SPIGOT-336, SPIGOT-3366, SPIGOT-5768, SPIGOT-6409, SPIGOT-6861, #1008: Add EntityRemoveEvent

By: DerFrZocker <derrieple@gmail.com>

paper-server/nms-patches/net/minecraft/server/level/PlayerChunkMap.patch

@@ -99,11 +99,11 @@
 +                boolean needsRemoval = false;
 +                net.minecraft.server.dedicated.DedicatedServer server = worldserver.getCraftServer().getServer();
 +                if (!server.areNpcsEnabled() && entity instanceof net.minecraft.world.entity.npc.NPC) {
-+                    entity.discard();
++                    entity.discard(null); // CraftBukkit - add Bukkit remove cause
 +                    needsRemoval = true;
 +                }
 +                if (!server.isSpawningAnimals() && (entity instanceof net.minecraft.world.entity.animal.EntityAnimal || entity instanceof net.minecraft.world.entity.animal.EntityWaterAnimal)) {
-+                    entity.discard();
++                    entity.discard(null); // CraftBukkit - add Bukkit remove cause
 +                    needsRemoval = true;
 +                }
 +                return !needsRemoval;

paper-server/nms-patches/net/minecraft/server/level/WorldServer.patch

@@ -394,10 +394,14 @@
              return true;
          }
      }
-@@ -968,10 +1111,32 @@
-         entityplayer.remove(entity_removalreason);
+@@ -965,13 +1108,35 @@
      }
  
+     public void removePlayerImmediately(EntityPlayer entityplayer, Entity.RemovalReason entity_removalreason) {
+-        entityplayer.remove(entity_removalreason);
++        entityplayer.remove(entity_removalreason, null); // CraftBukkit - add Bukkit remove cause
++    }
++
 +    // CraftBukkit start
 +    public boolean strikeLightning(Entity entitylightning) {
 +        return this.strikeLightning(entitylightning, LightningStrikeEvent.Cause.UNKNOWN);
@@ -411,9 +415,9 @@
 +        }
 +
 +        return this.addFreshEntity(entitylightning);
-+    }
+     }
 +    // CraftBukkit end
-+
+ 
      @Override
      public void destroyBlockProgress(int i, BlockPosition blockposition, int j) {
          Iterator iterator = this.server.getPlayerList().getPlayers().iterator();

paper-server/nms-patches/net/minecraft/server/players/PlayerList.patch

@@ -1,6 +1,6 @@
 --- a/net/minecraft/server/players/PlayerList.java
 +++ b/net/minecraft/server/players/PlayerList.java
-@@ -101,6 +101,26 @@
+@@ -101,6 +101,27 @@
  import net.minecraft.world.scores.ScoreboardTeam;
  import org.slf4j.Logger;
  
@@ -15,6 +15,7 @@
 +import org.bukkit.craftbukkit.util.CraftChatMessage;
 +import org.bukkit.craftbukkit.util.CraftLocation;
 +import org.bukkit.entity.Player;
++import org.bukkit.event.entity.EntityRemoveEvent;
 +import org.bukkit.event.player.PlayerChangedWorldEvent;
 +import org.bukkit.event.player.PlayerJoinEvent;
 +import org.bukkit.event.player.PlayerLoginEvent;
@@ -27,7 +28,7 @@
  public abstract class PlayerList {
  
      public static final File USERBANLIST_FILE = new File("banned-players.json");
-@@ -113,14 +133,16 @@
+@@ -113,14 +134,16 @@
      private static final int SEND_PLAYER_INFO_INTERVAL = 600;
      private static final SimpleDateFormat BAN_DATE_FORMAT = new SimpleDateFormat("yyyy-MM-dd 'at' HH:mm:ss z");
      private final MinecraftServer server;
@@ -47,7 +48,7 @@
      public final WorldNBTStorage playerIo;
      private boolean doWhiteList;
      private final LayeredRegistryAccess<RegistryLayer> registries;
-@@ -131,13 +153,23 @@
+@@ -131,13 +154,23 @@
      private static final boolean ALLOW_LOGOUTIVATOR = false;
      private int sendAllPlayerInfoIn;
  
@@ -73,7 +74,7 @@
          this.server = minecraftserver;
          this.registries = layeredregistryaccess;
          this.maxPlayers = i;
-@@ -160,15 +192,21 @@
+@@ -160,15 +193,21 @@
  
          NBTTagCompound nbttagcompound = this.load(entityplayer);
          ResourceKey resourcekey;
@@ -98,7 +99,7 @@
          }
  
          ResourceKey<World> resourcekey1 = resourcekey;
-@@ -185,7 +223,8 @@
+@@ -185,7 +224,8 @@
          entityplayer.setServerLevel(worldserver1);
          String s1 = networkmanager.getLoggableAddress(this.server.logIPs());
  
@@ -108,7 +109,7 @@
          WorldData worlddata = worldserver1.getLevelData();
  
          entityplayer.loadGameTypes(nbttagcompound);
-@@ -196,6 +235,7 @@
+@@ -196,6 +236,7 @@
          boolean flag2 = gamerules.getBoolean(GameRules.RULE_LIMITED_CRAFTING);
  
          playerconnection.send(new PacketPlayOutLogin(entityplayer.getId(), worlddata.isHardcore(), this.server.levelKeys(), this.getMaxPlayers(), this.viewDistance, this.simulationDistance, flag1, !flag, flag2, entityplayer.createCommonSpawnInfo(worldserver1)));
@@ -116,7 +117,7 @@
          playerconnection.send(new PacketPlayOutServerDifficulty(worlddata.getDifficulty(), worlddata.isDifficultyLocked()));
          playerconnection.send(new PacketPlayOutAbilities(entityplayer.getAbilities()));
          playerconnection.send(new PacketPlayOutHeldItemSlot(entityplayer.getInventory().selected));
-@@ -212,8 +252,10 @@
+@@ -212,8 +253,10 @@
          } else {
              ichatmutablecomponent = IChatBaseComponent.translatable("multiplayer.player.joined.renamed", entityplayer.getDisplayName(), s);
          }
@@ -128,7 +129,7 @@
          playerconnection.teleport(entityplayer.getX(), entityplayer.getY(), entityplayer.getZ(), entityplayer.getYRot(), entityplayer.getXRot());
          ServerPing serverping = this.server.getStatus();
  
-@@ -221,13 +263,64 @@
+@@ -221,13 +264,64 @@
              entityplayer.sendServerStatus(serverping);
          }
  
@@ -197,7 +198,7 @@
          Iterator iterator = entityplayer.getActiveEffects().iterator();
  
          while (iterator.hasNext()) {
-@@ -238,8 +331,11 @@
+@@ -238,8 +332,11 @@
  
          if (nbttagcompound != null && nbttagcompound.contains("RootVehicle", 10)) {
              NBTTagCompound nbttagcompound1 = nbttagcompound.getCompound("RootVehicle");
@@ -211,7 +212,21 @@
              });
  
              if (entity != null) {
-@@ -282,6 +378,8 @@
+@@ -270,18 +367,20 @@
+ 
+                 if (!entityplayer.isPassenger()) {
+                     PlayerList.LOGGER.warn("Couldn't reattach entity to player");
+-                    entity.discard();
++                    entity.discard(null); // CraftBukkit - add Bukkit remove cause
+                     iterator1 = entity.getIndirectPassengers().iterator();
+ 
+                     while (iterator1.hasNext()) {
+                         entity1 = (Entity) iterator1.next();
+-                        entity1.discard();
++                        entity1.discard(null); // CraftBukkit - add Bukkit remove cause
+                     }
+                 }
+             }
          }
  
          entityplayer.initInventoryMenu();
@@ -220,7 +235,7 @@
      }
  
      public void updateEntireScoreboard(ScoreboardServer scoreboardserver, EntityPlayer entityplayer) {
-@@ -318,30 +416,31 @@
+@@ -318,30 +417,31 @@
      }
  
      public void addWorldborderListener(WorldServer worldserver) {
@@ -257,7 +272,7 @@
              }
  
              @Override
-@@ -369,14 +468,15 @@
+@@ -369,14 +469,15 @@
      }
  
      protected void save(EntityPlayer entityplayer) {
@@ -275,7 +290,7 @@
  
          if (advancementdataplayer != null) {
              advancementdataplayer.save();
-@@ -384,10 +484,24 @@
+@@ -384,10 +485,24 @@
  
      }
  
@@ -301,7 +316,16 @@
          this.save(entityplayer);
          if (entityplayer.isPassenger()) {
              Entity entity = entityplayer.getRootVehicle();
-@@ -411,18 +525,66 @@
+@@ -396,7 +511,7 @@
+                 PlayerList.LOGGER.debug("Removing player mount");
+                 entityplayer.stopRiding();
+                 entity.getPassengersAndSelf().forEach((entity1) -> {
+-                    entity1.setRemoved(Entity.RemovalReason.UNLOADED_WITH_PLAYER);
++                    entity1.setRemoved(Entity.RemovalReason.UNLOADED_WITH_PLAYER, EntityRemoveEvent.Cause.PLAYER_QUIT); // CraftBukkit - add Bukkit remove cause
+                 });
+             }
+         }
+@@ -411,18 +526,66 @@
  
          if (entityplayer1 == entityplayer) {
              this.playersByUUID.remove(uuid);
@@ -374,7 +398,7 @@
              GameProfileBanEntry gameprofilebanentry = (GameProfileBanEntry) this.bans.get(gameprofile);
  
              ichatmutablecomponent = IChatBaseComponent.translatable("multiplayer.disconnect.banned.reason", gameprofilebanentry.getReason());
-@@ -430,10 +592,12 @@
+@@ -430,10 +593,12 @@
                  ichatmutablecomponent.append((IChatBaseComponent) IChatBaseComponent.translatable("multiplayer.disconnect.banned.expiration", PlayerList.BAN_DATE_FORMAT.format(gameprofilebanentry.getExpires())));
              }
  
@@ -390,7 +414,7 @@
              IpBanEntry ipbanentry = this.ipBans.get(socketaddress);
  
              ichatmutablecomponent = IChatBaseComponent.translatable("multiplayer.disconnect.banned_ip.reason", ipbanentry.getReason());
-@@ -441,17 +605,32 @@
+@@ -441,17 +606,32 @@
                  ichatmutablecomponent.append((IChatBaseComponent) IChatBaseComponent.translatable("multiplayer.disconnect.banned_ip.expiration", PlayerList.BAN_DATE_FORMAT.format(ipbanentry.getExpires())));
              }
  
@@ -403,13 +427,13 @@
 +            if (this.players.size() >= this.maxPlayers && !this.canBypassPlayerLimit(gameprofile)) {
 +                event.disallow(PlayerLoginEvent.Result.KICK_FULL, "The server is full");
 +            }
-         }
++        }
 +
 +        cserver.getPluginManager().callEvent(event);
 +        if (event.getResult() != PlayerLoginEvent.Result.ALLOWED) {
 +            loginlistener.disconnect(event.getKickMessage());
 +            return null;
-+        }
+         }
 +        return entity;
      }
  
@@ -428,7 +452,7 @@
          UUID uuid = gameprofile.getId();
          Set<EntityPlayer> set = Sets.newIdentityHashSet();
          Iterator iterator = this.players.iterator();
-@@ -479,14 +658,24 @@
+@@ -479,14 +659,24 @@
          }
  
          return !set.isEmpty();
@@ -454,7 +478,7 @@
          WorldServer worldserver = this.server.getLevel(entityplayer.getRespawnDimension());
          Optional optional;
  
-@@ -498,6 +687,11 @@
+@@ -498,6 +688,11 @@
  
          WorldServer worldserver1 = worldserver != null && optional.isPresent() ? worldserver : this.server.overworld();
          EntityPlayer entityplayer1 = new EntityPlayer(this.server, worldserver1, entityplayer.getGameProfile(), entityplayer.clientInformation());
@@ -466,7 +490,7 @@
  
          entityplayer1.connection = entityplayer.connection;
          entityplayer1.restoreFrom(entityplayer, flag);
-@@ -513,28 +707,66 @@
+@@ -513,28 +708,66 @@
  
          boolean flag2 = false;
  
@@ -549,7 +573,7 @@
              entityplayer1.setPos(entityplayer1.getX(), entityplayer1.getY() + 1.0D, entityplayer1.getZ());
          }
  
-@@ -543,21 +775,43 @@
+@@ -543,21 +776,43 @@
          WorldData worlddata = worldserver2.getLevelData();
  
          entityplayer1.connection.send(new PacketPlayOutRespawn(entityplayer1.createCommonSpawnInfo(worldserver2), (byte) i));
@@ -598,7 +622,7 @@
          return entityplayer1;
      }
  
-@@ -570,7 +824,18 @@
+@@ -570,7 +825,18 @@
  
      public void tick() {
          if (++this.sendAllPlayerInfoIn > 600) {
@@ -618,7 +642,7 @@
              this.sendAllPlayerInfoIn = 0;
          }
  
-@@ -587,6 +852,25 @@
+@@ -587,6 +853,25 @@
  
      }
  
@@ -644,7 +668,7 @@
      public void broadcastAll(Packet<?> packet, ResourceKey<World> resourcekey) {
          Iterator iterator = this.players.iterator();
  
-@@ -665,7 +949,7 @@
+@@ -665,7 +950,7 @@
      }
  
      public void deop(GameProfile gameprofile) {
@@ -653,7 +677,7 @@
          EntityPlayer entityplayer = this.getPlayer(gameprofile.getId());
  
          if (entityplayer != null) {
-@@ -689,6 +973,7 @@
+@@ -689,6 +974,7 @@
              entityplayer.connection.send(new PacketPlayOutEntityStatus(entityplayer, b0));
          }
  
@@ -661,7 +685,7 @@
          this.server.getCommands().sendCommands(entityplayer);
      }
  
-@@ -719,6 +1004,12 @@
+@@ -719,6 +1005,12 @@
          for (int i = 0; i < this.players.size(); ++i) {
              EntityPlayer entityplayer = (EntityPlayer) this.players.get(i);
  
@@ -674,7 +698,7 @@
              if (entityplayer != entityhuman && entityplayer.level().dimension() == resourcekey) {
                  double d4 = d0 - entityplayer.getX();
                  double d5 = d1 - entityplayer.getY();
-@@ -758,15 +1049,19 @@
+@@ -758,15 +1050,19 @@
      public void reloadWhiteList() {}
  
      public void sendLevelInfo(EntityPlayer entityplayer, WorldServer worldserver) {
@@ -698,7 +722,7 @@
          }
  
          entityplayer.connection.send(new PacketPlayOutGameStateChange(PacketPlayOutGameStateChange.LEVEL_CHUNKS_LOAD_START, 0.0F));
-@@ -775,8 +1070,16 @@
+@@ -775,8 +1071,16 @@
  
      public void sendAllPlayerInfo(EntityPlayer entityplayer) {
          entityplayer.inventoryMenu.sendAllDataToRemote();
@@ -716,7 +740,7 @@
      }
  
      public int getPlayerCount() {
-@@ -832,12 +1135,22 @@
+@@ -832,12 +1136,22 @@
      }
  
      public void removeAll() {
@@ -741,7 +765,7 @@
      public void broadcastSystemMessage(IChatBaseComponent ichatbasecomponent, boolean flag) {
          this.broadcastSystemMessage(ichatbasecomponent, (entityplayer) -> {
              return ichatbasecomponent;
-@@ -895,16 +1208,23 @@
+@@ -895,16 +1209,23 @@
          return playerchatmessage.hasSignature() && !playerchatmessage.hasExpiredServer(Instant.now());
      }
  
@@ -769,7 +793,7 @@
                  Path path = file2.toPath();
  
                  if (FileUtils.isPathNormalized(path) && FileUtils.isPathPortable(path) && path.startsWith(file.getPath()) && file2.isFile()) {
-@@ -913,7 +1233,7 @@
+@@ -913,7 +1234,7 @@
              }
  
              serverstatisticmanager = new ServerStatisticManager(this.server, file1);
@@ -778,7 +802,7 @@
          }
  
          return serverstatisticmanager;
-@@ -921,13 +1241,13 @@
+@@ -921,13 +1242,13 @@
  
      public AdvancementDataPlayer getPlayerAdvancements(EntityPlayer entityplayer) {
          UUID uuid = entityplayer.getUUID();
@@ -794,7 +818,7 @@
          }
  
          advancementdataplayer.setPlayer(entityplayer);
-@@ -978,13 +1298,20 @@
+@@ -978,13 +1299,20 @@
      }
  
      public void reloadResources() {

paper-server/nms-patches/net/minecraft/util/SpawnUtil.patch

@@ -13,7 +13,7 @@
          BlockPosition.MutableBlockPosition blockposition_mutableblockposition = blockposition.mutable();
  
          for (int l = 0; l < i; ++l) {
-@@ -29,11 +35,11 @@
+@@ -29,15 +35,15 @@
  
              blockposition_mutableblockposition.setWithOffset(blockposition, i1, k, j1);
              if (worldserver.getWorldBorder().isWithinBounds((BlockPosition) blockposition_mutableblockposition) && moveToPossibleSpawnPosition(worldserver, k, blockposition_mutableblockposition, spawnutil_a)) {
@@ -27,3 +27,8 @@
                          return Optional.of(t0);
                      }
  
