) {
+        // Paper start - allow use of mutable pos
+        BlockPos.MutableBlockPos ret = new BlockPos.MutableBlockPos();
+        this.getRandomBlockPosition(x, y, z, l, ret);
+        return ret.immutable();
+    }
+    public final BlockPos.MutableBlockPos getRandomBlockPosition(int x, int y, int z, int l, BlockPos.MutableBlockPos out) {
+        // Paper end
+         this.randValue = this.randValue * 3 + 1013904223;
+         int i1 = this.randValue >> 2;
+ 
+-        return new BlockPos(x + (i1 & 15), y + (i1 >> 16 & l), z + (i1 >> 8 & 15));
+        out.set(x + (i1 & 15), y + (i1 >> 16 & l), z + (i1 >> 8 & 15)); // Paper - change to setValues call
+        return out; // Paper
+     }
+ 
+     public boolean noSave() {
+diff --git a/src/main/java/net/minecraft/world/level/chunk/LevelChunkSection.java b/src/main/java/net/minecraft/world/level/chunk/LevelChunkSection.java
+index 789664d53584c7d958572c63db22f904fb411a58..5d53b09e19b664fad337ea5098bf9cf41a7168f8 100644
+--- a/src/main/java/net/minecraft/world/level/chunk/LevelChunkSection.java
+++ b/src/main/java/net/minecraft/world/level/chunk/LevelChunkSection.java
+@@ -25,6 +25,7 @@ public class LevelChunkSection {
+     public final PalettedContainer<BlockState> states;
+     // CraftBukkit start - read/write
+     private PalettedContainer<Holder<Biome>> biomes;
+    public final com.destroystokyo.paper.util.maplist.IBlockDataList tickingList = new com.destroystokyo.paper.util.maplist.IBlockDataList(); // Paper
+ 
+     public LevelChunkSection(PalettedContainer<BlockState> datapaletteblock, PalettedContainer<Holder<Biome>> palettedcontainerro) {
+         // CraftBukkit end
+@@ -74,6 +75,9 @@ public class LevelChunkSection {
+             --this.nonEmptyBlockCount;
+             if (iblockdata1.isRandomlyTicking()) {
+                 --this.tickingBlockCount;
+                // Paper start
+                this.tickingList.remove(x, y, z);
+                // Paper end
+             }
+         }
+ 
+@@ -85,6 +89,9 @@ public class LevelChunkSection {
+             ++this.nonEmptyBlockCount;
+             if (state.isRandomlyTicking()) {
+                 ++this.tickingBlockCount;
+                // Paper start
+                this.tickingList.add(x, y, z, state);
+                // Paper end
+             }
+         }
+ 
+@@ -112,40 +119,31 @@ public class LevelChunkSection {
+     }
+ 
+     public void recalcBlockCounts() {
+-        class a implements PalettedContainer.CountConsumer<BlockState> {
+-
+-            public int nonEmptyBlockCount;
+-            public int tickingBlockCount;
+-            public int tickingFluidCount;
+-
+-            a() {}
+-
+-            public void accept(BlockState iblockdata, int i) {
+-                FluidState fluid = iblockdata.getFluidState();
+-
+-                if (!iblockdata.isAir()) {
+-                    this.nonEmptyBlockCount += i;
+-                    if (iblockdata.isRandomlyTicking()) {
+-                        this.tickingBlockCount += i;
+-                    }
+        // Paper start - unfuck this
+        this.tickingList.clear();
+        this.nonEmptyBlockCount = 0;
+        this.tickingBlockCount = 0;
+        this.tickingFluidCount = 0;
+        this.states.forEachLocation((BlockState iblockdata, int i) -> {
+            FluidState fluid = iblockdata.getFluidState();
+
+            if (!iblockdata.isAir()) {
+                this.nonEmptyBlockCount = (short) (this.nonEmptyBlockCount + 1);
+                if (iblockdata.isRandomlyTicking()) {
+                    this.tickingBlockCount = (short)(this.tickingBlockCount + 1);
+                    this.tickingList.add(i, iblockdata);
+                 }
+            }
+ 
+-                if (!fluid.isEmpty()) {
+-                    this.nonEmptyBlockCount += i;
+-                    if (fluid.isRandomlyTicking()) {
+-                        this.tickingFluidCount += i;
+-                    }
+            if (!fluid.isEmpty()) {
+                this.nonEmptyBlockCount = (short) (this.nonEmptyBlockCount + 1);
+                if (fluid.isRandomlyTicking()) {
+                    this.tickingFluidCount = (short) (this.tickingFluidCount + 1);
+                 }
+-
+             }
+-        }
+-
+-        a a0 = new a();
+ 
+-        this.states.count(a0);
+-        this.nonEmptyBlockCount = (short) a0.nonEmptyBlockCount;
+-        this.tickingBlockCount = (short) a0.tickingBlockCount;
+-        this.tickingFluidCount = (short) a0.tickingFluidCount;
+        });
+        // Paper end
+     }
+ 
+     public PalettedContainer<BlockState> getStates() {
+diff --git a/src/main/java/net/minecraft/world/level/chunk/PalettedContainer.java b/src/main/java/net/minecraft/world/level/chunk/PalettedContainer.java
+index a8dc502fffdce89c44ec16cb158b04c30fb1a9cf..f4658eea741bed1c80f8aca7dc365b897b698cd4 100644
+--- a/src/main/java/net/minecraft/world/level/chunk/PalettedContainer.java
+++ b/src/main/java/net/minecraft/world/level/chunk/PalettedContainer.java
+@@ -315,6 +315,14 @@ public class PalettedContainer<T> implements PaletteResize<T>, PalettedContainer
+         }
+     }
+ 
+    // Paper start
+    public void forEachLocation(PalettedContainer.CountConsumer<T> consumer) {
+        this.data.storage.forEach((int location, int data) -> {
+            consumer.accept(this.data.palette.valueFor(data), location);
+        });
+    }
+    // Paper end
+
+     @FunctionalInterface
+     public interface CountConsumer<T> {
+         void accept(T object, int count);
--- a/patches/server/0699-Optimise-nearby-player-lookups.patch
+++ b/patches/server/0699-Optimise-nearby-player-lookups.patch
@ -0,0 +1,426 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Spottedleaf <Spottedleaf@users.noreply.github.com>
+Date: Thu, 27 Aug 2020 16:22:52 -0700
+Subject: [PATCH] Optimise nearby player lookups
+
+Use a distance map to map out close players.
+Note that it's important that we cache the distance map value per chunk
+since the penalty of a map lookup could outweigh the benefits of
+searching less players (as it basically did in the outside range patch).
+
+diff --git a/src/main/java/net/minecraft/server/level/ChunkHolder.java b/src/main/java/net/minecraft/server/level/ChunkHolder.java
+index 3914fae62d3e0c0a9aeb8fd2bd48e76889c25a3a..25f983442b844465bde333131972d15df8e14415 100644
+--- a/src/main/java/net/minecraft/server/level/ChunkHolder.java
+++ b/src/main/java/net/minecraft/server/level/ChunkHolder.java
+@@ -96,6 +96,12 @@ public class ChunkHolder {
+             this.chunkMap.needsChangeBroadcasting.add(this);
+         }
+         // Paper end - optimise chunk tick iteration
+        // Paper start - optimise checkDespawn
+        LevelChunk chunk = this.getFullChunkNowUnchecked();
+        if (chunk != null) {
+            chunk.updateGeneralAreaCache();
+        }
+        // Paper end - optimise checkDespawn
+     }
+ 
+     public void onChunkRemove() {
+@@ -108,6 +114,12 @@ public class ChunkHolder {
+             this.chunkMap.needsChangeBroadcasting.remove(this);
+         }
+         // Paper end - optimise chunk tick iteration
+        // Paper start - optimise checkDespawn
+        LevelChunk chunk = this.getFullChunkNowUnchecked();
+        if (chunk != null) {
+            chunk.removeGeneralAreaCache();
+        }
+        // Paper end - optimise checkDespawn
+     }
+     // Paper end
+ 
+diff --git a/src/main/java/net/minecraft/server/level/ChunkMap.java b/src/main/java/net/minecraft/server/level/ChunkMap.java
+index 84dfa7efa4be86558c38ee9e6f70f87b5638173a..c2dec99102fa4c64c3c874f725cdc65845cd98d2 100644
+--- a/src/main/java/net/minecraft/server/level/ChunkMap.java
+++ b/src/main/java/net/minecraft/server/level/ChunkMap.java
+@@ -157,6 +157,12 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider
+     public final ReferenceOpenHashSet<ChunkHolder> needsChangeBroadcasting = new ReferenceOpenHashSet<>();
+ 
+     // Paper - rewrite chunk system
+    // Paper start - optimise checkDespawn
+    public static final int GENERAL_AREA_MAP_SQUARE_RADIUS = 40;
+    public static final double GENERAL_AREA_MAP_ACCEPTABLE_SEARCH_RANGE = 16.0 * (GENERAL_AREA_MAP_SQUARE_RADIUS - 1);
+    public static final double GENERAL_AREA_MAP_ACCEPTABLE_SEARCH_RANGE_SQUARED = GENERAL_AREA_MAP_ACCEPTABLE_SEARCH_RANGE * GENERAL_AREA_MAP_ACCEPTABLE_SEARCH_RANGE;
+    public final com.destroystokyo.paper.util.misc.PlayerAreaMap playerGeneralAreaMap;
+    // Paper end - optimise checkDespawn
+ 
+     // Paper start - distance maps
+     private final com.destroystokyo.paper.util.misc.PooledLinkedHashSets<ServerPlayer> pooledLinkedPlayerHashSets = new com.destroystokyo.paper.util.misc.PooledLinkedHashSets<>();
+@@ -184,6 +190,7 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider
+             this.playerMobDistanceMap.add(player, chunkX, chunkZ, io.papermc.paper.chunk.system.ChunkSystem.getTickViewDistance(player));
+         }
+         // Paper end - per player mob spawning
+        this.playerGeneralAreaMap.add(player, chunkX, chunkZ, GENERAL_AREA_MAP_SQUARE_RADIUS); // Paper - optimise checkDespawn
+     }
+ 
+     void removePlayerFromDistanceMaps(ServerPlayer player) {
+@@ -193,6 +200,7 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider
+         this.playerMobSpawnMap.remove(player);
+         this.playerChunkTickRangeMap.remove(player);
+         // Paper end - optimise ChunkMap#anyPlayerCloseEnoughForSpawning
+        this.playerGeneralAreaMap.remove(player); // Paper - optimise checkDespawns
+         // Paper start - per player mob spawning
+         if (this.playerMobDistanceMap != null) {
+             this.playerMobDistanceMap.remove(player);
+@@ -211,6 +219,7 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider
+             this.playerMobDistanceMap.update(player, chunkX, chunkZ, io.papermc.paper.chunk.system.ChunkSystem.getTickViewDistance(player));
+         }
+         // Paper end - per player mob spawning
+        this.playerGeneralAreaMap.update(player, chunkX, chunkZ, GENERAL_AREA_MAP_SQUARE_RADIUS); // Paper - optimise checkDespawn
+     }
+     // Paper end
+     // Paper start
+@@ -329,6 +338,23 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider
+                 }
+             });
+         // Paper end - optimise ChunkMap#anyPlayerCloseEnoughForSpawning
+        // Paper start - optimise checkDespawn
+        this.playerGeneralAreaMap = new com.destroystokyo.paper.util.misc.PlayerAreaMap(this.pooledLinkedPlayerHashSets,
+            (ServerPlayer player, int rangeX, int rangeZ, int currPosX, int currPosZ, int prevPosX, int prevPosZ,
+             com.destroystokyo.paper.util.misc.PooledLinkedHashSets.PooledObjectLinkedOpenHashSet<ServerPlayer> newState) -> {
+                LevelChunk chunk = ChunkMap.this.level.getChunkSource().getChunkAtIfCachedImmediately(rangeX, rangeZ);
+                if (chunk != null) {
+                    chunk.updateGeneralAreaCache(newState);
+                }
+            },
+            (ServerPlayer player, int rangeX, int rangeZ, int currPosX, int currPosZ, int prevPosX, int prevPosZ,
+             com.destroystokyo.paper.util.misc.PooledLinkedHashSets.PooledObjectLinkedOpenHashSet<ServerPlayer> newState) -> {
+                LevelChunk chunk = ChunkMap.this.level.getChunkSource().getChunkAtIfCachedImmediately(rangeX, rangeZ);
+                if (chunk != null) {
+                    chunk.updateGeneralAreaCache(newState);
+                }
+            });
+        // Paper end - optimise checkDespawn
+     }
+ 
+     protected ChunkGenerator generator() {
+diff --git a/src/main/java/net/minecraft/server/level/ServerLevel.java b/src/main/java/net/minecraft/server/level/ServerLevel.java
+index b1cc896a3f5d7e59a15969308d78d2ef036b0cb1..4bec4a6955d6c38c8bd8fb9a10d153209d693a01 100644
+--- a/src/main/java/net/minecraft/server/level/ServerLevel.java
+++ b/src/main/java/net/minecraft/server/level/ServerLevel.java
+@@ -481,6 +481,84 @@ public class ServerLevel extends Level implements WorldGenLevel {
+     }
+     // Paper end
+ 
+    // Paper start - optimise checkDespawn
+    public final List<ServerPlayer> playersAffectingSpawning = new java.util.ArrayList<>();
+    // Paper end - optimise checkDespawn
+    // Paper start - optimise get nearest players for entity AI
+    @Override
+    public final ServerPlayer getNearestPlayer(net.minecraft.world.entity.ai.targeting.TargetingConditions condition, @Nullable LivingEntity source,
+                                               double centerX, double centerY, double centerZ) {
+        com.destroystokyo.paper.util.misc.PooledLinkedHashSets.PooledObjectLinkedOpenHashSet<ServerPlayer> nearby;
+        nearby = this.getChunkSource().chunkMap.playerGeneralAreaMap.getObjectsInRange(Mth.floor(centerX) >> 4, Mth.floor(centerZ) >> 4);
+
+        if (nearby == null) {
+            return null;
+        }
+
+        Object[] backingSet = nearby.getBackingSet();
+
+        double closestDistanceSquared = Double.MAX_VALUE;
+        ServerPlayer closest = null;
+
+        for (int i = 0, len = backingSet.length; i < len; ++i) {
+            Object _player = backingSet[i];
+            if (!(_player instanceof ServerPlayer)) {
+                continue;
+            }
+            ServerPlayer player = (ServerPlayer)_player;
+
+            double distanceSquared = player.distanceToSqr(centerX, centerY, centerZ);
+            if (distanceSquared < closestDistanceSquared && condition.test(source, player)) {
+                closest = player;
+                closestDistanceSquared = distanceSquared;
+            }
+        }
+
+        return closest;
+    }
+
+    @Override
+    public Player getNearestPlayer(net.minecraft.world.entity.ai.targeting.TargetingConditions pathfindertargetcondition, LivingEntity entityliving) {
+        return this.getNearestPlayer(pathfindertargetcondition, entityliving, entityliving.getX(), entityliving.getY(), entityliving.getZ());
+    }
+
+    @Override
+    public Player getNearestPlayer(net.minecraft.world.entity.ai.targeting.TargetingConditions pathfindertargetcondition,
+                                   double d0, double d1, double d2) {
+        return this.getNearestPlayer(pathfindertargetcondition, null, d0, d1, d2);
+    }
+
+    @Override
+    public List<Player> getNearbyPlayers(net.minecraft.world.entity.ai.targeting.TargetingConditions condition, LivingEntity source, AABB axisalignedbb) {
+        com.destroystokyo.paper.util.misc.PooledLinkedHashSets.PooledObjectLinkedOpenHashSet<ServerPlayer> nearby;
+        double centerX = (axisalignedbb.maxX + axisalignedbb.minX) * 0.5;
+        double centerZ = (axisalignedbb.maxZ + axisalignedbb.minZ) * 0.5;
+        nearby = this.getChunkSource().chunkMap.playerGeneralAreaMap.getObjectsInRange(Mth.floor(centerX) >> 4, Mth.floor(centerZ) >> 4);
+
+        List<Player> ret = new java.util.ArrayList<>();
+
+        if (nearby == null) {
+            return ret;
+        }
+
+        Object[] backingSet = nearby.getBackingSet();
+
+        for (int i = 0, len = backingSet.length; i < len; ++i) {
+            Object _player = backingSet[i];
+            if (!(_player instanceof ServerPlayer)) {
+                continue;
+            }
+            ServerPlayer player = (ServerPlayer)_player;
+
+            if (axisalignedbb.contains(player.getX(), player.getY(), player.getZ()) && condition.test(source, player)) {
+                ret.add(player);
+            }
+        }
+
+        return ret;
+    }
+    // Paper end - optimise get nearest players for entity AI
+
+     // Add env and gen to constructor, IWorldDataServer -> WorldDataServer
+     public ServerLevel(MinecraftServer minecraftserver, Executor executor, LevelStorageSource.LevelStorageAccess convertable_conversionsession, PrimaryLevelData iworlddataserver, ResourceKey<Level> resourcekey, LevelStem worlddimension, ChunkProgressListener worldloadlistener, boolean flag, long i, List<CustomSpawner> list, boolean flag1, @Nullable RandomSequences randomsequences, org.bukkit.World.Environment env, org.bukkit.generator.ChunkGenerator gen, org.bukkit.generator.BiomeProvider biomeProvider) {
+         // IRegistryCustom.Dimension iregistrycustom_dimension = minecraftserver.registryAccess(); // CraftBukkit - decompile error
+@@ -606,6 +684,14 @@ public class ServerLevel extends Level implements WorldGenLevel {
+     }
+ 
+     public void tick(BooleanSupplier shouldKeepTicking) {
+        // Paper start - optimise checkDespawn
+        this.playersAffectingSpawning.clear();
+        for (ServerPlayer player : this.players) {
+            if (net.minecraft.world.entity.EntitySelector.PLAYER_AFFECTS_SPAWNING.test(player)) {
+                this.playersAffectingSpawning.add(player);
+            }
+        }
+        // Paper end - optimise checkDespawn
+         ProfilerFiller gameprofilerfiller = this.getProfiler();
+ 
+         this.handlingTick = true;
+diff --git a/src/main/java/net/minecraft/world/entity/Mob.java b/src/main/java/net/minecraft/world/entity/Mob.java
+index b6e48531a2a1316eef786e0476574eb1c3c29a9e..e2a25c29ec74147b3e66aa0b3deb85a8f6ee53a5 100644
+--- a/src/main/java/net/minecraft/world/entity/Mob.java
+++ b/src/main/java/net/minecraft/world/entity/Mob.java
+@@ -858,7 +858,12 @@ public abstract class Mob extends LivingEntity implements Targeting {
+         if (this.level().getDifficulty() == Difficulty.PEACEFUL && this.shouldDespawnInPeaceful()) {
+             this.discard();
+         } else if (!this.isPersistenceRequired() && !this.requiresCustomPersistence()) {
+-            Player entityhuman = this.level().findNearbyPlayer(this, -1.0D, EntitySelector.PLAYER_AFFECTS_SPAWNING); // Paper
+            // Paper start - optimise checkDespawn
+            Player entityhuman = this.level().findNearbyPlayer(this, level().paperConfig().entities.spawning.despawnRanges.get(this.getType().getCategory()).hard() + 1, EntitySelector.PLAYER_AFFECTS_SPAWNING); // Paper
+            if (entityhuman == null) {
+                entityhuman = ((ServerLevel)this.level()).playersAffectingSpawning.isEmpty() ? null : ((ServerLevel)this.level()).playersAffectingSpawning.get(0);
+            }
+            // Paper end - optimise checkDespawn
+ 
+             if (entityhuman != null) {
+                 double d0 = entityhuman.distanceToSqr((Entity) this);
+diff --git a/src/main/java/net/minecraft/world/level/Level.java b/src/main/java/net/minecraft/world/level/Level.java
+index 4847b6358e823bd53ecfaf7d82ed9e36d45b1233..799d31874be8a7498e71e7e01f84aa81a7f1eed4 100644
+--- a/src/main/java/net/minecraft/world/level/Level.java
+++ b/src/main/java/net/minecraft/world/level/Level.java
+@@ -206,6 +206,69 @@ public abstract class Level implements LevelAccessor, AutoCloseable {
+         return this.getChunkIfLoaded(chunkX, chunkZ) != null;
+     }
+     // Paper end
+    // Paper start - optimise checkDespawn
+    public final List<net.minecraft.server.level.ServerPlayer> getNearbyPlayers(@Nullable Entity source, double sourceX, double sourceY,
+                                                                                double sourceZ, double maxRange, @Nullable Predicate<Entity> predicate) {
+        LevelChunk chunk;
+        if (maxRange < 0.0 || maxRange >= net.minecraft.server.level.ChunkMap.GENERAL_AREA_MAP_ACCEPTABLE_SEARCH_RANGE ||
+            (chunk = (LevelChunk)this.getChunkIfLoadedImmediately(Mth.floor(sourceX) >> 4, Mth.floor(sourceZ) >> 4)) == null) {
+            return this.getNearbyPlayersSlow(source, sourceX, sourceY, sourceZ, maxRange, predicate);
+        }
+
+        List<net.minecraft.server.level.ServerPlayer> ret = new java.util.ArrayList<>();
+        chunk.getNearestPlayers(sourceX, sourceY, sourceZ, predicate, maxRange, ret);
+        return ret;
+    }
+
+    private List<net.minecraft.server.level.ServerPlayer> getNearbyPlayersSlow(@Nullable Entity source, double sourceX, double sourceY,
+                                                                               double sourceZ, double maxRange, @Nullable Predicate<Entity> predicate) {
+        List<net.minecraft.server.level.ServerPlayer> ret = new java.util.ArrayList<>();
+        double maxRangeSquared = maxRange * maxRange;
+
+        for (net.minecraft.server.level.ServerPlayer player : (List<net.minecraft.server.level.ServerPlayer>)this.players()) {
+            if ((maxRange < 0.0 || player.distanceToSqr(sourceX, sourceY, sourceZ) < maxRangeSquared)) {
+                if (predicate == null || predicate.test(player)) {
+                    ret.add(player);
+                }
+            }
+        }
+
+        return ret;
+    }
+
+    private net.minecraft.server.level.ServerPlayer getNearestPlayerSlow(@Nullable Entity source, double sourceX, double sourceY,
+                                                                         double sourceZ, double maxRange, @Nullable Predicate<Entity> predicate) {
+        net.minecraft.server.level.ServerPlayer closest = null;
+        double closestRangeSquared = maxRange < 0.0 ? Double.MAX_VALUE : maxRange * maxRange;
+
+        for (net.minecraft.server.level.ServerPlayer player : (List<net.minecraft.server.level.ServerPlayer>)this.players()) {
+            double distanceSquared = player.distanceToSqr(sourceX, sourceY, sourceZ);
+            if (distanceSquared < closestRangeSquared && (predicate == null || predicate.test(player))) {
+                closest = player;
+                closestRangeSquared = distanceSquared;
+            }
+        }
+
+        return closest;
+    }
+
+
+    public final net.minecraft.server.level.ServerPlayer getNearestPlayer(@Nullable Entity source, double sourceX, double sourceY,
+                                                                          double sourceZ, double maxRange, @Nullable Predicate<Entity> predicate) {
+        LevelChunk chunk;
+        if (maxRange < 0.0 || maxRange >= net.minecraft.server.level.ChunkMap.GENERAL_AREA_MAP_ACCEPTABLE_SEARCH_RANGE ||
+            (chunk = (LevelChunk)this.getChunkIfLoadedImmediately(Mth.floor(sourceX) >> 4, Mth.floor(sourceZ) >> 4)) == null) {
+            return this.getNearestPlayerSlow(source, sourceX, sourceY, sourceZ, maxRange, predicate);
+        }
+
+        return chunk.findNearestPlayer(sourceX, sourceY, sourceZ, maxRange, predicate);
+    }
+
+    @Override
+    public @Nullable Player getNearestPlayer(double d0, double d1, double d2, double d3, @Nullable Predicate<Entity> predicate) {
+        return this.getNearestPlayer(null, d0, d1, d2, d3, predicate);
+    }
+    // Paper end - optimise checkDespawn
+ 
+     public abstract ResourceKey<LevelStem> getTypeKey();
+ 
+diff --git a/src/main/java/net/minecraft/world/level/NaturalSpawner.java b/src/main/java/net/minecraft/world/level/NaturalSpawner.java
+index d4f99f4592a86e2d8344bc2c44711fef1543acdf..089dd93d4cd4c1f72e63c4944b3b82c1e2ba732d 100644
+--- a/src/main/java/net/minecraft/world/level/NaturalSpawner.java
+++ b/src/main/java/net/minecraft/world/level/NaturalSpawner.java
+@@ -260,7 +260,7 @@ public final class NaturalSpawner {
+                             blockposition_mutableblockposition.set(l, i, i1);
+                             double d0 = (double) l + 0.5D;
+                             double d1 = (double) i1 + 0.5D;
+-                            Player entityhuman = world.getNearestPlayer(d0, (double) i, d1, -1.0D, false);
+                            Player entityhuman = (chunk instanceof LevelChunk) ? ((LevelChunk)chunk).findNearestPlayer(d0, i, d1, 576.0D, net.minecraft.world.entity.EntitySelector.NO_SPECTATORS) : world.getNearestPlayer(d0, (double) i, d1, -1.0D, false); // Paper - use chunk's player cache to optimize search in range
+ 
+                             if (entityhuman != null) {
+                                 double d2 = entityhuman.distanceToSqr(d0, (double) i, d1);
+@@ -334,7 +334,7 @@ public final class NaturalSpawner {
+     }
+ 
+     private static boolean isRightDistanceToPlayerAndSpawnPoint(ServerLevel world, ChunkAccess chunk, BlockPos.MutableBlockPos pos, double squaredDistance) {
+-        return squaredDistance <= 576.0D ? false : (world.getSharedSpawnPos().closerToCenterThan(new Vec3((double) pos.getX() + 0.5D, (double) pos.getY(), (double) pos.getZ() + 0.5D), 24.0D) ? false : Objects.equals(new ChunkPos(pos), chunk.getPos()) || world.isNaturalSpawningAllowed((BlockPos) pos));
+        return squaredDistance <= 576.0D ? false : (world.getSharedSpawnPos().closerToCenterThan(new Vec3((double) pos.getX() + 0.5D, (double) pos.getY(), (double) pos.getZ() + 0.5D), 24.0D) ? false : Objects.equals(new ChunkPos(pos), chunk.getPos()) || world.isNaturalSpawningAllowed((BlockPos) pos)); // Paper - diff on change, copy into caller
+     }
+ 
+     private static Boolean isValidSpawnPostitionForType(ServerLevel world, MobCategory group, StructureManager structureAccessor, ChunkGenerator chunkGenerator, MobSpawnSettings.SpawnerData spawnEntry, BlockPos.MutableBlockPos pos, double squaredDistance) { // Paper
+diff --git a/src/main/java/net/minecraft/world/level/chunk/LevelChunk.java b/src/main/java/net/minecraft/world/level/chunk/LevelChunk.java
+index 72da008040147bc080a3e61b926a9afaaca390dd..7568baab4bec3ded6456332ed0f6a20e2721b03f 100644
+--- a/src/main/java/net/minecraft/world/level/chunk/LevelChunk.java
+++ b/src/main/java/net/minecraft/world/level/chunk/LevelChunk.java
+@@ -221,6 +221,98 @@ public class LevelChunk extends ChunkAccess {
+         }
+     }
+     // Paper end
+    // Paper start - optimise checkDespawn
+    private boolean playerGeneralAreaCacheSet;
+    private com.destroystokyo.paper.util.misc.PooledLinkedHashSets.PooledObjectLinkedOpenHashSet<net.minecraft.server.level.ServerPlayer> playerGeneralAreaCache;
+
+    public com.destroystokyo.paper.util.misc.PooledLinkedHashSets.PooledObjectLinkedOpenHashSet<net.minecraft.server.level.ServerPlayer> getPlayerGeneralAreaCache() {
+        if (!this.playerGeneralAreaCacheSet) {
+            this.updateGeneralAreaCache();
+        }
+        return this.playerGeneralAreaCache;
+    }
+
+    public void updateGeneralAreaCache() {
+        this.updateGeneralAreaCache(((ServerLevel)this.level).getChunkSource().chunkMap.playerGeneralAreaMap.getObjectsInRange(this.coordinateKey));