+-                    t0.discard();
++                    t0.discard(null); // CraftBukkit - add Bukkit remove cause
+                 }
+             }
+         }

paper-server/nms-patches/net/minecraft/world/entity/Entity.patch

@@ -1,6 +1,6 @@
 --- a/net/minecraft/world/entity/Entity.java
 +++ b/net/minecraft/world/entity/Entity.java
-@@ -126,8 +126,67 @@
+@@ -126,8 +126,68 @@
  import org.joml.Vector3f;
  import org.slf4j.Logger;
  
@@ -33,6 +33,7 @@
 +import org.bukkit.event.entity.EntityMountEvent;
 +import org.bukkit.event.entity.EntityPortalEvent;
 +import org.bukkit.event.entity.EntityPoseChangeEvent;
++import org.bukkit.event.entity.EntityRemoveEvent;
 +import org.bukkit.event.player.PlayerTeleportEvent;
 +import org.bukkit.plugin.PluginManager;
 +// CraftBukkit end
@@ -68,7 +69,7 @@
      private static final Logger LOGGER = LogUtils.getLogger();
      public static final String ID_TAG = "id";
      public static final String PASSENGERS_TAG = "Passengers";
-@@ -242,6 +301,29 @@
+@@ -242,6 +302,29 @@
      public boolean hasVisualFire;
      @Nullable
      private IBlockData feetBlockState;
@@ -98,7 +99,41 @@
  
      public Entity(EntityTypes<?> entitytypes, World world) {
          this.id = Entity.ENTITY_COUNTER.incrementAndGet();
-@@ -375,6 +457,12 @@
+@@ -346,12 +429,18 @@
+     }
+ 
+     public void kill() {
+-        this.remove(Entity.RemovalReason.KILLED);
++        this.remove(Entity.RemovalReason.KILLED, EntityRemoveEvent.Cause.DEATH); // CraftBukkit - add Bukkit remove cause
+         this.gameEvent(GameEvent.ENTITY_DIE);
+     }
+ 
+     public final void discard() {
+-        this.remove(Entity.RemovalReason.DISCARDED);
++        // CraftBukkit start - add Bukkit remove cause
++        this.discard(null);
++    }
++
++    public final void discard(EntityRemoveEvent.Cause cause) {
++        this.remove(Entity.RemovalReason.DISCARDED, cause);
++        // CraftBukkit end
+     }
+ 
+     protected abstract void defineSynchedData();
+@@ -369,12 +458,24 @@
+     }
+ 
+     public void remove(Entity.RemovalReason entity_removalreason) {
+-        this.setRemoved(entity_removalreason);
++        // CraftBukkit start - add Bukkit remove cause
++        this.setRemoved(entity_removalreason, null);
++    }
++
++    public void remove(Entity.RemovalReason entity_removalreason, EntityRemoveEvent.Cause cause) {
++        this.setRemoved(entity_removalreason, cause);
++        // CraftBukkit end
+     }
+ 
      public void onClientRemoval() {}
  
      public void setPose(EntityPose entitypose) {
@@ -111,7 +146,7 @@
          this.entityData.set(Entity.DATA_POSE, entitypose);
      }
  
-@@ -399,6 +487,33 @@
+@@ -399,6 +500,33 @@
      }
  
      protected void setRot(float f, float f1) {
@@ -145,7 +180,7 @@
          this.setYRot(f % 360.0F);
          this.setXRot(f1 % 360.0F);
      }
-@@ -440,6 +555,15 @@
+@@ -440,6 +568,15 @@
          this.baseTick();
      }
  
@@ -161,7 +196,7 @@
      public void baseTick() {
          this.level().getProfiler().push("entityBaseTick");
          this.feetBlockState = null;
-@@ -454,7 +578,7 @@
+@@ -454,7 +591,7 @@
          this.walkDistO = this.walkDist;
          this.xRotO = this.getXRot();
          this.yRotO = this.getYRot();
@@ -170,7 +205,7 @@
          if (this.canSpawnSprintParticle()) {
              this.spawnSprintParticle();
          }
-@@ -489,6 +613,10 @@
+@@ -489,6 +626,10 @@
          if (this.isInLava()) {
              this.lavaHurt();
              this.fallDistance *= 0.5F;
@@ -181,7 +216,7 @@
          }
  
          this.checkBelowWorld();
-@@ -540,15 +668,47 @@
+@@ -540,15 +681,47 @@
  
      public void lavaHurt() {
          if (!this.fireImmune()) {
@@ -231,7 +266,16 @@
          int j = i * 20;
  
          if (this instanceof EntityLiving) {
-@@ -699,6 +859,28 @@
+@@ -574,7 +747,7 @@
+     }
+ 
+     protected void onBelowWorld() {
+-        this.discard();
++        this.discard(EntityRemoveEvent.Cause.OUT_OF_WORLD); // CraftBukkit - add Bukkit remove cause
+     }
+ 
+     public boolean isFree(double d0, double d1, double d2) {
+@@ -699,6 +872,28 @@
                      block.updateEntityAfterFallOn(this.level(), this);
                  }
  
@@ -260,7 +304,7 @@
                  if (this.onGround()) {
                      block.stepOn(this.level(), blockposition, iblockdata, this);
                  }
-@@ -1026,6 +1208,20 @@
+@@ -1026,6 +1221,20 @@
          return SoundEffects.GENERIC_SPLASH;
      }
  
@@ -281,7 +325,7 @@
      protected void checkInsideBlocks() {
          AxisAlignedBB axisalignedbb = this.getBoundingBox();
          BlockPosition blockposition = BlockPosition.containing(axisalignedbb.minX + 1.0E-7D, axisalignedbb.minY + 1.0E-7D, axisalignedbb.minZ + 1.0E-7D);
-@@ -1440,6 +1636,7 @@
+@@ -1440,6 +1649,7 @@
          this.yo = d1;
          this.zo = d4;
          this.setPos(d3, d1, d4);
@@ -289,7 +333,7 @@
      }
  
      public void moveTo(Vec3D vec3d) {
-@@ -1634,6 +1831,12 @@
+@@ -1634,6 +1844,12 @@
          return false;
      }
  
@@ -302,7 +346,7 @@
      public void awardKillScore(Entity entity, int i, DamageSource damagesource) {
          if (entity instanceof EntityPlayer) {
              CriterionTriggers.ENTITY_KILLED_PLAYER.trigger((EntityPlayer) entity, this, damagesource);
-@@ -1662,16 +1865,22 @@
+@@ -1662,16 +1878,22 @@
      }
  
      public boolean saveAsPassenger(NBTTagCompound nbttagcompound) {
@@ -327,7 +371,7 @@
                  return true;
              }
          }
-@@ -1682,16 +1891,38 @@
+@@ -1682,16 +1904,38 @@
      }
  
      public NBTTagCompound saveWithoutId(NBTTagCompound nbttagcompound) {
@@ -370,7 +414,7 @@
              nbttagcompound.put("Rotation", this.newFloatList(this.getYRot(), this.getXRot()));
              nbttagcompound.putFloat("FallDistance", this.fallDistance);
              nbttagcompound.putShort("Fire", (short) this.remainingFireTicks);
-@@ -1699,7 +1930,28 @@
+@@ -1699,7 +1943,28 @@
              nbttagcompound.putBoolean("OnGround", this.onGround());
              nbttagcompound.putBoolean("Invulnerable", this.invulnerable);
              nbttagcompound.putInt("PortalCooldown", this.portalCooldown);
@@ -400,7 +444,7 @@
              IChatBaseComponent ichatbasecomponent = this.getCustomName();
  
              if (ichatbasecomponent != null) {
-@@ -1748,7 +2000,7 @@
+@@ -1748,7 +2013,7 @@
                  nbttagcompound.put("Tags", nbttaglist);
              }
  
@@ -409,7 +453,7 @@
              if (this.isVehicle()) {
                  nbttaglist = new NBTTagList();
                  iterator = this.getPassengers().iterator();
-@@ -1757,7 +2009,7 @@
+@@ -1757,7 +2022,7 @@
                      Entity entity = (Entity) iterator.next();
                      NBTTagCompound nbttagcompound1 = new NBTTagCompound();
  
@@ -418,7 +462,7 @@
                          nbttaglist.add(nbttagcompound1);
                      }
                  }
-@@ -1767,6 +2019,11 @@
+@@ -1767,6 +2032,11 @@
                  }
              }
  
@@ -430,7 +474,7 @@
              return nbttagcompound;
          } catch (Throwable throwable) {
              CrashReport crashreport = CrashReport.forThrowable(throwable, "Saving entity NBT");
-@@ -1850,6 +2107,45 @@
+@@ -1850,6 +2120,45 @@
              } else {
                  throw new IllegalStateException("Entity has invalid position");
              }
@@ -476,7 +520,7 @@
          } catch (Throwable throwable) {
              CrashReport crashreport = CrashReport.forThrowable(throwable, "Loading entity NBT");
              CrashReportSystemDetails crashreportsystemdetails = crashreport.addCategory("Entity being loaded");
-@@ -1871,6 +2167,12 @@
+@@ -1871,6 +2180,12 @@
          return entitytypes.canSerialize() && minecraftkey != null ? minecraftkey.toString() : null;
      }
  
@@ -489,7 +533,7 @@
      protected abstract void readAdditionalSaveData(NBTTagCompound nbttagcompound);
  
      protected abstract void addAdditionalSaveData(NBTTagCompound nbttagcompound);
-@@ -1925,9 +2227,22 @@
+@@ -1925,9 +2240,22 @@
          } else if (this.level().isClientSide) {
              return null;
          } else {
@@ -512,7 +556,7 @@
              this.level().addFreshEntity(entityitem);
              return entityitem;
          }
-@@ -2025,6 +2340,27 @@
+@@ -2025,6 +2353,27 @@
              if (!flag && (!this.canRide(entity) || !entity.canAddPassenger(this))) {
                  return false;
              } else {
@@ -540,7 +584,7 @@
                  if (this.isPassenger()) {
                      this.stopRiding();
                  }
-@@ -2058,7 +2394,7 @@
+@@ -2058,7 +2407,7 @@
              Entity entity = this.vehicle;
  
              this.vehicle = null;
@@ -549,7 +593,7 @@
          }
  
      }
-@@ -2089,10 +2425,38 @@
+@@ -2089,10 +2438,38 @@
          }
      }
  
@@ -589,7 +633,7 @@
              if (this.passengers.size() == 1 && this.passengers.get(0) == entity) {
                  this.passengers = ImmutableList.of();
              } else {
-@@ -2104,6 +2468,7 @@
+@@ -2104,6 +2481,7 @@
              entity.boardingCooldown = 60;
              this.gameEvent(GameEvent.ENTITY_DISMOUNT, entity);
          }
@@ -597,7 +641,7 @@
      }
  
      protected boolean canAddPassenger(Entity entity) {
-@@ -2190,14 +2555,20 @@
+@@ -2190,14 +2568,20 @@
  
              if (this.isInsidePortal) {
                  MinecraftServer minecraftserver = worldserver.getServer();
@@ -621,7 +665,7 @@
                      this.level().getProfiler().pop();
                  }
  
-@@ -2321,6 +2692,13 @@
+@@ -2321,6 +2705,13 @@
      }
  
      public void setSwimming(boolean flag) {
@@ -635,7 +679,7 @@
          this.setSharedFlag(4, flag);
      }
  
-@@ -2370,8 +2748,12 @@
+@@ -2370,8 +2761,12 @@
          return this.getTeam() != null ? this.getTeam().isAlliedTo(scoreboardteambase) : false;
      }
  
@@ -649,7 +693,7 @@
      }
  
      public boolean getSharedFlag(int i) {
-@@ -2390,7 +2772,7 @@
+@@ -2390,7 +2785,7 @@
      }
  
      public int getMaxAirSupply() {
@@ -658,7 +702,7 @@
      }
  
      public int getAirSupply() {
-@@ -2398,7 +2780,18 @@
+@@ -2398,7 +2793,18 @@
      }
  
      public void setAirSupply(int i) {
@@ -678,7 +722,7 @@
      }
  
      public int getTicksFrozen() {
-@@ -2425,11 +2818,40 @@
+@@ -2425,11 +2831,40 @@
  
      public void thunderHit(WorldServer worldserver, EntityLightning entitylightning) {
          this.setRemainingFireTicks(this.remainingFireTicks + 1);
@@ -721,7 +765,7 @@
      }
  
      public void onAboveBubbleCol(boolean flag) {
-@@ -2594,15 +3016,38 @@
+@@ -2594,15 +3029,38 @@
  
      @Nullable
      public Entity changeDimension(WorldServer worldserver) {
@@ -762,7 +806,7 @@
                  this.level().getProfiler().popPush("reloading");
                  Entity entity = this.getType().create(worldserver);
  
-@@ -2610,10 +3055,22 @@
+@@ -2610,10 +3068,22 @@
                      entity.restoreFrom(this);
                      entity.moveTo(shapedetectorshape.pos.x, shapedetectorshape.pos.y, shapedetectorshape.pos.z, shapedetectorshape.yRot, entity.getXRot());
                      entity.setDeltaMovement(shapedetectorshape.speed);
@@ -788,7 +832,13 @@
                  }
  
                  this.removeAfterChangingDimensions();
-@@ -2634,20 +3091,34 @@
+@@ -2629,25 +3099,39 @@
+     }
+ 
+     protected void removeAfterChangingDimensions() {
+-        this.setRemoved(Entity.RemovalReason.CHANGED_DIMENSION);
++        this.setRemoved(Entity.RemovalReason.CHANGED_DIMENSION, null); // CraftBukkit - add Bukkit remove cause
+     }
  
      @Nullable
      protected ShapeDetectorShape findDimensionEntryPoint(WorldServer worldserver) {
@@ -828,7 +878,7 @@
                      IBlockData iblockdata = this.level().getBlockState(this.portalEntrancePos);
                      EnumDirection.EnumAxis enumdirection_enumaxis;
                      Vec3D vec3d;
-@@ -2664,8 +3135,8 @@
+@@ -2664,8 +3148,8 @@
                          vec3d = new Vec3D(0.5D, 0.0D, 0.0D);
                      }
  
@@ -839,7 +889,7 @@
              }
          } else {
              BlockPosition blockposition1;
-@@ -2675,8 +3146,14 @@
+@@ -2675,8 +3159,14 @@
              } else {
                  blockposition1 = worldserver.getHeightmapPos(HeightMap.Type.MOTION_BLOCKING_NO_LEAVES, worldserver.getSharedSpawnPos());
              }
@@ -855,7 +905,7 @@
          }
      }
  
-@@ -2684,8 +3161,23 @@
+@@ -2684,8 +3174,23 @@
          return BlockPortalShape.getRelativePosition(blockutil_rectangle, enumdirection_enumaxis, this.position(), this.getDimensions(this.getPose()));
      }
  
@@ -881,7 +931,7 @@
      }
  
      public boolean canChangeDimensions() {
-@@ -2806,6 +3298,12 @@
+@@ -2806,6 +3311,12 @@
          }
      }
  
@@ -894,11 +944,13 @@
      public boolean teleportTo(WorldServer worldserver, double d0, double d1, double d2, Set<RelativeMovement> set, float f, float f1) {
          float f2 = MathHelper.clamp(f1, -90.0F, 90.0F);
  
-@@ -2825,7 +3323,11 @@
+@@ -2824,8 +3335,12 @@
+             entity.restoreFrom(this);
              entity.moveTo(d0, d1, d2, f, f2);
              entity.setYHeadRot(f);
-             this.setRemoved(Entity.RemovalReason.CHANGED_DIMENSION);
+-            this.setRemoved(Entity.RemovalReason.CHANGED_DIMENSION);
 -            worldserver.addDuringTeleport(entity);
++            this.setRemoved(Entity.RemovalReason.CHANGED_DIMENSION, null); // CraftBukkit - add Bukkit remove cause
 +            // CraftBukkit start - Don't spawn the new entity if the current entity isn't spawned
 +            if (inWorld) {
 +                worldserver.addDuringTeleport(entity);
@@ -907,7 +959,7 @@
          }
  
          return true;
-@@ -2931,7 +3433,26 @@
+@@ -2931,7 +3446,26 @@
      }
  
      public final void setBoundingBox(AxisAlignedBB axisalignedbb) {
@@ -935,7 +987,7 @@
      }
  
      protected float getEyeHeight(EntityPose entitypose, EntitySize entitysize) {
-@@ -3246,6 +3767,11 @@
+@@ -3246,6 +3780,11 @@
                                      vec3d = vec3d.add(vec3d1);
                                      ++k1;
                                  }
@@ -947,3 +999,18 @@
                              }
                          }
                      }
+@@ -3517,6 +4056,14 @@
+ 
+     @Override
+     public final void setRemoved(Entity.RemovalReason entity_removalreason) {
++        // CraftBukkit start - add Bukkit remove cause
++        setRemoved(entity_removalreason, null);
++    }
++
++    @Override
++    public final void setRemoved(Entity.RemovalReason entity_removalreason, EntityRemoveEvent.Cause cause) {
++        CraftEventFactory.callEntityRemoveEvent(this, cause);
++        // CraftBukkit end
+         if (this.removalReason == null) {
+             this.removalReason = entity_removalreason;
+         }

paper-server/nms-patches/net/minecraft/world/entity/EntityAreaEffectCloud.patch

@@ -1,6 +1,6 @@
 --- a/net/minecraft/world/entity/EntityAreaEffectCloud.java
 +++ b/net/minecraft/world/entity/EntityAreaEffectCloud.java
-@@ -31,6 +31,12 @@
+@@ -31,6 +31,13 @@
  import net.minecraft.world.level.material.EnumPistonReaction;
  import org.slf4j.Logger;
  
@@ -8,12 +8,31 @@
 +import net.minecraft.resources.MinecraftKey;
 +import org.bukkit.craftbukkit.entity.CraftLivingEntity;
 +import org.bukkit.entity.LivingEntity;
++import org.bukkit.event.entity.EntityRemoveEvent;
 +// CraftBukkit end
 +
  public class EntityAreaEffectCloud extends Entity implements TraceableEntity {
  
      private static final Logger LOGGER = LogUtils.getLogger();
-@@ -264,6 +270,7 @@
+@@ -216,7 +223,7 @@
+             }
+         } else {
+             if (this.tickCount >= this.waitTime + this.duration) {
+-                this.discard();
++                this.discard(EntityRemoveEvent.Cause.DESPAWN); // CraftBukkit - add Bukkit remove cause
+                 return;
+             }
+ 
+@@ -233,7 +240,7 @@
+             if (this.radiusPerTick != 0.0F) {
+                 f += this.radiusPerTick;
+                 if (f < 0.5F) {
+-                    this.discard();
++                    this.discard(EntityRemoveEvent.Cause.DESPAWN); // CraftBukkit - add Bukkit remove cause
+                     return;
+                 }
+ 
+@@ -264,6 +271,7 @@
                      if (!list1.isEmpty()) {
                          Iterator iterator1 = list1.iterator();
  
@@ -21,7 +40,7 @@
                          while (iterator1.hasNext()) {
                              EntityLiving entityliving = (EntityLiving) iterator1.next();
  
-@@ -273,6 +280,17 @@
+@@ -273,6 +281,17 @@
                                  double d8 = d6 * d6 + d7 * d7;
  
                                  if (d8 <= (double) (f * f)) {
@@ -39,7 +58,7 @@
                                      this.victims.put(entityliving, this.tickCount + this.reapplicationDelay);
                                      Iterator iterator2 = list.iterator();
  
-@@ -282,7 +300,7 @@
+@@ -282,14 +301,14 @@
                                          if (mobeffect1.getEffect().isInstantenous()) {
                                              mobeffect1.getEffect().applyInstantenousEffect(this, this.getOwner(), entityliving, mobeffect1.getAmplifier(), 0.5D);
                                          } else {
@@ -48,3 +67,20 @@
                                          }
                                      }
  
+                                     if (this.radiusOnUse != 0.0F) {
+                                         f += this.radiusOnUse;
+                                         if (f < 0.5F) {
+-                                            this.discard();
++                                            this.discard(EntityRemoveEvent.Cause.DESPAWN); // CraftBukkit - add Bukkit remove cause
+                                             return;
+                                         }
+ 
+@@ -299,7 +318,7 @@
+                                     if (this.durationOnUse != 0) {
+                                         this.duration += this.durationOnUse;
+                                         if (this.duration <= 0) {
+-                                            this.discard();
++                                            this.discard(EntityRemoveEvent.Cause.DESPAWN); // CraftBukkit - add Bukkit remove cause
+                                             return;
+                                         }
+                                     }

paper-server/nms-patches/net/minecraft/world/entity/EntityExperienceOrb.patch

@@ -1,11 +1,12 @@
 --- a/net/minecraft/world/entity/EntityExperienceOrb.java
 +++ b/net/minecraft/world/entity/EntityExperienceOrb.java
-@@ -21,6 +21,13 @@
+@@ -21,6 +21,14 @@
  import net.minecraft.world.phys.AxisAlignedBB;
  import net.minecraft.world.phys.Vec3D;
  
 +// CraftBukkit start
 +import org.bukkit.craftbukkit.event.CraftEventFactory;
++import org.bukkit.event.entity.EntityRemoveEvent;
 +import org.bukkit.event.entity.EntityTargetLivingEntityEvent;
 +import org.bukkit.event.entity.EntityTargetEvent;
 +import org.bukkit.event.player.PlayerExpCooldownChangeEvent;
@@ -14,7 +15,7 @@
  public class EntityExperienceOrb extends Entity {
  
      private static final int LIFETIME = 6000;
-@@ -59,6 +66,7 @@
+@@ -59,6 +67,7 @@
      @Override
      public void tick() {
          super.tick();
@@ -22,7 +23,7 @@
          this.xo = this.getX();
          this.yo = this.getY();
          this.zo = this.getZ();
-@@ -84,7 +92,22 @@
+@@ -84,7 +93,22 @@
              this.followingPlayer = null;
          }
  
@@ -46,7 +47,34 @@
              Vec3D vec3d = new Vec3D(this.followingPlayer.getX() - this.getX(), this.followingPlayer.getY() + (double) this.followingPlayer.getEyeHeight() / 2.0D - this.getY(), this.followingPlayer.getZ() - this.getZ());
              double d0 = vec3d.lengthSqr();
  
-@@ -227,12 +250,12 @@
+@@ -109,7 +133,7 @@
+ 
+         ++this.age;
+         if (this.age >= 6000) {
+-            this.discard();
++            this.discard(EntityRemoveEvent.Cause.DESPAWN); // CraftBukkit - add Bukkit remove cause
+         }
+ 
+     }
+@@ -178,7 +202,7 @@
+     private void merge(EntityExperienceOrb entityexperienceorb) {
+         this.count += entityexperienceorb.count;
+         this.age = Math.min(this.age, entityexperienceorb.age);
+-        entityexperienceorb.discard();
++        entityexperienceorb.discard(EntityRemoveEvent.Cause.MERGE); // CraftBukkit - add Bukkit remove cause
+     }
+ 
+     private void setUnderwaterMovement() {
+@@ -200,7 +224,7 @@
+             this.markHurt();
+             this.health = (int) ((float) this.health - f);
+             if (this.health <= 0) {
+-                this.discard();
++                this.discard(EntityRemoveEvent.Cause.DEATH); // CraftBukkit - add Bukkit remove cause
+             }
+ 
+             return true;
+@@ -227,17 +251,17 @@
      public void playerTouch(EntityHuman entityhuman) {
          if (!this.level().isClientSide) {
              if (entityhuman.takeXpDelay == 0) {
@@ -61,7 +89,13 @@
                  }
  
                  --this.count;
-@@ -250,9 +273,17 @@
+                 if (this.count == 0) {
+-                    this.discard();
++                    this.discard(EntityRemoveEvent.Cause.PICKUP); // CraftBukkit - add Bukkit remove cause
+                 }
+             }
+ 
+@@ -250,9 +274,17 @@
          if (entry != null) {
              ItemStack itemstack = (ItemStack) entry.getValue();
              int j = Math.min(this.xpToDurability(i), itemstack.getDamageValue());
@@ -79,7 +113,7 @@
  
              return k > 0 ? this.repairPlayerItems(entityhuman, k) : 0;
          } else {
-@@ -277,6 +308,24 @@
+@@ -277,6 +309,24 @@
      }
  
      public static int getExperienceValue(int i) {

paper-server/nms-patches/net/minecraft/world/entity/EntityInsentient.patch

@@ -1,6 +1,6 @@
 --- a/net/minecraft/world/entity/EntityInsentient.java
 +++ b/net/minecraft/world/entity/EntityInsentient.java
-@@ -76,6 +76,19 @@
+@@ -76,6 +76,20 @@
  import net.minecraft.world.level.pathfinder.PathType;
  import net.minecraft.world.phys.AxisAlignedBB;
  
@@ -10,6 +10,7 @@
 +import org.bukkit.craftbukkit.entity.CraftLivingEntity;
 +import org.bukkit.event.entity.CreatureSpawnEvent;
 +import org.bukkit.event.entity.EntityCombustByEntityEvent;
++import org.bukkit.event.entity.EntityRemoveEvent;
 +import org.bukkit.event.entity.EntityTargetLivingEntityEvent;
 +import org.bukkit.event.entity.EntityTargetEvent;
 +import org.bukkit.event.entity.EntityTransformEvent;
@@ -20,7 +21,7 @@
  public abstract class EntityInsentient extends EntityLiving implements Targeting {
  
      private static final DataWatcherObject<Byte> DATA_MOB_FLAGS_ID = DataWatcher.defineId(EntityInsentient.class, DataWatcherRegistry.BYTE);
-@@ -123,6 +136,8 @@
+@@ -123,6 +137,8 @@
      private BlockPosition restrictCenter;
      private float restrictRadius;
  
@@ -29,7 +30,7 @@
      protected EntityInsentient(EntityTypes<? extends EntityInsentient> entitytypes, World world) {
          super(entitytypes, world);
          this.handItems = NonNullList.withSize(2, ItemStack.EMPTY);
-@@ -148,6 +163,12 @@
+@@ -148,6 +164,12 @@
  
      }
  
@@ -42,7 +43,7 @@
      protected void registerGoals() {}
  
      public static AttributeProvider.Builder createMobAttributes() {
-@@ -259,7 +280,38 @@
+@@ -259,7 +281,38 @@
      }
  
      public void setTarget(@Nullable EntityLiving entityliving) {
@@ -81,7 +82,7 @@
      }
  
      @Override
-@@ -399,6 +451,12 @@
+@@ -399,6 +452,12 @@
          return null;
      }
  
@@ -94,7 +95,7 @@
      @Override
      public void addAdditionalSaveData(NBTTagCompound nbttagcompound) {
          super.addAdditionalSaveData(nbttagcompound);
-@@ -457,7 +515,7 @@
+@@ -457,7 +516,7 @@
          }
  
          nbttagcompound.put("HandDropChances", nbttaglist3);
@@ -103,7 +104,7 @@
              nbttagcompound2 = new NBTTagCompound();
              if (this.leashHolder instanceof EntityLiving) {
                  UUID uuid = this.leashHolder.getUUID();
-@@ -488,16 +546,26 @@
+@@ -488,16 +547,26 @@
              nbttagcompound.putBoolean("NoAI", this.isNoAi());
          }
  
@@ -132,7 +133,7 @@
          NBTTagList nbttaglist;
          int i;
  
-@@ -544,6 +612,11 @@
+@@ -544,6 +613,11 @@
          }
  
          this.setNoAi(nbttagcompound.getBoolean("NoAI"));
@@ -144,7 +145,7 @@
      }
  
      @Override
-@@ -611,7 +684,7 @@
+@@ -611,20 +685,26 @@
  
      protected void pickUpItem(EntityItem entityitem) {
          ItemStack itemstack = entityitem.getItem();
@@ -153,7 +154,14 @@
  
          if (!itemstack1.isEmpty()) {
              this.onItemPickup(entityitem);
-@@ -625,6 +698,12 @@
+             this.take(entityitem, itemstack1.getCount());
+             itemstack.shrink(itemstack1.getCount());
+             if (itemstack.isEmpty()) {
+-                entityitem.discard();
++                entityitem.discard(EntityRemoveEvent.Cause.PICKUP); // CraftBukkit - add Bukkit remove cause
+             }
+         }
+ 
      }
  
      public ItemStack equipItemIfPossible(ItemStack itemstack) {
@@ -166,7 +174,7 @@
          EnumItemSlot enumitemslot = getEquipmentSlotForItem(itemstack);
          ItemStack itemstack1 = this.getItemBySlot(enumitemslot);
          boolean flag = this.canReplaceCurrentItem(itemstack, itemstack1);
-@@ -635,11 +714,19 @@
+@@ -635,11 +715,19 @@
              flag = itemstack1.isEmpty();
          }
  
@@ -187,7 +195,33 @@
              }
  
              if (enumitemslot.isArmor() && itemstack.getCount() > 1) {
-@@ -791,6 +878,7 @@
+@@ -760,7 +848,7 @@
+     @Override
+     public void checkDespawn() {
+         if (this.level().getDifficulty() == EnumDifficulty.PEACEFUL && this.shouldDespawnInPeaceful()) {
+-            this.discard();
++            this.discard(EntityRemoveEvent.Cause.DESPAWN); // CraftBukkit - add Bukkit remove cause
+         } else if (!this.isPersistenceRequired() && !this.requiresCustomPersistence()) {
+             EntityHuman entityhuman = this.level().getNearestPlayer(this, -1.0D);
+ 
+@@ -770,14 +858,14 @@
+                 int j = i * i;
+ 
+                 if (d0 > (double) j && this.removeWhenFarAway(d0)) {
+-                    this.discard();
++                    this.discard(EntityRemoveEvent.Cause.DESPAWN); // CraftBukkit - add Bukkit remove cause
+                 }
+ 
+                 int k = this.getType().getCategory().getNoDespawnDistance();
+                 int l = k * k;
+ 
+                 if (this.noActionTime > 600 && this.random.nextInt(800) == 0 && d0 > (double) l && this.removeWhenFarAway(d0)) {
+-                    this.discard();
++                    this.discard(EntityRemoveEvent.Cause.DESPAWN); // CraftBukkit - add Bukkit remove cause
+                 } else if (d0 < (double) l) {
+                     this.noActionTime = 0;
+                 }
+@@ -791,6 +879,7 @@
      @Override
      protected final void serverAiStep() {
          ++this.noActionTime;
@@ -195,7 +229,7 @@
          this.level().getProfiler().push("sensing");
          this.sensing.tick();
          this.level().getProfiler().pop();
-@@ -1184,6 +1272,12 @@
+@@ -1184,6 +1273,12 @@
          if (!this.isAlive()) {
              return EnumInteractionResult.PASS;
          } else if (this.getLeashHolder() == entityhuman) {
@@ -208,7 +242,7 @@
              this.dropLeash(true, !entityhuman.getAbilities().instabuild);
              this.gameEvent(GameEvent.ENTITY_INTERACT, entityhuman);
              return EnumInteractionResult.sidedSuccess(this.level().isClientSide);
-@@ -1209,6 +1303,12 @@
+@@ -1209,6 +1304,12 @@
          ItemStack itemstack = entityhuman.getItemInHand(enumhand);
  
          if (itemstack.is(Items.LEAD) && this.canBeLeashed(entityhuman)) {
@@ -221,7 +255,7 @@
              this.setLeashedTo(entityhuman, true);
              itemstack.shrink(1);
              return EnumInteractionResult.sidedSuccess(this.level().isClientSide);
-@@ -1224,7 +1324,7 @@
+@@ -1224,7 +1325,7 @@
              if (itemstack.getItem() instanceof ItemMonsterEgg) {
                  if (this.level() instanceof WorldServer) {
                      ItemMonsterEgg itemmonsteregg = (ItemMonsterEgg) itemstack.getItem();
@@ -230,7 +264,7 @@
  
                      optional.ifPresent((entityinsentient) -> {
                          this.onOffspringSpawnedFromEgg(entityhuman, entityinsentient);
-@@ -1274,12 +1374,19 @@
+@@ -1274,12 +1375,19 @@
          return this.restrictRadius != -1.0F;
      }
  
@@ -251,7 +285,7 @@
  
              if (t0 == null) {
                  return null;
-@@ -1313,7 +1420,12 @@
+@@ -1313,7 +1421,12 @@
                      }
                  }
  
@@ -265,7 +299,16 @@
                  if (this.isPassenger()) {
                      Entity entity = this.getVehicle();
  
-@@ -1334,7 +1446,8 @@
+@@ -1321,7 +1434,7 @@
+                     t0.startRiding(entity, true);
+                 }
+ 
+-                this.discard();
++                this.discard(EntityRemoveEvent.Cause.TRANSFORMATION); // CraftBukkit - add Bukkit remove cause
+                 return t0;
+             }
+         }
+@@ -1334,7 +1447,8 @@
  
          if (this.leashHolder != null) {
              if (!this.isAlive() || !this.leashHolder.isAlive()) {
@@ -275,7 +318,7 @@
              }
  
          }
-@@ -1345,7 +1458,9 @@
+@@ -1345,7 +1459,9 @@
              this.leashHolder = null;
              this.leashInfoTag = null;
              if (!this.level().isClientSide && flag1) {
@@ -285,7 +328,7 @@
              }
  
              if (!this.level().isClientSide && flag && this.level() instanceof WorldServer) {
-@@ -1395,6 +1510,7 @@
+@@ -1395,6 +1511,7 @@
          boolean flag1 = super.startRiding(entity, flag);
  
          if (flag1 && this.isLeashed()) {
@@ -293,7 +336,7 @@
              this.dropLeash(true, true);
          }
  
-@@ -1419,7 +1535,9 @@
+@@ -1419,7 +1536,9 @@
              }
  
              if (this.tickCount > 100) {
@@ -303,7 +346,7 @@
                  this.leashInfoTag = null;
              }
          }
-@@ -1501,14 +1619,21 @@
+@@ -1501,14 +1620,21 @@
          int i = EnchantmentManager.getFireAspect(this);
  
          if (i > 0) {
@@ -327,7 +370,7 @@
                  this.setDeltaMovement(this.getDeltaMovement().multiply(0.6D, 1.0D, 0.6D));
              }
  