+    }
+
+    public void removeGeneralAreaCache() {
+        this.playerGeneralAreaCacheSet = false;
+        this.playerGeneralAreaCache = null;
+    }
+
+    public void updateGeneralAreaCache(com.destroystokyo.paper.util.misc.PooledLinkedHashSets.PooledObjectLinkedOpenHashSet<net.minecraft.server.level.ServerPlayer> value) {
+        this.playerGeneralAreaCacheSet = true;
+        this.playerGeneralAreaCache = value;
+    }
+
+    public net.minecraft.server.level.ServerPlayer findNearestPlayer(double sourceX, double sourceY, double sourceZ,
+                                                                     double maxRange, java.util.function.Predicate<Entity> predicate) {
+        if (!this.playerGeneralAreaCacheSet) {
+            this.updateGeneralAreaCache();
+        }
+
+        com.destroystokyo.paper.util.misc.PooledLinkedHashSets.PooledObjectLinkedOpenHashSet<net.minecraft.server.level.ServerPlayer> nearby = this.playerGeneralAreaCache;
+
+        if (nearby == null) {
+            return null;
+        }
+
+        Object[] backingSet = nearby.getBackingSet();
+        double closestDistance = maxRange < 0.0 ? Double.MAX_VALUE : maxRange * maxRange;
+        net.minecraft.server.level.ServerPlayer closest = null;
+        for (int i = 0, len = backingSet.length; i < len; ++i) {
+            Object _player = backingSet[i];
+            if (!(_player instanceof net.minecraft.server.level.ServerPlayer)) {
+                continue;
+            }
+            net.minecraft.server.level.ServerPlayer player = (net.minecraft.server.level.ServerPlayer)_player;
+
+            double distance = player.distanceToSqr(sourceX, sourceY, sourceZ);
+            if (distance < closestDistance && predicate.test(player)) {
+                closest = player;
+                closestDistance = distance;
+            }
+        }
+
+        return closest;
+    }
+
+    public void getNearestPlayers(double sourceX, double sourceY, double sourceZ, java.util.function.Predicate<Entity> predicate,
+                                  double range, java.util.List<net.minecraft.server.level.ServerPlayer> ret) {
+        if (!this.playerGeneralAreaCacheSet) {
+            this.updateGeneralAreaCache();
+        }
+
+        com.destroystokyo.paper.util.misc.PooledLinkedHashSets.PooledObjectLinkedOpenHashSet<net.minecraft.server.level.ServerPlayer> nearby = this.playerGeneralAreaCache;
+
+        if (nearby == null) {
+            return;
+        }
+
+        double rangeSquared = range * range;
+
+        Object[] backingSet = nearby.getBackingSet();
+        for (int i = 0, len = backingSet.length; i < len; ++i) {
+            Object _player = backingSet[i];
+            if (!(_player instanceof net.minecraft.server.level.ServerPlayer)) {
+                continue;
+            }
+            net.minecraft.server.level.ServerPlayer player = (net.minecraft.server.level.ServerPlayer)_player;
+
+            if (range >= 0.0) {
+                double distanceSquared = player.distanceToSqr(sourceX, sourceY, sourceZ);
+                if (distanceSquared > rangeSquared) {
+                    continue;
+                }
+            }
+
+            if (predicate == null || predicate.test(player)) {
+                ret.add(player);
+            }
+        }
+    }
+    // Paper end - optimise checkDespawn
+ 
+     public LevelChunk(ServerLevel world, ProtoChunk protoChunk, @Nullable LevelChunk.PostLoadProcessor entityLoader) {
+         this(world, protoChunk.getPos(), protoChunk.getUpgradeData(), protoChunk.unpackBlockTicks(), protoChunk.unpackFluidTicks(), protoChunk.getInhabitedTime(), protoChunk.getSections(), entityLoader, protoChunk.getBlendingData());
--- a/patches/server/0700-Remove-streams-for-villager-AI.patch
+++ b/patches/server/0700-Remove-streams-for-villager-AI.patch
@ -0,0 +1,187 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Spottedleaf <Spottedleaf@users.noreply.github.com>
+Date: Thu, 27 Aug 2020 20:51:40 -0700
+Subject: [PATCH] Remove streams for villager AI
+
+
+diff --git a/src/main/java/net/minecraft/world/entity/ai/behavior/GateBehavior.java b/src/main/java/net/minecraft/world/entity/ai/behavior/GateBehavior.java
+index b45c4f50705f80163d44d9e588f86a5770f5be38..10cbb80c7cd9ba30150d8d935c0d115719c35509 100644
+--- a/src/main/java/net/minecraft/world/entity/ai/behavior/GateBehavior.java
+++ b/src/main/java/net/minecraft/world/entity/ai/behavior/GateBehavior.java
+@@ -52,7 +52,7 @@ public class GateBehavior<E extends LivingEntity> implements BehaviorControl<E>
+         if (this.hasRequiredMemories(entity)) {
+             this.status = Behavior.Status.RUNNING;
+             this.orderPolicy.apply(this.behaviors);
+-            this.runningPolicy.apply(this.behaviors.stream(), world, entity, time);
+            this.runningPolicy.apply(this.behaviors.entries, world, entity, time);
+             return true;
+         } else {
+             return false;
+@@ -61,11 +61,13 @@ public class GateBehavior<E extends LivingEntity> implements BehaviorControl<E>
+ 
+     @Override
+     public final void tickOrStop(ServerLevel world, E entity, long time) {
+-        this.behaviors.stream().filter((task) -> {
+-            return task.getStatus() == Behavior.Status.RUNNING;
+-        }).forEach((task) -> {
+-            task.tickOrStop(world, entity, time);
+-        });
+        // Paper start
+        for (BehaviorControl<? super E> task : this.behaviors) {
+            if (task.getStatus() == Behavior.Status.RUNNING) {
+                task.tickOrStop(world, entity, time);
+            }
+        }
+        // Paper end
+         if (this.behaviors.stream().noneMatch((task) -> {
+             return task.getStatus() == Behavior.Status.RUNNING;
+         })) {
+@@ -77,11 +79,11 @@ public class GateBehavior<E extends LivingEntity> implements BehaviorControl<E>
+     @Override
+     public final void doStop(ServerLevel world, E entity, long time) {
+         this.status = Behavior.Status.STOPPED;
+-        this.behaviors.stream().filter((task) -> {
+-            return task.getStatus() == Behavior.Status.RUNNING;
+-        }).forEach((task) -> {
+-            task.doStop(world, entity, time);
+-        });
+        for (BehaviorControl<? super E> behavior : this.behaviors) {
+            if (behavior.getStatus() == Behavior.Status.RUNNING) {
+                behavior.doStop(world, entity, time);
+            }
+        }
+         this.exitErasedMemories.forEach(entity.getBrain()::eraseMemory);
+     }
+ 
+@@ -117,25 +119,31 @@ public class GateBehavior<E extends LivingEntity> implements BehaviorControl<E>
+     public static enum RunningPolicy {
+         RUN_ONE {
+             @Override
+-            public <E extends LivingEntity> void apply(Stream<BehaviorControl<? super E>> tasks, ServerLevel world, E entity, long time) {
+-                tasks.filter((task) -> {
+-                    return task.getStatus() == Behavior.Status.STOPPED;
+-                }).filter((task) -> {
+-                    return task.tryStart(world, entity, time);
+-                }).findFirst();
+            // Paper start - remove streams
+            public <E extends LivingEntity> void apply(List<ShufflingList.WeightedEntry<BehaviorControl<? super E>>> tasks, ServerLevel world, E entity, long time) {
+                for (ShufflingList.WeightedEntry<BehaviorControl<? super E>> task : tasks) {
+                    final BehaviorControl<? super E> behavior = task.getData();
+                    if (behavior.getStatus() == Behavior.Status.STOPPED && behavior.tryStart(world, entity, time)) {
+                        break;
+                    }
+                }
+                // Paper end - remove streams
+             }
+         },
+         TRY_ALL {
+             @Override
+-            public <E extends LivingEntity> void apply(Stream<BehaviorControl<? super E>> tasks, ServerLevel world, E entity, long time) {
+-                tasks.filter((task) -> {
+-                    return task.getStatus() == Behavior.Status.STOPPED;
+-                }).forEach((task) -> {
+-                    task.tryStart(world, entity, time);
+-                });
+            // Paper start - remove streams
+            public <E extends LivingEntity> void apply(List<ShufflingList.WeightedEntry<BehaviorControl<? super E>>> tasks, ServerLevel world, E entity, long time) {
+                for (ShufflingList.WeightedEntry<BehaviorControl<? super E>> task : tasks) {
+                    final BehaviorControl<? super E> behavior = task.getData();
+                    if (behavior.getStatus() == Behavior.Status.STOPPED) {
+                        behavior.tryStart(world, entity, time);
+                    }
+                }
+                // Paper end - remove streams
+             }
+         };
+ 
+-        public abstract <E extends LivingEntity> void apply(Stream<BehaviorControl<? super E>> tasks, ServerLevel world, E entity, long time);
+        public abstract <E extends LivingEntity> void apply(List<ShufflingList.WeightedEntry<BehaviorControl<? super E>>> tasks, ServerLevel world, E entity, long time); // Paper - remove streams
+     }
+ }
+diff --git a/src/main/java/net/minecraft/world/entity/ai/behavior/ShufflingList.java b/src/main/java/net/minecraft/world/entity/ai/behavior/ShufflingList.java
+index 731ef21dbbd25d6924717de42f4569a9b5935643..fe3ab3d388f0481fb0db06b7f730f868dbf8e8a5 100644
+--- a/src/main/java/net/minecraft/world/entity/ai/behavior/ShufflingList.java
+++ b/src/main/java/net/minecraft/world/entity/ai/behavior/ShufflingList.java
+@@ -14,7 +14,7 @@ import java.util.stream.Stream;
+ import net.minecraft.util.RandomSource;
+ 
+ public class ShufflingList<U> implements Iterable<U> {
+-    protected final List<ShufflingList.WeightedEntry<U>> entries;
+    public final List<ShufflingList.WeightedEntry<U>> entries; // Paper - public
+     private final RandomSource random = RandomSource.create();
+     private final boolean isUnsafe; // Paper
+ 
+diff --git a/src/main/java/net/minecraft/world/entity/ai/sensing/NearestItemSensor.java b/src/main/java/net/minecraft/world/entity/ai/sensing/NearestItemSensor.java
+index 1dfcc5cba6ffb463acf161a23fff1ca452184290..2c4517850a9692f1c2b1332b58e8312fe1166772 100644
+--- a/src/main/java/net/minecraft/world/entity/ai/sensing/NearestItemSensor.java
+++ b/src/main/java/net/minecraft/world/entity/ai/sensing/NearestItemSensor.java
+@@ -25,13 +25,16 @@ public class NearestItemSensor extends Sensor<Mob> {
+     protected void doTick(ServerLevel world, Mob entity) {
+         Brain<?> brain = entity.getBrain();
+         List<ItemEntity> list = world.getEntitiesOfClass(ItemEntity.class, entity.getBoundingBox().inflate(32.0D, 16.0D, 32.0D), (itemEntity) -> {
+-            return true;
+            return itemEntity.closerThan(entity, 9.0D) && entity.wantsToPickUp(itemEntity.getItem()); // Paper - move predicate into getEntities
+         });
+-        list.sort(Comparator.comparingDouble(entity::distanceToSqr));
+        list.sort((e1, e2) -> Double.compare(entity.distanceToSqr(e1), entity.distanceToSqr(e2))); // better to take the sort perf hit than using line of sight more than we need to.
+        // Paper start - remove streams
+         // Paper start - remove streams in favour of lists
+         ItemEntity nearest = null;
+-        for (ItemEntity entityItem : list) {
+-            if (entity.wantsToPickUp(entityItem.getItem()) && entityItem.closerThan(entity, 32.0D) && entity.hasLineOfSight(entityItem)) {
+        for (int i = 0; i < list.size(); i++) {
+            ItemEntity entityItem = list.get(i);
+            if (entity.hasLineOfSight(entityItem)) {
+                // Paper end - remove streams
+                 nearest = entityItem;
+                 break;
+             }
+diff --git a/src/main/java/net/minecraft/world/entity/ai/sensing/PlayerSensor.java b/src/main/java/net/minecraft/world/entity/ai/sensing/PlayerSensor.java
+index 312775d0430f793720211dc29bb293503e799d11..75d9c4f011b5a97def215784c92bb57bbb35d06b 100644
+--- a/src/main/java/net/minecraft/world/entity/ai/sensing/PlayerSensor.java
+++ b/src/main/java/net/minecraft/world/entity/ai/sensing/PlayerSensor.java
+@@ -21,25 +21,30 @@ public class PlayerSensor extends Sensor<LivingEntity> {
+ 
+     @Override
+     protected void doTick(ServerLevel world, LivingEntity entity) {
+-        List<Player> players = new java.util.ArrayList<>(world.players());
+-        players.removeIf(player -> !EntitySelector.NO_SPECTATORS.test(player) || !entity.closerThan(player, 16.0D));
+-        players.sort(Comparator.comparingDouble(entity::distanceTo));
+        // Paper start - remove streams
+        List<Player> players = (List)world.getNearbyPlayers(entity, entity.getX(), entity.getY(), entity.getZ(), 16.0D, EntitySelector.NO_SPECTATORS);
+        players.sort((e1, e2) -> Double.compare(entity.distanceToSqr(e1), entity.distanceToSqr(e2)));
+         Brain<?> brain = entity.getBrain();
+ 
+         brain.setMemory(MemoryModuleType.NEAREST_PLAYERS, players);
+ 
+-        Player nearest = null, nearestTargetable = null;
+-        for (Player player : players) {
+-            if (Sensor.isEntityTargetable(entity, player)) {
+-                if (nearest == null) nearest = player;
+-                if (Sensor.isEntityAttackable(entity, player)) {
+-                    nearestTargetable = player;
+-                    break; // Both variables are assigned, no reason to loop further
+-                }
+        Player firstTargetable = null;
+        Player firstAttackable = null;
+        for (int index = 0, len = players.size(); index < len; ++index) {
+            Player player = players.get(index);
+            if (firstTargetable == null && isEntityTargetable(entity, player)) {
+                firstTargetable = player;
+            }
+            if (firstAttackable == null && isEntityAttackable(entity, player)) {
+                firstAttackable = player;
+            }
+
+            if (firstAttackable != null && firstTargetable != null) {
+                break;
+             }
+         }
+-        brain.setMemory(MemoryModuleType.NEAREST_VISIBLE_PLAYER, nearest);
+-        brain.setMemory(MemoryModuleType.NEAREST_VISIBLE_ATTACKABLE_PLAYER, nearestTargetable);
+-        // Paper end
+        brain.setMemory(MemoryModuleType.NEAREST_VISIBLE_PLAYER, firstTargetable);
+        brain.setMemory(MemoryModuleType.NEAREST_VISIBLE_ATTACKABLE_PLAYER, Optional.ofNullable(firstAttackable));
+        // Paper end - remove streams
+     }
+ }
--- a/patches/server/0701-Use-Velocity-compression-and-cipher-natives.patch
+++ b/patches/server/0701-Use-Velocity-compression-and-cipher-natives.patch
@ -0,0 +1,364 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Andrew Steinborn <git@steinborn.me>
+Date: Mon, 26 Jul 2021 02:15:17 -0400
+Subject: [PATCH] Use Velocity compression and cipher natives
+
+
+diff --git a/build.gradle.kts b/build.gradle.kts
+index bc71323234b69a07ac84703c04734711ca0dd113..e1e8f7c42f5e68da25b11c4cfadd67425395e558 100644
+--- a/build.gradle.kts
+++ b/build.gradle.kts
+@@ -31,6 +31,11 @@ dependencies {
+     runtimeOnly("org.xerial:sqlite-jdbc:3.42.0.0")
+     runtimeOnly("com.mysql:mysql-connector-j:8.0.33")
+     runtimeOnly("com.lmax:disruptor:3.4.4") // Paper
+    // Paper start - Use Velocity cipher
+    implementation("com.velocitypowered:velocity-native:3.1.2-SNAPSHOT") {
+        isTransitive = false
+    }
+    // Paper end
+ 
+     runtimeOnly("org.apache.maven:maven-resolver-provider:3.9.2")
+     runtimeOnly("org.apache.maven.resolver:maven-resolver-connector-basic:1.9.10")
+diff --git a/src/main/java/net/minecraft/network/CipherDecoder.java b/src/main/java/net/minecraft/network/CipherDecoder.java
+index 778beb445eac5769b9e4e07b4d1294c50ae2602b..c712fb8193115e1ab71b5e40fb0ccb9413062b03 100644
+--- a/src/main/java/net/minecraft/network/CipherDecoder.java
+++ b/src/main/java/net/minecraft/network/CipherDecoder.java
+@@ -7,13 +7,29 @@ import java.util.List;
+ import javax.crypto.Cipher;
+ 
+ public class CipherDecoder extends MessageToMessageDecoder<ByteBuf> {
+-    private final CipherBase cipher;
+    private final com.velocitypowered.natives.encryption.VelocityCipher cipher; // Paper
+ 
+-    public CipherDecoder(Cipher cipher) {
+-        this.cipher = new CipherBase(cipher);
+    public CipherDecoder(com.velocitypowered.natives.encryption.VelocityCipher cipher) {  // Paper
+        this.cipher = cipher;  // Paper
+     }
+ 
+     protected void decode(ChannelHandlerContext channelHandlerContext, ByteBuf byteBuf, List<Object> list) throws Exception {
+-        list.add(this.cipher.decipher(channelHandlerContext, byteBuf));
+        // Paper start
+        ByteBuf compatible = com.velocitypowered.natives.util.MoreByteBufUtils.ensureCompatible(channelHandlerContext.alloc(), cipher, byteBuf);
+        try {
+            cipher.process(compatible);
+            list.add(compatible);
+        } catch (Exception e) {
+            compatible.release(); // compatible will never be used if we throw an exception
+            throw e;
+        }
+        // Paper end
+     }
+
+    // Paper start
+    @Override
+    public void handlerRemoved(ChannelHandlerContext ctx) throws Exception {
+        cipher.close();
+    }
+    // Paper end
+ }
+diff --git a/src/main/java/net/minecraft/network/CipherEncoder.java b/src/main/java/net/minecraft/network/CipherEncoder.java
+index 0f3d502a9680006bcdcd7d272240a2e5c3b46790..5dd7be70603e8754d2625bb9d16900cb01b9c730 100644
+--- a/src/main/java/net/minecraft/network/CipherEncoder.java
+++ b/src/main/java/net/minecraft/network/CipherEncoder.java
+@@ -4,15 +4,32 @@ import io.netty.buffer.ByteBuf;
+ import io.netty.channel.ChannelHandlerContext;
+ import io.netty.handler.codec.MessageToByteEncoder;
+ import javax.crypto.Cipher;
+import java.util.List;
+ 
+-public class CipherEncoder extends MessageToByteEncoder<ByteBuf> {
+-    private final CipherBase cipher;
+public class CipherEncoder extends io.netty.handler.codec.MessageToMessageEncoder<ByteBuf> { // Paper - change superclass
+    private final com.velocitypowered.natives.encryption.VelocityCipher cipher; // Paper
+ 
+-    public CipherEncoder(Cipher cipher) {
+-        this.cipher = new CipherBase(cipher);
+    public CipherEncoder(com.velocitypowered.natives.encryption.VelocityCipher cipher) {  // Paper
+        this.cipher = cipher;  // Paper
+     }
+ 
+-    protected void encode(ChannelHandlerContext channelHandlerContext, ByteBuf byteBuf, ByteBuf byteBuf2) throws Exception {
+-        this.cipher.encipher(byteBuf, byteBuf2);
+    protected void encode(ChannelHandlerContext channelHandlerContext, ByteBuf byteBuf, List<Object> list) throws Exception {
+        // Paper start
+        ByteBuf compatible = com.velocitypowered.natives.util.MoreByteBufUtils.ensureCompatible(channelHandlerContext.alloc(), cipher, byteBuf);
+        try {
+            cipher.process(compatible);
+            list.add(compatible);
+        } catch (Exception e) {
+            compatible.release(); // compatible will never be used if we throw an exception
+            throw e;
+        }
+        // Paper end
+     }
+
+    // Paper start
+    @Override
+    public void handlerRemoved(ChannelHandlerContext ctx) throws Exception {
+        cipher.close();
+    }
+    // Paper end
+ }
+diff --git a/src/main/java/net/minecraft/network/CompressionDecoder.java b/src/main/java/net/minecraft/network/CompressionDecoder.java
+index b62be99c57b0a5bba0dc29809557d4d247698b13..f4d4ad983baf24d889441541d5a84dc1f49ea4d4 100644
+--- a/src/main/java/net/minecraft/network/CompressionDecoder.java
+++ b/src/main/java/net/minecraft/network/CompressionDecoder.java
+@@ -12,13 +12,20 @@ public class CompressionDecoder extends ByteToMessageDecoder {
+     public static final int MAXIMUM_COMPRESSED_LENGTH = 2097152;
+     public static final int MAXIMUM_UNCOMPRESSED_LENGTH = 8388608;
+     private final Inflater inflater;
+    private final com.velocitypowered.natives.compression.VelocityCompressor compressor; // Paper
+     private int threshold;
+     private boolean validateDecompressed;
+ 
+    // Paper start
+     public CompressionDecoder(int compressionThreshold, boolean rejectsBadPackets) {
+        this(null, compressionThreshold, rejectsBadPackets);
+    }
+    public CompressionDecoder(com.velocitypowered.natives.compression.VelocityCompressor compressor, int compressionThreshold, boolean rejectsBadPackets) {
+         this.threshold = compressionThreshold;
+         this.validateDecompressed = rejectsBadPackets;
+-        this.inflater = new Inflater();
+        this.inflater = compressor == null ? new Inflater() : null;
+        this.compressor = compressor;
+        // Paper end
+     }
+ 
+     protected void decode(ChannelHandlerContext channelHandlerContext, ByteBuf byteBuf, List<Object> list) throws Exception {
+@@ -38,6 +45,8 @@ public class CompressionDecoder extends ByteToMessageDecoder {
+                     }
+                 }
+ 
+                // Paper start
+                if (this.inflater != null) {
+                 byte[] bs = new byte[friendlyByteBuf.readableBytes()];
+                 friendlyByteBuf.readBytes(bs);
+                 this.inflater.setInput(bs);
+@@ -45,10 +54,36 @@ public class CompressionDecoder extends ByteToMessageDecoder {
+                 this.inflater.inflate(cs);
+                 list.add(Unpooled.wrappedBuffer(cs));
+                 this.inflater.reset();
+                    return;
+                }
+
+                int claimedUncompressedSize = i; // OBFHELPER
+                ByteBuf compatibleIn = com.velocitypowered.natives.util.MoreByteBufUtils.ensureCompatible(channelHandlerContext.alloc(), this.compressor, byteBuf);
+                ByteBuf uncompressed = com.velocitypowered.natives.util.MoreByteBufUtils.preferredBuffer(channelHandlerContext.alloc(), this.compressor, claimedUncompressedSize);
+                try {
+                    this.compressor.inflate(compatibleIn, uncompressed, claimedUncompressedSize);
+                    list.add(uncompressed);
+                    byteBuf.clear();
+                } catch (Exception e) {
+                    uncompressed.release();
+                    throw e;
+                } finally {
+                    compatibleIn.release();
+                }
+                // Paper end
+             }
+         }
+     }
+ 
+    // Paper start
+    @Override
+    public void handlerRemoved0(ChannelHandlerContext ctx) throws Exception {
+        if (this.compressor != null) {
+            this.compressor.close();
+        }
+    }
+    // Paper end
+
+     public void setThreshold(int compressionThreshold, boolean rejectsBadPackets) {
+         this.threshold = compressionThreshold;
+         this.validateDecompressed = rejectsBadPackets;
+diff --git a/src/main/java/net/minecraft/network/CompressionEncoder.java b/src/main/java/net/minecraft/network/CompressionEncoder.java
+index 792883afe53d2b7989c25a81c2f9a639d5e21d20..c04379ca8a4db0f4de46ad2b3b3384310eebddf3 100644
+--- a/src/main/java/net/minecraft/network/CompressionEncoder.java
+++ b/src/main/java/net/minecraft/network/CompressionEncoder.java
+@@ -6,22 +6,37 @@ import io.netty.handler.codec.MessageToByteEncoder;
+ import java.util.zip.Deflater;
+ 
+ public class CompressionEncoder extends MessageToByteEncoder<ByteBuf> {
+-    private final byte[] encodeBuf = new byte[8192];
+    private final byte[] encodeBuf; // Paper
+     private final Deflater deflater;
+    private final com.velocitypowered.natives.compression.VelocityCompressor compressor; // Paper
+     private int threshold;
+ 
+    // Paper start
+     public CompressionEncoder(int compressionThreshold) {
+        this(null, compressionThreshold);
+    }
+    public CompressionEncoder(com.velocitypowered.natives.compression.VelocityCompressor compressor, int compressionThreshold) {
+         this.threshold = compressionThreshold;
+-        this.deflater = new Deflater();
+        if (compressor == null) {
+            this.encodeBuf = new byte[8192];
+            this.deflater = new Deflater();
+        } else {
+            this.encodeBuf = null;
+            this.deflater = null;
+        }
+        this.compressor = compressor;
+        // Paper end
+     }
+ 
+-    protected void encode(ChannelHandlerContext channelHandlerContext, ByteBuf byteBuf, ByteBuf byteBuf2) {
+    protected void encode(ChannelHandlerContext channelHandlerContext, ByteBuf byteBuf, ByteBuf byteBuf2) throws Exception { // Paper
+         int i = byteBuf.readableBytes();
+         FriendlyByteBuf friendlyByteBuf = new FriendlyByteBuf(byteBuf2);
+         if (i < this.threshold) {
+             friendlyByteBuf.writeVarInt(0);
+             friendlyByteBuf.writeBytes(byteBuf);
+         } else {
+            // Paper start
+            if (this.deflater != null) {
+             byte[] bs = new byte[i];
+             byteBuf.readBytes(bs);
+             friendlyByteBuf.writeVarInt(bs.length);
+@@ -34,10 +49,48 @@ public class CompressionEncoder extends MessageToByteEncoder<ByteBuf> {
+             }
+ 
+             this.deflater.reset();
+                return;
+            }
+
+            friendlyByteBuf.writeVarInt(i);
+            ByteBuf compatibleIn = com.velocitypowered.natives.util.MoreByteBufUtils.ensureCompatible(channelHandlerContext.alloc(), this.compressor, byteBuf);
+            try {
+                this.compressor.deflate(compatibleIn, byteBuf2);
+            } finally {
+                compatibleIn.release();
+            }
+            // Paper end
+         }
+ 
+     }
+ 
+    // Paper start
+    @Override
+    protected ByteBuf allocateBuffer(ChannelHandlerContext ctx, ByteBuf msg, boolean preferDirect) throws Exception{
+        if (this.compressor != null) {
+            // We allocate bytes to be compressed plus 1 byte. This covers two cases:
+            //
+            // - Compression
+            //    According to https://github.com/ebiggers/libdeflate/blob/master/libdeflate.h#L103,
+            //    if the data compresses well (and we do not have some pathological case) then the maximum
+            //    size the compressed size will ever be is the input size minus one.
+            // - Uncompressed
+            //    This is fairly obvious - we will then have one more than the uncompressed size.
+            int initialBufferSize = msg.readableBytes() + 1;
+            return com.velocitypowered.natives.util.MoreByteBufUtils.preferredBuffer(ctx.alloc(), this.compressor, initialBufferSize);
+        }
+
+        return super.allocateBuffer(ctx, msg, preferDirect);
+    }
+
+    @Override
+    public void handlerRemoved(ChannelHandlerContext ctx) throws Exception {
+        if (this.compressor != null) {
+            this.compressor.close();
+        }
+    }
+    // Paper end
+
+     public int getThreshold() {
+         return this.threshold;
+     }
+diff --git a/src/main/java/net/minecraft/network/Connection.java b/src/main/java/net/minecraft/network/Connection.java
+index fde67116dde5dee59789de0e2ee70334db429559..f1d4d8001b44ded431ecfccafd7cefee6a552709 100644
+--- a/src/main/java/net/minecraft/network/Connection.java
+++ b/src/main/java/net/minecraft/network/Connection.java
+@@ -513,11 +513,28 @@ public class Connection extends SimpleChannelInboundHandler<Packet<?>> {
+         return networkmanager;
+     }
+ 
+-    public void setEncryptionKey(Cipher decryptionCipher, Cipher encryptionCipher) {
+-        this.encrypted = true;
+-        this.channel.pipeline().addBefore("splitter", "decrypt", new CipherDecoder(decryptionCipher));
+-        this.channel.pipeline().addBefore("prepender", "encrypt", new CipherEncoder(encryptionCipher));
+    // Paper start
+//    public void setEncryptionKey(Cipher decryptionCipher, Cipher encryptionCipher) {
+//        this.encrypted = true;
+//        this.channel.pipeline().addBefore("splitter", "decrypt", new CipherDecoder(decryptionCipher));
+//        this.channel.pipeline().addBefore("prepender", "encrypt", new CipherEncoder(encryptionCipher));
+//    }
+
+    public void setupEncryption(javax.crypto.SecretKey key) throws net.minecraft.util.CryptException {
+        if (!this.encrypted) {
+            try {
+                com.velocitypowered.natives.encryption.VelocityCipher decryption = com.velocitypowered.natives.util.Natives.cipher.get().forDecryption(key);
+                com.velocitypowered.natives.encryption.VelocityCipher encryption = com.velocitypowered.natives.util.Natives.cipher.get().forEncryption(key);
+
+                this.encrypted = true;
+                this.channel.pipeline().addBefore("splitter", "decrypt", new CipherDecoder(decryption));
+                this.channel.pipeline().addBefore("prepender", "encrypt", new CipherEncoder(encryption));
+            } catch (java.security.GeneralSecurityException e) {
+                throw new net.minecraft.util.CryptException(e);
+            }
+        }
+     }
+    // Paper end
+ 
+     public boolean isEncrypted() {
+         return this.encrypted;
+@@ -549,16 +566,17 @@ public class Connection extends SimpleChannelInboundHandler<Packet<?>> {
+ 
+     public void setupCompression(int compressionThreshold, boolean rejectsBadPackets) {
+         if (compressionThreshold >= 0) {
+            com.velocitypowered.natives.compression.VelocityCompressor compressor = com.velocitypowered.natives.util.Natives.compress.get().create(-1); // Paper
+             if (this.channel.pipeline().get("decompress") instanceof CompressionDecoder) {
+                 ((CompressionDecoder) this.channel.pipeline().get("decompress")).setThreshold(compressionThreshold, rejectsBadPackets);
+             } else {
+-                this.channel.pipeline().addBefore("decoder", "decompress", new CompressionDecoder(compressionThreshold, rejectsBadPackets));
+                this.channel.pipeline().addBefore("decoder", "decompress", new CompressionDecoder(compressor, compressionThreshold, rejectsBadPackets)); // Paper
+             }
+ 
+             if (this.channel.pipeline().get("compress") instanceof CompressionEncoder) {
+                 ((CompressionEncoder) this.channel.pipeline().get("compress")).setThreshold(compressionThreshold);
+             } else {
+-                this.channel.pipeline().addBefore("encoder", "compress", new CompressionEncoder(compressionThreshold));
+                this.channel.pipeline().addBefore("encoder", "compress", new CompressionEncoder(compressor, compressionThreshold)); // Paper
+             }
+             this.channel.pipeline().fireUserEventTriggered(io.papermc.paper.network.ConnectionEvent.COMPRESSION_THRESHOLD_SET); // Paper
+         } else {
+diff --git a/src/main/java/net/minecraft/server/network/ServerConnectionListener.java b/src/main/java/net/minecraft/server/network/ServerConnectionListener.java
+index d86830ea180bebb409fc20ed43dd25cd0856f623..14f037e721ac8ba885536cab43d3d398b011a397 100644
+--- a/src/main/java/net/minecraft/server/network/ServerConnectionListener.java
+++ b/src/main/java/net/minecraft/server/network/ServerConnectionListener.java
+@@ -101,6 +101,11 @@ public class ServerConnectionListener {
+                 ServerConnectionListener.LOGGER.info("Using default channel type");
+             }
+ 
+            // Paper start - indicate Velocity natives in use
+            ServerConnectionListener.LOGGER.info("Paper: Using " + com.velocitypowered.natives.util.Natives.compress.getLoadedVariant() + " compression from Velocity.");
+            ServerConnectionListener.LOGGER.info("Paper: Using " + com.velocitypowered.natives.util.Natives.cipher.getLoadedVariant() + " cipher from Velocity.");
+            // Paper end
+
+             this.channels.add(((ServerBootstrap) ((ServerBootstrap) (new ServerBootstrap()).channel(oclass)).childHandler(new ChannelInitializer<Channel>() {
+                 protected void initChannel(Channel channel) {
+                     try {
+diff --git a/src/main/java/net/minecraft/server/network/ServerLoginPacketListenerImpl.java b/src/main/java/net/minecraft/server/network/ServerLoginPacketListenerImpl.java
+index b026c003e1fc02a9ea426f3126acb788fc09a874..595779cfd0ee1c405d7936f00a7cae1706125e7f 100644
+--- a/src/main/java/net/minecraft/server/network/ServerLoginPacketListenerImpl.java
+++ b/src/main/java/net/minecraft/server/network/ServerLoginPacketListenerImpl.java
+@@ -265,12 +265,14 @@ public class ServerLoginPacketListenerImpl implements ServerLoginPacketListener,
+             }
+ 
+             SecretKey secretkey = packet.getSecretKey(privatekey);
+-            Cipher cipher = Crypt.getCipher(2, secretkey);
+-            Cipher cipher1 = Crypt.getCipher(1, secretkey);
+            // Paper start
+//            Cipher cipher = Crypt.getCipher(2, secretkey);
+//            Cipher cipher1 = Crypt.getCipher(1, secretkey);
+            // Paper end
+ 
+             s = (new BigInteger(Crypt.digestData("", this.server.getKeyPair().getPublic(), secretkey))).toString(16);
+             this.state = ServerLoginPacketListenerImpl.State.AUTHENTICATING;
+-            this.connection.setEncryptionKey(cipher, cipher1);
+            this.connection.setupEncryption(secretkey); // Paper
+         } catch (CryptException cryptographyexception) {
+             throw new IllegalStateException("Protocol error", cryptographyexception);
+         }
--- a/patches/server/0702-Reduce-worldgen-thread-worker-count-for-low-core-cou.patch
+++ b/patches/server/0702-Reduce-worldgen-thread-worker-count-for-low-core-cou.patch
@ -0,0 +1,31 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Spottedleaf <Spottedleaf@users.noreply.github.com>
+Date: Mon, 30 Aug 2021 04:26:40 -0700
+Subject: [PATCH] Reduce worldgen thread worker count for low core count CPUs
+
+
+diff --git a/src/main/java/net/minecraft/Util.java b/src/main/java/net/minecraft/Util.java
+index 5579dad0ba8f2e4ce43883e7d36059c2a2bd1b83..fcade0a121f155dbf4f5f8af66240923d8da460d 100644
+--- a/src/main/java/net/minecraft/Util.java
+++ b/src/main/java/net/minecraft/Util.java
+@@ -147,7 +147,19 @@ public class Util {
+ 
+     private static ExecutorService makeExecutor(String s, int priorityModifier) { // Paper - add priority
+         // Paper start - use simpler thread pool that allows 1 thread
+-        int i = Math.min(8, Math.max(Runtime.getRuntime().availableProcessors() - 2, 1));
+        // Paper start - also try to avoid suffocating the system with the worldgen workers
+        int cpus = Runtime.getRuntime().availableProcessors() / 2;
+        int i;
+        if (cpus <= 4) {
+            i = cpus <= 2 ? 1 : 2;
+        } else if (cpus <= 8) {
+            // [5, 8]
+            i = Math.max(3, cpus - 2);
+        } else {
+            i = cpus * 2 / 3;
+        }
+        i = Math.min(8, i);
+        // Paper end - also try to avoid suffocating the system with the worldgen workers
+         i = Integer.getInteger("Paper.WorkerThreadCount", i);
+         ExecutorService executorService;
+ 
--- a/patches/server/0703-Fix-Bukkit-NamespacedKey-shenanigans.patch
+++ b/patches/server/0703-Fix-Bukkit-NamespacedKey-shenanigans.patch
@ -0,0 +1,45 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Nassim Jahnke <nassim@njahnke.dev>
+Date: Sun, 24 Oct 2021 15:49:35 +0200
+Subject: [PATCH] Fix Bukkit NamespacedKey shenanigans
+
+
+diff --git a/src/main/java/com/destroystokyo/paper/loottable/PaperContainerEntityLootableInventory.java b/src/main/java/com/destroystokyo/paper/loottable/PaperContainerEntityLootableInventory.java
+index 9ca389ca789dc54bba3542cac0aac2e1dc66c870..15173e715fa36546820d930a46e0f0c493d07cfc 100644
+--- a/src/main/java/com/destroystokyo/paper/loottable/PaperContainerEntityLootableInventory.java
+++ b/src/main/java/com/destroystokyo/paper/loottable/PaperContainerEntityLootableInventory.java
+@@ -17,7 +17,7 @@ public class PaperContainerEntityLootableInventory implements PaperLootableEntit
+ 
+     @Override
+     public org.bukkit.loot.LootTable getLootTable() {
+-        return entity.getLootTable() != null ? Bukkit.getLootTable(CraftNamespacedKey.fromMinecraft(entity.getLootTable())) : null;
+        return entity.getLootTable() != null && !entity.getLootTable().getPath().isEmpty() ? Bukkit.getLootTable(CraftNamespacedKey.fromMinecraft(entity.getLootTable())) : null;
+     }
+ 
+     @Override
+diff --git a/src/main/java/com/destroystokyo/paper/loottable/PaperTileEntityLootableInventory.java b/src/main/java/com/destroystokyo/paper/loottable/PaperTileEntityLootableInventory.java
+index 9cfa5d36a6991067a3866e0d437749fafcc0158e..2ee4ee14ab3345486dad6b24fd9a4fcc6c746b99 100644
+--- a/src/main/java/com/destroystokyo/paper/loottable/PaperTileEntityLootableInventory.java
+++ b/src/main/java/com/destroystokyo/paper/loottable/PaperTileEntityLootableInventory.java
+@@ -15,7 +15,7 @@ public class PaperTileEntityLootableInventory implements PaperLootableBlockInven
+ 
+     @Override
+     public org.bukkit.loot.LootTable getLootTable() {
+-        return tileEntityLootable.lootTable != null ? Bukkit.getLootTable(CraftNamespacedKey.fromMinecraft(tileEntityLootable.lootTable)) : null;
+        return tileEntityLootable.lootTable != null && !tileEntityLootable.lootTable.getPath().isEmpty() ? Bukkit.getLootTable(CraftNamespacedKey.fromMinecraft(tileEntityLootable.lootTable)) : null;
+     }
+ 
+     @Override
+diff --git a/src/main/java/org/bukkit/craftbukkit/util/CraftNamespacedKey.java b/src/main/java/org/bukkit/craftbukkit/util/CraftNamespacedKey.java
+index 5f40d240b879e3989897b6e45725a8e5a6a7f194..5014192edb9616ce725fc1592832034789527b6f 100644
+--- a/src/main/java/org/bukkit/craftbukkit/util/CraftNamespacedKey.java
+++ b/src/main/java/org/bukkit/craftbukkit/util/CraftNamespacedKey.java
+@@ -13,7 +13,7 @@ public final class CraftNamespacedKey {
+             return null;
+         }
+         ResourceLocation minecraft = ResourceLocation.tryParse(string);
+-        return (minecraft == null) ? null : CraftNamespacedKey.fromMinecraft(minecraft);
+        return (minecraft == null || minecraft.getPath().isEmpty()) ? null : CraftNamespacedKey.fromMinecraft(minecraft); // Paper - Bukkit's parser does not match Vanilla for empty paths
+     }
+ 
+     public static NamespacedKey fromString(String string) {
--- a/patches/server/0704-Fix-merchant-inventory-not-closing-on-entity-removal.patch
+++ b/patches/server/0704-Fix-merchant-inventory-not-closing-on-entity-removal.patch
@ -0,0 +1,22 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Jake Potrebic <jake.m.potrebic@gmail.com>
+Date: Thu, 2 Sep 2021 00:24:06 -0700
+Subject: [PATCH] Fix merchant inventory not closing on entity removal
+
+
+diff --git a/src/main/java/net/minecraft/server/level/ServerLevel.java b/src/main/java/net/minecraft/server/level/ServerLevel.java
+index 4bec4a6955d6c38c8bd8fb9a10d153209d693a01..b89544fdfceee67fb452c37294131efca007e2fe 100644
+--- a/src/main/java/net/minecraft/server/level/ServerLevel.java
+++ b/src/main/java/net/minecraft/server/level/ServerLevel.java
+@@ -2656,6 +2656,11 @@ public class ServerLevel extends Level implements WorldGenLevel {
+             // Spigot end
+             // Spigot Start
+             if (entity.getBukkitEntity() instanceof org.bukkit.inventory.InventoryHolder && (!(entity instanceof ServerPlayer) || entity.getRemovalReason() != Entity.RemovalReason.KILLED)) { // SPIGOT-6876: closeInventory clears death message
+                // Paper start
+                if (entity.getBukkitEntity() instanceof org.bukkit.inventory.Merchant merchant && merchant.getTrader() != null) {
+                    merchant.getTrader().closeInventory(org.bukkit.event.inventory.InventoryCloseEvent.Reason.UNLOADED);
+                }
+                // Paper end
+                 for (org.bukkit.entity.HumanEntity h : Lists.newArrayList(((org.bukkit.inventory.InventoryHolder) entity.getBukkitEntity()).getInventory().getViewers())) {
+                     h.closeInventory(org.bukkit.event.inventory.InventoryCloseEvent.Reason.UNLOADED); // Paper
+                 }
--- a/patches/server/0705-Check-requirement-before-suggesting-root-nodes.patch
+++ b/patches/server/0705-Check-requirement-before-suggesting-root-nodes.patch
@ -0,0 +1,32 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: stonar96 <minecraft.stonar96@gmail.com>
+Date: Sun, 12 Sep 2021 00:14:21 +0200
+Subject: [PATCH] Check requirement before suggesting root nodes
+
+Child nodes are handled by CommandDispatcher#parse checking
+requirements.
+
+Vanilla clients only send ServerboundCommandSuggestionPacket when
+encountering a command node with ASK_SERVER suggestions, however a
+modified client can send this packet whenever it wants.
+
+diff --git a/src/main/java/com/mojang/brigadier/CommandDispatcher.java b/src/main/java/com/mojang/brigadier/CommandDispatcher.java
+index e733a5657032d29e5a0d64375c9e36639360a7e0..b64c98c173e25055f4ff9d7124d0a3cb7ff6ab1d 100644
+--- a/src/main/java/com/mojang/brigadier/CommandDispatcher.java
+++ b/src/main/java/com/mojang/brigadier/CommandDispatcher.java
+@@ -595,10 +595,14 @@ public class CommandDispatcher<S> {
+         int i = 0;
+         for (final CommandNode<S> node : parent.getChildren()) {
+             CompletableFuture<Suggestions> future = Suggestions.empty();
+            // Paper start - Don't suggest if the requirement isn't met
+            if (parent != this.root || node.canUse(context.getSource())) {
+             try {
+-                if (node.canUse(parse.getContext().getSource())) future = node.listSuggestions(context.build(truncatedInput), new SuggestionsBuilder(truncatedInput, truncatedInputLowerCase, start)); // CraftBukkit
+                future = node.listSuggestions(context.build(truncatedInput), new SuggestionsBuilder(truncatedInput, truncatedInputLowerCase, start)); // CraftBukkit
+             } catch (final CommandSyntaxException ignored) {
+             }
+            }
+            // Paper end
+             futures[i++] = future;
+         }
+ 
--- a/patches/server/0706-Don-t-respond-to-ServerboundCommandSuggestionPacket-.patch
+++ b/patches/server/0706-Don-t-respond-to-ServerboundCommandSuggestionPacket-.patch
@ -0,0 +1,23 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: stonar96 <minecraft.stonar96@gmail.com>
+Date: Sun, 12 Sep 2021 00:14:21 +0200
+Subject: [PATCH] Don't respond to ServerboundCommandSuggestionPacket when
+ tab-complete is disabled
+
+
+diff --git a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
+index ee5f58ae4c276b4529d7dd35aa5cfa515e058d77..2b6e315d275cf5e303663c175745a5fe2e35969f 100644
+--- a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
+++ b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
+@@ -847,6 +847,11 @@ public class ServerGamePacketListenerImpl implements ServerPlayerConnection, Tic
+         }
+         // Paper end
+         // CraftBukkit end
+        // Paper start - Don't suggest if tab-complete is disabled
+        if (org.spigotmc.SpigotConfig.tabComplete < 0) {
+            return;
+        }
+        // Paper end - Don't suggest if tab-complete is disabled
+         // Paper start - async tab completion
+         TAB_COMPLETE_EXECUTOR.execute(() -> {
+         StringReader stringreader = new StringReader(packet.getCommand());
--- a/patches/server/0707-Fix-setPatternColor-on-tropical-fish-bucket-meta.patch
+++ b/patches/server/0707-Fix-setPatternColor-on-tropical-fish-bucket-meta.patch
@ -0,0 +1,71 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Bjarne Koll <lynxplay101@gmail.com>
+Date: Sat, 6 Nov 2021 23:15:20 +0100
+Subject: [PATCH] Fix setPatternColor on tropical fish bucket meta
+
+Prior to this commit, the tropical fish bucket meta would set the body
+color to the previous metas pattern colour when updating the pattern
+colour.
+
+This commit hence simply fixes this by using the proper body colour
+value when updating the pattern color.
+
+diff --git a/src/main/java/org/bukkit/craftbukkit/inventory/CraftMetaTropicalFishBucket.java b/src/main/java/org/bukkit/craftbukkit/inventory/CraftMetaTropicalFishBucket.java
+index 581e0f4d68d6eb8eb04449586ffdba35e8b3ad2b..9a045a7793ec20334853a0e1c3529b31899214b3 100644
+--- a/src/main/java/org/bukkit/craftbukkit/inventory/CraftMetaTropicalFishBucket.java
+++ b/src/main/java/org/bukkit/craftbukkit/inventory/CraftMetaTropicalFishBucket.java
+@@ -107,7 +107,7 @@ class CraftMetaTropicalFishBucket extends CraftMetaItem implements TropicalFishB
+         if (this.variant == null) {
+             this.variant = 0;
+         }
+-        this.variant = CraftTropicalFish.getData(color, this.getPatternColor(), this.getPattern());
+        this.variant = CraftTropicalFish.getData(color, this.getBodyColor(), this.getPattern()); // Paper - properly set tropical fish pattern color without mutating body color
+     }
+ 
+     @Override
+diff --git a/src/test/java/io/papermc/paper/inventory/CraftMetaTropicalFishBucketTest.java b/src/test/java/io/papermc/paper/inventory/CraftMetaTropicalFishBucketTest.java
+new file mode 100644
+index 0000000000000000000000000000000000000000..2e7f8ef88ae74c7cbfdb7f397951cbc8479a995f
+--- /dev/null
+++ b/src/test/java/io/papermc/paper/inventory/CraftMetaTropicalFishBucketTest.java
+@@ -0,0 +1,40 @@
+package io.papermc.paper.inventory;
+
+import org.bukkit.DyeColor;
+import org.bukkit.Material;
+import org.bukkit.entity.TropicalFish;
+import org.bukkit.inventory.ItemStack;
+import org.bukkit.inventory.meta.TropicalFishBucketMeta;
+import org.bukkit.support.AbstractTestingBase;
+import org.junit.Assert;
+import org.junit.Test;
+
+public class CraftMetaTropicalFishBucketTest extends AbstractTestingBase {
+
+    @Test
+    public void testAllCombinations() {
+        final var rawMeta = new ItemStack(Material.TROPICAL_FISH_BUCKET).getItemMeta();
+        Assert.assertTrue("Meta was not a tropical fish bucket", rawMeta instanceof TropicalFishBucketMeta);
+
+        final var meta = (TropicalFishBucketMeta) rawMeta;
+
+        for (final var bodyColor : DyeColor.values()) {
+            for (final var pattern : TropicalFish.Pattern.values()) {
+                for (final var patternColor : DyeColor.values()) {
+                    meta.setBodyColor(bodyColor);
+                    Assert.assertEquals("Body color did not match post body color!", bodyColor, meta.getBodyColor());
+
+                    meta.setPattern(pattern);
+                    Assert.assertEquals("Pattern did not match post pattern!", pattern, meta.getPattern());
+                    Assert.assertEquals("Body color did not match post pattern!", bodyColor, meta.getBodyColor());
+
+                    meta.setPatternColor(patternColor);
+                    Assert.assertEquals("Pattern did not match post pattern color!", pattern, meta.getPattern());
+                    Assert.assertEquals("Body color did not match post pattern color!", bodyColor, meta.getBodyColor());
+                    Assert.assertEquals("Pattern color did not match post pattern color!", patternColor, meta.getPatternColor());
+                }
+            }
+        }
+    }
+
+}
--- a/patches/server/0708-Ensure-valid-vehicle-status.patch
+++ b/patches/server/0708-Ensure-valid-vehicle-status.patch
@ -0,0 +1,19 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Nassim Jahnke <nassim@njahnke.dev>
+Date: Tue, 28 Sep 2021 09:47:47 +0200
+Subject: [PATCH] Ensure valid vehicle status
+
+
+diff --git a/src/main/java/net/minecraft/server/level/ServerPlayer.java b/src/main/java/net/minecraft/server/level/ServerPlayer.java
+index c9b07d321a22060086a8608c6ff5f8f0608d988f..768f9ef872ed1bb3157c6fa122e1e3d76417a4b6 100644
+--- a/src/main/java/net/minecraft/server/level/ServerPlayer.java
+++ b/src/main/java/net/minecraft/server/level/ServerPlayer.java
+@@ -568,7 +568,7 @@ public class ServerPlayer extends Player {
+             }
+         }
+ 
+-        if (persistVehicle && entity1 != null && entity != this && entity.hasExactlyOnePlayerPassenger()) {
+        if (persistVehicle && entity1 != null && entity != this && entity.hasExactlyOnePlayerPassenger() && !entity.isRemoved()) { // Paper
+             // CraftBukkit end
+             CompoundTag nbttagcompound2 = new CompoundTag();
+             CompoundTag nbttagcompound3 = new CompoundTag();
--- a/patches/server/0709-Prevent-softlocked-end-exit-portal-generation.patch
+++ b/patches/server/0709-Prevent-softlocked-end-exit-portal-generation.patch
@ -0,0 +1,22 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Noah van der Aa <ndvdaa@gmail.com>
+Date: Mon, 30 Aug 2021 15:22:18 +0200
+Subject: [PATCH] Prevent softlocked end exit portal generation
+
+
+diff --git a/src/main/java/net/minecraft/world/level/dimension/end/EndDragonFight.java b/src/main/java/net/minecraft/world/level/dimension/end/EndDragonFight.java
+index eab54838ba540f41cc59a359dd00ba80d82c771e..17b5386d147dc007c487da3561ea5a5d3cd6db22 100644
+--- a/src/main/java/net/minecraft/world/level/dimension/end/EndDragonFight.java
+++ b/src/main/java/net/minecraft/world/level/dimension/end/EndDragonFight.java
+@@ -412,6 +412,11 @@ public class EndDragonFight {
+             }
+         }
+ 
+        // Paper start - Prevent "softlocked" exit portal generation
+        if (this.portalLocation.getY() <= this.level.getMinBuildHeight()) {
+            this.portalLocation = this.portalLocation.atY(this.level.getMinBuildHeight() + 1);
+        }
+        // Paper end
+         endPodiumFeature.place(FeatureConfiguration.NONE, this.level, this.level.getChunkSource().getGenerator(), RandomSource.create(), this.portalLocation);
+     }
+ 
--- a/patches/server/0710-Fix-CocaoDecorator-causing-a-crash-when-trying-to-ge.patch
+++ b/patches/server/0710-Fix-CocaoDecorator-causing-a-crash-when-trying-to-ge.patch
@ -0,0 +1,19 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Shane Freeder <theboyetronic@gmail.com>
+Date: Tue, 7 Sep 2021 21:29:38 +0100
+Subject: [PATCH] Fix CocaoDecorator causing a crash when trying to generate
+ without logs
+
+
+diff --git a/src/main/java/net/minecraft/world/level/levelgen/feature/treedecorators/CocoaDecorator.java b/src/main/java/net/minecraft/world/level/levelgen/feature/treedecorators/CocoaDecorator.java
+index 42b4b306ee89a9e422d234bdaa9b43b118f8bd0a..0fc355bd847749f7ce716b283dd571f143824795 100644
+--- a/src/main/java/net/minecraft/world/level/levelgen/feature/treedecorators/CocoaDecorator.java
+++ b/src/main/java/net/minecraft/world/level/levelgen/feature/treedecorators/CocoaDecorator.java
+@@ -25,6 +25,7 @@ public class CocoaDecorator extends TreeDecorator {
+ 
+     @Override
+     public void place(TreeDecorator.Context generator) {
+        if (generator.logs().isEmpty()) return; // Paper
+         RandomSource randomSource = generator.random();
+         if (!(randomSource.nextFloat() >= this.probability)) {
+             List<BlockPos> list = generator.logs();
--- a/patches/server/0711-Don-t-log-debug-logging-being-disabled.patch
+++ b/patches/server/0711-Don-t-log-debug-logging-being-disabled.patch
@ -0,0 +1,19 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Noah van der Aa <ndvdaa@gmail.com>
+Date: Tue, 14 Sep 2021 16:24:45 +0200
+Subject: [PATCH] Don't log debug logging being disabled
+
+
+diff --git a/src/main/java/org/spigotmc/SpigotConfig.java b/src/main/java/org/spigotmc/SpigotConfig.java
+index 3ac48dafe2300ff4cf4591569fec9ce4916503cd..612c3169c3463d702b85975e1db79ae6e47d60d0 100644
+--- a/src/main/java/org/spigotmc/SpigotConfig.java
+++ b/src/main/java/org/spigotmc/SpigotConfig.java
+@@ -382,7 +382,7 @@ public class SpigotConfig
+             Bukkit.getLogger().info( "Debug logging is enabled" );
+         } else
+         {
+-            Bukkit.getLogger().info( "Debug logging is disabled" );
+            // Bukkit.getLogger().info( "Debug logging is disabled" ); // Paper - Don't log if debug logging isn't enabled.