-@@ -1576,6 +1701,7 @@
+@@ -1576,6 +1702,7 @@
      @Override
      protected void removeAfterChangingDimensions() {
          super.removeAfterChangingDimensions();

paper-server/nms-patches/net/minecraft/world/entity/EntityLightning.patch

@@ -1,17 +1,27 @@
 --- a/net/minecraft/world/entity/EntityLightning.java
 +++ b/net/minecraft/world/entity/EntityLightning.java
-@@ -29,6 +29,10 @@
+@@ -29,6 +29,11 @@
  import net.minecraft.world.phys.AxisAlignedBB;
  import net.minecraft.world.phys.Vec3D;
  
 +// CraftBukkit start
 +import org.bukkit.craftbukkit.event.CraftEventFactory;
++import org.bukkit.event.entity.EntityRemoveEvent;
 +// CraftBukkit end
 +
  public class EntityLightning extends Entity {
  
      private static final int START_LIFE = 2;
-@@ -129,7 +133,7 @@
+@@ -120,7 +125,7 @@
+                     }
+                 }
+ 
+-                this.discard();
++                this.discard(EntityRemoveEvent.Cause.DESPAWN); // CraftBukkit - add Bukkit remove cause
+             } else if (this.life < -this.random.nextInt(10)) {
+                 --this.flashes;
+                 this.life = 1;
+@@ -129,7 +134,7 @@
              }
          }
  
@@ -20,7 +30,7 @@
              if (!(this.level() instanceof WorldServer)) {
                  this.level().setSkyFlashTime(2);
              } else if (!this.visualOnly) {
-@@ -163,8 +167,12 @@
+@@ -163,8 +168,12 @@
              IBlockData iblockdata = BlockFireAbstract.getState(this.level(), blockposition);
  
              if (this.level().getBlockState(blockposition).isAir() && iblockdata.canSurvive(this.level(), blockposition)) {
@@ -35,7 +45,7 @@
              }
  
              for (int j = 0; j < i; ++j) {
-@@ -172,8 +180,12 @@
+@@ -172,8 +181,12 @@
  
                  iblockdata = BlockFireAbstract.getState(this.level(), blockposition1);
                  if (this.level().getBlockState(blockposition1).isAir() && iblockdata.canSurvive(this.level(), blockposition1)) {
@@ -50,7 +60,7 @@
                  }
              }
  
-@@ -237,8 +249,9 @@
+@@ -237,8 +250,9 @@
              iblockdata = world.getBlockState(blockposition1);
          } while (!(iblockdata.getBlock() instanceof WeatheringCopper));
  

paper-server/nms-patches/net/minecraft/world/entity/EntityLiving.patch

@@ -1,6 +1,6 @@
 --- a/net/minecraft/world/entity/EntityLiving.java
 +++ b/net/minecraft/world/entity/EntityLiving.java
-@@ -119,6 +119,31 @@
+@@ -119,6 +119,32 @@
  import net.minecraft.world.scores.ScoreboardTeam;
  import org.slf4j.Logger;
  
@@ -24,6 +24,7 @@
 +import org.bukkit.event.entity.EntityKnockbackEvent;
 +import org.bukkit.event.entity.EntityPotionEffectEvent;
 +import org.bukkit.event.entity.EntityRegainHealthEvent;
++import org.bukkit.event.entity.EntityRemoveEvent;
 +import org.bukkit.event.entity.EntityResurrectEvent;
 +import org.bukkit.event.entity.EntityTeleportEvent;
 +import org.bukkit.event.player.PlayerItemConsumeEvent;
@@ -32,7 +33,7 @@
  public abstract class EntityLiving extends Entity implements Attackable {
  
      private static final Logger LOGGER = LogUtils.getLogger();
-@@ -225,7 +250,21 @@
+@@ -225,7 +251,21 @@
      private float swimAmount;
      private float swimAmountO;
      protected BehaviorController<?> brain;
@@ -55,7 +56,7 @@
  
      protected EntityLiving(EntityTypes<? extends EntityLiving> entitytypes, World world) {
          super(entitytypes, world);
-@@ -238,7 +277,9 @@
+@@ -238,7 +278,9 @@
          this.useItem = ItemStack.EMPTY;
          this.lastClimbablePos = Optional.empty();
          this.attributes = new AttributeMapBase(AttributeDefaults.getSupplier(entitytypes));
@@ -66,7 +67,7 @@
          this.blocksBuilding = true;
          this.rotA = (float) ((Math.random() + 1.0D) * 0.009999999776482582D);
          this.reapplyPosition();
-@@ -317,7 +358,13 @@
+@@ -317,7 +359,13 @@
              double d7 = Math.min((double) (0.2F + f / 15.0F), 2.5D);
              int i = (int) (150.0D * d7);
  
@@ -81,7 +82,16 @@
          }
  
          super.checkFallDamage(d0, flag, iblockdata, blockposition);
-@@ -672,13 +719,19 @@
+@@ -573,7 +621,7 @@
+         ++this.deathTime;
+         if (this.deathTime >= 20 && !this.level().isClientSide() && !this.isRemoved()) {
+             this.level().broadcastEntityEvent(this, (byte) 60);
+-            this.remove(Entity.RemovalReason.KILLED);
++            this.remove(Entity.RemovalReason.KILLED, EntityRemoveEvent.Cause.DEATH); // CraftBukkit - add Bukkit remove cause
+         }
+ 
+     }
+@@ -672,13 +720,19 @@
      }
  
      public void onEquipItem(EnumItemSlot enumitemslot, ItemStack itemstack, ItemStack itemstack1) {
@@ -102,7 +112,23 @@
                      this.level().playSound((EntityHuman) null, this.getX(), this.getY(), this.getZ(), equipable.getEquipSound(), this.getSoundSource(), 1.0F, 1.0F);
                  }
  
-@@ -752,6 +805,17 @@
+@@ -692,7 +746,14 @@
+ 
+     @Override
+     public void remove(Entity.RemovalReason entity_removalreason) {
+-        super.remove(entity_removalreason);
++        // CraftBukkit start - add Bukkit remove cause
++        this.remove(entity_removalreason, null);
++    }
++
++    @Override
++    public void remove(Entity.RemovalReason entity_removalreason, EntityRemoveEvent.Cause cause) {
++        super.remove(entity_removalreason, cause);
++        // CraftBukkit end
+         this.brain.clearMemories();
+     }
+ 
+@@ -752,6 +813,17 @@
              }
          }
  
@@ -120,7 +146,7 @@
          if (nbttagcompound.contains("Health", 99)) {
              this.setHealth(nbttagcompound.getFloat("Health"));
          }
-@@ -789,9 +853,32 @@
+@@ -789,9 +861,32 @@
  
      }
  
@@ -153,7 +179,7 @@
          try {
              while (iterator.hasNext()) {
                  MobEffectList mobeffectlist = (MobEffectList) iterator.next();
-@@ -801,6 +888,12 @@
+@@ -801,6 +896,12 @@
                      this.onEffectUpdated(mobeffect, true, (Entity) null);
                  })) {
                      if (!this.level().isClientSide) {
@@ -166,7 +192,7 @@
                          iterator.remove();
                          this.onEffectRemoved(mobeffect);
                      }
-@@ -811,6 +904,17 @@
+@@ -811,6 +912,17 @@
          } catch (ConcurrentModificationException concurrentmodificationexception) {
              ;
          }
@@ -184,7 +210,7 @@
  
          if (this.effectsDirty) {
              if (!this.level().isClientSide) {
-@@ -937,7 +1041,13 @@
+@@ -937,7 +1049,13 @@
          this.entityData.set(EntityLiving.DATA_EFFECT_COLOR_ID, 0);
      }
  
@@ -198,7 +224,7 @@
          if (this.level().isClientSide) {
              return false;
          } else {
-@@ -946,7 +1056,14 @@
+@@ -946,7 +1064,14 @@
              boolean flag;
  
              for (flag = false; iterator.hasNext(); flag = true) {
@@ -214,7 +240,7 @@
                  iterator.remove();
              }
  
-@@ -975,19 +1092,49 @@
+@@ -975,19 +1100,49 @@
          return this.addEffect(mobeffect, (Entity) null);
      }
  
@@ -265,7 +291,7 @@
                  flag = true;
              }
  
-@@ -1025,13 +1172,39 @@
+@@ -1025,13 +1180,39 @@
          return this.getMobType() == EnumMonsterType.UNDEAD;
      }
  
@@ -306,7 +332,7 @@
  
          if (mobeffect != null) {
              this.onEffectRemoved(mobeffect);
-@@ -1129,20 +1302,55 @@
+@@ -1129,20 +1310,55 @@
  
      }
  
@@ -363,7 +389,7 @@
          this.entityData.set(EntityLiving.DATA_HEALTH_ID, MathHelper.clamp(f, 0.0F, this.getMaxHealth()));
      }
  
-@@ -1156,7 +1364,7 @@
+@@ -1156,7 +1372,7 @@
              return false;
          } else if (this.level().isClientSide) {
              return false;
@@ -372,7 +398,7 @@
              return false;
          } else if (damagesource.is(DamageTypeTags.IS_FIRE) && this.hasEffect(MobEffects.FIRE_RESISTANCE)) {
              return false;
-@@ -1167,10 +1375,11 @@
+@@ -1167,10 +1383,11 @@
  
              this.noActionTime = 0;
              float f1 = f;
@@ -386,7 +412,7 @@
                  this.hurtCurrentlyUsedShield(f);
                  f2 = f;
                  f = 0.0F;
-@@ -1194,23 +1403,33 @@
+@@ -1194,23 +1411,33 @@
              this.walkAnimation.setSpeed(1.5F);
              boolean flag1 = true;
  
@@ -425,7 +451,7 @@
                  this.hurtHelmet(damagesource, f);
                  f *= 0.75F;
              }
-@@ -1269,7 +1488,7 @@
+@@ -1269,7 +1496,7 @@
                          d0 = (Math.random() - Math.random()) * 0.01D;
                      }
  
@@ -434,7 +460,7 @@
                      if (!flag) {
                          this.indicateDamage(d0, d1);
                      }
-@@ -1317,7 +1536,7 @@
+@@ -1317,7 +1544,7 @@
      }
  
      protected void blockedByShield(EntityLiving entityliving) {
@@ -443,7 +469,7 @@
      }
  
      private boolean checkTotemDeathProtection(DamageSource damagesource) {
-@@ -1328,19 +1547,32 @@
+@@ -1328,19 +1555,32 @@
              EnumHand[] aenumhand = EnumHand.values();
              int i = aenumhand.length;
  
@@ -480,7 +506,7 @@
                      EntityPlayer entityplayer = (EntityPlayer) this;
  
                      entityplayer.awardStat(StatisticList.ITEM_USED.get(Items.TOTEM_OF_UNDYING));
-@@ -1349,14 +1581,16 @@
+@@ -1349,14 +1589,16 @@
                  }
  
                  this.setHealth(1.0F);
@@ -502,7 +528,7 @@
          }
      }
  
-@@ -1463,14 +1697,22 @@
+@@ -1463,14 +1705,22 @@
                      IBlockData iblockdata = Blocks.WITHER_ROSE.defaultBlockState();
  
                      if (this.level().getBlockState(blockposition).isAir() && iblockdata.canSurvive(this.level(), blockposition)) {
@@ -527,7 +553,7 @@
                      this.level().addFreshEntity(entityitem);
                  }
              }
-@@ -1490,21 +1732,40 @@
+@@ -1490,21 +1740,40 @@
  
          boolean flag = this.lastHurtByPlayerTime > 0;
  
@@ -571,7 +597,7 @@
  
      }
  
-@@ -1533,13 +1794,25 @@
+@@ -1533,13 +1802,25 @@
      }
  
      public void knockback(double d0, double d1, double d2) {
@@ -600,7 +626,7 @@
          }
      }
  
-@@ -1596,6 +1869,28 @@
+@@ -1596,6 +1877,28 @@
          return itemstack.getEatingSound();
      }
  
@@ -629,7 +655,7 @@
      public Optional<BlockPosition> getLastClimbablePos() {
          return this.lastClimbablePos;
      }
-@@ -1642,9 +1937,14 @@
+@@ -1642,9 +1945,14 @@
          int i = this.calculateFallDamage(f, f1);
  
          if (i > 0) {
@@ -645,7 +671,7 @@
              return true;
          } else {
              return flag;
-@@ -1696,7 +1996,7 @@
+@@ -1696,7 +2004,7 @@
  
      protected float getDamageAfterArmorAbsorb(DamageSource damagesource, float f) {
          if (!damagesource.is(DamageTypeTags.BYPASSES_ARMOR)) {
@@ -654,7 +680,7 @@
              f = CombatMath.getDamageAfterAbsorb(f, (float) this.getArmorValue(), (float) this.getAttributeValue(GenericAttributes.ARMOR_TOUGHNESS));
          }
  
-@@ -1709,7 +2009,8 @@
+@@ -1709,7 +2017,8 @@
          } else {
              int i;
  
@@ -664,7 +690,7 @@
                  i = (this.getEffect(MobEffects.DAMAGE_RESISTANCE).getAmplifier() + 1) * 5;
                  int j = 25 - i;
                  float f1 = f * (float) j;
-@@ -1742,16 +2043,125 @@
+@@ -1742,16 +2051,125 @@
          }
      }
  
@@ -770,7 +796,7 @@
 +            if (damagesource.is(DamageTypeTags.DAMAGES_HELMET) && !this.getItemBySlot(EnumItemSlot.HEAD).isEmpty()) {
 +                this.hurtHelmet(damagesource, f);
 +            }
-+
+ 
 +            // Apply damage to armor
 +            if (!damagesource.is(DamageTypeTags.BYPASSES_ARMOR)) {
 +                float armorDamage = (float) (event.getDamage() + event.getDamage(DamageModifier.BLOCKING) + event.getDamage(DamageModifier.HARD_HAT));
@@ -791,14 +817,14 @@
 +            absorptionModifier = (float) -event.getDamage(DamageModifier.ABSORPTION);
 +            this.setAbsorptionAmount(Math.max(this.getAbsorptionAmount() - absorptionModifier, 0.0F));
 +            float f2 = absorptionModifier;
- 
++
 +            if (f2 > 0.0F && f2 < 3.4028235E37F && this instanceof EntityHuman) {
 +                ((EntityHuman) this).awardStat(StatisticList.DAMAGE_ABSORBED, Math.round(f2 * 10.0F));
 +            }
              if (f2 > 0.0F && f2 < 3.4028235E37F) {
                  Entity entity = damagesource.getEntity();
  
-@@ -1762,13 +2172,47 @@
+@@ -1762,13 +2180,47 @@
                  }
              }
  
@@ -848,7 +874,7 @@
      }
  
      public CombatTracker getCombatTracker() {
-@@ -1793,8 +2237,18 @@
+@@ -1793,8 +2245,18 @@
      }
  
      public final void setArrowCount(int i) {
@@ -868,7 +894,7 @@
  
      public final int getStingerCount() {
          return (Integer) this.entityData.get(EntityLiving.DATA_STINGER_COUNT_ID);
-@@ -2036,6 +2490,12 @@
+@@ -2036,6 +2498,12 @@
  
      public abstract ItemStack getItemBySlot(EnumItemSlot enumitemslot);
  
@@ -881,7 +907,7 @@
      @Override
      public abstract void setItemSlot(EnumItemSlot enumitemslot, ItemStack itemstack);
  
-@@ -2270,6 +2730,7 @@
+@@ -2270,6 +2738,7 @@
                  }
  
                  if (this.onGround() && !this.level().isClientSide) {
@@ -889,7 +915,7 @@
                      this.setSharedFlag(7, false);
                  }
              } else {
-@@ -2440,7 +2901,7 @@
+@@ -2440,7 +2909,7 @@
                  }
              }
  
@@ -898,7 +924,7 @@
              if (this.tickCount % 20 == 0) {
                  this.getCombatTracker().recheckStatus();
              }
-@@ -2537,7 +2998,7 @@
+@@ -2537,7 +3006,7 @@
          this.refreshDirtyAttributes();
      }
  
@@ -907,7 +933,7 @@
          Map<EnumItemSlot, ItemStack> map = this.collectEquipmentChanges();
  
          if (map != null) {
-@@ -2839,6 +3300,7 @@
+@@ -2839,6 +3308,7 @@
          }
  
          if (!this.level().isClientSide) {
@@ -915,7 +941,7 @@
              this.setSharedFlag(7, flag);
          }
  
-@@ -3029,13 +3491,20 @@
+@@ -3029,14 +3499,21 @@
  
      @Override
      public boolean isPickable() {
@@ -927,18 +953,19 @@
      public boolean isPushable() {
 -        return this.isAlive() && !this.isSpectator() && !this.onClimbable();
 +        return this.isAlive() && !this.isSpectator() && !this.onClimbable() && this.collides; // CraftBukkit
-+    }
-+
+     }
+ 
 +    // CraftBukkit start - collidable API
 +    @Override
 +    public boolean canCollideWithBukkit(Entity entity) {
 +        return isPushable() && this.collides != this.collidableExemptions.contains(entity.getUUID());
-     }
++    }
 +    // CraftBukkit end
- 
++
      @Override
      public float getYHeadRot() {
-@@ -3231,7 +3700,26 @@
+         return this.yHeadRot;
+@@ -3231,7 +3708,26 @@
              } else {
                  if (!this.useItem.isEmpty() && this.isUsingItem()) {
                      this.triggerItemUseEffects(this.useItem, 16);
@@ -966,7 +993,7 @@
  
                      if (itemstack != this.useItem) {
                          this.setItemInHand(enumhand, itemstack);
-@@ -3309,6 +3797,12 @@
+@@ -3309,6 +3805,12 @@
      }
  
      public boolean randomTeleport(double d0, double d1, double d2, boolean flag) {
@@ -979,7 +1006,7 @@
          double d3 = this.getX();
          double d4 = this.getY();
          double d5 = this.getZ();
-@@ -3333,16 +3827,41 @@
+@@ -3333,16 +3835,41 @@
              }
  
              if (flag2) {
@@ -1024,7 +1051,7 @@
          } else {
              if (flag) {
                  world.broadcastEntityEvent(this, (byte) 46);
-@@ -3354,7 +3873,7 @@
+@@ -3354,7 +3881,7 @@
                  entitycreature.getNavigation().stop();
              }
  
@@ -1033,7 +1060,7 @@
          }
      }
  
-@@ -3443,7 +3962,7 @@
+@@ -3443,7 +3970,7 @@
      }
  
      public void stopSleeping() {
@@ -1042,7 +1069,7 @@
          World world = this.level();
  
          java.util.Objects.requireNonNull(world);
-@@ -3477,7 +3996,7 @@
+@@ -3477,7 +4004,7 @@
  
      @Nullable
      public EnumDirection getBedOrientation() {
@@ -1051,7 +1078,7 @@
  
          return blockposition != null ? BlockBed.getBedOrientation(this.level(), blockposition) : null;
      }
-@@ -3525,7 +4044,7 @@
+@@ -3525,7 +4052,7 @@
                  Pair<MobEffect, Float> pair = (Pair) iterator.next();
  
                  if (!world.isClientSide && pair.getFirst() != null && world.random.nextFloat() < (Float) pair.getSecond()) {

paper-server/nms-patches/net/minecraft/world/entity/ai/behavior/warden/Digging.patch

@@ -0,0 +1,22 @@
+--- a/net/minecraft/world/entity/ai/behavior/warden/Digging.java
++++ b/net/minecraft/world/entity/ai/behavior/warden/Digging.java
+@@ -10,6 +10,10 @@
+ import net.minecraft.world.entity.ai.memory.MemoryStatus;
+ import net.minecraft.world.entity.monster.warden.Warden;
+ 
++// CraftBukkit start - imports
++import org.bukkit.event.entity.EntityRemoveEvent;
++// CraftBukkit end
++
+ public class Digging<E extends Warden> extends Behavior<E> {
+ 
+     public Digging(int i) {
+@@ -37,7 +41,7 @@
+ 
+     protected void stop(WorldServer worldserver, E e0, long i) {
+         if (e0.getRemovalReason() == null) {
+-            e0.remove(Entity.RemovalReason.DISCARDED);
++            e0.remove(Entity.RemovalReason.DISCARDED, EntityRemoveEvent.Cause.DESPAWN); // CraftBukkit - Add bukkit remove cause
+         }
+ 
+     }

paper-server/nms-patches/net/minecraft/world/entity/animal/Bucketable.patch

@@ -1,6 +1,6 @@
 --- a/net/minecraft/world/entity/animal/Bucketable.java
 +++ b/net/minecraft/world/entity/animal/Bucketable.java
-@@ -15,6 +15,14 @@
+@@ -15,6 +15,15 @@
  import net.minecraft.world.item.Items;
  import net.minecraft.world.level.World;
  
@@ -9,13 +9,14 @@
 +import net.minecraft.network.protocol.game.PacketPlayOutSpawnEntity;
 +import org.bukkit.craftbukkit.event.CraftEventFactory;
 +import org.bukkit.craftbukkit.inventory.CraftItemStack;
++import org.bukkit.event.entity.EntityRemoveEvent;
 +import org.bukkit.event.player.PlayerBucketEntityEvent;
 +// CraftBukkit end
 +
  public interface Bucketable {
  
      boolean fromBucket();
-@@ -94,10 +102,22 @@
+@@ -94,10 +103,22 @@
          ItemStack itemstack = entityhuman.getItemInHand(enumhand);
  
          if (itemstack.getItem() == Items.WATER_BUCKET && t0.isAlive()) {
@@ -39,3 +40,12 @@
              ItemStack itemstack2 = ItemLiquidUtil.createFilledResult(itemstack, entityhuman, itemstack1, false);
  
              entityhuman.setItemInHand(enumhand, itemstack2);
+@@ -107,7 +128,7 @@
+                 CriterionTriggers.FILLED_BUCKET.trigger((EntityPlayer) entityhuman, itemstack1);
+             }
+ 
+-            t0.discard();
++            t0.discard(EntityRemoveEvent.Cause.PICKUP); // CraftBukkit - add Bukkit remove cause
+             return Optional.of(EnumInteractionResult.sidedSuccess(world.isClientSide));
+         } else {
+             return Optional.empty();

paper-server/nms-patches/net/minecraft/world/entity/animal/EntityDolphin.patch

@@ -1,12 +1,13 @@
 --- a/net/minecraft/world/entity/animal/EntityDolphin.java
 +++ b/net/minecraft/world/entity/animal/EntityDolphin.java
-@@ -61,8 +61,19 @@
+@@ -61,8 +61,20 @@
  import net.minecraft.world.level.pathfinder.PathMode;
  import net.minecraft.world.phys.Vec3D;
  
 +// CraftBukkit start
 +import org.bukkit.craftbukkit.event.CraftEventFactory;
 +import org.bukkit.event.entity.EntityPotionEffectEvent;
++import org.bukkit.event.entity.EntityRemoveEvent;
 +// CraftBukkit end
 +
  public class EntityDolphin extends EntityWaterAnimal {
@@ -20,7 +21,7 @@
      private static final DataWatcherObject<BlockPosition> TREASURE_POS = DataWatcher.defineId(EntityDolphin.class, DataWatcherRegistry.BLOCK_POS);
      private static final DataWatcherObject<Boolean> GOT_FISH = DataWatcher.defineId(EntityDolphin.class, DataWatcherRegistry.BOOLEAN);
      private static final DataWatcherObject<Integer> MOISTNESS_LEVEL = DataWatcher.defineId(EntityDolphin.class, DataWatcherRegistry.INT);
-@@ -185,7 +196,7 @@
+@@ -185,7 +197,7 @@
  
      @Override
      public int getMaxAirSupply() {
@@ -29,7 +30,7 @@
      }
  
      @Override
-@@ -226,6 +237,12 @@
+@@ -226,11 +238,17 @@
              ItemStack itemstack = entityitem.getItem();
  
              if (this.canHoldItem(itemstack)) {
@@ -42,7 +43,13 @@
                  this.onItemPickup(entityitem);
                  this.setItemSlot(EnumItemSlot.MAINHAND, itemstack);
                  this.setGuaranteedDrop(EnumItemSlot.MAINHAND);
-@@ -484,7 +501,7 @@
+                 this.take(entityitem, itemstack.getCount());
+-                entityitem.discard();
++                entityitem.discard(EntityRemoveEvent.Cause.PICKUP); // CraftBukkit - add Bukkit remove cause
+             }
+         }
+ 
+@@ -484,7 +502,7 @@
  
          @Override
          public void start() {
@@ -51,7 +58,7 @@
          }
  
          @Override
-@@ -503,7 +520,7 @@
+@@ -503,7 +521,7 @@
              }
  
              if (this.player.isSwimming() && this.player.level().random.nextInt(6) == 0) {

paper-server/nms-patches/net/minecraft/world/entity/animal/EntityFox.patch

@@ -1,6 +1,17 @@
 --- a/net/minecraft/world/entity/animal/EntityFox.java
 +++ b/net/minecraft/world/entity/animal/EntityFox.java
-@@ -523,7 +523,8 @@
+@@ -94,6 +94,10 @@
+ import net.minecraft.world.phys.Vec3D;
+ import org.joml.Vector3f;
+ 
++// CraftBukkit start
++import org.bukkit.event.entity.EntityRemoveEvent;
++// CraftBukkit end
++
+ public class EntityFox extends EntityAnimal implements VariantHolder<EntityFox.Type> {
+ 
+     private static final DataWatcherObject<Integer> DATA_TYPE_ID = DataWatcher.defineId(EntityFox.class, DataWatcherRegistry.INT);
+@@ -523,7 +527,8 @@
      protected void pickUpItem(EntityItem entityitem) {
          ItemStack itemstack = entityitem.getItem();
  
@@ -10,7 +21,16 @@
              int i = itemstack.getCount();
  
              if (i > 1) {
-@@ -883,6 +884,16 @@
+@@ -535,7 +540,7 @@
+             this.setItemSlot(EnumItemSlot.MAINHAND, itemstack.split(1));
+             this.setGuaranteedDrop(EnumItemSlot.MAINHAND);
+             this.take(entityitem, itemstack.getCount());
+-            entityitem.discard();
++            entityitem.discard(EntityRemoveEvent.Cause.PICKUP); // CraftBukkit - add Bukkit remove cause
+             this.ticksSinceEaten = 0;
+         }
+ 
+@@ -883,6 +888,16 @@
                  if (entityplayer1 != null && entityplayer != entityplayer1) {
                      entityfox.addTrustedUUID(entityplayer1.getUUID());
                  }
@@ -27,7 +47,7 @@
  
                  if (entityplayer2 != null) {
                      entityplayer2.awardStat(StatisticList.ANIMALS_BRED);
-@@ -893,12 +904,14 @@
+@@ -893,12 +908,14 @@
                  this.partner.setAge(6000);
                  this.animal.resetLove();
                  this.partner.resetLove();
@@ -46,7 +66,7 @@
                  }
  
              }
-@@ -1294,6 +1307,11 @@
+@@ -1294,6 +1311,11 @@
              int i = (Integer) iblockdata.getValue(BlockSweetBerryBush.AGE);
  
              iblockdata.setValue(BlockSweetBerryBush.AGE, 1);
@@ -58,7 +78,7 @@
              int j = 1 + EntityFox.this.level().random.nextInt(2) + (i == 3 ? 1 : 0);
              ItemStack itemstack = EntityFox.this.getItemBySlot(EnumItemSlot.MAINHAND);
  
-@@ -1451,7 +1469,7 @@
+@@ -1451,7 +1473,7 @@
          private EntityLiving trustedLastHurt;
          private int timestamp;
  

paper-server/nms-patches/net/minecraft/world/entity/animal/EntityMushroomCow.patch

@@ -1,6 +1,6 @@
 --- a/net/minecraft/world/entity/animal/EntityMushroomCow.java
 +++ b/net/minecraft/world/entity/animal/EntityMushroomCow.java
-@@ -42,13 +42,20 @@
+@@ -42,13 +42,21 @@
  import net.minecraft.world.level.block.state.IBlockData;
  import net.minecraft.world.level.gameevent.GameEvent;
  
@@ -8,6 +8,7 @@
 +import org.bukkit.Bukkit;
 +import org.bukkit.craftbukkit.event.CraftEventFactory;
 +import org.bukkit.event.entity.EntityDropItemEvent;
++import org.bukkit.event.entity.EntityRemoveEvent;
 +import org.bukkit.event.entity.EntityTransformEvent;
 +// CraftBukkit end
 +
@@ -22,7 +23,7 @@
      @Nullable
      private UUID lastLightningBoltUUID;
  
-@@ -114,6 +121,11 @@
+@@ -114,6 +122,11 @@
              this.playSound(soundeffect, 1.0F, 1.0F);
              return EnumInteractionResult.sidedSuccess(this.level().isClientSide);
          } else if (itemstack.is(Items.SHEARS) && this.readyForShearing()) {
@@ -34,7 +35,7 @@
              this.shear(SoundCategory.PLAYERS);
              this.gameEvent(GameEvent.SHEAR, entityhuman);
              if (!this.level().isClientSide) {
-@@ -161,7 +173,7 @@
+@@ -161,7 +174,7 @@
  
              if (entitycow != null) {
                  ((WorldServer) this.level()).sendParticles(Particles.EXPLOSION, this.getX(), this.getY(0.5D), this.getZ(), 1, 0.0D, 0.0D, 0.0D, 0.0D);
@@ -43,7 +44,7 @@
                  entitycow.moveTo(this.getX(), this.getY(), this.getZ(), this.getYRot(), this.getXRot());
                  entitycow.setHealth(this.getHealth());
                  entitycow.yBodyRot = this.yBodyRot;
-@@ -175,10 +187,25 @@
+@@ -175,10 +188,25 @@
                  }
  
                  entitycow.setInvulnerable(this.isInvulnerable());
@@ -54,7 +55,7 @@
 +                }
 +                this.level().addFreshEntity(entitycow, org.bukkit.event.entity.CreatureSpawnEvent.SpawnReason.SHEARED);
 +
-+                this.discard(); // CraftBukkit - from above
++                this.discard(EntityRemoveEvent.Cause.TRANSFORMATION); // CraftBukkit - from above and add Bukkit remove cause
 +                // CraftBukkit end
  
                  for (int i = 0; i < 5; ++i) {

paper-server/nms-patches/net/minecraft/world/entity/animal/EntityPanda.patch

@@ -1,18 +1,19 @@
 --- a/net/minecraft/world/entity/animal/EntityPanda.java
 +++ b/net/minecraft/world/entity/animal/EntityPanda.java
-@@ -67,6 +67,11 @@
+@@ -67,6 +67,12 @@
  import net.minecraft.world.phys.Vec3D;
  import org.joml.Vector3f;
  
 +// CraftBukkit start;
 +import org.bukkit.craftbukkit.event.CraftEventFactory;
++import org.bukkit.event.entity.EntityRemoveEvent;
 +import org.bukkit.event.entity.EntityTargetEvent;
 +// CraftBukkit end
 +
  public class EntityPanda extends EntityAnimal {
  
      private static final DataWatcherObject<Integer> UNHAPPY_COUNTER = DataWatcher.defineId(EntityPanda.class, DataWatcherRegistry.INT);
-@@ -534,7 +539,7 @@
+@@ -534,14 +540,14 @@
  
      @Override
      protected void pickUpItem(EntityItem entityitem) {
@@ -21,7 +22,15 @@
              this.onItemPickup(entityitem);
              ItemStack itemstack = entityitem.getItem();
  
-@@ -870,10 +875,10 @@
+             this.setItemSlot(EnumItemSlot.MAINHAND, itemstack);
+             this.setGuaranteedDrop(EnumItemSlot.MAINHAND);
+             this.take(entityitem, itemstack.getCount());
+-            entityitem.discard();
++            entityitem.discard(EntityRemoveEvent.Cause.PICKUP); // CraftBukkit - add Bukkit remove cause
+         }
+ 
+     }
+@@ -870,10 +876,10 @@
          private final EntityPanda panda;
  
          public c(EntityPanda entitypanda, Class<T> oclass, float f, double d0, double d1) {
@@ -35,7 +44,7 @@
              this.panda = entitypanda;
          }
  
-@@ -1112,7 +1117,7 @@
+@@ -1112,7 +1118,7 @@
          @Override
          protected void alertOther(EntityInsentient entityinsentient, EntityLiving entityliving) {
              if (entityinsentient instanceof EntityPanda && entityinsentient.isAggressive()) {

paper-server/nms-patches/net/minecraft/world/entity/animal/EntityPerchable.patch

@@ -0,0 +1,22 @@
+--- a/net/minecraft/world/entity/animal/EntityPerchable.java
++++ b/net/minecraft/world/entity/animal/EntityPerchable.java
+@@ -6,6 +6,10 @@
+ import net.minecraft.world.entity.EntityTypes;
+ import net.minecraft.world.level.World;
+ 
++// CraftBukkit start
++import org.bukkit.event.entity.EntityRemoveEvent;
++// CraftBukkit end
++
+ public abstract class EntityPerchable extends EntityTameableAnimal {
+ 
+     private static final int RIDE_COOLDOWN = 100;
+@@ -21,7 +25,7 @@
+         nbttagcompound.putString("id", this.getEncodeId());
+         this.saveWithoutId(nbttagcompound);
+         if (entityplayer.setEntityOnShoulder(nbttagcompound)) {
+-            this.discard();
++            this.discard(EntityRemoveEvent.Cause.PICKUP); // CraftBukkit - add Bukkit remove cause
+             return true;
+         } else {
+             return false;

paper-server/nms-patches/net/minecraft/world/entity/animal/EntityPig.patch

@@ -1,21 +1,23 @@
 --- a/net/minecraft/world/entity/animal/EntityPig.java
 +++ b/net/minecraft/world/entity/animal/EntityPig.java
-@@ -51,6 +51,10 @@
+@@ -51,6 +51,11 @@
  import net.minecraft.world.phys.Vec3D;
  import org.joml.Vector3f;
  