+         }
+     }
+ 
--- a/patches/server/0712-fix-various-menus-with-empty-level-accesses.patch
+++ b/patches/server/0712-fix-various-menus-with-empty-level-accesses.patch
@ -0,0 +1,23 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Jake Potrebic <jake.m.potrebic@gmail.com>
+Date: Sun, 11 Jul 2021 12:52:56 -0700
+Subject: [PATCH] fix various menus with empty level accesses
+
+
+diff --git a/src/main/java/net/minecraft/world/inventory/ContainerLevelAccess.java b/src/main/java/net/minecraft/world/inventory/ContainerLevelAccess.java
+index c96b04f045dda384cdee9254a1765ef97e5f7f03..f00a957a0f55e69f93e6d7dc80193304447c3dcb 100644
+--- a/src/main/java/net/minecraft/world/inventory/ContainerLevelAccess.java
+++ b/src/main/java/net/minecraft/world/inventory/ContainerLevelAccess.java
+@@ -27,6 +27,12 @@ public interface ContainerLevelAccess {
+         public <T> Optional<T> evaluate(BiFunction<Level, BlockPos, T> getter) {
+             return Optional.empty();
+         }
+        // Paper start
+        @Override
+        public org.bukkit.Location getLocation() {
+            return null;
+        }
+        // Paper end
+     };
+ 
+     static ContainerLevelAccess create(final Level world, final BlockPos pos) {
--- a/patches/server/0713-Preserve-overstacked-loot.patch
+++ b/patches/server/0713-Preserve-overstacked-loot.patch
@ -0,0 +1,27 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: lexikiq <noellekiq@gmail.com>
+Date: Mon, 21 Jun 2021 23:21:58 -0400
+Subject: [PATCH] Preserve overstacked loot
+
+Preserves overstacked items in loot tables, such as shulker box drops, to prevent the items
+from being deleted (as they'd overflow past the bounds of the container)-- or worse, causing
+chunk bans via the large amount of NBT created by unstacking the items.
+
+Fixes GH-5140 and GH-4748.
+
+diff --git a/src/main/java/net/minecraft/world/level/storage/loot/LootTable.java b/src/main/java/net/minecraft/world/level/storage/loot/LootTable.java
+index d123bd7095355dff84b9859657e24258c5a204e3..e46a0afa45ee771a0114703acc314d7cf8e8ffed 100644
+--- a/src/main/java/net/minecraft/world/level/storage/loot/LootTable.java
+++ b/src/main/java/net/minecraft/world/level/storage/loot/LootTable.java
+@@ -62,9 +62,10 @@ public class LootTable {
+     }
+ 
+     public static Consumer<ItemStack> createStackSplitter(ServerLevel world, Consumer<ItemStack> consumer) {
+        boolean skipSplitter = world != null && !world.paperConfig().fixes.splitOverstackedLoot; // Paper - preserve overstacked items
+         return (itemstack) -> {
+             if (itemstack.isItemEnabled(world.enabledFeatures())) {
+-                if (itemstack.getCount() < itemstack.getMaxStackSize()) {
+                if (skipSplitter || itemstack.getCount() < itemstack.getMaxStackSize()) { // Paper - preserve overstacked items
+                     consumer.accept(itemstack);
+                 } else {
+                     int i = itemstack.getCount();
--- a/patches/server/0714-Update-head-rotation-in-missing-places.patch
+++ b/patches/server/0714-Update-head-rotation-in-missing-places.patch
@ -0,0 +1,29 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Owen1212055 <23108066+Owen1212055@users.noreply.github.com>
+Date: Mon, 21 Jun 2021 21:55:23 -0400
+Subject: [PATCH] Update head rotation in missing places
+
+In certain areas the player's head rotation could be desynced when teleported/moved.
+This is because bukkit uses a separate head rotation field for yaw.
+This issue only applies to players.
+
+diff --git a/src/main/java/net/minecraft/world/entity/Entity.java b/src/main/java/net/minecraft/world/entity/Entity.java
+index eb9f56de921edfefc0655be47449ffbc97145e07..d776c95e7c0752cdfcc44fb17509d5dc8605d8a8 100644
+--- a/src/main/java/net/minecraft/world/entity/Entity.java
+++ b/src/main/java/net/minecraft/world/entity/Entity.java
+@@ -1870,6 +1870,7 @@ public abstract class Entity implements Nameable, EntityAccess, CommandSource {
+         this.setXRot(Mth.clamp(pitch, -90.0F, 90.0F) % 360.0F);
+         this.yRotO = this.getYRot();
+         this.xRotO = this.getXRot();
+        this.setYHeadRot(yaw); // Paper - Update head rotation
+     }
+ 
+     public void absMoveTo(double x, double y, double z) {
+@@ -1908,6 +1909,7 @@ public abstract class Entity implements Nameable, EntityAccess, CommandSource {
+         this.setXRot(pitch);
+         this.setOldPosAndRot();
+         this.reapplyPosition();
+        this.setYHeadRot(yaw); // Paper - Update head rotation
+     }
+ 
+     public final void setOldPosAndRot() {
--- a/patches/server/0715-prevent-unintended-light-block-manipulation.patch
+++ b/patches/server/0715-prevent-unintended-light-block-manipulation.patch
@ -0,0 +1,18 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Jake Potrebic <jake.m.potrebic@gmail.com>
+Date: Mon, 13 Sep 2021 18:55:45 -0700
+Subject: [PATCH] prevent unintended light block manipulation
+
+
+diff --git a/src/main/java/net/minecraft/world/level/block/LightBlock.java b/src/main/java/net/minecraft/world/level/block/LightBlock.java
+index 6427302f53336fe035882d0a09e3e2d2d929d3b7..6eec44c484763f877aece6d9676ffc166bc10395 100644
+--- a/src/main/java/net/minecraft/world/level/block/LightBlock.java
+++ b/src/main/java/net/minecraft/world/level/block/LightBlock.java
+@@ -46,6 +46,7 @@ public class LightBlock extends Block implements SimpleWaterloggedBlock {
+     @Override
+     public InteractionResult use(BlockState state, Level world, BlockPos pos, Player player, InteractionHand hand, BlockHitResult hit) {
+         if (!world.isClientSide && player.canUseGameMasterBlocks()) {
+            if (player.getItemInHand(hand).getItem() != Items.LIGHT || !player.mayInteract(world, pos) || !player.mayUseItemAt(pos, hit.getDirection(), player.getItemInHand(hand))) { return InteractionResult.FAIL; } // Paper
+             world.setBlock(pos, state.cycle(LEVEL), 2);
+             return InteractionResult.SUCCESS;
+         } else {
--- a/patches/server/0716-Fix-CraftCriteria-defaults-map.patch
+++ b/patches/server/0716-Fix-CraftCriteria-defaults-map.patch
@ -0,0 +1,19 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Jake Potrebic <jake.m.potrebic@gmail.com>
+Date: Mon, 4 Oct 2021 22:31:51 -0700
+Subject: [PATCH] Fix CraftCriteria defaults map
+
+
+diff --git a/src/main/java/org/bukkit/craftbukkit/scoreboard/CraftCriteria.java b/src/main/java/org/bukkit/craftbukkit/scoreboard/CraftCriteria.java
+index a8728102499ec8a0b4946bcc9b59c16193731f8c..d849ef9a51dc901c8045d63218b8ee5fa5c7ee7a 100644
+--- a/src/main/java/org/bukkit/craftbukkit/scoreboard/CraftCriteria.java
+++ b/src/main/java/org/bukkit/craftbukkit/scoreboard/CraftCriteria.java
+@@ -54,7 +54,7 @@ public final class CraftCriteria implements Criteria {
+     }
+ 
+     static CraftCriteria getFromNMS(Objective objective) {
+-        return CraftCriteria.DEFAULTS.get(objective.getCriteria().getName());
+        return java.util.Objects.requireNonNullElseGet(CraftCriteria.DEFAULTS.get(objective.getCriteria().getName()), () -> new CraftCriteria(objective.getCriteria())); // Paper
+     }
+ 
+     public static CraftCriteria getFromBukkit(String name) {
--- a/patches/server/0717-Fix-upstreams-block-state-factories.patch
+++ b/patches/server/0717-Fix-upstreams-block-state-factories.patch
@ -0,0 +1,415 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Jake Potrebic <jake.m.potrebic@gmail.com>
+Date: Wed, 6 Oct 2021 20:50:48 -0700
+Subject: [PATCH] Fix upstreams block state factories
+
+Sometimes, blocks are changed and then logic is called before the associated
+tile entity is removed. When this happens, the factories were relying on the
+block at the position, not the tile entity. This change prioritizes using the
+tile entity type to determine the block state factory and falls back on
+the material type of the block at that location.
+
+== AT ==
+public net.minecraft.world.level.block.entity.BlockEntityType validBlocks
+
+diff --git a/src/main/java/net/minecraft/world/level/block/entity/BlockEntity.java b/src/main/java/net/minecraft/world/level/block/entity/BlockEntity.java
+index d156f7cc71050f13b2feca00c52ca6b64572b60e..e3557f4c8cee7c88b3e352cd246078da7762effc 100644
+--- a/src/main/java/net/minecraft/world/level/block/entity/BlockEntity.java
+++ b/src/main/java/net/minecraft/world/level/block/entity/BlockEntity.java
+@@ -247,7 +247,7 @@ public abstract class BlockEntity {
+         // Paper end
+         if (this.level == null) return null;
+         org.bukkit.block.Block block = this.level.getWorld().getBlockAt(this.worldPosition.getX(), this.worldPosition.getY(), this.worldPosition.getZ());
+-        if (block.getType() == org.bukkit.Material.AIR) return null;
+        // if (block.getType() == org.bukkit.Material.AIR) return null; // Paper - actually get the tile entity if it still exists
+         org.bukkit.block.BlockState state = block.getState(useSnapshot); // Paper
+         if (state instanceof InventoryHolder) return (InventoryHolder) state;
+         return null;
+diff --git a/src/main/java/org/bukkit/craftbukkit/block/CraftBlockEntityState.java b/src/main/java/org/bukkit/craftbukkit/block/CraftBlockEntityState.java
+index 87c25170fbe8b0591d452612496ee1a627138de7..a2894f02ceb7c58f6eafe055e1ff47b197b100f2 100644
+--- a/src/main/java/org/bukkit/craftbukkit/block/CraftBlockEntityState.java
+++ b/src/main/java/org/bukkit/craftbukkit/block/CraftBlockEntityState.java
+@@ -6,7 +6,7 @@ import org.bukkit.World;
+ import org.bukkit.block.TileState;
+ import org.bukkit.persistence.PersistentDataContainer;
+ 
+-public class CraftBlockEntityState<T extends BlockEntity> extends CraftBlockState implements TileState {
+public abstract class CraftBlockEntityState<T extends BlockEntity> extends CraftBlockState implements TileState { // Paper - revert upstream's revert of the block state changes
+ 
+     private final T tileEntity;
+     private final T snapshot;
+diff --git a/src/main/java/org/bukkit/craftbukkit/block/CraftBlockStates.java b/src/main/java/org/bukkit/craftbukkit/block/CraftBlockStates.java
+index 17e1131c79ad140c0803a914621ce7924f0f2a6d..d7663b902b768030008b28f9a8f6dd324a30e38f 100644
+--- a/src/main/java/org/bukkit/craftbukkit/block/CraftBlockStates.java
+++ b/src/main/java/org/bukkit/craftbukkit/block/CraftBlockStates.java
+@@ -19,6 +19,7 @@ import net.minecraft.world.level.block.entity.BeehiveBlockEntity;
+ import net.minecraft.world.level.block.entity.BellBlockEntity;
+ import net.minecraft.world.level.block.entity.BlastFurnaceBlockEntity;
+ import net.minecraft.world.level.block.entity.BlockEntity;
+import net.minecraft.world.level.block.entity.BlockEntityType; // Paper
+ import net.minecraft.world.level.block.entity.BrewingStandBlockEntity;
+ import net.minecraft.world.level.block.entity.BrushableBlockEntity;
+ import net.minecraft.world.level.block.entity.CalibratedSculkSensorBlockEntity;
+@@ -113,225 +114,61 @@ public final class CraftBlockStates {
+     private static final BlockStateFactory<?> DEFAULT_FACTORY = new BlockStateFactory<CraftBlockState>(CraftBlockState.class) {
+         @Override
+         public CraftBlockState createBlockState(World world, BlockPos blockPosition, net.minecraft.world.level.block.state.BlockState blockData, BlockEntity tileEntity) {
+-            // SPIGOT-6754, SPIGOT-6817: Restore previous behaviour for tile entities with removed blocks (loot generation post-destroy)
+-            if (tileEntity != null) {
+-                // block with unhandled TileEntity:
+-                return new CraftBlockEntityState<>(world, tileEntity);
+-            }
+            // Paper - revert upstream's revert of the block state changes. Block entities that have already had the block type set to AIR are still valid, upstream decided to ignore them
+             Preconditions.checkState(tileEntity == null, "Unexpected BlockState for %s", CraftMagicNumbers.getMaterial(blockData.getBlock()));
+             return new CraftBlockState(world, blockPosition, blockData);
+         }
+     };
+    // Paper start
+    private static final Map<BlockEntityType<?>, BlockStateFactory<?>> FACTORIES_BY_BLOCK_ENTITY_TYPE = new HashMap<>();
+    private static void register(BlockEntityType<?> type, BlockStateFactory<?> factory) {
+        FACTORIES_BY_BLOCK_ENTITY_TYPE.put(type, factory);
+    }
+    // Paper end
+ 
+     static {
+-        register(
+-                Arrays.asList(
+-                        Material.ACACIA_SIGN,
+-                        Material.ACACIA_WALL_SIGN,
+-                        Material.BAMBOO_SIGN,
+-                        Material.BAMBOO_WALL_SIGN,
+-                        Material.BIRCH_SIGN,
+-                        Material.BIRCH_WALL_SIGN,
+-                        Material.CHERRY_SIGN,
+-                        Material.CHERRY_WALL_SIGN,
+-                        Material.CRIMSON_SIGN,
+-                        Material.CRIMSON_WALL_SIGN,
+-                        Material.DARK_OAK_SIGN,
+-                        Material.DARK_OAK_WALL_SIGN,
+-                        Material.JUNGLE_SIGN,
+-                        Material.JUNGLE_WALL_SIGN,
+-                        Material.MANGROVE_SIGN,
+-                        Material.MANGROVE_WALL_SIGN,
+-                        Material.OAK_SIGN,
+-                        Material.OAK_WALL_SIGN,
+-                        Material.SPRUCE_SIGN,
+-                        Material.SPRUCE_WALL_SIGN,
+-                        Material.WARPED_SIGN,
+-                        Material.WARPED_WALL_SIGN
+-                ), CraftSign.class, CraftSign::new, SignBlockEntity::new
+-        );
+-
+-        register(
+-                Arrays.asList(
+-                        Material.ACACIA_HANGING_SIGN,
+-                        Material.ACACIA_WALL_HANGING_SIGN,
+-                        Material.BAMBOO_HANGING_SIGN,
+-                        Material.BAMBOO_WALL_HANGING_SIGN,
+-                        Material.BIRCH_HANGING_SIGN,
+-                        Material.BIRCH_WALL_HANGING_SIGN,
+-                        Material.CHERRY_HANGING_SIGN,
+-                        Material.CHERRY_WALL_HANGING_SIGN,
+-                        Material.CRIMSON_HANGING_SIGN,
+-                        Material.CRIMSON_WALL_HANGING_SIGN,
+-                        Material.DARK_OAK_HANGING_SIGN,
+-                        Material.DARK_OAK_WALL_HANGING_SIGN,
+-                        Material.JUNGLE_HANGING_SIGN,
+-                        Material.JUNGLE_WALL_HANGING_SIGN,
+-                        Material.MANGROVE_HANGING_SIGN,
+-                        Material.MANGROVE_WALL_HANGING_SIGN,
+-                        Material.OAK_HANGING_SIGN,
+-                        Material.OAK_WALL_HANGING_SIGN,
+-                        Material.SPRUCE_HANGING_SIGN,
+-                        Material.SPRUCE_WALL_HANGING_SIGN,
+-                        Material.WARPED_HANGING_SIGN,
+-                        Material.WARPED_WALL_HANGING_SIGN
+-                ), CraftHangingSign.class, CraftHangingSign::new, HangingSignBlockEntity::new
+-        );
+-
+-        register(
+-                Arrays.asList(
+-                        Material.CREEPER_HEAD,
+-                        Material.CREEPER_WALL_HEAD,
+-                        Material.DRAGON_HEAD,
+-                        Material.DRAGON_WALL_HEAD,
+-                        Material.PIGLIN_HEAD,
+-                        Material.PIGLIN_WALL_HEAD,
+-                        Material.PLAYER_HEAD,
+-                        Material.PLAYER_WALL_HEAD,
+-                        Material.SKELETON_SKULL,
+-                        Material.SKELETON_WALL_SKULL,
+-                        Material.WITHER_SKELETON_SKULL,
+-                        Material.WITHER_SKELETON_WALL_SKULL,
+-                        Material.ZOMBIE_HEAD,
+-                        Material.ZOMBIE_WALL_HEAD
+-                ), CraftSkull.class, CraftSkull::new, SkullBlockEntity::new
+-        );
+-
+-        register(
+-                Arrays.asList(
+-                        Material.COMMAND_BLOCK,
+-                        Material.REPEATING_COMMAND_BLOCK,
+-                        Material.CHAIN_COMMAND_BLOCK
+-                ), CraftCommandBlock.class, CraftCommandBlock::new, CommandBlockEntity::new
+-        );
+-
+-        register(
+-                Arrays.asList(
+-                        Material.BLACK_BANNER,
+-                        Material.BLACK_WALL_BANNER,
+-                        Material.BLUE_BANNER,
+-                        Material.BLUE_WALL_BANNER,
+-                        Material.BROWN_BANNER,
+-                        Material.BROWN_WALL_BANNER,
+-                        Material.CYAN_BANNER,
+-                        Material.CYAN_WALL_BANNER,
+-                        Material.GRAY_BANNER,
+-                        Material.GRAY_WALL_BANNER,
+-                        Material.GREEN_BANNER,
+-                        Material.GREEN_WALL_BANNER,
+-                        Material.LIGHT_BLUE_BANNER,
+-                        Material.LIGHT_BLUE_WALL_BANNER,
+-                        Material.LIGHT_GRAY_BANNER,
+-                        Material.LIGHT_GRAY_WALL_BANNER,
+-                        Material.LIME_BANNER,
+-                        Material.LIME_WALL_BANNER,
+-                        Material.MAGENTA_BANNER,
+-                        Material.MAGENTA_WALL_BANNER,
+-                        Material.ORANGE_BANNER,
+-                        Material.ORANGE_WALL_BANNER,
+-                        Material.PINK_BANNER,
+-                        Material.PINK_WALL_BANNER,
+-                        Material.PURPLE_BANNER,
+-                        Material.PURPLE_WALL_BANNER,
+-                        Material.RED_BANNER,
+-                        Material.RED_WALL_BANNER,
+-                        Material.WHITE_BANNER,
+-                        Material.WHITE_WALL_BANNER,
+-                        Material.YELLOW_BANNER,
+-                        Material.YELLOW_WALL_BANNER
+-                ), CraftBanner.class, CraftBanner::new, BannerBlockEntity::new
+-        );
+-
+-        register(
+-                Arrays.asList(
+-                        Material.SHULKER_BOX,
+-                        Material.WHITE_SHULKER_BOX,
+-                        Material.ORANGE_SHULKER_BOX,
+-                        Material.MAGENTA_SHULKER_BOX,
+-                        Material.LIGHT_BLUE_SHULKER_BOX,
+-                        Material.YELLOW_SHULKER_BOX,
+-                        Material.LIME_SHULKER_BOX,
+-                        Material.PINK_SHULKER_BOX,
+-                        Material.GRAY_SHULKER_BOX,
+-                        Material.LIGHT_GRAY_SHULKER_BOX,
+-                        Material.CYAN_SHULKER_BOX,
+-                        Material.PURPLE_SHULKER_BOX,
+-                        Material.BLUE_SHULKER_BOX,
+-                        Material.BROWN_SHULKER_BOX,
+-                        Material.GREEN_SHULKER_BOX,
+-                        Material.RED_SHULKER_BOX,
+-                        Material.BLACK_SHULKER_BOX
+-                ), CraftShulkerBox.class, CraftShulkerBox::new, ShulkerBoxBlockEntity::new
+-        );
+-
+-        register(
+-                Arrays.asList(
+-                        Material.BLACK_BED,
+-                        Material.BLUE_BED,
+-                        Material.BROWN_BED,
+-                        Material.CYAN_BED,
+-                        Material.GRAY_BED,
+-                        Material.GREEN_BED,
+-                        Material.LIGHT_BLUE_BED,
+-                        Material.LIGHT_GRAY_BED,
+-                        Material.LIME_BED,
+-                        Material.MAGENTA_BED,
+-                        Material.ORANGE_BED,
+-                        Material.PINK_BED,
+-                        Material.PURPLE_BED,
+-                        Material.RED_BED,
+-                        Material.WHITE_BED,
+-                        Material.YELLOW_BED
+-                ), CraftBed.class, CraftBed::new, BedBlockEntity::new
+-        );
+-
+-        register(
+-                Arrays.asList(
+-                        Material.BEEHIVE,
+-                        Material.BEE_NEST
+-                ), CraftBeehive.class, CraftBeehive::new, BeehiveBlockEntity::new
+-        );
+-
+-        register(
+-                Arrays.asList(
+-                        Material.CAMPFIRE,
+-                        Material.SOUL_CAMPFIRE
+-                ), CraftCampfire.class, CraftCampfire::new, CampfireBlockEntity::new
+-        );
+-
+-        register(Material.BARREL, CraftBarrel.class, CraftBarrel::new, BarrelBlockEntity::new);
+-        register(Material.BEACON, CraftBeacon.class, CraftBeacon::new, BeaconBlockEntity::new);
+-        register(Material.BELL, CraftBell.class, CraftBell::new, BellBlockEntity::new);
+-        register(Material.BLAST_FURNACE, CraftBlastFurnace.class, CraftBlastFurnace::new, BlastFurnaceBlockEntity::new);
+-        register(Material.BREWING_STAND, CraftBrewingStand.class, CraftBrewingStand::new, BrewingStandBlockEntity::new);
+-        register(Material.CHEST, CraftChest.class, CraftChest::new, ChestBlockEntity::new);
+-        register(Material.CHISELED_BOOKSHELF, CraftChiseledBookshelf.class, CraftChiseledBookshelf::new, ChiseledBookShelfBlockEntity::new);
+-        register(Material.COMPARATOR, CraftComparator.class, CraftComparator::new, ComparatorBlockEntity::new);
+-        register(Material.CONDUIT, CraftConduit.class, CraftConduit::new, ConduitBlockEntity::new);
+-        register(Material.DAYLIGHT_DETECTOR, CraftDaylightDetector.class, CraftDaylightDetector::new, DaylightDetectorBlockEntity::new);
+-        register(Material.DECORATED_POT, CraftDecoratedPot.class, CraftDecoratedPot::new, DecoratedPotBlockEntity::new);
+-        register(Material.DISPENSER, CraftDispenser.class, CraftDispenser::new, DispenserBlockEntity::new);
+-        register(Material.DROPPER, CraftDropper.class, CraftDropper::new, DropperBlockEntity::new);
+-        register(Material.ENCHANTING_TABLE, CraftEnchantingTable.class, CraftEnchantingTable::new, EnchantmentTableBlockEntity::new);
+-        register(Material.ENDER_CHEST, CraftEnderChest.class, CraftEnderChest::new, EnderChestBlockEntity::new);
+-        register(Material.END_GATEWAY, CraftEndGateway.class, CraftEndGateway::new, TheEndGatewayBlockEntity::new);
+-        register(Material.END_PORTAL, CraftEndPortal.class, CraftEndPortal::new, TheEndPortalBlockEntity::new);
+-        register(Material.FURNACE, CraftFurnaceFurnace.class, CraftFurnaceFurnace::new, FurnaceBlockEntity::new);
+-        register(Material.HOPPER, CraftHopper.class, CraftHopper::new, HopperBlockEntity::new);
+-        register(Material.JIGSAW, CraftJigsaw.class, CraftJigsaw::new, JigsawBlockEntity::new);
+-        register(Material.JUKEBOX, CraftJukebox.class, CraftJukebox::new, JukeboxBlockEntity::new);
+-        register(Material.LECTERN, CraftLectern.class, CraftLectern::new, LecternBlockEntity::new);
+-        register(Material.MOVING_PISTON, CraftMovingPiston.class, CraftMovingPiston::new, PistonMovingBlockEntity::new);
+-        register(Material.SCULK_CATALYST, CraftSculkCatalyst.class, CraftSculkCatalyst::new, SculkCatalystBlockEntity::new);
+-        register(Material.CALIBRATED_SCULK_SENSOR, CraftCalibratedSculkSensor.class, CraftCalibratedSculkSensor::new, CalibratedSculkSensorBlockEntity::new);
+-        register(Material.SCULK_SENSOR, CraftSculkSensor.class, CraftSculkSensor::new, SculkSensorBlockEntity::new);
+-        register(Material.SCULK_SHRIEKER, CraftSculkShrieker.class, CraftSculkShrieker::new, SculkShriekerBlockEntity::new);
+-        register(Material.SMOKER, CraftSmoker.class, CraftSmoker::new, SmokerBlockEntity::new);
+-        register(Material.SPAWNER, CraftCreatureSpawner.class, CraftCreatureSpawner::new, SpawnerBlockEntity::new);
+-        register(Material.STRUCTURE_BLOCK, CraftStructureBlock.class, CraftStructureBlock::new, StructureBlockEntity::new);
+-        register(Material.SUSPICIOUS_SAND, CraftSuspiciousSand.class, CraftSuspiciousSand::new, BrushableBlockEntity::new);
+-        register(Material.SUSPICIOUS_GRAVEL, CraftBrushableBlock.class, CraftBrushableBlock::new, BrushableBlockEntity::new);
+-        register(Material.TRAPPED_CHEST, CraftChest.class, CraftChest::new, TrappedChestBlockEntity::new);
+        // Paper start - simplify
+        register(BlockEntityType.SIGN, CraftSign.class, CraftSign::new);
+        register(BlockEntityType.HANGING_SIGN, CraftHangingSign.class, CraftHangingSign::new);
+        register(BlockEntityType.SKULL, CraftSkull.class, CraftSkull::new);
+        register(BlockEntityType.COMMAND_BLOCK, CraftCommandBlock.class, CraftCommandBlock::new);
+        register(BlockEntityType.BANNER, CraftBanner.class, CraftBanner::new);
+        register(BlockEntityType.SHULKER_BOX, CraftShulkerBox.class, CraftShulkerBox::new);
+        register(BlockEntityType.BED, CraftBed.class, CraftBed::new);
+        register(BlockEntityType.BEEHIVE, CraftBeehive.class, CraftBeehive::new);
+        register(BlockEntityType.CAMPFIRE, CraftCampfire.class, CraftCampfire::new);
+        register(BlockEntityType.BARREL, CraftBarrel.class, CraftBarrel::new);
+        register(BlockEntityType.BEACON, CraftBeacon.class, CraftBeacon::new);
+        register(BlockEntityType.BELL, CraftBell.class, CraftBell::new);
+        register(BlockEntityType.BLAST_FURNACE, CraftBlastFurnace.class, CraftBlastFurnace::new);
+        register(BlockEntityType.BREWING_STAND, CraftBrewingStand.class, CraftBrewingStand::new);
+        register(BlockEntityType.CHEST, CraftChest.class, CraftChest::new);
+        register(BlockEntityType.CHISELED_BOOKSHELF, CraftChiseledBookshelf.class, CraftChiseledBookshelf::new);
+        register(BlockEntityType.COMPARATOR, CraftComparator.class, CraftComparator::new);
+        register(BlockEntityType.CONDUIT, CraftConduit.class, CraftConduit::new);
+        register(BlockEntityType.DAYLIGHT_DETECTOR, CraftDaylightDetector.class, CraftDaylightDetector::new);
+        register(BlockEntityType.DECORATED_POT, CraftDecoratedPot.class, CraftDecoratedPot::new);
+        register(BlockEntityType.DISPENSER, CraftDispenser.class, CraftDispenser::new);
+        register(BlockEntityType.DROPPER, CraftDropper.class, CraftDropper::new);
+        register(BlockEntityType.ENCHANTING_TABLE, CraftEnchantingTable.class, CraftEnchantingTable::new);
+        register(BlockEntityType.ENDER_CHEST, CraftEnderChest.class, CraftEnderChest::new);
+        register(BlockEntityType.END_GATEWAY, CraftEndGateway.class, CraftEndGateway::new);
+        register(BlockEntityType.END_PORTAL, CraftEndPortal.class, CraftEndPortal::new);
+        register(BlockEntityType.FURNACE, CraftFurnaceFurnace.class, CraftFurnaceFurnace::new);
+        register(BlockEntityType.HOPPER, CraftHopper.class, CraftHopper::new);
+        register(BlockEntityType.JIGSAW, CraftJigsaw.class, CraftJigsaw::new);
+        register(BlockEntityType.JUKEBOX, CraftJukebox.class, CraftJukebox::new);
+        register(BlockEntityType.LECTERN, CraftLectern.class, CraftLectern::new);
+        register(BlockEntityType.PISTON, CraftMovingPiston.class, CraftMovingPiston::new);
+        register(BlockEntityType.SCULK_CATALYST, CraftSculkCatalyst.class, CraftSculkCatalyst::new);
+        register(BlockEntityType.SCULK_SENSOR, CraftSculkSensor.class, CraftSculkSensor::new);
+        register(BlockEntityType.SCULK_SHRIEKER, CraftSculkShrieker.class, CraftSculkShrieker::new);
+        register(BlockEntityType.SMOKER, CraftSmoker.class, CraftSmoker::new);
+        register(BlockEntityType.MOB_SPAWNER, CraftCreatureSpawner.class, CraftCreatureSpawner::new);
+        register(BlockEntityType.STRUCTURE_BLOCK, CraftStructureBlock.class, CraftStructureBlock::new);
+        register(BlockEntityType.BRUSHABLE_BLOCK, CraftBrushableBlock.class, CraftBrushableBlock::new); // TODO: HANDLE DIFFERENT MATERIALS....
+        register(BlockEntityType.TRAPPED_CHEST, CraftChest.class, CraftChest::new);
+        // Paper end
+     }
+ 
+     private static void register(Material blockType, BlockStateFactory<?> factory) {
+@@ -339,30 +176,33 @@ public final class CraftBlockStates {
+     }
+ 
+     private static <T extends BlockEntity, B extends CraftBlockEntityState<T>> void register(
+-            Material blockType,
+-            Class<B> blockStateType,
+-            BiFunction<World, T, B> blockStateConstructor,
+-            BiFunction<BlockPos, net.minecraft.world.level.block.state.BlockState, T> tileEntityConstructor
+-    ) {
+-        CraftBlockStates.register(Collections.singletonList(blockType), blockStateType, blockStateConstructor, tileEntityConstructor);
+-    }
+-
+-    private static <T extends BlockEntity, B extends CraftBlockEntityState<T>> void register(
+-            List<Material> blockTypes,
+            net.minecraft.world.level.block.entity.BlockEntityType<? extends T> blockEntityType, // Paper
+             Class<B> blockStateType,
+-            BiFunction<World, T, B> blockStateConstructor,
+-            BiFunction<BlockPos, net.minecraft.world.level.block.state.BlockState, T> tileEntityConstructor
+            BiFunction<World, T, B> blockStateConstructor // Paper
+     ) {
+-        BlockStateFactory<B> factory = new BlockEntityStateFactory<>(blockStateType, blockStateConstructor, tileEntityConstructor);
+-        for (Material blockType : blockTypes) {
+-            CraftBlockStates.register(blockType, factory);
+        // Paper start
+        BlockStateFactory<B> factory = new BlockEntityStateFactory<>(blockStateType, blockStateConstructor, blockEntityType::create);
+        for (net.minecraft.world.level.block.Block block : blockEntityType.validBlocks) {
+            CraftBlockStates.register(CraftMagicNumbers.getMaterial(block), factory);
+         }
+        CraftBlockStates.register(blockEntityType, factory);
+        // Paper end
+     }
+ 
+     private static BlockStateFactory<?> getFactory(Material material) {
+         return CraftBlockStates.FACTORIES.getOrDefault(material, DEFAULT_FACTORY);
+     }
+ 
+    // Paper start
+    private static BlockStateFactory<?> getFactory(Material material, BlockEntityType<?> type) {
+        if (type != null) {
+            return CraftBlockStates.FACTORIES_BY_BLOCK_ENTITY_TYPE.getOrDefault(type, getFactory(material));
+        } else {
+            return getFactory(material);
+        }
+    }
+    // Paper end
+
+     public static Class<? extends CraftBlockState> getBlockStateType(Material material) {
+         Preconditions.checkNotNull(material, "material is null");
+         return CraftBlockStates.getFactory(material).blockStateType;
+@@ -378,6 +218,13 @@ public final class CraftBlockStates {
+         return null;
+     }
+ 
+    // Paper start
+    public static Class<? extends CraftBlockState> getBlockStateType(BlockEntityType<?> blockEntityType) {
+        Preconditions.checkNotNull(blockEntityType, "blockEntityType is null");
+        return CraftBlockStates.getFactory(null, blockEntityType).blockStateType;
+    }
+    // Paper end
+
+     public static BlockState getBlockState(Block block) {
+         // Paper start
+         return CraftBlockStates.getBlockState(block, true);
+@@ -435,7 +282,7 @@ public final class CraftBlockStates {
+         if (world != null && tileEntity == null && CraftBlockStates.isTileEntityOptional(material)) {
+             factory = CraftBlockStates.DEFAULT_FACTORY;
+         } else {
+-            factory = CraftBlockStates.getFactory(material);
+            factory = CraftBlockStates.getFactory(material, tileEntity != null ? tileEntity.getType() : null); // Paper
+         }
+         return factory.createBlockState(world, blockPosition, blockData, tileEntity);
+     }
+diff --git a/src/test/java/org/bukkit/craftbukkit/block/BlockStateTest.java b/src/test/java/org/bukkit/craftbukkit/block/BlockStateTest.java
+index a6dbd1919bce5b5092666372f4cc31d2e2190c42..04710abbfb50eaa6e3e4d96fca5f0355f940a452 100644
+--- a/src/test/java/org/bukkit/craftbukkit/block/BlockStateTest.java
+++ b/src/test/java/org/bukkit/craftbukkit/block/BlockStateTest.java
+@@ -45,4 +45,11 @@ public class BlockStateTest extends AbstractTestingBase {
+             }
+         }
+     }
+
+    @Test
+    public void testBlockEntityTypes() {
+        for (var blockEntityType : BuiltInRegistries.BLOCK_ENTITY_TYPE) {
+            org.junit.Assert.assertNotNull(CraftBlockStates.getBlockStateType(blockEntityType));
+        }
+    }
+ }
--- a/patches/server/0718-Add-config-option-for-logging-player-ip-addresses.patch
+++ b/patches/server/0718-Add-config-option-for-logging-player-ip-addresses.patch
@ -0,0 +1,61 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Noah van der Aa <ndvdaa@gmail.com>
+Date: Tue, 5 Oct 2021 20:04:21 +0200
+Subject: [PATCH] Add config option for logging player ip addresses
+
+
+diff --git a/src/main/java/net/minecraft/server/network/LegacyQueryHandler.java b/src/main/java/net/minecraft/server/network/LegacyQueryHandler.java
+index 21393ad40095a4049e5b6871169b2db7aa92d13c..e6553b936dac1eb25a310d1a33acb0b1a5e646d2 100644
+--- a/src/main/java/net/minecraft/server/network/LegacyQueryHandler.java
+++ b/src/main/java/net/minecraft/server/network/LegacyQueryHandler.java
+@@ -185,7 +185,7 @@ public class LegacyQueryHandler extends ChannelInboundHandlerAdapter {
+         buf.release();
+         this.buf = null;
+ 
+-        LOGGER.debug("Ping: (1.6) from {}", ctx.channel().remoteAddress());
+        LOGGER.debug("Ping: (1.6) from {}", io.papermc.paper.configuration.GlobalConfiguration.get().logging.logPlayerIpAddresses ? ctx.channel().remoteAddress() : "<ip address withheld>"); // Paper
+ 
+         InetSocketAddress virtualHost = com.destroystokyo.paper.network.PaperNetworkClient.prepareVirtualHost(host, port);
+         com.destroystokyo.paper.event.server.PaperServerListPingEvent event = com.destroystokyo.paper.network.PaperLegacyStatusClient.processRequest(
+diff --git a/src/main/java/net/minecraft/server/network/ServerConnectionListener.java b/src/main/java/net/minecraft/server/network/ServerConnectionListener.java
+index 14f037e721ac8ba885536cab43d3d398b011a397..17f42a4097d9c91bae2ccb02365498a0f7c7f8f8 100644
+--- a/src/main/java/net/minecraft/server/network/ServerConnectionListener.java
+++ b/src/main/java/net/minecraft/server/network/ServerConnectionListener.java
+@@ -204,7 +204,7 @@ public class ServerConnectionListener {
+                                 throw new ReportedException(CrashReport.forThrowable(exception, "Ticking memory connection"));
+                             }
+ 
+-                            ServerConnectionListener.LOGGER.warn("Failed to handle packet for {}", networkmanager.getRemoteAddress(), exception);
+                            ServerConnectionListener.LOGGER.warn("Failed to handle packet for {}", io.papermc.paper.configuration.GlobalConfiguration.get().logging.logPlayerIpAddresses ? String.valueOf(networkmanager.getRemoteAddress()) : "<ip address withheld>", exception); // Paper
+                             MutableComponent ichatmutablecomponent = Component.literal("Internal server error");
+ 
+                             networkmanager.send(new ClientboundDisconnectPacket(ichatmutablecomponent), PacketSendListener.thenRun(() -> {
+diff --git a/src/main/java/net/minecraft/server/network/ServerLoginPacketListenerImpl.java b/src/main/java/net/minecraft/server/network/ServerLoginPacketListenerImpl.java
+index 595779cfd0ee1c405d7936f00a7cae1706125e7f..ed3af916dfa875dd0a5f1e730d20d11efd6419c6 100644
+--- a/src/main/java/net/minecraft/server/network/ServerLoginPacketListenerImpl.java
+++ b/src/main/java/net/minecraft/server/network/ServerLoginPacketListenerImpl.java
+@@ -206,7 +206,10 @@ public class ServerLoginPacketListenerImpl implements ServerLoginPacketListener,
+     }
+ 
+     public String getUserName() {
+-        return this.gameProfile != null ? this.gameProfile + " (" + this.connection.getRemoteAddress() + ")" : String.valueOf(this.connection.getRemoteAddress());
+        // Paper start
+        String ip = io.papermc.paper.configuration.GlobalConfiguration.get().logging.logPlayerIpAddresses ? String.valueOf(this.connection.getRemoteAddress()) : "<ip address withheld>";
+        return this.gameProfile != null ? this.gameProfile + " (" + ip + ")" : String.valueOf(ip);
+        // Paper end
+     }
+ 
+     @Override
+diff --git a/src/main/java/net/minecraft/server/players/PlayerList.java b/src/main/java/net/minecraft/server/players/PlayerList.java
+index 348265d5686072d625d694a5a3cdbe3060c950f7..5f957a28e9d30144f724ebdc581d5f0b80bf6dc1 100644
+--- a/src/main/java/net/minecraft/server/players/PlayerList.java
+++ b/src/main/java/net/minecraft/server/players/PlayerList.java
+@@ -255,7 +255,7 @@ public abstract class PlayerList {
+         String s1 = "local";
+ 
+         if (connection.getRemoteAddress() != null) {
+-            s1 = connection.getRemoteAddress().toString();
+            s1 = io.papermc.paper.configuration.GlobalConfiguration.get().logging.logPlayerIpAddresses ? connection.getRemoteAddress().toString() : "<ip address withheld>"; // Paper
+         }
+ 
+         // Spigot start - spawn location event
--- a/patches/server/0719-Configurable-feature-seeds.patch
+++ b/patches/server/0719-Configurable-feature-seeds.patch
@ -0,0 +1,40 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Nassim Jahnke <nassim@njahnke.dev>
+Date: Tue, 31 Aug 2021 17:05:27 +0200
+Subject: [PATCH] Configurable feature seeds
+
+Co-authored-by: Thonk <30448663+ExcessiveAmountsOfZombies@users.noreply.github.com>
+
+diff --git a/src/main/java/co/aikar/timings/TimingsExport.java b/src/main/java/co/aikar/timings/TimingsExport.java
+index 1080e1f67afe5574baca0df50cdb1d029a7a586a..a2f71a6d1a9e98133dff6cd0f625da9435a8af14 100644
+--- a/src/main/java/co/aikar/timings/TimingsExport.java
+++ b/src/main/java/co/aikar/timings/TimingsExport.java
+@@ -288,7 +288,7 @@ public class TimingsExport extends Thread {
+         JSONObject object = new JSONObject();
+         for (String key : config.getKeys(false)) {
+             String fullKey = (parentKey != null ? parentKey + "." + key : key);
+-            if (fullKey.equals("database") || fullKey.equals("settings.bungeecord-addresses") || TimingsManager.hiddenConfigs.contains(fullKey) || key.startsWith("seed-") || key.equals("worldeditregentempworld")) {
+            if (fullKey.equals("database") || fullKey.equals("settings.bungeecord-addresses") || TimingsManager.hiddenConfigs.contains(fullKey) || key.startsWith("seed-") || key.equals("worldeditregentempworld") || key.equals("feature-seeds")) {
+                 continue;
+             }
+             final Object val = config.get(key);
+diff --git a/src/main/java/net/minecraft/world/level/chunk/ChunkGenerator.java b/src/main/java/net/minecraft/world/level/chunk/ChunkGenerator.java
+index 354d386940b5ee7c92708390b83db51c281660f4..31955f62253feb111239247c4f8c2215b3080c1d 100644
+--- a/src/main/java/net/minecraft/world/level/chunk/ChunkGenerator.java
+++ b/src/main/java/net/minecraft/world/level/chunk/ChunkGenerator.java
+@@ -431,7 +431,14 @@ public abstract class ChunkGenerator {
+                                 return (String) optional.orElseGet(placedfeature::toString);
+                             };
+ 
+-                            seededrandom.setFeatureSeed(i, l1, l);
+                            // Paper start - change populationSeed used in random
+                            long featurePopulationSeed = i;
+                            final long configFeatureSeed = generatoraccessseed.getMinecraftWorld().paperConfig().featureSeeds.features.getLong(placedfeature.feature());
+                            if (configFeatureSeed != -1) {
+                                featurePopulationSeed = seededrandom.setDecorationSeed(configFeatureSeed, blockposition.getX(), blockposition.getZ()); // See seededrandom.setDecorationSeed from above
+                            }
+                            seededrandom.setFeatureSeed(featurePopulationSeed, l1, l);
+                            // Paper end
+ 
+                             try {
+                                 generatoraccessseed.setCurrentlyGenerating(supplier1);
--- a/patches/server/0720-VanillaCommandWrapper-didnt-account-for-entity-sende.patch
+++ b/patches/server/0720-VanillaCommandWrapper-didnt-account-for-entity-sende.patch
@ -0,0 +1,23 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Jake Potrebic <jake.m.potrebic@gmail.com>
+Date: Fri, 10 Sep 2021 15:49:12 -0700
+Subject: [PATCH] VanillaCommandWrapper didnt account for entity senders
+
+
+diff --git a/src/main/java/org/bukkit/craftbukkit/command/VanillaCommandWrapper.java b/src/main/java/org/bukkit/craftbukkit/command/VanillaCommandWrapper.java
+index 8dca2ad7d25f740941187698d77819af8ebc2805..6df44aa60d2b41b95fe79ed4cf92a6d3369400ea 100644
+--- a/src/main/java/org/bukkit/craftbukkit/command/VanillaCommandWrapper.java
+++ b/src/main/java/org/bukkit/craftbukkit/command/VanillaCommandWrapper.java
+@@ -64,8 +64,10 @@ public final class VanillaCommandWrapper extends BukkitCommand {
+     }
+ 
+     public static CommandSourceStack getListener(CommandSender sender) {
+-        if (sender instanceof Player) {
+-            return ((CraftPlayer) sender).getHandle().createCommandSourceStack();
+        // Paper start - account for other entity command senders
+        if (sender instanceof org.bukkit.craftbukkit.entity.CraftEntity craftEntity) {
+            return craftEntity.getHandle().createCommandSourceStack();
+        // Paper end
+         }
+         if (sender instanceof BlockCommandSender) {
+             return ((CraftBlockCommandSender) sender).getWrapper();
--- a/patches/server/0721-Add-root-admin-user-detection.patch
+++ b/patches/server/0721-Add-root-admin-user-detection.patch
@ -0,0 +1,79 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: egg82 <eggys82@gmail.com>
+Date: Sat, 11 Sep 2021 22:55:14 +0200
+Subject: [PATCH] Add root/admin user detection
+
+This patch detects whether or not the server is currently executing as a privileged user and spits out a warning.
+The warning serves as a sort-of PSA for newer server admins who don't understand the risks of running as root.
+We've seen plenty of bad/malicious plugins hit markets, and there's been a few close-calls with exploits in the past.
+Hopefully this helps mitigate some potential damage to servers, even if it is just a warning.
+
+Co-authored-by: Noah van der Aa <ndvdaa@gmail.com>
+
+diff --git a/src/main/java/io/papermc/paper/util/ServerEnvironment.java b/src/main/java/io/papermc/paper/util/ServerEnvironment.java
+new file mode 100644
+index 0000000000000000000000000000000000000000..6bd0afddbcc461149dfe9a5c7a86fff6ea13a5f1
+--- /dev/null
+++ b/src/main/java/io/papermc/paper/util/ServerEnvironment.java
+@@ -0,0 +1,40 @@
+package io.papermc.paper.util;
+
+import com.sun.security.auth.module.NTSystem;
+import com.sun.security.auth.module.UnixSystem;
+import org.apache.commons.lang.SystemUtils;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.util.Set;
+
+public class ServerEnvironment {
+    private static final boolean RUNNING_AS_ROOT_OR_ADMIN;
+    private static final String WINDOWS_HIGH_INTEGRITY_LEVEL = "S-1-16-12288";
+
+    static {
+        if (SystemUtils.IS_OS_WINDOWS) {
+            RUNNING_AS_ROOT_OR_ADMIN = Set.of(new NTSystem().getGroupIDs()).contains(WINDOWS_HIGH_INTEGRITY_LEVEL);
+        } else {
+            boolean isRunningAsRoot = false;
+            if (new UnixSystem().getUid() == 0) {
+                // Due to an OpenJDK bug (https://bugs.openjdk.java.net/browse/JDK-8274721), UnixSystem#getUid incorrectly
+                // returns 0 when the user doesn't have a username. Because of this, we'll have to double-check if the user ID is
+                // actually 0 by running the id -u command.