 +// CraftBukkit start
 +import org.bukkit.craftbukkit.event.CraftEventFactory;
++import org.bukkit.event.entity.EntityRemoveEvent;
 +// CraftBukkit end
 +
  public class EntityPig extends EntityAnimal implements ISteerable, ISaddleable {
  
      private static final DataWatcherObject<Boolean> DATA_SADDLE_ID = DataWatcher.defineId(EntityPig.class, DataWatcherRegistry.BOOLEAN);
-@@ -252,7 +256,13 @@
+@@ -252,8 +257,14 @@
                  }
  
                  entitypigzombie.setPersistenceRequired();
 -                worldserver.addFreshEntity(entitypigzombie);
+-                this.discard();
 +                // CraftBukkit start
 +                if (CraftEventFactory.callPigZapEvent(this, entitylightning, entitypigzombie).isCancelled()) {
 +                    return;
@@ -23,6 +25,7 @@
 +                // CraftBukkit - added a reason for spawning this creature
 +                worldserver.addFreshEntity(entitypigzombie, org.bukkit.event.entity.CreatureSpawnEvent.SpawnReason.LIGHTNING);
 +                // CraftBukkit end
-                 this.discard();
++                this.discard(EntityRemoveEvent.Cause.TRANSFORMATION); // CraftBukkit - add Bukkit remove cause
              } else {
                  super.thunderHit(worldserver, entitylightning);
+             }

paper-server/nms-patches/net/minecraft/world/entity/animal/frog/ShootTongue.patch

@@ -0,0 +1,40 @@
+--- a/net/minecraft/world/entity/animal/frog/ShootTongue.java
++++ b/net/minecraft/world/entity/animal/frog/ShootTongue.java
+@@ -20,6 +20,10 @@
+ import net.minecraft.world.level.pathfinder.PathEntity;
+ import net.minecraft.world.phys.Vec3D;
+ 
++// CraftBukkit start
++import org.bukkit.event.entity.EntityRemoveEvent;
++// CraftBukkit end
++
+ public class ShootTongue extends Behavior<Frog> {
+ 
+     public static final int TIME_OUT_DURATION = 100;
+@@ -64,7 +68,7 @@
+ 
+         BehaviorUtil.lookAtEntity(frog, entityliving);
+         frog.setTongueTarget(entityliving);
+-        frog.getBrain().setMemory(MemoryModuleType.WALK_TARGET, (Object) (new MemoryTarget(entityliving.position(), 2.0F, 0)));
++        frog.getBrain().setMemory(MemoryModuleType.WALK_TARGET, (new MemoryTarget(entityliving.position(), 2.0F, 0))); // CraftBukkit - decompile error
+         this.calculatePathCounter = 10;
+         this.state = ShootTongue.a.MOVE_TO_TARGET;
+     }
+@@ -85,7 +89,7 @@
+             if (entity.isAlive()) {
+                 frog.doHurtTarget(entity);
+                 if (!entity.isAlive()) {
+-                    entity.remove(Entity.RemovalReason.KILLED);
++                    entity.remove(Entity.RemovalReason.KILLED, EntityRemoveEvent.Cause.DEATH); // CraftBukkit - add Bukkit remove cause
+                 }
+             }
+         }
+@@ -106,7 +110,7 @@
+                     this.eatAnimationTimer = 0;
+                     this.state = ShootTongue.a.CATCH_ANIMATION;
+                 } else if (this.calculatePathCounter <= 0) {
+-                    frog.getBrain().setMemory(MemoryModuleType.WALK_TARGET, (Object) (new MemoryTarget(entityliving.position(), 2.0F, 0)));
++                    frog.getBrain().setMemory(MemoryModuleType.WALK_TARGET, (new MemoryTarget(entityliving.position(), 2.0F, 0))); // CraftBukkit - decompile error
+                     this.calculatePathCounter = 10;
+                 } else {
+                     --this.calculatePathCounter;

paper-server/nms-patches/net/minecraft/world/entity/animal/frog/Tadpole.patch

@@ -1,6 +1,17 @@
 --- a/net/minecraft/world/entity/animal/frog/Tadpole.java
 +++ b/net/minecraft/world/entity/animal/frog/Tadpole.java
-@@ -68,7 +68,7 @@
+@@ -35,6 +35,10 @@
+ import net.minecraft.world.item.Items;
+ import net.minecraft.world.level.World;
+ 
++// CraftBukkit start
++import org.bukkit.event.entity.EntityRemoveEvent;
++// CraftBukkit end
++
+ public class Tadpole extends EntityFish {
+ 
+     @VisibleForTesting
+@@ -68,7 +72,7 @@
  
      @Override
      public BehaviorController<Tadpole> getBrain() {
@@ -9,7 +20,7 @@
      }
  
      @Override
-@@ -233,8 +233,14 @@
+@@ -233,9 +237,15 @@
                  }
  
                  frog.setPersistenceRequired();
@@ -21,7 +32,9 @@
 +                // CraftBukkit end
                  this.playSound(SoundEffects.TADPOLE_GROW_UP, 0.15F, 1.0F);
 -                worldserver.addFreshEntityWithPassengers(frog);
+-                this.discard();
 +                worldserver.addFreshEntityWithPassengers(frog, org.bukkit.event.entity.CreatureSpawnEvent.SpawnReason.METAMORPHOSIS); // CraftBukkit - add SpawnReason
-                 this.discard();
++                this.discard(EntityRemoveEvent.Cause.TRANSFORMATION); // CraftBukkit - add Bukkit remove cause
              }
          }
+ 

paper-server/nms-patches/net/minecraft/world/entity/animal/horse/EntityHorseSkeleton.patch

@@ -0,0 +1,22 @@
+--- a/net/minecraft/world/entity/animal/horse/EntityHorseSkeleton.java
++++ b/net/minecraft/world/entity/animal/horse/EntityHorseSkeleton.java
+@@ -27,6 +27,10 @@
+ import net.minecraft.world.level.World;
+ import org.joml.Vector3f;
+ 
++// CraftBukkit start
++import org.bukkit.event.entity.EntityRemoveEvent;
++// CraftBukkit end
++
+ public class EntityHorseSkeleton extends EntityHorseAbstract {
+ 
+     private final PathfinderGoalHorseTrap skeletonTrapGoal = new PathfinderGoalHorseTrap(this);
+@@ -126,7 +130,7 @@
+     public void aiStep() {
+         super.aiStep();
+         if (this.isTrap() && this.trapTime++ >= 18000) {
+-            this.discard();
++            this.discard(EntityRemoveEvent.Cause.DESPAWN); // CraftBukkit - add Bukkit remove cause
+         }
+ 
+     }

paper-server/nms-patches/net/minecraft/world/entity/animal/horse/EntityLlamaTrader.patch

@@ -1,6 +1,26 @@
 --- a/net/minecraft/world/entity/animal/horse/EntityLlamaTrader.java
 +++ b/net/minecraft/world/entity/animal/horse/EntityLlamaTrader.java
-@@ -153,7 +153,7 @@
+@@ -19,6 +19,10 @@
+ import net.minecraft.world.level.World;
+ import net.minecraft.world.level.WorldAccess;
+ 
++// CraftBukkit start
++import org.bukkit.event.entity.EntityRemoveEvent;
++// CraftBukkit end
++
+ public class EntityLlamaTrader extends EntityLlama {
+ 
+     private int despawnDelay = 47999;
+@@ -87,7 +91,7 @@
+             this.despawnDelay = this.isLeashedToWanderingTrader() ? ((EntityVillagerTrader) this.getLeashHolder()).getDespawnDelay() - 1 : this.despawnDelay - 1;
+             if (this.despawnDelay <= 0) {
+                 this.dropLeash(true, false);
+-                this.discard();
++                this.discard(EntityRemoveEvent.Cause.DESPAWN); // CraftBukkit - add Bukkit remove cause
+             }
+ 
+         }
+@@ -153,7 +157,7 @@
  
          @Override
          public void start() {

paper-server/nms-patches/net/minecraft/world/entity/boss/enderdragon/EntityEnderCrystal.patch

@@ -1,18 +1,19 @@
 --- a/net/minecraft/world/entity/boss/enderdragon/EntityEnderCrystal.java
 +++ b/net/minecraft/world/entity/boss/enderdragon/EntityEnderCrystal.java
-@@ -20,6 +20,11 @@
+@@ -20,6 +20,12 @@
  import net.minecraft.world.level.block.BlockFireAbstract;
  import net.minecraft.world.level.dimension.end.EnderDragonBattle;
  
 +// CraftBukkit start
 +import org.bukkit.craftbukkit.event.CraftEventFactory;
++import org.bukkit.event.entity.EntityRemoveEvent;
 +import org.bukkit.event.entity.ExplosionPrimeEvent;
 +// CraftBukkit end
 +
  public class EntityEnderCrystal extends Entity {
  
      private static final DataWatcherObject<Optional<BlockPosition>> DATA_BEAM_TARGET = DataWatcher.defineId(EntityEnderCrystal.class, DataWatcherRegistry.OPTIONAL_BLOCK_POS);
-@@ -55,7 +60,11 @@
+@@ -55,7 +61,11 @@
              BlockPosition blockposition = this.blockPosition();
  
              if (((WorldServer) this.level()).getDragonFight() != null && this.level().getBlockState(blockposition).isAir()) {
@@ -25,16 +26,16 @@
              }
          }
  
-@@ -95,11 +104,23 @@
+@@ -95,12 +105,26 @@
              return false;
          } else {
              if (!this.isRemoved() && !this.level().isClientSide) {
+-                this.remove(Entity.RemovalReason.KILLED);
 +                // CraftBukkit start - All non-living entities need this
 +                if (CraftEventFactory.handleNonLivingEntityDamageEvent(this, damagesource, f, false)) {
 +                    return false;
 +                }
 +                // CraftBukkit end
-                 this.remove(Entity.RemovalReason.KILLED);
                  if (!damagesource.is(DamageTypeTags.IS_EXPLOSION)) {
                      DamageSource damagesource1 = damagesource.getEntity() != null ? this.damageSources().explosion(this, damagesource.getEntity()) : null;
  
@@ -42,11 +43,15 @@
 +                    // CraftBukkit start
 +                    ExplosionPrimeEvent event = CraftEventFactory.callExplosionPrimeEvent(this, 6.0F, false);
 +                    if (event.isCancelled()) {
-+                        this.unsetRemoved();
 +                        return false;
 +                    }
++
++                    this.remove(Entity.RemovalReason.KILLED, EntityRemoveEvent.Cause.EXPLODE); // CraftBukkit - add Bukkit remove cause
 +                    this.level().explode(this, damagesource1, (ExplosionDamageCalculator) null, this.getX(), this.getY(), this.getZ(), event.getRadius(), event.getFire(), World.a.BLOCK);
-+                    // CraftBukkit end
++                } else {
++                    this.remove(Entity.RemovalReason.KILLED, EntityRemoveEvent.Cause.DEATH); // CraftBukkit - add Bukkit remove cause
                  }
++                // CraftBukkit end
  
                  this.onDestroyedBy(damagesource);
+             }

paper-server/nms-patches/net/minecraft/world/entity/boss/enderdragon/EntityEnderDragon.patch

@@ -1,6 +1,6 @@
 --- a/net/minecraft/world/entity/boss/enderdragon/EntityEnderDragon.java
 +++ b/net/minecraft/world/entity/boss/enderdragon/EntityEnderDragon.java
-@@ -53,6 +53,19 @@
+@@ -53,6 +53,20 @@
  import org.joml.Vector3f;
  import org.slf4j.Logger;
  
@@ -15,12 +15,13 @@
 +import org.bukkit.craftbukkit.block.CraftBlock;
 +import org.bukkit.event.entity.EntityExplodeEvent;
 +import org.bukkit.event.entity.EntityRegainHealthEvent;
++import org.bukkit.event.entity.EntityRemoveEvent;
 +// CraftBukkit end
 +
  public class EntityEnderDragon extends EntityInsentient implements IMonster {
  
      private static final Logger LOGGER = LogUtils.getLogger();
-@@ -90,6 +103,7 @@
+@@ -90,6 +104,7 @@
      private final PathPoint[] nodes;
      private final int[] nodeAdjacency;
      private final Path openSet;
@@ -28,7 +29,7 @@
  
      public EntityEnderDragon(EntityTypes<? extends EntityEnderDragon> entitytypes, World world) {
          super(EntityTypes.ENDER_DRAGON, world);
-@@ -111,6 +125,7 @@
+@@ -111,6 +126,7 @@
          this.noPhysics = true;
          this.noCulling = true;
          this.phaseManager = new DragonControllerManager(this);
@@ -36,7 +37,7 @@
      }
  
      public void setDragonFight(EnderDragonBattle enderdragonbattle) {
-@@ -258,7 +273,7 @@
+@@ -258,7 +274,7 @@
  
                      Vec3D vec3d1 = idragoncontroller.getFlyTargetLocation();
  
@@ -45,7 +46,7 @@
                          double d0 = vec3d1.x - this.getX();
                          double d1 = vec3d1.y - this.getY();
                          double d2 = vec3d1.z - this.getZ();
-@@ -399,7 +414,14 @@
+@@ -399,7 +415,14 @@
              if (this.nearestCrystal.isRemoved()) {
                  this.nearestCrystal = null;
              } else if (this.tickCount % 10 == 0 && this.getHealth() < this.getMaxHealth()) {
@@ -61,7 +62,7 @@
              }
          }
  
-@@ -474,6 +496,9 @@
+@@ -474,6 +497,9 @@
          int j1 = MathHelper.floor(axisalignedbb.maxZ);
          boolean flag = false;
          boolean flag1 = false;
@@ -71,7 +72,7 @@
  
          for (int k1 = i; k1 <= l; ++k1) {
              for (int l1 = j; l1 <= i1; ++l1) {
-@@ -483,7 +508,11 @@
+@@ -483,7 +509,11 @@
  
                      if (!iblockdata.isAir() && !iblockdata.is(TagsBlock.DRAGON_TRANSPARENT)) {
                          if (this.level().getGameRules().getBoolean(GameRules.RULE_MOBGRIEFING) && !iblockdata.is(TagsBlock.DRAGON_IMMUNE)) {
@@ -84,7 +85,7 @@
                          } else {
                              flag = true;
                          }
-@@ -492,6 +521,51 @@
+@@ -492,6 +522,51 @@
              }
          }
  
@@ -136,7 +137,16 @@
          if (flag1) {
              BlockPosition blockposition1 = new BlockPosition(i + this.random.nextInt(l - i + 1), j + this.random.nextInt(i1 - j + 1), k + this.random.nextInt(j1 - k + 1));
  
-@@ -556,6 +630,21 @@
+@@ -547,7 +622,7 @@
+ 
+     @Override
+     public void kill() {
+-        this.remove(Entity.RemovalReason.KILLED);
++        this.remove(Entity.RemovalReason.KILLED, EntityRemoveEvent.Cause.DEATH); // CraftBukkit - add Bukkit remove cause
+         this.gameEvent(GameEvent.ENTITY_DIE);
+         if (this.dragonFight != null) {
+             this.dragonFight.updateDragon(this);
+@@ -556,6 +631,21 @@
  
      }
  
@@ -158,7 +168,7 @@
      @Override
      protected void tickDeath() {
          if (this.dragonFight != null) {
-@@ -571,15 +660,20 @@
+@@ -571,15 +661,20 @@
              this.level().addParticle(Particles.EXPLOSION_EMITTER, this.getX() + (double) f, this.getY() + 2.0D + (double) f1, this.getZ() + (double) f2, 0.0D, 0.0D, 0.0D);
          }
  
@@ -180,7 +190,7 @@
                  EntityExperienceOrb.award((WorldServer) this.level(), this.position(), MathHelper.floor((float) short0 * 0.08F));
              }
  
-@@ -590,7 +684,7 @@
+@@ -590,7 +685,7 @@
  
          this.move(EnumMoveType.SELF, new Vec3D(0.0D, 0.10000000149011612D, 0.0D));
          if (this.dragonDeathTime == 200 && this.level() instanceof WorldServer) {
@@ -189,7 +199,16 @@
                  EntityExperienceOrb.award((WorldServer) this.level(), this.position(), MathHelper.floor((float) short0 * 0.2F));
              }
  
-@@ -811,6 +905,7 @@
+@@ -598,7 +693,7 @@
+                 this.dragonFight.setDragonKilled(this);
+             }
+ 
+-            this.remove(Entity.RemovalReason.KILLED);
++            this.remove(Entity.RemovalReason.KILLED, EntityRemoveEvent.Cause.DEATH); // CraftBukkit - add Bukkit remove cause
+             this.gameEvent(GameEvent.ENTITY_DIE);
+         }
+ 
+@@ -811,6 +906,7 @@
          super.addAdditionalSaveData(nbttagcompound);
          nbttagcompound.putInt("DragonPhase", this.phaseManager.getCurrentPhase().getPhase().getId());
          nbttagcompound.putInt("DragonDeathTime", this.dragonDeathTime);
@@ -197,7 +216,7 @@
      }
  
      @Override
-@@ -824,6 +919,11 @@
+@@ -824,6 +920,11 @@
              this.dragonDeathTime = nbttagcompound.getInt("DragonDeathTime");
          }
  

paper-server/nms-patches/net/minecraft/world/entity/boss/enderdragon/phases/DragonControllerLandedFlame.patch

@@ -0,0 +1,22 @@
+--- a/net/minecraft/world/entity/boss/enderdragon/phases/DragonControllerLandedFlame.java
++++ b/net/minecraft/world/entity/boss/enderdragon/phases/DragonControllerLandedFlame.java
+@@ -10,6 +10,10 @@
+ import net.minecraft.world.entity.boss.enderdragon.EntityEnderDragon;
+ import net.minecraft.world.phys.Vec3D;
+ 
++// CraftBukkit start
++import org.bukkit.event.entity.EntityRemoveEvent;
++// CraftBukkit end
++
+ public class DragonControllerLandedFlame extends AbstractDragonControllerLanded {
+ 
+     private static final int FLAME_DURATION = 200;
+@@ -99,7 +103,7 @@
+     @Override
+     public void end() {
+         if (this.flame != null) {
+-            this.flame.discard();
++            this.flame.discard(EntityRemoveEvent.Cause.DESPAWN); // CraftBukkit - add Bukkit remove cause
+             this.flame = null;
+         }
+ 

paper-server/nms-patches/net/minecraft/world/entity/boss/wither/EntityWither.patch

@@ -1,6 +1,6 @@
 --- a/net/minecraft/world/entity/boss/wither/EntityWither.java
 +++ b/net/minecraft/world/entity/boss/wither/EntityWither.java
-@@ -55,6 +55,17 @@
+@@ -55,6 +55,18 @@
  import net.minecraft.world.level.block.state.IBlockData;
  import net.minecraft.world.phys.Vec3D;
  
@@ -11,6 +11,7 @@
 +import net.minecraft.world.level.block.Blocks;
 +import org.bukkit.craftbukkit.event.CraftEventFactory;
 +import org.bukkit.event.entity.EntityRegainHealthEvent;
++import org.bukkit.event.entity.EntityRemoveEvent;
 +import org.bukkit.event.entity.EntityTargetEvent;
 +import org.bukkit.event.entity.ExplosionPrimeEvent;
 +// CraftBukkit end
@@ -18,7 +19,7 @@
  public class EntityWither extends EntityMonster implements PowerableMob, IRangedEntity {
  
      private static final DataWatcherObject<Integer> DATA_TARGET_A = DataWatcher.defineId(EntityWither.class, DataWatcherRegistry.INT);
-@@ -248,15 +259,40 @@
+@@ -248,15 +260,40 @@
              i = this.getInvulnerableTicks() - 1;
              this.bossEvent.setProgress(1.0F - (float) i / 220.0F);
              if (i <= 0) {
@@ -62,7 +63,7 @@
              }
  
          } else {
-@@ -301,6 +337,7 @@
+@@ -301,6 +338,7 @@
                          if (!list.isEmpty()) {
                              EntityLiving entityliving1 = (EntityLiving) list.get(this.random.nextInt(list.size()));
  
@@ -70,7 +71,7 @@
                              this.setAlternativeTarget(i, entityliving1.getId());
                          }
                      }
-@@ -331,6 +368,11 @@
+@@ -331,6 +369,11 @@
                                  IBlockData iblockdata = this.level().getBlockState(blockposition);
  
                                  if (canDestroy(iblockdata)) {
@@ -82,7 +83,7 @@
                                      flag = this.level().destroyBlock(blockposition, true, this) || flag;
                                  }
                              }
-@@ -344,7 +386,7 @@
+@@ -344,7 +387,7 @@
              }
  
              if (this.tickCount % 20 == 0) {
@@ -91,3 +92,12 @@
              }
  
              this.bossEvent.setProgress(this.getHealth() / this.getMaxHealth());
+@@ -498,7 +541,7 @@
+     @Override
+     public void checkDespawn() {
+         if (this.level().getDifficulty() == EnumDifficulty.PEACEFUL && this.shouldDespawnInPeaceful()) {
+-            this.discard();
++            this.discard(EntityRemoveEvent.Cause.DESPAWN); // CraftBukkit - add Bukkit remove cause
+         } else {
+             this.noActionTime = 0;
+         }

paper-server/nms-patches/net/minecraft/world/entity/decoration/EntityArmorStand.patch

@@ -1,10 +1,11 @@
 --- a/net/minecraft/world/entity/decoration/EntityArmorStand.java
 +++ b/net/minecraft/world/entity/decoration/EntityArmorStand.java
-@@ -44,6 +44,15 @@
+@@ -44,6 +44,16 @@
  import net.minecraft.world.phys.AxisAlignedBB;
  import net.minecraft.world.phys.Vec3D;
  
 +// CraftBukkit start
++import org.bukkit.event.entity.EntityRemoveEvent;
 +import org.bukkit.inventory.EquipmentSlot;
 +import org.bukkit.craftbukkit.CraftEquipmentSlot;
 +import org.bukkit.craftbukkit.inventory.CraftItemStack;
@@ -16,7 +17,7 @@
  public class EntityArmorStand extends EntityLiving {
  
      public static final int WOBBLE_TIME = 5;
-@@ -106,6 +115,13 @@
+@@ -106,6 +116,13 @@
          this.setPos(d0, d1, d2);
      }
  
@@ -30,7 +31,7 @@
      @Override
      public void refreshDimensions() {
          double d0 = this.getX();
-@@ -161,13 +177,20 @@
+@@ -161,13 +178,20 @@
  
      @Override
      public void setItemSlot(EnumItemSlot enumitemslot, ItemStack itemstack) {
@@ -53,7 +54,7 @@
          }
  
      }
-@@ -402,7 +425,25 @@
+@@ -402,7 +426,25 @@
              return false;
          } else if (itemstack1.isEmpty() && (this.disabledSlots & 1 << enumitemslot.getFilterFlag() + 16) != 0) {
              return false;
@@ -80,7 +81,7 @@
              this.setItemSlot(enumitemslot, itemstack.copyWithCount(1));
              return true;
          } else if (!itemstack.isEmpty() && itemstack.getCount() > 1) {
-@@ -417,15 +458,26 @@
+@@ -417,15 +459,26 @@
              entityhuman.setItemInHand(enumhand, itemstack1);
              return true;
          }
@@ -108,16 +109,16 @@
                  if (damagesource.is(DamageTypeTags.IS_EXPLOSION)) {
                      this.brokenByAnything(damagesource);
                      this.kill();
-@@ -473,7 +525,7 @@
+@@ -473,7 +526,7 @@
                              } else {
                                  this.brokenByPlayer(damagesource);
                                  this.showBreakingParticles();
 -                                this.kill();
-+                                this.discard(); // CraftBukkit - SPIGOT-4890: remain as this.discard() since above damagesource method will call death event
++                                this.discard(EntityRemoveEvent.Cause.DEATH); // CraftBukkit - SPIGOT-4890: remain as this.discard() since above damagesource method will call death event
                              }
  
                              return true;
-@@ -541,13 +593,13 @@
+@@ -541,13 +594,13 @@
              itemstack.setHoverName(this.getCustomName());
          }
  
@@ -133,7 +134,7 @@
  
          ItemStack itemstack;
          int i;
-@@ -555,7 +607,7 @@
+@@ -555,7 +608,7 @@
          for (i = 0; i < this.handItems.size(); ++i) {
              itemstack = (ItemStack) this.handItems.get(i);
              if (!itemstack.isEmpty()) {
@@ -142,7 +143,7 @@
                  this.handItems.set(i, ItemStack.EMPTY);
              }
          }
-@@ -563,10 +615,11 @@
+@@ -563,10 +616,11 @@
          for (i = 0; i < this.armorItems.size(); ++i) {
              itemstack = (ItemStack) this.armorItems.get(i);
              if (!itemstack.isEmpty()) {
@@ -155,7 +156,7 @@
  
      }
  
-@@ -662,8 +715,16 @@
+@@ -662,9 +716,17 @@
          return this.isSmall();
      }
  
@@ -168,7 +169,9 @@
 +
      @Override
      public void kill() {
+-        this.remove(Entity.RemovalReason.KILLED);
 +        org.bukkit.craftbukkit.event.CraftEventFactory.callEntityDeathEvent(this, drops); // CraftBukkit - call event
-         this.remove(Entity.RemovalReason.KILLED);
++        this.remove(Entity.RemovalReason.KILLED, EntityRemoveEvent.Cause.DEATH); // CraftBukkit - add Bukkit remove cause
          this.gameEvent(GameEvent.ENTITY_DIE);
      }
+ 

paper-server/nms-patches/net/minecraft/world/entity/decoration/EntityHanging.patch

@@ -1,12 +1,13 @@
 --- a/net/minecraft/world/entity/decoration/EntityHanging.java
 +++ b/net/minecraft/world/entity/decoration/EntityHanging.java
-@@ -26,6 +26,13 @@
+@@ -26,6 +26,14 @@
  import org.apache.commons.lang3.Validate;
  import org.slf4j.Logger;
  
 +// CraftBukkit start
 +import net.minecraft.tags.DamageTypeTags;
 +import org.bukkit.entity.Hanging;
++import org.bukkit.event.entity.EntityRemoveEvent;
 +import org.bukkit.event.hanging.HangingBreakByEntityEvent;
 +import org.bukkit.event.hanging.HangingBreakEvent;
 +// CraftBukkit end
@@ -14,7 +15,7 @@
  public abstract class EntityHanging extends Entity {
  
      private static final Logger LOGGER = LogUtils.getLogger();
-@@ -60,26 +67,37 @@
+@@ -60,26 +68,37 @@
  
      protected void recalculateBoundingBox() {
          if (this.direction != null) {
@@ -65,7 +66,7 @@
                  d8 = 1.0D;
              } else {
                  d6 = 1.0D;
-@@ -88,11 +106,12 @@
+@@ -88,11 +107,12 @@
              d6 /= 32.0D;
              d7 /= 32.0D;
              d8 /= 32.0D;
@@ -80,10 +81,11 @@
          return i % 32 == 0 ? 0.5D : 0.0D;
      }
  
-@@ -103,6 +122,24 @@
+@@ -103,7 +123,25 @@
              if (this.checkInterval++ == 100) {
                  this.checkInterval = 0;
                  if (!this.isRemoved() && !this.survives()) {
+-                    this.discard();
 +                    // CraftBukkit start - fire break events
 +                    IBlockData material = this.level().getBlockState(this.blockPosition());
 +                    HangingBreakEvent.RemoveCause cause;
@@ -102,10 +104,11 @@
 +                        return;
 +                    }
 +                    // CraftBukkit end
-                     this.discard();
++                    this.discard(EntityRemoveEvent.Cause.DROP); // CraftBukkit - add Bukkit remove cause
                      this.dropItem((Entity) null);
                  }
-@@ -166,6 +203,22 @@
+             }
+@@ -166,6 +204,22 @@
              return false;
          } else {
              if (!this.isRemoved() && !this.level().isClientSide) {
@@ -128,7 +131,7 @@
                  this.kill();
                  this.markHurt();
                  this.dropItem(damagesource.getEntity());
-@@ -178,6 +231,18 @@
+@@ -178,6 +232,18 @@
      @Override
      public void move(EnumMoveType enummovetype, Vec3D vec3d) {
          if (!this.level().isClientSide && !this.isRemoved() && vec3d.lengthSqr() > 0.0D) {
@@ -147,7 +150,7 @@
              this.kill();
              this.dropItem((Entity) null);
          }
-@@ -186,13 +251,22 @@
+@@ -186,13 +252,22 @@
  
      @Override
      public void push(double d0, double d1, double d2) {

paper-server/nms-patches/net/minecraft/world/entity/decoration/EntityLeash.patch

@@ -1,6 +1,6 @@
 --- a/net/minecraft/world/entity/decoration/EntityLeash.java
 +++ b/net/minecraft/world/entity/decoration/EntityLeash.java
-@@ -26,6 +26,12 @@
+@@ -26,6 +26,13 @@
  import net.minecraft.world.phys.AxisAlignedBB;
  import net.minecraft.world.phys.Vec3D;
  
@@ -8,12 +8,13 @@
 +import net.minecraft.network.protocol.game.PacketPlayOutAttachEntity;
 +import net.minecraft.server.level.EntityPlayer;
 +import org.bukkit.craftbukkit.event.CraftEventFactory;
++import org.bukkit.event.entity.EntityRemoveEvent;
 +// CraftBukkit end
 +
  public class EntityLeash extends EntityHanging {
  
      public static final double OFFSET_Y = 0.375D;
-@@ -96,6 +102,12 @@
+@@ -96,6 +103,12 @@
                  EntityInsentient entityinsentient = (EntityInsentient) iterator.next();
  
                  if (entityinsentient.getLeashHolder() == entityhuman) {
@@ -26,7 +27,7 @@
                      entityinsentient.setLeashedTo(this, true);
                      flag = true;
                  }
-@@ -104,18 +116,32 @@
+@@ -104,18 +117,32 @@
              boolean flag1 = false;
  
              if (!flag) {
@@ -56,7 +57,7 @@
                      }
 +                    // CraftBukkit start
 +                    if (die) {
-+                        this.discard();
++                        this.discard(EntityRemoveEvent.Cause.DROP); // CraftBukkit - add Bukkit remove cause
 +                    }
 +                    // CraftBukkit end
                  }

paper-server/nms-patches/net/minecraft/world/entity/item/EntityFallingBlock.patch

@@ -1,17 +1,18 @@
 --- a/net/minecraft/world/entity/item/EntityFallingBlock.java
 +++ b/net/minecraft/world/entity/item/EntityFallingBlock.java
-@@ -49,6 +49,10 @@
+@@ -49,6 +49,11 @@
  import net.minecraft.world.phys.Vec3D;
  import org.slf4j.Logger;
  
 +// CraftBukkit start;
 +import org.bukkit.craftbukkit.event.CraftEventFactory;
++import org.bukkit.event.entity.EntityRemoveEvent;
 +// CraftBukkit end
 +
  public class EntityFallingBlock extends Entity {
  
      private static final Logger LOGGER = LogUtils.getLogger();
-@@ -83,10 +87,17 @@
+@@ -83,10 +88,17 @@
      }
  
      public static EntityFallingBlock fall(World world, BlockPosition blockposition, IBlockData iblockdata) {
@@ -30,16 +31,61 @@
          return entityfallingblock;
      }
  
-@@ -169,6 +180,12 @@
+@@ -121,7 +133,7 @@
+     @Override
+     public void tick() {
+         if (this.blockState.isAir()) {
+-            this.discard();
++            this.discard(EntityRemoveEvent.Cause.DESPAWN); // CraftBukkit - add Bukkit remove cause
+         } else {
+             Block block = this.blockState.getBlock();
+ 
+@@ -152,7 +164,7 @@
+                             this.spawnAtLocation((IMaterial) block);
+                         }
+ 
+-                        this.discard();
++                        this.discard(EntityRemoveEvent.Cause.DROP); // CraftBukkit - add Bukkit remove cause
+                     }
+                 } else {
+                     IBlockData iblockdata = this.level().getBlockState(blockposition);
+@@ -169,9 +181,15 @@
                                      this.blockState = (IBlockData) this.blockState.setValue(BlockProperties.WATERLOGGED, true);
                                  }
  
 +                                // CraftBukkit start
 +                                if (!CraftEventFactory.callEntityChangeBlockEvent(this, blockposition, this.blockState)) {
-+                                    this.discard(); // SPIGOT-6586 called before the event in previous versions
++                                    this.discard(EntityRemoveEvent.Cause.DESPAWN); // SPIGOT-6586 called before the event in previous versions
 +                                    return;
 +                                }
 +                                // CraftBukkit end
                                  if (this.level().setBlock(blockposition, this.blockState, 3)) {
                                      ((WorldServer) this.level()).getChunkSource().chunkMap.broadcast(this, new PacketPlayOutBlockChange(blockposition, this.level().getBlockState(blockposition)));
-                                     this.discard();
+-                                    this.discard();
++                                    this.discard(EntityRemoveEvent.Cause.DESPAWN);
+                                     if (block instanceof Fallable) {
+                                         ((Fallable) block).onLand(this.level(), blockposition, this.blockState, iblockdata, this);
+                                     }
+@@ -199,19 +217,19 @@
+                                         }
+                                     }
+                                 } else if (this.dropItem && this.level().getGameRules().getBoolean(GameRules.RULE_DOENTITYDROPS)) {
+-                                    this.discard();
++                                    this.discard(EntityRemoveEvent.Cause.DROP); // CraftBukkit - add Bukkit remove cause
+                                     this.callOnBrokenAfterFall(block, blockposition);
+                                     this.spawnAtLocation((IMaterial) block);
+                                 }
+                             } else {
+-                                this.discard();
++                                this.discard(EntityRemoveEvent.Cause.DROP); // CraftBukkit - add Bukkit remove cause
+                                 if (this.dropItem && this.level().getGameRules().getBoolean(GameRules.RULE_DOENTITYDROPS)) {
+                                     this.callOnBrokenAfterFall(block, blockposition);
+                                     this.spawnAtLocation((IMaterial) block);
+                                 }
+                             }
+                         } else {
+-                            this.discard();
++                            this.discard(EntityRemoveEvent.Cause.DESPAWN); // CraftBukkit - add Bukkit remove cause
+                             this.callOnBrokenAfterFall(block, blockposition);
+                         }
+                     }

paper-server/nms-patches/net/minecraft/world/entity/item/EntityItem.patch

@@ -1,6 +1,6 @@
 --- a/net/minecraft/world/entity/item/EntityItem.java
 +++ b/net/minecraft/world/entity/item/EntityItem.java
-@@ -31,6 +31,14 @@
+@@ -31,6 +31,15 @@
  import net.minecraft.world.level.gameevent.GameEvent;
  import net.minecraft.world.phys.Vec3D;
  