+                try {
+                    Process process = new ProcessBuilder("id", "-u").start();
+                    process.waitFor();
+                    InputStream inputStream = process.getInputStream();
+                    isRunningAsRoot = new String(inputStream.readAllBytes()).trim().equals("0");
+                } catch (InterruptedException | IOException ignored) {
+                    isRunningAsRoot = false;
+                }
+            }
+            RUNNING_AS_ROOT_OR_ADMIN = isRunningAsRoot;
+        }
+    }
+
+    public static boolean userIsRootOrAdmin() {
+        return RUNNING_AS_ROOT_OR_ADMIN;
+    }
+}
+diff --git a/src/main/java/net/minecraft/server/dedicated/DedicatedServer.java b/src/main/java/net/minecraft/server/dedicated/DedicatedServer.java
+index 4757d6432631f0c5379597b40fda169ac7cd8621..9951e999b1440ef623f14bdd46b5e42a90387f1e 100644
+--- a/src/main/java/net/minecraft/server/dedicated/DedicatedServer.java
+++ b/src/main/java/net/minecraft/server/dedicated/DedicatedServer.java
+@@ -179,6 +179,16 @@ public class DedicatedServer extends MinecraftServer implements ServerInterface
+             DedicatedServer.LOGGER.warn("To start the server with more ram, launch it as \"java -Xmx1024M -Xms1024M -jar minecraft_server.jar\"");
+         }
+ 
+        // Paper start - detect running as root
+        if (io.papermc.paper.util.ServerEnvironment.userIsRootOrAdmin()) {
+            DedicatedServer.LOGGER.warn("****************************");
+            DedicatedServer.LOGGER.warn("YOU ARE RUNNING THIS SERVER AS AN ADMINISTRATIVE OR ROOT USER. THIS IS NOT ADVISED.");
+            DedicatedServer.LOGGER.warn("YOU ARE OPENING YOURSELF UP TO POTENTIAL RISKS WHEN DOING THIS.");
+            DedicatedServer.LOGGER.warn("FOR MORE INFORMATION, SEE https://madelinemiller.dev/blog/root-minecraft-server/");
+            DedicatedServer.LOGGER.warn("****************************");
+        }
+        // Paper end
+
+         DedicatedServer.LOGGER.info("Loading properties");
+         DedicatedServerProperties dedicatedserverproperties = this.settings.getProperties();
+ 
--- a/patches/server/0722-Always-allow-item-changing-in-Fireball.patch
+++ b/patches/server/0722-Always-allow-item-changing-in-Fireball.patch
@ -0,0 +1,19 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Owen1212055 <23108066+Owen1212055@users.noreply.github.com>
+Date: Mon, 21 Jun 2021 22:12:53 -0400
+Subject: [PATCH] Always allow item changing in Fireball
+
+
+diff --git a/src/main/java/net/minecraft/world/entity/projectile/Fireball.java b/src/main/java/net/minecraft/world/entity/projectile/Fireball.java
+index 307f545b79f01e22b1ffa9e41a0d353b3fa6a21d..58ea1fdc8dd5eb48d9642edecbbba1751e7037b6 100644
+--- a/src/main/java/net/minecraft/world/entity/projectile/Fireball.java
+++ b/src/main/java/net/minecraft/world/entity/projectile/Fireball.java
+@@ -27,7 +27,7 @@ public abstract class Fireball extends AbstractHurtingProjectile implements Item
+     }
+ 
+     public void setItem(ItemStack stack) {
+-        if (!stack.is(Items.FIRE_CHARGE) || stack.hasTag()) {
+        if (true || !stack.is(Items.FIRE_CHARGE) || stack.hasTag()) { // Paper - always allow item changing
+             this.getEntityData().set(Fireball.DATA_ITEM_STACK, stack.copyWithCount(1));
+         }
+ 
--- a/patches/server/0723-don-t-attempt-to-teleport-dead-entities.patch
+++ b/patches/server/0723-don-t-attempt-to-teleport-dead-entities.patch
@ -0,0 +1,19 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: sulu5890 <sulu@sulu.me>
+Date: Sun, 24 Oct 2021 22:48:14 -0500
+Subject: [PATCH] don't attempt to teleport dead entities
+
+
+diff --git a/src/main/java/net/minecraft/world/entity/Entity.java b/src/main/java/net/minecraft/world/entity/Entity.java
+index d776c95e7c0752cdfcc44fb17509d5dc8605d8a8..6068d70f5eb566396d8c6bf6137e2c6cf21e33cf 100644
+--- a/src/main/java/net/minecraft/world/entity/Entity.java
+++ b/src/main/java/net/minecraft/world/entity/Entity.java
+@@ -754,7 +754,7 @@ public abstract class Entity implements Nameable, EntityAccess, CommandSource {
+     // CraftBukkit start
+     public void postTick() {
+         // No clean way to break out of ticking once the entity has been copied to a new world, so instead we move the portalling later in the tick cycle
+-        if (!(this instanceof ServerPlayer)) {
+        if (!(this instanceof ServerPlayer) && this.isAlive()) { // Paper - don't attempt to teleport dead entities
+             this.handleNetherPortal();
+         }
+     }
--- a/patches/server/0724-Prevent-excessive-velocity-through-repeated-crits.patch
+++ b/patches/server/0724-Prevent-excessive-velocity-through-repeated-crits.patch
@ -0,0 +1,37 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Nassim Jahnke <nassim@njahnke.dev>
+Date: Thu, 25 Nov 2021 10:25:09 +0100
+Subject: [PATCH] Prevent excessive velocity through repeated crits
+
+
+diff --git a/src/main/java/net/minecraft/world/entity/LivingEntity.java b/src/main/java/net/minecraft/world/entity/LivingEntity.java
+index dffce1de1254f0194db2f28b797155846d3beeb0..8b01e2fb891339867256ae45a5178af0beadc8cb 100644
+--- a/src/main/java/net/minecraft/world/entity/LivingEntity.java
+++ b/src/main/java/net/minecraft/world/entity/LivingEntity.java
+@@ -2655,13 +2655,26 @@ public abstract class LivingEntity extends Entity implements Attackable {
+         return this.hasEffect(MobEffects.JUMP) ? 0.1F * ((float) this.getEffect(MobEffects.JUMP).getAmplifier() + 1.0F) : 0.0F;
+     }
+ 
+    protected long lastJumpTime = 0L; // Paper
+     protected void jumpFromGround() {
+         Vec3 vec3d = this.getDeltaMovement();
+        // Paper start
+        long time = System.nanoTime();
+        boolean canCrit = true;
+        if (this instanceof net.minecraft.world.entity.player.Player) {
+            canCrit = false;
+            if (time - this.lastJumpTime > (long)(0.250e9)) {
+                this.lastJumpTime = time;
+                canCrit = true;
+            }
+        }
+        // Paper end
+ 
+         this.setDeltaMovement(vec3d.x, (double) this.getJumpPower(), vec3d.z);
+         if (this.isSprinting()) {
+             float f = this.getYRot() * 0.017453292F;
+ 
+            if (canCrit) // Paper
+             this.setDeltaMovement(this.getDeltaMovement().add((double) (-Mth.sin(f) * 0.2F), 0.0D, (double) (Mth.cos(f) * 0.2F)));
+         }
+ 
--- a/patches/server/0725-Remove-client-side-code-using-deprecated-for-removal.patch
+++ b/patches/server/0725-Remove-client-side-code-using-deprecated-for-removal.patch
@ -0,0 +1,31 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Jason Penilla <11360596+jpenilla@users.noreply.github.com>
+Date: Fri, 26 Nov 2021 15:09:58 -0800
+Subject: [PATCH] Remove client-side code using deprecated for removal
+ AccessController
+
+Fixes warnings on build
+
+diff --git a/src/main/java/net/minecraft/Util.java b/src/main/java/net/minecraft/Util.java
+index fcade0a121f155dbf4f5f8af66240923d8da460d..c60c73d9f998260f3abe6fe445255c6e7c38b0c3 100644
+--- a/src/main/java/net/minecraft/Util.java
+++ b/src/main/java/net/minecraft/Util.java
+@@ -909,17 +909,7 @@ public class Util {
+         }
+ 
+         public void openUrl(URL url) {
+-            try {
+-                Process process = AccessController.doPrivileged((PrivilegedExceptionAction<Process>)(() -> {
+-                    return Runtime.getRuntime().exec(this.getOpenUrlArguments(url));
+-                }));
+-                process.getInputStream().close();
+-                process.getErrorStream().close();
+-                process.getOutputStream().close();
+-            } catch (IOException | PrivilegedActionException var3) {
+-                Util.LOGGER.error("Couldn't open url '{}'", url, var3);
+-            }
+-
+            throw new IllegalStateException("This method is not useful on dedicated servers."); // Paper
+         }
+ 
+         public void openUri(URI uri) {
--- a/patches/server/0726-Fix-removing-recipes-from-RecipeIterator.patch
+++ b/patches/server/0726-Fix-removing-recipes-from-RecipeIterator.patch
@ -0,0 +1,51 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Jake <jake.m.potrebic@gmail.com>
+Date: Tue, 30 Nov 2021 12:01:56 -0800
+Subject: [PATCH] Fix removing recipes from RecipeIterator
+
+== AT ==
+public net.minecraft.world.item.crafting.RecipeManager byName
+
+diff --git a/src/main/java/org/bukkit/craftbukkit/inventory/RecipeIterator.java b/src/main/java/org/bukkit/craftbukkit/inventory/RecipeIterator.java
+index 24f336c89b548c5ba2a95372db0d7c83b5c4ec47..91895c639c33a1cafd2a35bab7b5fd83e558468d 100644
+--- a/src/main/java/org/bukkit/craftbukkit/inventory/RecipeIterator.java
+++ b/src/main/java/org/bukkit/craftbukkit/inventory/RecipeIterator.java
+@@ -11,6 +11,7 @@ import org.bukkit.inventory.Recipe;
+ public class RecipeIterator implements Iterator<Recipe> {
+     private final Iterator<Map.Entry<RecipeType<?>, Object2ObjectLinkedOpenHashMap<ResourceLocation, net.minecraft.world.item.crafting.Recipe<?>>>> recipes;
+     private Iterator<net.minecraft.world.item.crafting.Recipe<?>> current;
+    private Recipe currentRecipe; // Paper - fix removing recipes
+ 
+     public RecipeIterator() {
+         this.recipes = MinecraftServer.getServer().getRecipeManager().recipes.entrySet().iterator();
+@@ -34,10 +35,16 @@ public class RecipeIterator implements Iterator<Recipe> {
+     public Recipe next() {
+         if (this.current == null || !this.current.hasNext()) {
+             this.current = this.recipes.next().getValue().values().iterator();
+-            return this.next();
+            // Paper start - fix removing recipes
+            this.currentRecipe = this.next();
+            return this.currentRecipe;
+            // Paper end
+         }
+ 
+-        return this.current.next().toBukkitRecipe();
+        // Paper start - fix removing recipes
+        this.currentRecipe = this.current.next().toBukkitRecipe();
+        return this.currentRecipe;
+        // Paper end
+     }
+ 
+     @Override
+@@ -46,6 +53,11 @@ public class RecipeIterator implements Iterator<Recipe> {
+             throw new IllegalStateException("next() not yet called");
+         }
+ 
+        // Paper start - fix removing recipes
+        if (this.currentRecipe instanceof org.bukkit.Keyed keyed) {
+            MinecraftServer.getServer().getRecipeManager().byName.remove(org.bukkit.craftbukkit.util.CraftNamespacedKey.toMinecraft(keyed.getKey()));
+        }
+        // Paper end
+         this.current.remove();
+     }
+ }
--- a/patches/server/0727-Prevent-sending-oversized-item-data-in-equipment-and.patch
+++ b/patches/server/0727-Prevent-sending-oversized-item-data-in-equipment-and.patch
@ -0,0 +1,86 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Nassim Jahnke <nassim@njahnke.dev>
+Date: Wed, 1 Dec 2021 12:36:25 +0100
+Subject: [PATCH] Prevent sending oversized item data in equipment and metadata
+
+
+diff --git a/src/main/java/net/minecraft/network/syncher/EntityDataSerializers.java b/src/main/java/net/minecraft/network/syncher/EntityDataSerializers.java
+index 97da8896865ff0bdd4fe8f2155b0830b42051bb1..17d0519ce3c097a38f9867fff3e1c25eb7febb59 100644
+--- a/src/main/java/net/minecraft/network/syncher/EntityDataSerializers.java
+++ b/src/main/java/net/minecraft/network/syncher/EntityDataSerializers.java
+@@ -42,7 +42,7 @@ public class EntityDataSerializers {
+     public static final EntityDataSerializer<ItemStack> ITEM_STACK = new EntityDataSerializer<ItemStack>() {
+         @Override
+         public void write(FriendlyByteBuf buf, ItemStack value) {
+-            buf.writeItem(value);
+            buf.writeItem(net.minecraft.world.entity.LivingEntity.sanitizeItemStack(value, false)); // Paper - prevent oversized data
+         }
+ 
+         @Override
+diff --git a/src/main/java/net/minecraft/server/level/ServerEntity.java b/src/main/java/net/minecraft/server/level/ServerEntity.java
+index 09f6948a52721b27ccd7c761a7efd09bfd7a183c..71a8812365503d840f6702a21d504a37d67c7194 100644
+--- a/src/main/java/net/minecraft/server/level/ServerEntity.java
+++ b/src/main/java/net/minecraft/server/level/ServerEntity.java
+@@ -338,7 +338,10 @@ public class ServerEntity {
+                 ItemStack itemstack = ((LivingEntity) this.entity).getItemBySlot(enumitemslot);
+ 
+                 if (!itemstack.isEmpty()) {
+-                    list.add(Pair.of(enumitemslot, itemstack.copy()));
+                    // Paper start - prevent oversized data
+                    final ItemStack sanitized = LivingEntity.sanitizeItemStack(itemstack.copy(), false);
+                    list.add(Pair.of(enumitemslot, sanitized));
+                    // Paper end
+                 }
+             }
+ 
+diff --git a/src/main/java/net/minecraft/world/entity/LivingEntity.java b/src/main/java/net/minecraft/world/entity/LivingEntity.java
+index 8b01e2fb891339867256ae45a5178af0beadc8cb..8e7fb632e5ab2c2d7c890fcab2133ea431ed0380 100644
+--- a/src/main/java/net/minecraft/world/entity/LivingEntity.java
+++ b/src/main/java/net/minecraft/world/entity/LivingEntity.java
+@@ -3164,7 +3164,10 @@ public abstract class LivingEntity extends Entity implements Attackable {
+         equipmentChanges.forEach((enumitemslot, itemstack) -> {
+             ItemStack itemstack1 = itemstack.copy();
+ 
+-            list.add(Pair.of(enumitemslot, itemstack1));
+            // Paper start - prevent oversized data
+            ItemStack toSend = sanitizeItemStack(itemstack1, true);
+            list.add(Pair.of(enumitemslot, toSend));
+            // Paper end
+             switch (enumitemslot.getType()) {
+                 case HAND:
+                     this.setLastHandItem(enumitemslot, itemstack1);
+@@ -3177,6 +3180,34 @@ public abstract class LivingEntity extends Entity implements Attackable {
+         ((ServerLevel) this.level()).getChunkSource().broadcast(this, new ClientboundSetEquipmentPacket(this.getId(), list));
+     }
+ 
+    // Paper start - prevent oversized data
+    public static ItemStack sanitizeItemStack(final ItemStack itemStack, final boolean copyItemStack) {
+        if (itemStack.isEmpty() || !itemStack.hasTag()) {
+            return itemStack;
+        }
+
+        final ItemStack copy = copyItemStack ? itemStack.copy() : itemStack;
+        final CompoundTag tag = copy.getTag();
+        if (copy.is(Items.BUNDLE) && tag.get("Items") instanceof ListTag oldItems && !oldItems.isEmpty()) {
+            // Bundles change their texture based on their fullness.
+            org.bukkit.inventory.meta.BundleMeta bundleMeta = (org.bukkit.inventory.meta.BundleMeta) copy.asBukkitMirror().getItemMeta();
+            int sizeUsed = 0;
+            for (org.bukkit.inventory.ItemStack item : bundleMeta.getItems()) {
+                int scale = 64 / item.getMaxStackSize();
+                sizeUsed += scale * item.getAmount();
+            }
+            // Now we add a single fake item that uses the same amount of slots as all other items.
+            ListTag items = new ListTag();
+            items.add(new ItemStack(Items.PAPER, sizeUsed).save(new CompoundTag()));
+            tag.put("Items", items);
+        }
+        if (tag.get("BlockEntityTag") instanceof CompoundTag blockEntityTag) {
+            blockEntityTag.remove("Items");
+        }
+        return copy;
+    }
+    // Paper end
+
+     private ItemStack getLastArmorItem(EquipmentSlot slot) {
+         return (ItemStack) this.lastArmorItemStacks.get(slot.getIndex());
+     }
--- a/patches/server/0728-Hide-unnecessary-itemmeta-from-clients.patch
+++ b/patches/server/0728-Hide-unnecessary-itemmeta-from-clients.patch
@ -0,0 +1,118 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Noah van der Aa <ndvdaa@gmail.com>
+Date: Tue, 3 Aug 2021 17:28:27 +0200
+Subject: [PATCH] Hide unnecessary itemmeta from clients
+
+
+diff --git a/src/main/java/net/minecraft/server/level/ServerEntity.java b/src/main/java/net/minecraft/server/level/ServerEntity.java
+index 71a8812365503d840f6702a21d504a37d67c7194..63561c0044375465fa0023b2b563a6516d7fa76c 100644
+--- a/src/main/java/net/minecraft/server/level/ServerEntity.java
+++ b/src/main/java/net/minecraft/server/level/ServerEntity.java
+@@ -340,7 +340,7 @@ public class ServerEntity {
+                 if (!itemstack.isEmpty()) {
+                     // Paper start - prevent oversized data
+                     final ItemStack sanitized = LivingEntity.sanitizeItemStack(itemstack.copy(), false);
+-                    list.add(Pair.of(enumitemslot, sanitized));
+                    list.add(Pair.of(enumitemslot, ((LivingEntity) this.entity).stripMeta(sanitized, false))); // Paper - remove unnecessary item meta
+                     // Paper end
+                 }
+             }
+diff --git a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
+index 2b6e315d275cf5e303663c175745a5fe2e35969f..13e73042653909f194cfc909a96370656cbcf1ca 100644
+--- a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
+++ b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
+@@ -2705,8 +2705,8 @@ public class ServerGamePacketListenerImpl implements ServerPlayerConnection, Tic
+                                 // Refresh the current entity metadata
+                                 entity.getEntityData().refresh(player);
+                                 // SPIGOT-7136 - Allays
+-                                if (entity instanceof Allay) {
+-                                    ServerGamePacketListenerImpl.this.send(new ClientboundSetEquipmentPacket(entity.getId(), Arrays.stream(net.minecraft.world.entity.EquipmentSlot.values()).map((slot) -> Pair.of(slot, ((LivingEntity) entity).getItemBySlot(slot).copy())).collect(Collectors.toList())));
+                                if (entity instanceof Allay allay) { // Paper
+                                    ServerGamePacketListenerImpl.this.send(new ClientboundSetEquipmentPacket(entity.getId(), Arrays.stream(net.minecraft.world.entity.EquipmentSlot.values()).map((slot) -> Pair.of(slot, allay.stripMeta(allay.getItemBySlot(slot), true))).collect(Collectors.toList()))); // Paper - remove unnecessary item meta
+                                     player.containerMenu.sendAllDataToRemote();
+                                 }
+                             }
+diff --git a/src/main/java/net/minecraft/world/entity/LivingEntity.java b/src/main/java/net/minecraft/world/entity/LivingEntity.java
+index 8e7fb632e5ab2c2d7c890fcab2133ea431ed0380..29a8b2bddf4257e74db27bf990c8aa1fd99c341b 100644
+--- a/src/main/java/net/minecraft/world/entity/LivingEntity.java
+++ b/src/main/java/net/minecraft/world/entity/LivingEntity.java
+@@ -3166,7 +3166,7 @@ public abstract class LivingEntity extends Entity implements Attackable {
+ 
+             // Paper start - prevent oversized data
+             ItemStack toSend = sanitizeItemStack(itemstack1, true);
+-            list.add(Pair.of(enumitemslot, toSend));
+            list.add(Pair.of(enumitemslot, stripMeta(toSend, toSend == itemstack1))); // Paper - hide unnecessary item meta
+             // Paper end
+             switch (enumitemslot.getType()) {
+                 case HAND:
+@@ -3180,6 +3180,70 @@ public abstract class LivingEntity extends Entity implements Attackable {
+         ((ServerLevel) this.level()).getChunkSource().broadcast(this, new ClientboundSetEquipmentPacket(this.getId(), list));
+     }
+ 
+    // Paper start - hide unnecessary item meta
+    public ItemStack stripMeta(final ItemStack itemStack, final boolean copyItemStack) {
+        if (itemStack.isEmpty() || (!itemStack.hasTag() && itemStack.getCount() < 2)) {
+            return itemStack;
+        }
+
+        final ItemStack copy = copyItemStack ? itemStack.copy() : itemStack;
+        if (level.paperConfig().anticheat.obfuscation.items.hideDurability) {
+            // Only show damage values for elytra's, since they show a different texture when broken.
+            if (!copy.is(Items.ELYTRA) || copy.getDamageValue() < copy.getMaxDamage() - 1) {
+                copy.setDamageValue(0);
+            }
+        }
+
+        final CompoundTag tag = copy.getTag();
+        if (level.paperConfig().anticheat.obfuscation.items.hideItemmeta) {
+            // Some resource packs show different textures when there is more than one item. Since this shouldn't provide a big advantage,
+            // we'll tell the client if there's one or (more than) two items.
+            copy.setCount(copy.getCount() > 1 ? 2 : 1);
+            // We can't just strip out display, leather helmets still use the display.color tag.
+            if (tag != null) {
+                if (tag.get("display") instanceof CompoundTag displayTag) {
+                    displayTag.remove("Lore");
+                    displayTag.remove("Name");
+                }
+
+                if (tag.get("Enchantments") instanceof ListTag enchantmentsTag && !enchantmentsTag.isEmpty()) {
+                    // The client still renders items with the enchantment glow if the enchantments tag contains at least one (empty) child.
+                    ListTag enchantments = new ListTag();
+                    CompoundTag fakeEnchantment = new CompoundTag();
+                    // Soul speed boots generate client side particles.
+                    if (EnchantmentHelper.getItemEnchantmentLevel(Enchantments.SOUL_SPEED, itemStack) > 0) {
+                        fakeEnchantment.putString("id", org.bukkit.enchantments.Enchantment.SOUL_SPEED.getKey().asString());
+                        fakeEnchantment.putInt("lvl", 1);
+                    }
+                    enchantments.add(fakeEnchantment);
+                    tag.put("Enchantments", enchantments);
+                }
+                tag.remove("AttributeModifiers");
+
+                // Books
+                tag.remove("author");
+                tag.remove("filtered_title");
+                tag.remove("pages");
+                tag.remove("filtered_pages");
+                tag.remove("title");
+                tag.remove("generation");
+            }
+        }
+
+        if (level.paperConfig().anticheat.obfuscation.items.hideItemmetaWithVisualEffects && tag != null) {
+            // Lodestone compasses
+            tag.remove("LodestonePos");
+            if (tag.contains("LodestoneDimension")) {
+                // The client shows the glint if either the position or the dimension is present, so we just wipe
+                // the position and fake the dimension
+                tag.putString("LodestoneDimension", "paper:paper");
+            }
+        }
+
+        return copy;
+    }
+    // Paper end
+
+     // Paper start - prevent oversized data
+     public static ItemStack sanitizeItemStack(final ItemStack itemStack, final boolean copyItemStack) {
+         if (itemStack.isEmpty() || !itemStack.hasTag()) {
--- a/patches/server/0729-Fix-Spigot-growth-modifiers.patch
+++ b/patches/server/0729-Fix-Spigot-growth-modifiers.patch
@ -0,0 +1,125 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Jason Penilla <11360596+jpenilla@users.noreply.github.com>
+Date: Fri, 3 Dec 2021 17:09:24 -0800
+Subject: [PATCH] Fix Spigot growth modifiers
+
+Fixes kelp modifier changing growth for other crops
+Also add growth modifiers for glow berries, mangrove propagules
+and torchflower crops
+Also fix above-mentioned modifiers from having the reverse effect
+
+Co-authored-by: Jake Potrebic <jake.m.potrebic@gmail.com>
+Co-authored-by: Noah van der Aa <ndvdaa@gmail.com>
+Co-authored-by: Lulu13022002 <41980282+Lulu13022002@users.noreply.github.com>
+
+diff --git a/src/main/java/net/minecraft/world/level/block/CaveVinesBlock.java b/src/main/java/net/minecraft/world/level/block/CaveVinesBlock.java
+index 55f2fa02a36f0500b47f9ce377926719557106e5..18b5bce1138d50be32e5da013221be69dc47e21f 100644
+--- a/src/main/java/net/minecraft/world/level/block/CaveVinesBlock.java
+++ b/src/main/java/net/minecraft/world/level/block/CaveVinesBlock.java
+@@ -47,9 +47,17 @@ public class CaveVinesBlock extends GrowingPlantHeadBlock implements Bonemealabl
+ 
+     @Override
+     protected BlockState getGrowIntoState(BlockState state, RandomSource random) {
+-        return super.getGrowIntoState(state, random).setValue(BERRIES, Boolean.valueOf(random.nextFloat() < 0.11F));
+        // Paper start
+        return this.getGrowIntoState(state, random, null);
+     }
+ 
+    @Override
+    protected BlockState getGrowIntoState(BlockState state, RandomSource random, @javax.annotation.Nullable Level level) {
+        final boolean value = random.nextFloat() < (level != null ? (0.11F * (level.spigotConfig.glowBerryModifier / 100.0F)) : 0.11F);
+        return (BlockState) super.getGrowIntoState(state, random).setValue(CaveVinesBlock.BERRIES, value);
+    }
+    // Paper end
+
+     @Override
+     public ItemStack getCloneItemStack(BlockGetter world, BlockPos pos, BlockState state) {
+         return new ItemStack(Items.GLOW_BERRIES);
+diff --git a/src/main/java/net/minecraft/world/level/block/CropBlock.java b/src/main/java/net/minecraft/world/level/block/CropBlock.java
+index 448c958a7a40258132add92da74fa689cf2ac046..c463adf131c4ca6e38f18d4efd94f4629bcfafe9 100644
+--- a/src/main/java/net/minecraft/world/level/block/CropBlock.java
+++ b/src/main/java/net/minecraft/world/level/block/CropBlock.java
+@@ -84,6 +84,10 @@ public class CropBlock extends BushBlock implements BonemealableBlock {
+                     modifier = world.spigotConfig.carrotModifier;
+                 } else if (this == Blocks.POTATOES) {
+                     modifier = world.spigotConfig.potatoModifier;
+                // Paper start
+                } else if (this == Blocks.TORCHFLOWER_CROP) {
+                    modifier = world.spigotConfig.torchFlowerModifier;
+                // Paper end
+                 } else {
+                     modifier = world.spigotConfig.wheatModifier;
+                 }
+diff --git a/src/main/java/net/minecraft/world/level/block/GrowingPlantHeadBlock.java b/src/main/java/net/minecraft/world/level/block/GrowingPlantHeadBlock.java
+index 53b91cf8092b46dbf45afea9ccf439d565d1914a..3a1aa4e2405090ccebefb7f5944f36462929e221 100644
+--- a/src/main/java/net/minecraft/world/level/block/GrowingPlantHeadBlock.java
+++ b/src/main/java/net/minecraft/world/level/block/GrowingPlantHeadBlock.java
+@@ -56,12 +56,18 @@ public abstract class GrowingPlantHeadBlock extends GrowingPlantBlock implements
+             BlockPos blockposition1 = pos.relative(this.growthDirection);
+ 
+             if (this.canGrowInto(world.getBlockState(blockposition1))) {
+-                org.bukkit.craftbukkit.event.CraftEventFactory.handleBlockSpreadEvent(world, pos, blockposition1, this.getGrowIntoState(state, world.random)); // CraftBukkit
+                org.bukkit.craftbukkit.event.CraftEventFactory.handleBlockSpreadEvent(world, pos, blockposition1, this.getGrowIntoState(state, world.random, world)); // CraftBukkit // Paper
+             }
+         }
+ 
+     }
+ 
+    // Paper start
+    protected BlockState getGrowIntoState(BlockState state, RandomSource random, @javax.annotation.Nullable Level level) {
+        return this.getGrowIntoState(state, random);
+    }
+    // Paper end
+
+     protected BlockState getGrowIntoState(BlockState state, RandomSource random) {
+         return (BlockState) state.cycle(GrowingPlantHeadBlock.AGE);
+     }
+diff --git a/src/main/java/net/minecraft/world/level/block/MangrovePropaguleBlock.java b/src/main/java/net/minecraft/world/level/block/MangrovePropaguleBlock.java
+index 5d78348fc18b22ccb7ad109890f867e20efec047..44c78f0d56c3459c063c104e401a521e3df7d8e5 100644
+--- a/src/main/java/net/minecraft/world/level/block/MangrovePropaguleBlock.java
+++ b/src/main/java/net/minecraft/world/level/block/MangrovePropaguleBlock.java
+@@ -89,7 +89,7 @@ public class MangrovePropaguleBlock extends SaplingBlock implements SimpleWaterl
+     @Override
+     public void randomTick(BlockState state, ServerLevel world, BlockPos pos, RandomSource random) {
+         if (!isHanging(state)) {
+-            if (random.nextInt(7) == 0) {
+            if (random.nextFloat() < (world.spigotConfig.saplingModifier / (100.0F * 7))) { // Paper
+                 this.advanceTree(world, pos, state, random);
+             }
+ 
+diff --git a/src/main/java/org/spigotmc/SpigotWorldConfig.java b/src/main/java/org/spigotmc/SpigotWorldConfig.java
+index b7d6197cb5f46bb020fff049ae2dd8fc3ee8ff2f..8c45f28450bc1079ee5d184591f1ac03babced4e 100644
+--- a/src/main/java/org/spigotmc/SpigotWorldConfig.java
+++ b/src/main/java/org/spigotmc/SpigotWorldConfig.java
+@@ -96,6 +96,7 @@ public class SpigotWorldConfig
+     public int beetrootModifier;
+     public int carrotModifier;
+     public int potatoModifier;
+    public int torchFlowerModifier; // Paper
+     public int wheatModifier;
+     public int wartModifier;
+     public int vineModifier;
+@@ -106,6 +107,7 @@ public class SpigotWorldConfig
+     public int twistingVinesModifier;
+     public int weepingVinesModifier;
+     public int caveVinesModifier;
+    public int glowBerryModifier; // Paper
+     private int getAndValidateGrowth(String crop)
+     {
+         int modifier = this.getInt( "growth." + crop.toLowerCase(java.util.Locale.ENGLISH) + "-modifier", 100 );
+@@ -129,6 +131,7 @@ public class SpigotWorldConfig
+         this.beetrootModifier = this.getAndValidateGrowth( "Beetroot" );
+         this.carrotModifier = this.getAndValidateGrowth( "Carrot" );
+         this.potatoModifier = this.getAndValidateGrowth( "Potato" );
+        this.torchFlowerModifier = this.getAndValidateGrowth("TorchFlower"); // Paper
+         this.wheatModifier = this.getAndValidateGrowth( "Wheat" );
+         this.wartModifier = this.getAndValidateGrowth( "NetherWart" );
+         this.vineModifier = this.getAndValidateGrowth( "Vine" );
+@@ -139,6 +142,7 @@ public class SpigotWorldConfig
+         this.twistingVinesModifier = this.getAndValidateGrowth( "TwistingVines" );
+         this.weepingVinesModifier = this.getAndValidateGrowth( "WeepingVines" );
+         this.caveVinesModifier = this.getAndValidateGrowth( "CaveVines" );
+        this.glowBerryModifier = this.getAndValidateGrowth("GlowBerry"); // Paper
+     }
+ 
+     public double itemMerge;
--- a/patches/server/0730-Prevent-ContainerOpenersCounter-openCount-from-going.patch
+++ b/patches/server/0730-Prevent-ContainerOpenersCounter-openCount-from-going.patch
@ -0,0 +1,18 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Shane Freeder <theboyetronic@gmail.com>
+Date: Tue, 30 Nov 2021 05:30:35 +0000
+Subject: [PATCH] Prevent ContainerOpenersCounter openCount from going negative
+
+
+diff --git a/src/main/java/net/minecraft/world/level/block/entity/ContainerOpenersCounter.java b/src/main/java/net/minecraft/world/level/block/entity/ContainerOpenersCounter.java
+index ba06184bad7e8ae55cb2d55f6196e8f990d2811d..3e4b3eecc788c564f81b7929bfab7d2fdb6e307d 100644
+--- a/src/main/java/net/minecraft/world/level/block/entity/ContainerOpenersCounter.java
+++ b/src/main/java/net/minecraft/world/level/block/entity/ContainerOpenersCounter.java
+@@ -64,6 +64,7 @@ public abstract class ContainerOpenersCounter {
+ 
+     public void decrementOpeners(Player player, Level world, BlockPos pos, BlockState state) {
+         int oldPower = Math.max(0, Math.min(15, this.openCount)); // CraftBukkit - Get power before new viewer is added
+        if (this.openCount == 0) return; // Paper
+         int i = this.openCount--;
+ 
+         // CraftBukkit start - Call redstone event
--- a/patches/server/0731-Add-PlayerItemFrameChangeEvent.patch
+++ b/patches/server/0731-Add-PlayerItemFrameChangeEvent.patch
@ -0,0 +1,60 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: SamB440 <sam@islandearth.net>
+Date: Mon, 15 Nov 2021 18:10:10 +0000
+Subject: [PATCH] Add PlayerItemFrameChangeEvent
+
+
+diff --git a/src/main/java/net/minecraft/world/entity/decoration/ItemFrame.java b/src/main/java/net/minecraft/world/entity/decoration/ItemFrame.java
+index dc999068891bfdfd4873ca939b4c4389d63f4415..a86472cce8e8fcde16d761842fe443a619f6e305 100644
+--- a/src/main/java/net/minecraft/world/entity/decoration/ItemFrame.java
+++ b/src/main/java/net/minecraft/world/entity/decoration/ItemFrame.java
+@@ -3,6 +3,7 @@ package net.minecraft.world.entity.decoration;
+ import com.mojang.logging.LogUtils;
+ import java.util.OptionalInt;
+ import javax.annotation.Nullable;
+import io.papermc.paper.event.player.PlayerItemFrameChangeEvent; // Paper
+ import net.minecraft.core.BlockPos;
+ import net.minecraft.core.Direction;
+ import net.minecraft.nbt.CompoundTag;
+@@ -190,6 +191,13 @@ public class ItemFrame extends HangingEntity {
+                     return true;
+                 }
+                 // CraftBukkit end
+                // Paper start - call PlayerItemFrameChangeEvent
+                if (source.getEntity() instanceof Player player) {
+                    var event = new PlayerItemFrameChangeEvent((org.bukkit.entity.Player) player.getBukkitEntity(), (org.bukkit.entity.ItemFrame) this.getBukkitEntity(), this.getItem().asBukkitCopy(), PlayerItemFrameChangeEvent.ItemFrameChangeAction.REMOVE);
+                    if (!event.callEvent()) return true; // return true here because you aren't cancelling the damage, just the change
+                    this.setItem(ItemStack.fromBukkitCopy(event.getItemStack()), false);
+                }
+                // Paper end
+                 this.dropItem(source.getEntity(), false);
+                 this.gameEvent(GameEvent.BLOCK_CHANGE, source.getEntity());
+                 this.playSound(this.getRemoveItemSound(), 1.0F, 1.0F);
+@@ -456,13 +464,26 @@ public class ItemFrame extends HangingEntity {
+                         }
+                     }
+ 
+-                    this.setItem(itemstack);
+                    // Paper start - call PlayerItemFrameChangeEvent
+                    PlayerItemFrameChangeEvent event = new PlayerItemFrameChangeEvent((org.bukkit.entity.Player) player.getBukkitEntity(), (org.bukkit.entity.ItemFrame) this.getBukkitEntity(), itemstack.asBukkitCopy(), PlayerItemFrameChangeEvent.ItemFrameChangeAction.PLACE);
+                    if (!event.callEvent()) {
+                        return InteractionResult.FAIL;
+                    }
+                    this.setItem(ItemStack.fromBukkitCopy(event.getItemStack()));
+                    // Paper end
+                     this.gameEvent(GameEvent.BLOCK_CHANGE, player);
+                     if (!player.getAbilities().instabuild) {
+                         itemstack.shrink(1);
+                     }
+                 }
+             } else {
+                // Paper start - call PlayerItemFrameChangeEvent
+                PlayerItemFrameChangeEvent event = new PlayerItemFrameChangeEvent((org.bukkit.entity.Player) player.getBukkitEntity(), (org.bukkit.entity.ItemFrame) this.getBukkitEntity(), this.getItem().asBukkitCopy(), PlayerItemFrameChangeEvent.ItemFrameChangeAction.ROTATE);
+                if (!event.callEvent()) {
+                    return InteractionResult.FAIL;
+                }
+                setItem(ItemStack.fromBukkitCopy(event.getItemStack()), false, false);
+                // Paper end
+                 this.playSound(this.getRotateItemSound(), 1.0F, 1.0F);
+                 this.setRotation(this.getRotation() + 1);
+                 this.gameEvent(GameEvent.BLOCK_CHANGE, player);
--- a/patches/server/0732-Add-player-health-update-API.patch
+++ b/patches/server/0732-Add-player-health-update-API.patch
@ -0,0 +1,37 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: SamB440 <sam@islandearth.net>
+Date: Wed, 17 Nov 2021 12:31:42 +0000
+Subject: [PATCH] Add player health update API
+
+
+diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
+index 7fedfc313be736255067d12d7524439d42575524..5f046c62a1764c13df3c11ecd4be0ecc9553e529 100644
+--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
+@@ -2366,9 +2366,11 @@ public class CraftPlayer extends CraftHumanEntity implements Player {
+         this.getHandle().maxHealthCache = getMaxHealth();
+     }
+ 
+-    public void sendHealthUpdate() {
+    // Paper start
+    @Override
+    public void sendHealthUpdate(final double health, final int foodLevel, final float saturationLevel) {
+         // Paper start - cancellable death event
+-        ClientboundSetHealthPacket packet = new ClientboundSetHealthPacket(this.getScaledHealth(), this.getHandle().getFoodData().getFoodLevel(), this.getHandle().getFoodData().getSaturationLevel());
+        ClientboundSetHealthPacket packet = new ClientboundSetHealthPacket((float) health, foodLevel, saturationLevel);
+         if (this.getHandle().queueHealthUpdatePacket) {
+             this.getHandle().queuedHealthUpdatePacket = packet;
+         } else {
+@@ -2377,6 +2379,12 @@ public class CraftPlayer extends CraftHumanEntity implements Player {
+         // Paper end
+     }
+ 
+    @Override
+    public void sendHealthUpdate() {
+        this.sendHealthUpdate(this.getScaledHealth(), this.getHandle().getFoodData().getFoodLevel(), this.getHandle().getFoodData().getSaturationLevel());
+    }
+    // Paper end
+
+     public void injectScaledMaxHealth(Collection<AttributeInstance> collection, boolean force) {
+         if (!this.scaledHealth && !force) {
+             return;
--- a/patches/server/0733-Optimize-HashMapPalette.patch
+++ b/patches/server/0733-Optimize-HashMapPalette.patch
@ -0,0 +1,57 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: stonar96 <minecraft.stonar96@gmail.com>
+Date: Sun, 17 Jan 2021 01:11:36 +0100
+Subject: [PATCH] Optimize HashMapPalette
+
+HashMapPalette uses an instance of CrudeIncrementalIntIdentityHashBiMap
+internally. A Palette has a preset maximum size = 1 << bits.
+CrudeIncrementalIntIdentityHashBiMap has an initial size but is
+automatically resized. The CrudeIncrementalIntIdentityHashBiMap is created
+with the maximum size in the constructor of HashMapPalette, with the aim
+that it doesn't need to be resized anymore. However, there are two things
+that I think Mojang hasn't considered here:
+1) The CrudeIncrementalIntIdentityHashBiMap is resized, when its initial
+size is reached and not the next time, when a further object is added.
+2) HashMapPalette adds objects (unnecessarily) before checking if the
+initial size of CrudeIncrementalIntIdentityHashBiMap is reached.
+This means to actually avoid resize operations in
+CrudeIncrementalIntIdentityHashBiMap, one has to add 2 to the initial size
+or add 1 and check the size before adding objects. This commit implements
+the second approach. Note that this isn't only an optimization but also
+makes async reads of Palettes fail-safe. An async read while the
+CrudeIncrementalIntIdentityHashBiMap is resized is fatal and can even lead
+to corrupted data. This is also something that Anti-Xray is currently
+relying on.
+
+diff --git a/src/main/java/net/minecraft/world/level/chunk/HashMapPalette.java b/src/main/java/net/minecraft/world/level/chunk/HashMapPalette.java
+index a6d0008636f72ff6614eda4b1fa856798e6b46fd..50580313a1e224a9569e343ccf4aa0c00b906a30 100644
+--- a/src/main/java/net/minecraft/world/level/chunk/HashMapPalette.java
+++ b/src/main/java/net/minecraft/world/level/chunk/HashMapPalette.java
+@@ -19,7 +19,7 @@ public class HashMapPalette<T> implements Palette<T> {
+     }
+ 
+     public HashMapPalette(IdMap<T> idList, int indexBits, PaletteResize<T> listener) {
+-        this(idList, indexBits, listener, CrudeIncrementalIntIdentityHashBiMap.create(1 << indexBits));
+        this(idList, indexBits, listener, CrudeIncrementalIntIdentityHashBiMap.create((1 << indexBits) + 1)); // Paper - Avoid unnecessary resize operation in CrudeIncrementalIntIdentityHashBiMap
+     }
+ 
+     private HashMapPalette(IdMap<T> idList, int indexBits, PaletteResize<T> listener, CrudeIncrementalIntIdentityHashBiMap<T> map) {
+@@ -37,10 +37,16 @@ public class HashMapPalette<T> implements Palette<T> {
+     public int idFor(T object) {
+         int i = this.values.getId(object);
+         if (i == -1) {
+-            i = this.values.add(object);
+-            if (i >= 1 << this.bits) {
+            // Paper start - Avoid unnecessary resize operation in CrudeIncrementalIntIdentityHashBiMap and optimize
+            // We use size() instead of the result from add(K)
+            // This avoids adding another object unnecessarily
+            // Without this change, + 2 would be required in the constructor
+            if (this.values.size() >= 1 << this.bits) {
+                 i = this.resizeHandler.onResize(this.bits + 1, object);
+            } else {
+                i = this.values.add(object);
+             }
+            // Paper end
+         }
+ 
+         return i;
--- a/patches/server/0734-Allow-delegation-to-vanilla-chunk-gen.patch
+++ b/patches/server/0734-Allow-delegation-to-vanilla-chunk-gen.patch
@ -0,0 +1,129 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: MiniDigger <admin@benndorf.dev>
+Date: Wed, 29 Apr 2020 02:10:32 +0200
+Subject: [PATCH] Allow delegation to vanilla chunk gen
+
+
+diff --git a/src/main/java/org/bukkit/craftbukkit/CraftServer.java b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
+index ecd6d91ca1ddee0d0d3b6d41fb96f432273deffc..9b2f05e6d1d8e52842abaa4c92b60f7558480c70 100644
+--- a/src/main/java/org/bukkit/craftbukkit/CraftServer.java
+++ b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
+@@ -2354,6 +2354,90 @@ public final class CraftServer implements Server {
+         return new OldCraftChunkData(world.getMinHeight(), world.getMaxHeight(), handle.registryAccess().registryOrThrow(Registries.BIOME));
+     }
+ 
+    // Paper start
+    private static final List<net.minecraft.world.level.chunk.ChunkStatus> VANILLA_GEN_STATUSES = List.of(
+        net.minecraft.world.level.chunk.ChunkStatus.EMPTY,
+        net.minecraft.world.level.chunk.ChunkStatus.STRUCTURE_STARTS,
+        net.minecraft.world.level.chunk.ChunkStatus.STRUCTURE_REFERENCES,
+        net.minecraft.world.level.chunk.ChunkStatus.BIOMES,
+        net.minecraft.world.level.chunk.ChunkStatus.NOISE,
+        net.minecraft.world.level.chunk.ChunkStatus.SURFACE,
+        net.minecraft.world.level.chunk.ChunkStatus.CARVERS,
+        net.minecraft.world.level.chunk.ChunkStatus.LIQUID_CARVERS,
+        net.minecraft.world.level.chunk.ChunkStatus.FEATURES,
+        net.minecraft.world.level.chunk.ChunkStatus.LIGHT
+    );
+
+    @Override
+    @Deprecated(forRemoval = true)
+    public ChunkGenerator.ChunkData createVanillaChunkData(World world, int x, int z) {
+        // do bunch of vanilla shit
+        final net.minecraft.server.level.ServerLevel serverLevel = ((CraftWorld) world).getHandle();
+        final net.minecraft.core.Registry<net.minecraft.world.level.biome.Biome> biomeRegistry = serverLevel.getServer().registryAccess().registryOrThrow(net.minecraft.core.registries.Registries.BIOME);
+        final net.minecraft.world.level.chunk.ProtoChunk protoChunk = new net.minecraft.world.level.chunk.ProtoChunk(
+            new net.minecraft.world.level.ChunkPos(x, z),
+            net.minecraft.world.level.chunk.UpgradeData.EMPTY,
+            serverLevel,
+            biomeRegistry,
+            null
+        );
+
+        final net.minecraft.world.level.chunk.ChunkGenerator chunkGenerator;
+        if (serverLevel.chunkSource.getGenerator() instanceof org.bukkit.craftbukkit.generator.CustomChunkGenerator bukkit) {
+            chunkGenerator = bukkit.getDelegate();
+        } else {
+            chunkGenerator = serverLevel.chunkSource.getGenerator();
+        }
+
+        final net.minecraft.world.level.ChunkPos chunkPos = new net.minecraft.world.level.ChunkPos(x, z);
+        final net.minecraft.util.thread.ProcessorMailbox<Runnable> mailbox = net.minecraft.util.thread.ProcessorMailbox.create(
+            net.minecraft.Util.backgroundExecutor(),
+            "CraftServer#createVanillaChunkData(worldName='" + world.getName() + "', x='" + x + "', z='" + z + "')"
+        );
+        for (final net.minecraft.world.level.chunk.ChunkStatus chunkStatus : VANILLA_GEN_STATUSES) {
+            final List<net.minecraft.world.level.chunk.ChunkAccess> chunks = Lists.newArrayList();
+            final int statusRange = Math.max(1, chunkStatus.getRange());
+
+            for (int zz = chunkPos.z - statusRange; zz <= chunkPos.z + statusRange; ++zz) {
+                for (int xx = chunkPos.x - statusRange; xx <= chunkPos.x + statusRange; ++xx) {
+                    if (xx == chunkPos.x && zz == chunkPos.z) {
+                        chunks.add(protoChunk);
+                    } else {
+                        final net.minecraft.core.Holder<net.minecraft.world.level.biome.Biome> biomeHolder = serverLevel.registryAccess().registryOrThrow(net.minecraft.core.registries.Registries.BIOME).getHolderOrThrow(net.minecraft.world.level.biome.Biomes.PLAINS);
+                        final net.minecraft.world.level.chunk.ChunkAccess chunk = new net.minecraft.world.level.chunk.EmptyLevelChunk(serverLevel, new net.minecraft.world.level.ChunkPos(xx, zz), biomeHolder);
+                        chunks.add(chunk);
+                    }
+                }
+            }
+
+            chunkStatus.generate(
+                mailbox::tell,
+                serverLevel,
+                chunkGenerator,
+                serverLevel.getStructureManager(),
+                serverLevel.chunkSource.getLightEngine(),
+                chunk -> {
+                    throw new UnsupportedOperationException("Not creating full chunks here");
+                },
+                chunks,
+                true
+            ).thenAccept(either -> {
+                if (chunkStatus == net.minecraft.world.level.chunk.ChunkStatus.NOISE) {
+                    either.left().ifPresent(chunk -> net.minecraft.world.level.levelgen.Heightmap.primeHeightmaps(chunk, net.minecraft.world.level.chunk.ChunkStatus.POST_FEATURES));
+                }
+            }).join();
+        }
+
+        // get empty object
+        OldCraftChunkData data = (OldCraftChunkData) this.createChunkData(world);
+        // copy over generated sections
+        data.getLights().addAll(protoChunk.getLights().toList());
+        data.setRawChunkData(protoChunk.getSections());
+        // hooray!
+        return data;
+    }
+    // Paper end
+
+     @Override
+     public BossBar createBossBar(String title, BarColor color, BarStyle style, BarFlag... flags) {
+         return new CraftBossBar(title, color, style, flags);
+diff --git a/src/main/java/org/bukkit/craftbukkit/generator/OldCraftChunkData.java b/src/main/java/org/bukkit/craftbukkit/generator/OldCraftChunkData.java
+index c23ce88cb9693291fec81a99e3a5bcb2615bb897..189a584b4b81bbc28d4c47b901b5aa6f85fb7932 100644
+--- a/src/main/java/org/bukkit/craftbukkit/generator/OldCraftChunkData.java
+++ b/src/main/java/org/bukkit/craftbukkit/generator/OldCraftChunkData.java
+@@ -23,7 +23,7 @@ import org.bukkit.material.MaterialData;
+ public final class OldCraftChunkData implements ChunkGenerator.ChunkData {
+     private final int minHeight;
+     private final int maxHeight;
+-    private final LevelChunkSection[] sections;
+    private LevelChunkSection[] sections; // Paper
+     private final Registry<net.minecraft.world.level.biome.Biome> biomes;
+     private Set<BlockPos> tiles;
+     private final Set<BlockPos> lights = new HashSet<>();
+@@ -189,7 +189,13 @@ public final class OldCraftChunkData implements ChunkGenerator.ChunkData {
+         return this.tiles;
+     }
+ 
+-    Set<BlockPos> getLights() {
+    public Set<BlockPos> getLights() { // Paper
+         return this.lights;
+     }
+
+    // Paper start
+    public void setRawChunkData(LevelChunkSection[] sections) {
+        this.sections = sections;
+    }
+    // Paper end
+ }
--- a/patches/server/0735-Highly-optimise-single-and-multi-AABB-VoxelShapes-an.patch
+++ b/patches/server/0735-Highly-optimise-single-and-multi-AABB-VoxelShapes-an.patch
--- a/patches/server/0736-Optimise-collision-checking-in-player-move-packet-ha.patch
+++ b/patches/server/0736-Optimise-collision-checking-in-player-move-packet-ha.patch
@ -0,0 +1,170 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Spottedleaf <Spottedleaf@users.noreply.github.com>
+Date: Thu, 2 Jul 2020 12:02:43 -0700
+Subject: [PATCH] Optimise collision checking in player move packet handling
+
+Move collision logic to just the hasNewCollision call instead of getCubes + hasNewCollision
+
+CHECK ME
+
+diff --git a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
+index 13e73042653909f194cfc909a96370656cbcf1ca..be79308ac6d30afe7b626f325a44b607969477fe 100644
+--- a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
+++ b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
+@@ -647,7 +647,7 @@ public class ServerGamePacketListenerImpl implements ServerPlayerConnection, Tic
+                     return;
+                 }
+ 
+-                boolean flag = worldserver.noCollision(entity, entity.getBoundingBox().deflate(0.0625D));
+                AABB oldBox = entity.getBoundingBox(); // Paper - copy from player movement packet
+ 
+                 d6 = d3 - this.vehicleLastGoodX; // Paper - diff on change, used for checking large move vectors above
+                 d7 = d4 - this.vehicleLastGoodY - 1.0E-6D; // Paper - diff on change, used for checking large move vectors above
+@@ -663,6 +663,7 @@ public class ServerGamePacketListenerImpl implements ServerPlayerConnection, Tic
+                 }
+ 
+                 entity.move(MoverType.PLAYER, new Vec3(d6, d7, d8));
+                boolean didCollide = toX != entity.getX() || toY != entity.getY() || toZ != entity.getZ(); // Paper - needed here as the difference in Y can be reset - also note: this is only a guess at whether collisions took place, floating point errors can make this true when it shouldn't be...
+                 double d11 = d7;
+ 
+                 d6 = d3 - entity.getX();
+@@ -676,16 +677,24 @@ public class ServerGamePacketListenerImpl implements ServerPlayerConnection, Tic
+                 boolean flag2 = false;
+ 
+                 if (d10 > org.spigotmc.SpigotConfig.movedWronglyThreshold) { // Spigot
+-                    flag2 = true;
+                    flag2 = true; // Paper - diff on change, this should be moved wrongly
+                     ServerGamePacketListenerImpl.LOGGER.warn("{} (vehicle of {}) moved wrongly! {}", new Object[]{entity.getName().getString(), this.player.getName().getString(), Math.sqrt(d10)});
+                 }
+                 Location curPos = this.getCraftPlayer().getLocation(); // Spigot
+ 
+                 entity.absMoveTo(d3, d4, d5, f, f1);
+                 this.player.absMoveTo(d3, d4, d5, this.player.getYRot(), this.player.getXRot()); // CraftBukkit
+-                boolean flag3 = worldserver.noCollision(entity, entity.getBoundingBox().deflate(0.0625D));
+ 
+-                if (flag && (flag2 || !flag3)) {
+                // Paper start - optimise out extra getCubes
+                boolean teleportBack = flag2; // violating this is always a fail
+                if (!teleportBack) {
+                    // note: only call after setLocation, or else getBoundingBox is wrong
+                    AABB newBox = entity.getBoundingBox();
+                    if (didCollide || !oldBox.equals(newBox)) {
+                        teleportBack = this.hasNewCollision(worldserver, entity, oldBox, newBox);
+                    } // else: no collision at all detected, why do we care?
+                }
+                if (teleportBack) { // Paper end - optimise out extra getCubes
+                     entity.absMoveTo(d0, d1, d2, f, f1);
+                     this.player.absMoveTo(d0, d1, d2, this.player.getYRot(), this.player.getXRot()); // CraftBukkit
+                     this.connection.send(new ClientboundMoveVehiclePacket(entity));
+@@ -771,7 +780,32 @@ public class ServerGamePacketListenerImpl implements ServerPlayerConnection, Tic
+     }
+ 
+     private boolean noBlocksAround(Entity entity) {
+-        return entity.level().getBlockStates(entity.getBoundingBox().inflate(0.0625D).expandTowards(0.0D, -0.55D, 0.0D)).allMatch(BlockBehaviour.BlockStateBase::isAir);
+        // Paper start - stop using streams, this is already a known fixed problem in Entity#move
+        AABB box = entity.getBoundingBox().inflate(0.0625D).expandTowards(0.0D, -0.55D, 0.0D);
+        int minX = Mth.floor(box.minX);
+        int minY = Mth.floor(box.minY);
+        int minZ = Mth.floor(box.minZ);
+        int maxX = Mth.floor(box.maxX);
+        int maxY = Mth.floor(box.maxY);
+        int maxZ = Mth.floor(box.maxZ);
+
+        Level world = entity.level();
+        BlockPos.MutableBlockPos pos = new BlockPos.MutableBlockPos();
+
+        for (int y = minY; y <= maxY; ++y) {
+            for (int z = minZ; z <= maxZ; ++z) {
+                for (int x = minX; x <= maxX; ++x) {
+                    pos.set(x, y, z);
+                    BlockState type = world.getBlockStateIfLoaded(pos);
+                    if (type != null && !type.isAir()) {
+                        return false;
+                    }
+                }
+            }
+        }
+
+        return true;
+        // Paper end - stop using streams, this is already a known fixed problem in Entity#move
+     }
+ 
+     @Override
+@@ -1347,7 +1381,7 @@ public class ServerGamePacketListenerImpl implements ServerPlayerConnection, Tic
+                 }
+ 
+                 if (this.awaitingPositionFromClient != null) {
+-                    if (this.tickCount - this.awaitingTeleportTime > 20) {
+                    if (false && this.tickCount - this.awaitingTeleportTime > 20) { // Paper - this will greatly screw with clients with > 1000ms RTT
+                         this.awaitingTeleportTime = this.tickCount;
+                         this.teleport(this.awaitingPositionFromClient.x, this.awaitingPositionFromClient.y, this.awaitingPositionFromClient.z, this.player.getYRot(), this.player.getXRot());
+                     }
+@@ -1440,7 +1474,7 @@ public class ServerGamePacketListenerImpl implements ServerPlayerConnection, Tic
+                                 }
+                             }
+ 
+-                            AABB axisalignedbb = this.player.getBoundingBox();
+                            AABB axisalignedbb = this.player.getBoundingBox(); // Paper - diff on change, should be old AABB
+ 
+                             d6 = d0 - this.lastGoodX; // Paper - diff on change, used for checking large move vectors above
+                             d7 = d1 - this.lastGoodY; // Paper - diff on change, used for checking large move vectors above
+@@ -1482,6 +1516,7 @@ public class ServerGamePacketListenerImpl implements ServerPlayerConnection, Tic
+ 
+                             this.player.move(MoverType.PLAYER, new Vec3(d6, d7, d8));
+                             this.player.onGround = packet.isOnGround(); // CraftBukkit - SPIGOT-5810, SPIGOT-5835, SPIGOT-6828: reset by this.player.move
+                            boolean didCollide = toX != this.player.getX() || toY != this.player.getY() || toZ != this.player.getZ(); // Paper - needed here as the difference in Y can be reset - also note: this is only a guess at whether collisions took place, floating point errors can make this true when it shouldn't be...
+                             // Paper start - prevent position desync
+                             if (this.awaitingPositionFromClient != null) {
+                                 return; // ... thanks Mojang for letting move calls teleport across dimensions.
+@@ -1500,11 +1535,22 @@ public class ServerGamePacketListenerImpl implements ServerPlayerConnection, Tic
+                             boolean flag2 = false;
+ 
+                             if (!this.player.isChangingDimension() && d10 > org.spigotmc.SpigotConfig.movedWronglyThreshold && !this.player.isSleeping() && !this.player.gameMode.isCreative() && this.player.gameMode.getGameModeForPlayer() != GameType.SPECTATOR) { // Spigot
+-                                flag2 = true;
+                                flag2 = true; // Paper - diff on change, this should be moved wrongly
+                                 ServerGamePacketListenerImpl.LOGGER.warn("{} moved wrongly!", this.player.getName().getString());
+                             }
+ 
+-                            if (!this.player.noPhysics && !this.player.isSleeping() && (flag2 && worldserver.noCollision(this.player, axisalignedbb) || this.isPlayerCollidingWithAnythingNew(worldserver, axisalignedbb, d0, d1, d2))) {
+                            // Paper start - optimise out extra getCubes
+                            // Original for reference:
+                            // boolean teleportBack = flag2 && worldserver.getCubes(this.player, axisalignedbb) || (didCollide && this.a((IWorldReader) worldserver, axisalignedbb));
+                            boolean teleportBack = flag2; // violating this is always a fail
+                            if (!this.player.noPhysics && !this.player.isSleeping() && !teleportBack) {
+                                AABB newBox = this.player.getBoundingBox();
+                                if (didCollide || !axisalignedbb.equals(newBox)) {
+                                    // note: only call after setLocation, or else getBoundingBox is wrong
+                                    teleportBack = this.hasNewCollision(worldserver, this.player, axisalignedbb, newBox);
+                                } // else: no collision at all detected, why do we care?
+                            }
+                            if (!this.player.noPhysics && !this.player.isSleeping() && teleportBack) { // Paper end - optimise out extra getCubes
+                                 this.internalTeleport(d3, d4, d5, f, f1, Collections.emptySet()); // CraftBukkit - SPIGOT-1807: Don't call teleport event, when the client thinks the player is falling, because the chunks are not loaded on the client yet.