@@ -9,13 +9,14 @@
 +import org.bukkit.craftbukkit.event.CraftEventFactory;
 +import org.bukkit.entity.Player;
 +import org.bukkit.event.entity.EntityPickupItemEvent;
++import org.bukkit.event.entity.EntityRemoveEvent;
 +import org.bukkit.event.player.PlayerPickupItemEvent;
 +// CraftBukkit end
 +
  public class EntityItem extends Entity implements TraceableEntity {
  
      private static final DataWatcherObject<ItemStack> DATA_ITEM = DataWatcher.defineId(EntityItem.class, DataWatcherRegistry.ITEM_STACK);
-@@ -47,6 +55,7 @@
+@@ -47,6 +56,7 @@
      @Nullable
      public UUID target;
      public final float bobOffs;
@@ -23,8 +24,12 @@
  
      public EntityItem(EntityTypes<? extends EntityItem> entitytypes, World world) {
          super(entitytypes, world);
-@@ -128,9 +137,12 @@
-             this.discard();
+@@ -125,12 +135,15 @@
+     @Override
+     public void tick() {
+         if (this.getItem().isEmpty()) {
+-            this.discard();
++            this.discard(EntityRemoveEvent.Cause.DESPAWN); // CraftBukkit - add Bukkit remove cause
          } else {
              super.tick();
 -            if (this.pickupDelay > 0 && this.pickupDelay != 32767) {
@@ -39,7 +44,7 @@
  
              this.xo = this.getX();
              this.yo = this.getY();
-@@ -180,9 +192,11 @@
+@@ -180,9 +193,11 @@
                  this.mergeWithNeighbours();
              }
  
@@ -51,20 +56,22 @@
  
              this.hasImpulse |= this.updateInWaterStateAndDoFluidPushing();
              if (!this.level().isClientSide) {
-@@ -194,6 +208,12 @@
+@@ -194,7 +209,13 @@
              }
  
              if (!this.level().isClientSide && this.age >= 6000) {
+-                this.discard();
 +                // CraftBukkit start - fire ItemDespawnEvent
 +                if (CraftEventFactory.callItemDespawnEvent(this).isCancelled()) {
 +                    this.age = 0;
 +                    return;
 +                }
 +                // CraftBukkit end
-                 this.discard();
++                this.discard(EntityRemoveEvent.Cause.DESPAWN); // CraftBukkit - add Bukkit remove cause
              }
  
-@@ -277,6 +297,11 @@
+         }
+@@ -277,11 +298,16 @@
      }
  
      private static void merge(EntityItem entityitem, ItemStack itemstack, EntityItem entityitem1, ItemStack itemstack1) {
@@ -76,7 +83,13 @@
          merge(entityitem, itemstack, itemstack1);
          entityitem.pickupDelay = Math.max(entityitem.pickupDelay, entityitem1.pickupDelay);
          entityitem.age = Math.min(entityitem.age, entityitem1.age);
-@@ -302,6 +327,11 @@
+         if (itemstack1.isEmpty()) {
+-            entityitem1.discard();
++            entityitem1.discard(EntityRemoveEvent.Cause.MERGE); // CraftBukkit - add Bukkit remove cause);
+         }
+ 
+     }
+@@ -302,12 +328,17 @@
          } else if (this.level().isClientSide) {
              return true;
          } else {
@@ -88,7 +101,23 @@
              this.markHurt();
              this.health = (int) ((float) this.health - f);
              this.gameEvent(GameEvent.ENTITY_DAMAGE, damagesource.getEntity());
-@@ -366,6 +396,46 @@
+             if (this.health <= 0) {
+                 this.getItem().onDestroyed(this);
+-                this.discard();
++                this.discard(EntityRemoveEvent.Cause.DEATH); // CraftBukkit - add Bukkit remove cause
+             }
+ 
+             return true;
+@@ -354,7 +385,7 @@
+ 
+         this.setItem(ItemStack.of(nbttagcompound1));
+         if (this.getItem().isEmpty()) {
+-            this.discard();
++            this.discard(null); // CraftBukkit - add Bukkit remove cause
+         }
+ 
+     }
+@@ -366,10 +397,50 @@
              Item item = itemstack.getItem();
              int i = itemstack.getCount();
  
@@ -135,3 +164,8 @@
              if (this.pickupDelay == 0 && (this.target == null || this.target.equals(entityhuman.getUUID())) && entityhuman.getInventory().add(itemstack)) {
                  entityhuman.take(this, i);
                  if (itemstack.isEmpty()) {
+-                    this.discard();
++                    this.discard(EntityRemoveEvent.Cause.PICKUP); // CraftBukkit - add Bukkit remove cause
+                     itemstack.setCount(i);
+                 }
+ 

paper-server/nms-patches/net/minecraft/world/entity/item/EntityTNTPrimed.patch

@@ -1,18 +1,19 @@
 --- a/net/minecraft/world/entity/item/EntityTNTPrimed.java
 +++ b/net/minecraft/world/entity/item/EntityTNTPrimed.java
-@@ -19,6 +19,11 @@
+@@ -19,6 +19,12 @@
  import net.minecraft.world.level.block.Blocks;
  import net.minecraft.world.level.block.state.IBlockData;
  
 +// CraftBukkit start;
 +import org.bukkit.craftbukkit.event.CraftEventFactory;
++import org.bukkit.event.entity.EntityRemoveEvent;
 +import org.bukkit.event.entity.ExplosionPrimeEvent;
 +// CraftBukkit end
 +
  public class EntityTNTPrimed extends Entity implements TraceableEntity {
  
      private static final DataWatcherObject<Integer> DATA_FUSE_ID = DataWatcher.defineId(EntityTNTPrimed.class, DataWatcherRegistry.INT);
-@@ -28,6 +33,8 @@
+@@ -28,6 +34,8 @@
      public static final String TAG_FUSE = "fuse";
      @Nullable
      public EntityLiving owner;
@@ -21,7 +22,7 @@
  
      public EntityTNTPrimed(EntityTypes<? extends EntityTNTPrimed> entitytypes, World world) {
          super(entitytypes, world);
-@@ -79,10 +86,13 @@
+@@ -79,10 +87,13 @@
  
          this.setFuse(i);
          if (i <= 0) {
@@ -31,12 +32,12 @@
              if (!this.level().isClientSide) {
                  this.explode();
              }
-+            this.discard();
++            this.discard(EntityRemoveEvent.Cause.EXPLODE); // CraftBukkit - add Bukkit remove cause
 +            // CraftBukkit end
          } else {
              this.updateInWaterStateAndDoFluidPushing();
              if (this.level().isClientSide) {
-@@ -93,9 +103,14 @@
+@@ -93,9 +104,14 @@
      }
  
      private void explode() {

paper-server/nms-patches/net/minecraft/world/entity/monster/EntityCreeper.patch

@@ -1,19 +1,20 @@
 --- a/net/minecraft/world/entity/monster/EntityCreeper.java
 +++ b/net/minecraft/world/entity/monster/EntityCreeper.java
-@@ -43,6 +43,12 @@
+@@ -43,6 +43,13 @@
  import net.minecraft.world.level.World;
  import net.minecraft.world.level.gameevent.GameEvent;
  
 +// CraftBukkit start;
 +import org.bukkit.event.entity.CreatureSpawnEvent;
 +import org.bukkit.craftbukkit.event.CraftEventFactory;
++import org.bukkit.event.entity.EntityRemoveEvent;
 +import org.bukkit.event.entity.ExplosionPrimeEvent;
 +// CraftBukkit end
 +
  public class EntityCreeper extends EntityMonster implements PowerableMob {
  
      private static final DataWatcherObject<Integer> DATA_SWELL_DIR = DataWatcher.defineId(EntityCreeper.class, DataWatcherRegistry.INT);
-@@ -218,9 +224,20 @@
+@@ -218,9 +225,20 @@
      @Override
      public void thunderHit(WorldServer worldserver, EntityLightning entitylightning) {
          super.thunderHit(worldserver, entitylightning);
@@ -34,7 +35,7 @@
      @Override
      protected EnumInteractionResult mobInteract(EntityHuman entityhuman, EnumHand enumhand) {
          ItemStack itemstack = entityhuman.getItemInHand(enumhand);
-@@ -231,7 +248,7 @@
+@@ -231,7 +249,7 @@
              this.level().playSound(entityhuman, this.getX(), this.getY(), this.getZ(), soundeffect, this.getSoundSource(), 1.0F, this.random.nextFloat() * 0.4F + 0.8F);
              if (!this.level().isClientSide) {
                  this.ignite();
@@ -43,7 +44,7 @@
                      itemstack.shrink(1);
                  } else {
                      itemstack.hurtAndBreak(1, entityhuman, (entityhuman1) -> {
-@@ -250,10 +267,19 @@
+@@ -250,10 +268,19 @@
          if (!this.level().isClientSide) {
              float f = this.isPowered() ? 2.0F : 1.0F;
  
@@ -53,8 +54,9 @@
 +            // CraftBukkit end
              this.dead = true;
 -            this.level().explode(this, this.getX(), this.getY(), this.getZ(), (float) this.explosionRadius * f, World.a.MOB);
+-            this.discard();
 +            this.level().explode(this, this.getX(), this.getY(), this.getZ(), event.getRadius(), event.getFire(), World.a.MOB); // CraftBukkit
-             this.discard();
++            this.discard(EntityRemoveEvent.Cause.EXPLODE); // CraftBukkit - add Bukkit remove cause
              this.spawnLingeringCloud();
 +            // CraftBukkit start
 +            } else {
@@ -64,7 +66,7 @@
          }
  
      }
-@@ -264,6 +290,7 @@
+@@ -264,6 +291,7 @@
          if (!collection.isEmpty()) {
              EntityAreaEffectCloud entityareaeffectcloud = new EntityAreaEffectCloud(this.level(), this.getX(), this.getY(), this.getZ());
  
@@ -72,7 +74,7 @@
              entityareaeffectcloud.setRadius(2.5F);
              entityareaeffectcloud.setRadiusOnUse(-0.5F);
              entityareaeffectcloud.setWaitTime(10);
-@@ -277,7 +304,7 @@
+@@ -277,7 +305,7 @@
                  entityareaeffectcloud.addEffect(new MobEffect(mobeffect));
              }
  

paper-server/nms-patches/net/minecraft/world/entity/monster/EntityEndermite.patch

@@ -0,0 +1,22 @@
+--- a/net/minecraft/world/entity/monster/EntityEndermite.java
++++ b/net/minecraft/world/entity/monster/EntityEndermite.java
+@@ -29,6 +29,10 @@
+ import net.minecraft.world.level.block.state.IBlockData;
+ import org.joml.Vector3f;
+ 
++// CraftBukkit start
++import org.bukkit.event.entity.EntityRemoveEvent;
++// CraftBukkit end
++
+ public class EntityEndermite extends EntityMonster {
+ 
+     private static final int MAX_LIFE = 2400;
+@@ -122,7 +126,7 @@
+             }
+ 
+             if (this.life >= 2400) {
+-                this.discard();
++                this.discard(EntityRemoveEvent.Cause.DESPAWN); // CraftBukkit - add Bukkit remove cause
+             }
+         }
+ 

paper-server/nms-patches/net/minecraft/world/entity/monster/EntityPillager.patch

@@ -0,0 +1,22 @@
+--- a/net/minecraft/world/entity/monster/EntityPillager.java
++++ b/net/minecraft/world/entity/monster/EntityPillager.java
+@@ -51,6 +51,10 @@
+ import net.minecraft.world.level.World;
+ import net.minecraft.world.level.WorldAccess;
+ 
++// CraftBukkit start
++import org.bukkit.event.entity.EntityRemoveEvent;
++// CraftBukkit end
++
+ public class EntityPillager extends EntityIllagerAbstract implements ICrossbow, InventoryCarrier {
+ 
+     private static final DataWatcherObject<Boolean> IS_CHARGING_CROSSBOW = DataWatcher.defineId(EntityPillager.class, DataWatcherRegistry.BOOLEAN);
+@@ -213,7 +217,7 @@
+             ItemStack itemstack1 = this.inventory.addItem(itemstack);
+ 
+             if (itemstack1.isEmpty()) {
+-                entityitem.discard();
++                entityitem.discard(EntityRemoveEvent.Cause.PICKUP); // CraftBukkit - add Bukkit remove cause
+             } else {
+                 itemstack.setCount(itemstack1.getCount());
+             }

paper-server/nms-patches/net/minecraft/world/entity/monster/EntitySilverfish.patch

@@ -1,17 +1,18 @@
 --- a/net/minecraft/world/entity/monster/EntitySilverfish.java
 +++ b/net/minecraft/world/entity/monster/EntitySilverfish.java
-@@ -34,6 +34,10 @@
+@@ -34,6 +34,11 @@
  import net.minecraft.world.level.block.state.IBlockData;
  import org.joml.Vector3f;
  
 +// CraftBukkit start
 +import org.bukkit.craftbukkit.event.CraftEventFactory;
++import org.bukkit.event.entity.EntityRemoveEvent;
 +// CraftBukkit end
 +
  public class EntitySilverfish extends EntityMonster {
  
      @Nullable
-@@ -176,6 +180,11 @@
+@@ -176,6 +181,11 @@
                              Block block = iblockdata.getBlock();
  
                              if (block instanceof BlockMonsterEggs) {
@@ -23,7 +24,7 @@
                                  if (world.getGameRules().getBoolean(GameRules.RULE_MOBGRIEFING)) {
                                      world.destroyBlock(blockposition1, true, this.silverfish);
                                  } else {
-@@ -245,6 +254,11 @@
+@@ -245,9 +255,14 @@
                  IBlockData iblockdata = world.getBlockState(blockposition);
  
                  if (BlockMonsterEggs.isCompatibleHostBlock(iblockdata)) {
@@ -34,4 +35,8 @@
 +                    // CraftBukkit end
                      world.setBlock(blockposition, BlockMonsterEggs.infestedStateByHost(iblockdata), 3);
                      this.mob.spawnAnim();
-                     this.mob.discard();
+-                    this.mob.discard();
++                    this.mob.discard(EntityRemoveEvent.Cause.ENTER_BLOCK); // CraftBukkit - add Bukkit remove cause
+                 }
+ 
+             }

paper-server/nms-patches/net/minecraft/world/entity/monster/EntitySlime.patch

@@ -1,6 +1,6 @@
 --- a/net/minecraft/world/entity/monster/EntitySlime.java
 +++ b/net/minecraft/world/entity/monster/EntitySlime.java
-@@ -44,6 +44,14 @@
+@@ -44,6 +44,15 @@
  import net.minecraft.world.phys.Vec3D;
  import org.joml.Vector3f;
  
@@ -8,6 +8,7 @@
 +import java.util.ArrayList;
 +import java.util.List;
 +import org.bukkit.craftbukkit.event.CraftEventFactory;
++import org.bukkit.event.entity.EntityRemoveEvent;
 +import org.bukkit.event.entity.EntityTransformEvent;
 +import org.bukkit.event.entity.SlimeSplitEvent;
 +// CraftBukkit end
@@ -15,7 +16,7 @@
  public class EntitySlime extends EntityInsentient implements IMonster {
  
      private static final DataWatcherObject<Integer> ID_SIZE = DataWatcher.defineId(EntitySlime.class, DataWatcherRegistry.INT);
-@@ -192,7 +200,7 @@
+@@ -192,11 +201,18 @@
  
      @Override
      public EntityTypes<? extends EntitySlime> getType() {
@@ -24,7 +25,18 @@
      }
  
      @Override
-@@ -206,6 +214,19 @@
+     public void remove(Entity.RemovalReason entity_removalreason) {
++        // CraftBukkit start - add Bukkit remove cause
++        this.remove(entity_removalreason, null);
++    }
++
++    @Override
++    public void remove(Entity.RemovalReason entity_removalreason, EntityRemoveEvent.Cause cause) {
++        // CraftBukkit end
+         int i = this.getSize();
+ 
+         if (!this.level().isClientSide && i > 1 && this.isDeadOrDying()) {
+@@ -206,6 +222,19 @@
              int j = i / 2;
              int k = 2 + this.random.nextInt(3);
  
@@ -35,7 +47,7 @@
 +            if (!event.isCancelled() && event.getCount() > 0) {
 +                k = event.getCount();
 +            } else {
-+                super.remove(entity_removalreason);
++                super.remove(entity_removalreason, cause); // CraftBukkit - add Bukkit remove cause
 +                return;
 +            }
 +            List<EntityLiving> slimes = new ArrayList<>(j);
@@ -44,7 +56,7 @@
              for (int l = 0; l < k; ++l) {
                  float f1 = ((float) (l % 2) - 0.5F) * f;
                  float f2 = ((float) (l / 2) - 0.5F) * f;
-@@ -221,9 +242,18 @@
+@@ -221,12 +250,21 @@
                      entityslime.setInvulnerable(this.isInvulnerable());
                      entityslime.setSize(j, true);
                      entityslime.moveTo(this.getX() + (double) f1, this.getY() + 0.5D, this.getZ() + (double) f2, this.random.nextFloat() * 360.0F, 0.0F);
@@ -54,7 +66,7 @@
              }
 +            // CraftBukkit start
 +            if (CraftEventFactory.callEntityTransformEvent(this, slimes, EntityTransformEvent.TransformReason.SPLIT).isCancelled()) {
-+                super.remove(entity_removalreason