+                                 this.player.doCheckFallDamage(this.player.getX() - d3, this.player.getY() - d4, this.player.getZ() - d5, packet.isOnGround());
+                             } else {
+@@ -1587,6 +1633,26 @@ public class ServerGamePacketListenerImpl implements ServerPlayerConnection, Tic
+         }
+     }
+ 
+    // Paper start - optimise out extra getCubes
+    private boolean hasNewCollision(final ServerLevel world, final Entity entity, final AABB oldBox, final AABB newBox) {
+        final List<AABB> collisions = io.papermc.paper.util.CachedLists.getTempCollisionList();
+        try {
+            io.papermc.paper.util.CollisionUtil.getCollisions(world, entity, newBox, collisions, false, true,
+                true, false, null, null);
+
+            for (int i = 0, len = collisions.size(); i < len; ++i) {
+                final AABB box = collisions.get(i);
+                if (!io.papermc.paper.util.CollisionUtil.voxelShapeIntersect(box, oldBox)) {
+                    return true;
+                }
+            }
+
+            return false;
+        } finally {
+            io.papermc.paper.util.CachedLists.returnTempCollisionList(collisions);
+        }
+    }
+    // Paper end - optimise out extra getCubes
+     private boolean isPlayerCollidingWithAnythingNew(LevelReader world, AABB box, double newX, double newY, double newZ) {
+         AABB axisalignedbb1 = this.player.getBoundingBox().move(newX - this.player.getX(), newY - this.player.getY(), newZ - this.player.getZ());
+         Iterable<VoxelShape> iterable = world.getCollisions(this.player, axisalignedbb1.deflate(9.999999747378752E-6D));
--- a/patches/server/0737-Fix-ChunkSnapshot-isSectionEmpty-int-and-optimize-Pa.patch
+++ b/patches/server/0737-Fix-ChunkSnapshot-isSectionEmpty-int-and-optimize-Pa.patch
@ -0,0 +1,43 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Jason Penilla <11360596+jpenilla@users.noreply.github.com>
+Date: Thu, 9 Dec 2021 00:08:11 -0800
+Subject: [PATCH] Fix ChunkSnapshot#isSectionEmpty(int) and optimize
+ PalettedContainer copying by not using codecs
+
+
+diff --git a/src/main/java/org/bukkit/craftbukkit/CraftChunk.java b/src/main/java/org/bukkit/craftbukkit/CraftChunk.java
+index b738e1f7debac7d70910d5ac908ca9d4f60640d5..007fd353bd55056ecddba2e16c5fa8c479961402 100644
+--- a/src/main/java/org/bukkit/craftbukkit/CraftChunk.java
+++ b/src/main/java/org/bukkit/craftbukkit/CraftChunk.java
+@@ -289,13 +289,17 @@ public class CraftChunk implements Chunk {
+         PalettedContainerRO<Holder<net.minecraft.world.level.biome.Biome>>[] biome = (includeBiome || includeBiomeTempRain) ? new PalettedContainer[cs.length] : null;
+ 
+         Registry<net.minecraft.world.level.biome.Biome> iregistry = this.worldServer.registryAccess().registryOrThrow(Registries.BIOME);
+-        Codec<PalettedContainerRO<Holder<net.minecraft.world.level.biome.Biome>>> biomeCodec = PalettedContainer.codecRO(iregistry.asHolderIdMap(), iregistry.holderByNameCodec(), PalettedContainer.Strategy.SECTION_BIOMES, iregistry.getHolderOrThrow(Biomes.PLAINS));
+ 
+         for (int i = 0; i < cs.length; i++) {
+-            CompoundTag data = new CompoundTag();
+ 
+-            data.put("block_states", ChunkSerializer.BLOCK_STATE_CODEC.encodeStart(NbtOps.INSTANCE, cs[i].getStates()).get().left().get());
+-            sectionBlockIDs[i] = ChunkSerializer.BLOCK_STATE_CODEC.parse(NbtOps.INSTANCE, data.getCompound("block_states")).get().left().get();
+            // Paper start
+            sectionEmpty[i] = cs[i].hasOnlyAir(); // Paper - fix sectionEmpty array not being filled
+            if (!sectionEmpty[i]) {
+                sectionBlockIDs[i] = cs[i].getStates().copy(); // Paper - use copy instead of round tripping with codecs
+            } else {
+                sectionBlockIDs[i] = CraftChunk.emptyBlockIDs; // Paper - use cached instance for empty block sections
+            }
+            // Paper end
+ 
+             LevelLightEngine lightengine = this.worldServer.getLightEngine();
+             DataLayer skyLightArray = lightengine.getLayerListener(LightLayer.SKY).getDataLayerData(SectionPos.of(x, i, z));
+@@ -314,8 +318,7 @@ public class CraftChunk implements Chunk {
+             }
+ 
+             if (biome != null) {
+-                data.put("biomes", biomeCodec.encodeStart(NbtOps.INSTANCE, cs[i].getBiomes()).get().left().get());
+-                biome[i] = biomeCodec.parse(NbtOps.INSTANCE, data.getCompound("biomes")).get().left().get();
+                biome[i] = ((PalettedContainer<Holder<net.minecraft.world.level.biome.Biome>>) cs[i].getBiomes()).copy(); // Paper - use copy instead of round tripping with codecs
+             }
+         }
+ 
--- a/patches/server/0738-Add-more-Campfire-API.patch
+++ b/patches/server/0738-Add-more-Campfire-API.patch
@ -0,0 +1,112 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: LemonCaramel <admin@caramel.moe>
+Date: Fri, 16 Jul 2021 00:39:03 +0900
+Subject: [PATCH] Add more Campfire API
+
+
+diff --git a/src/main/java/net/minecraft/world/level/block/entity/CampfireBlockEntity.java b/src/main/java/net/minecraft/world/level/block/entity/CampfireBlockEntity.java
+index 0cd019dc20ff5b3e7ee663866f98595081e991a3..91feee1e284c929b008bc2df7ab548df898b3ef7 100644
+--- a/src/main/java/net/minecraft/world/level/block/entity/CampfireBlockEntity.java
+++ b/src/main/java/net/minecraft/world/level/block/entity/CampfireBlockEntity.java
+@@ -41,6 +41,7 @@ public class CampfireBlockEntity extends BlockEntity implements Clearable {
+     public final int[] cookingProgress;
+     public final int[] cookingTime;
+     private final RecipeManager.CachedCheck<Container, CampfireCookingRecipe> quickCheck;
+    public final boolean[] stopCooking; // Paper
+ 
+     public CampfireBlockEntity(BlockPos pos, BlockState state) {
+         super(BlockEntityType.CAMPFIRE, pos, state);
+@@ -48,6 +49,7 @@ public class CampfireBlockEntity extends BlockEntity implements Clearable {
+         this.cookingProgress = new int[4];
+         this.cookingTime = new int[4];
+         this.quickCheck = RecipeManager.createCheck(RecipeType.CAMPFIRE_COOKING);
+        this.stopCooking = new boolean[4]; // Paper
+     }
+ 
+     public static void cookTick(Level world, BlockPos pos, BlockState state, CampfireBlockEntity campfire) {
+@@ -58,7 +60,9 @@ public class CampfireBlockEntity extends BlockEntity implements Clearable {
+ 
+             if (!itemstack.isEmpty()) {
+                 flag = true;
+                if (!campfire.stopCooking[i]) { // Paper
+                 int j = campfire.cookingProgress[i]++;
+                } // Paper
+ 
+                 if (campfire.cookingProgress[i] >= campfire.cookingTime[i]) {
+                     SimpleContainer inventorysubcontainer = new SimpleContainer(new ItemStack[]{itemstack});
+@@ -167,6 +171,16 @@ public class CampfireBlockEntity extends BlockEntity implements Clearable {
+             System.arraycopy(aint, 0, this.cookingTime, 0, Math.min(this.cookingTime.length, aint.length));
+         }
+ 
+        // Paper start
+        if (nbt.contains("Paper.StopCooking", org.bukkit.craftbukkit.util.CraftMagicNumbers.NBT.TAG_BYTE_ARRAY)) {
+            byte[] abyte = nbt.getByteArray("Paper.StopCooking");
+            boolean[] cookingState = new boolean[4];
+            for (int index = 0; index < abyte.length; index++) {
+                cookingState[index] = abyte[index] == 1;
+            }
+            System.arraycopy(cookingState, 0, this.stopCooking, 0, Math.min(this.stopCooking.length, abyte.length));
+        }
+        // Paper end
+     }
+ 
+     @Override
+@@ -175,6 +189,13 @@ public class CampfireBlockEntity extends BlockEntity implements Clearable {
+         ContainerHelper.saveAllItems(nbt, this.items, true);
+         nbt.putIntArray("CookingTimes", this.cookingProgress);
+         nbt.putIntArray("CookingTotalTimes", this.cookingTime);
+        // Paper start
+        byte[] cookingState = new byte[4];
+        for (int index = 0; index < cookingState.length; index++) {
+            cookingState[index] = (byte) (this.stopCooking[index] ? 1 : 0);
+        }
+        nbt.putByteArray("Paper.StopCooking", cookingState);
+        // Paper end
+     }
+ 
+     @Override
+diff --git a/src/main/java/org/bukkit/craftbukkit/block/CraftCampfire.java b/src/main/java/org/bukkit/craftbukkit/block/CraftCampfire.java
+index 391ff41951f51a5f9225bf4a9e28c0a4d064d8c9..eafba0532920a3162575dbe656e07734605590f5 100644
+--- a/src/main/java/org/bukkit/craftbukkit/block/CraftCampfire.java
+++ b/src/main/java/org/bukkit/craftbukkit/block/CraftCampfire.java
+@@ -47,4 +47,40 @@ public class CraftCampfire extends CraftBlockEntityState<CampfireBlockEntity> im
+     public void setCookTimeTotal(int index, int cookTimeTotal) {
+         getSnapshot().cookingTime[index] = cookTimeTotal;
+     }
+
+    // Paper start
+    @Override
+    public void stopCooking() {
+        for (int i = 0; i < getSnapshot().stopCooking.length; ++i)
+            this.stopCooking(i);
+    }
+
+    @Override
+    public void startCooking() {
+        for (int i = 0; i < getSnapshot().stopCooking.length; ++i)
+            this.startCooking(i);
+    }
+
+    @Override
+    public boolean stopCooking(int index) {
+        org.apache.commons.lang.Validate.isTrue(-1 < index && index < 4, "Slot index must be between 0 (incl) to 3 (incl)");
+        boolean previous = this.isCookingDisabled(index);
+        getSnapshot().stopCooking[index] = true;
+        return previous;
+    }
+
+    @Override
+    public boolean startCooking(int index) {
+        org.apache.commons.lang.Validate.isTrue(-1 < index && index < 4, "Slot index must be between 0 (incl) to 3 (incl)");
+        boolean previous = this.isCookingDisabled(index);
+        getSnapshot().stopCooking[index] = false;
+        return previous;
+    }
+
+    @Override
+    public boolean isCookingDisabled(int index) {
+        org.apache.commons.lang.Validate.isTrue(-1 < index && index < 4, "Slot index must be between 0 (incl) to 3 (incl)");
+        return getSnapshot().stopCooking[index];
+    }
+    // Paper end
+ }
--- a/patches/server/0739-Only-write-chunk-data-to-disk-if-it-serializes-witho.patch
+++ b/patches/server/0739-Only-write-chunk-data-to-disk-if-it-serializes-witho.patch
@ -0,0 +1,97 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Spottedleaf <Spottedleaf@users.noreply.github.com>
+Date: Sun, 19 Dec 2021 09:13:41 -0800
+Subject: [PATCH] Only write chunk data to disk if it serializes without
+ throwing
+
+This ensures at least a valid version of the chunk exists
+on disk, even if outdated
+
+diff --git a/src/main/java/net/minecraft/world/level/chunk/storage/RegionFile.java b/src/main/java/net/minecraft/world/level/chunk/storage/RegionFile.java
+index 98c436d84e4aedbdb805129fcdb6b871a1b4e3d9..536892e60d4a834161963bb587dc10c37b081a0a 100644
+--- a/src/main/java/net/minecraft/world/level/chunk/storage/RegionFile.java
+++ b/src/main/java/net/minecraft/world/level/chunk/storage/RegionFile.java
+@@ -1004,6 +1004,9 @@ public class RegionFile implements AutoCloseable {
+         }
+ 
+     }
+
+    public static final int MAX_CHUNK_SIZE = 500 * 1024 * 1024; // Paper - don't write garbage data to disk if writing serialization fails
+
+     // Paper end
+     private class ChunkBuffer extends ByteArrayOutputStream {
+ 
+@@ -1019,6 +1022,24 @@ public class RegionFile implements AutoCloseable {
+             this.pos = chunkcoordintpair;
+         }
+ 
+        // Paper start - don't write garbage data to disk if writing serialization fails
+        @Override
+        public void write(final int b) {
+            if (this.count > MAX_CHUNK_SIZE) {
+                throw new RegionFileStorage.RegionFileSizeException("Region file too large: " + this.count);
+            }
+            super.write(b);
+        }
+
+        @Override
+        public void write(final byte[] b, final int off, final int len) {
+            if (this.count + len > MAX_CHUNK_SIZE) {
+                throw new RegionFileStorage.RegionFileSizeException("Region file too large: " + (this.count + len));
+            }
+            super.write(b, off, len);
+        }
+        // Paper end
+
+         public void close() throws IOException {
+             ByteBuffer bytebuffer = ByteBuffer.wrap(this.buf, 0, this.count);
+ 
+diff --git a/src/main/java/net/minecraft/world/level/chunk/storage/RegionFileStorage.java b/src/main/java/net/minecraft/world/level/chunk/storage/RegionFileStorage.java
+index 5291bbe208397d73e6950e9f196bcd1da55c1fad..9bb8938fe3dff4cda2d1324c041f03299aa761e4 100644
+--- a/src/main/java/net/minecraft/world/level/chunk/storage/RegionFileStorage.java
+++ b/src/main/java/net/minecraft/world/level/chunk/storage/RegionFileStorage.java
+@@ -344,10 +344,17 @@ public class RegionFileStorage implements AutoCloseable {
+                 NbtIo.write(nbt, (DataOutput) dataoutputstream);
+                 regionfile.setStatus(pos.x, pos.z, ChunkSerializer.getStatus(nbt)); // Paper - cache status on disk
+                 regionfile.setOversized(pos.x, pos.z, false); // Paper - We don't do this anymore, mojang stores differently, but clear old meta flag if it exists to get rid of our own meta file once last oversized is gone
+                dataoutputstream.close(); // Paper - only write if successful
+            // Paper start - don't write garbage data to disk if writing serialization fails
+            } catch (RegionFileSizeException e) {
+                attempts = 5; // Don't retry
+                regionfile.clear(pos);
+                throw e;
+                // Paper end - don't write garbage data to disk if writing serialization fails
+             } catch (Throwable throwable) {
+                 if (dataoutputstream != null) {
+                     try {
+-                        dataoutputstream.close();
+                        //dataoutputstream.close(); // Paper - don't write garbage data to disk if writing serialization fails
+                     } catch (Throwable throwable1) {
+                         throwable.addSuppressed(throwable1);
+                     }
+@@ -355,10 +362,7 @@ public class RegionFileStorage implements AutoCloseable {
+ 
+                 throw throwable;
+             }
+-
+-            if (dataoutputstream != null) {
+-                dataoutputstream.close();
+-            }
+            // Paper - move into try block to only write if successfully serialized
+         }
+ 
+         } finally { // Paper start
+@@ -393,4 +397,13 @@ public class RegionFileStorage implements AutoCloseable {
+         }
+ 
+     }
+
+    // Paper start
+    public static final class RegionFileSizeException extends RuntimeException {
+
+        public RegionFileSizeException(String message) {
+            super(message);
+        }
+    }
+    // Paper end
+ }
--- a/patches/server/0740-Fix-tripwire-state-inconsistency.patch
+++ b/patches/server/0740-Fix-tripwire-state-inconsistency.patch
@ -0,0 +1,67 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Nassim Jahnke <nassim@njahnke.dev>
+Date: Sun, 19 Dec 2021 21:11:20 +0100
+Subject: [PATCH] Fix tripwire state inconsistency
+
+This patch prevents updating and re-setting the tripwire when being removed in certain conditions
+
+diff --git a/src/main/java/net/minecraft/world/level/block/TripWireBlock.java b/src/main/java/net/minecraft/world/level/block/TripWireBlock.java
+index 4e2fb4ee8e46b3c363992ff23e26f5a648c5f003..7f60175bf671d282c11e9084670d2bb900968255 100644
+--- a/src/main/java/net/minecraft/world/level/block/TripWireBlock.java
+++ b/src/main/java/net/minecraft/world/level/block/TripWireBlock.java
+@@ -74,7 +74,7 @@ public class TripWireBlock extends Block {
+     @Override
+     public void onRemove(BlockState state, Level world, BlockPos pos, BlockState newState, boolean moved) {
+         if (!moved && !state.is(newState.getBlock())) {
+-            this.updateSource(world, pos, (BlockState) state.setValue(TripWireBlock.POWERED, true));
+            this.updateSource(world, pos, (BlockState) state.setValue(TripWireBlock.POWERED, true), true); // Paper - fix state inconsistency
+         }
+     }
+ 
+@@ -89,6 +89,12 @@ public class TripWireBlock extends Block {
+     }
+ 
+     private void updateSource(Level world, BlockPos pos, BlockState state) {
+        // Paper start - fix state inconsistency
+        this.updateSource(world, pos, state, false);
+    }
+
+    private void updateSource(Level world, BlockPos pos, BlockState state, boolean beingRemoved) {
+        // Paper end
+         Direction[] aenumdirection = new Direction[]{Direction.SOUTH, Direction.WEST};
+         int i = aenumdirection.length;
+         int j = 0;
+@@ -104,7 +110,7 @@ public class TripWireBlock extends Block {
+ 
+                     if (iblockdata1.is((Block) this.hook)) {
+                         if (iblockdata1.getValue(TripWireHookBlock.FACING) == enumdirection.getOpposite()) {
+-                            this.hook.calculateState(world, blockposition1, iblockdata1, false, true, k, state);
+                            this.hook.calculateState(world, blockposition1, iblockdata1, false, true, k, state, beingRemoved); // Paper - fix state inconsistency
+                         }
+                     } else if (iblockdata1.is((Block) this)) {
+                         ++k;
+diff --git a/src/main/java/net/minecraft/world/level/block/TripWireHookBlock.java b/src/main/java/net/minecraft/world/level/block/TripWireHookBlock.java
+index 4a516828e5c6abd63511ee7c93fcff11203cf8d0..004dce26ff073f1de52a84cd425c4f60fdab5e50 100644
+--- a/src/main/java/net/minecraft/world/level/block/TripWireHookBlock.java
+++ b/src/main/java/net/minecraft/world/level/block/TripWireHookBlock.java
+@@ -108,6 +108,12 @@ public class TripWireHookBlock extends Block {
+     }
+ 
+     public void calculateState(Level world, BlockPos pos, BlockState state, boolean beingRemoved, boolean flag1, int i, @Nullable BlockState iblockdata1) {
+        // Paper start - fix tripwire inconsistency
+        this.calculateState(world, pos, state, beingRemoved, flag1, i, iblockdata1, false);
+    }
+
+    public void calculateState(Level world, BlockPos pos, BlockState state, boolean beingRemoved, boolean flag1, int i, @Nullable BlockState iblockdata1, boolean tripWireBeingRemoved) {
+        // Paper end
+         Direction enumdirection = (Direction) state.getValue(TripWireHookBlock.FACING);
+         boolean flag2 = (Boolean) state.getValue(TripWireHookBlock.ATTACHED);
+         boolean flag3 = (Boolean) state.getValue(TripWireHookBlock.POWERED);
+@@ -141,6 +147,7 @@ public class TripWireHookBlock extends Block {
+                 boolean flag7 = (Boolean) iblockdata2.getValue(TripWireBlock.POWERED);
+ 
+                 flag5 |= flag6 && flag7;
+                if (k != i || !tripWireBeingRemoved || !flag6) // Paper - don't update the tripwire again if being removed and not disarmed
+                 aiblockdata[k] = iblockdata2;
+                 if (k == i) {
+                     world.scheduleTick(pos, (Block) this, 10);
--- a/patches/server/0741-Forward-CraftEntity-in-teleport-command.patch
+++ b/patches/server/0741-Forward-CraftEntity-in-teleport-command.patch
@ -0,0 +1,39 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Jake Potrebic <jake.m.potrebic@gmail.com>
+Date: Sat, 4 Dec 2021 17:04:47 -0800
+Subject: [PATCH] Forward CraftEntity in teleport command
+
+
+diff --git a/src/main/java/net/minecraft/world/entity/Entity.java b/src/main/java/net/minecraft/world/entity/Entity.java
+index 6068d70f5eb566396d8c6bf6137e2c6cf21e33cf..f4edaa4395a0ec0d6c507ad7231c3992ab812d1c 100644
+--- a/src/main/java/net/minecraft/world/entity/Entity.java
+++ b/src/main/java/net/minecraft/world/entity/Entity.java
+@@ -3321,6 +3321,13 @@ public abstract class Entity implements Nameable, EntityAccess, CommandSource {
+     }
+ 
+     public void restoreFrom(Entity original) {
+        // Paper start
+        CraftEntity bukkitEntity = original.bukkitEntity;
+        if (bukkitEntity != null) {
+            bukkitEntity.setHandle(this);
+            this.bukkitEntity = bukkitEntity;
+        }
+        // Paper end
+         CompoundTag nbttagcompound = original.saveWithoutId(new CompoundTag());
+ 
+         nbttagcompound.remove("Dimension");
+@@ -3402,10 +3409,10 @@ public abstract class Entity implements Nameable, EntityAccess, CommandSource {
+                     if (worldserver.getTypeKey() == LevelStem.END) { // CraftBukkit
+                         ServerLevel.makeObsidianPlatform(worldserver, this); // CraftBukkit
+                     }
+-                    // CraftBukkit start - Forward the CraftEntity to the new entity
+-                    this.getBukkitEntity().setHandle(entity);
+-                    entity.bukkitEntity = this.getBukkitEntity();
+-                    // CraftBukkit end
+                    // // CraftBukkit start - Forward the CraftEntity to the new entity // Paper - moved to Entity#restoreFrom
+                    // this.getBukkitEntity().setHandle(entity);
+                    // entity.bukkitEntity = this.getBukkitEntity();
+                    // // CraftBukkit end
+                 }
+ 
+                 this.removeAfterChangingDimensions();
--- a/patches/server/0742-Improve-scoreboard-entries.patch
+++ b/patches/server/0742-Improve-scoreboard-entries.patch
@ -0,0 +1,84 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Jake Potrebic <jake.m.potrebic@gmail.com>
+Date: Thu, 4 Nov 2021 12:31:24 -0700
+Subject: [PATCH] Improve scoreboard entries
+
+
+diff --git a/src/main/java/org/bukkit/craftbukkit/scoreboard/CraftObjective.java b/src/main/java/org/bukkit/craftbukkit/scoreboard/CraftObjective.java
+index b7f0277b50a0f45c32b818bf9fe1218874aa8533..20b29f78fe56909e02061021b82a84cb7728d8a8 100644
+--- a/src/main/java/org/bukkit/craftbukkit/scoreboard/CraftObjective.java
+++ b/src/main/java/org/bukkit/craftbukkit/scoreboard/CraftObjective.java
+@@ -146,6 +146,14 @@ final class CraftObjective extends CraftScoreboardComponent implements Objective
+         return new CraftScore(this, entry);
+     }
+ 
+    // Paper start
+    @Override
+    public Score getScoreFor(org.bukkit.entity.Entity entity) throws IllegalArgumentException, IllegalStateException {
+        Validate.notNull(entity, "Entity cannot be null");
+        return getScore(((org.bukkit.craftbukkit.entity.CraftEntity) entity).getHandle().getScoreboardName());
+    }
+    // Paper end
+
+     @Override
+     public void unregister() throws IllegalStateException {
+         CraftScoreboard scoreboard = this.checkState();
+diff --git a/src/main/java/org/bukkit/craftbukkit/scoreboard/CraftScoreboard.java b/src/main/java/org/bukkit/craftbukkit/scoreboard/CraftScoreboard.java
+index a038ede38ebb507d6a0182a4a34f2b0722ef024e..fe57437155ff9471738d3b85e787350601b79584 100644
+--- a/src/main/java/org/bukkit/craftbukkit/scoreboard/CraftScoreboard.java
+++ b/src/main/java/org/bukkit/craftbukkit/scoreboard/CraftScoreboard.java
+@@ -247,4 +247,23 @@ public final class CraftScoreboard implements org.bukkit.scoreboard.Scoreboard {
+     public Scoreboard getHandle() {
+         return this.board;
+     }
+    // Paper start
+    @Override
+    public ImmutableSet<Score> getScoresFor(org.bukkit.entity.Entity entity) throws IllegalArgumentException {
+        Validate.notNull(entity, "Entity cannot be null");
+        return this.getScores(((org.bukkit.craftbukkit.entity.CraftEntity) entity).getHandle().getScoreboardName());
+    }
+
+    @Override
+    public void resetScoresFor(org.bukkit.entity.Entity entity) throws IllegalArgumentException {
+        Validate.notNull(entity, "Entity cannot be null");
+        this.resetScores(((org.bukkit.craftbukkit.entity.CraftEntity) entity).getHandle().getScoreboardName());
+    }
+
+    @Override
+    public Team getEntityTeam(org.bukkit.entity.Entity entity) throws IllegalArgumentException {
+        Validate.notNull(entity, "Entity cannot be null");
+        return this.getEntryTeam(((org.bukkit.craftbukkit.entity.CraftEntity) entity).getHandle().getScoreboardName());
+    }
+    // Paper end
+ }
+diff --git a/src/main/java/org/bukkit/craftbukkit/scoreboard/CraftTeam.java b/src/main/java/org/bukkit/craftbukkit/scoreboard/CraftTeam.java
+index 60b1cffdccde4715832546d6edbf206fbab4e82f..4b64d6c5c987e127d1ed5edad0a78f7172370b9f 100644
+--- a/src/main/java/org/bukkit/craftbukkit/scoreboard/CraftTeam.java
+++ b/src/main/java/org/bukkit/craftbukkit/scoreboard/CraftTeam.java
+@@ -310,6 +310,26 @@ final class CraftTeam extends CraftScoreboardComponent implements Team {
+         }
+     }
+ 
+    // Paper start
+    @Override
+    public void addEntity(org.bukkit.entity.Entity entity) throws IllegalStateException, IllegalArgumentException {
+        Validate.notNull(entity, "Entity cannot be null");
+        this.addEntry(((org.bukkit.craftbukkit.entity.CraftEntity) entity).getHandle().getScoreboardName());
+    }
+
+    @Override
+    public boolean removeEntity(org.bukkit.entity.Entity entity) throws IllegalStateException, IllegalArgumentException {
+        Validate.notNull(entity, "Entity cannot be null");
+        return this.removeEntry(((org.bukkit.craftbukkit.entity.CraftEntity) entity).getHandle().getScoreboardName());
+    }
+
+    @Override
+    public boolean hasEntity(org.bukkit.entity.Entity entity) throws IllegalStateException, IllegalArgumentException {
+        Validate.notNull(entity, "Entity cannot be null");
+        return this.hasEntry(((org.bukkit.craftbukkit.entity.CraftEntity) entity).getHandle().getScoreboardName());
+    }
+    // Paper end
+
+     public static Visibility bukkitToNotch(NameTagVisibility visibility) {
+         switch (visibility) {
+             case ALWAYS: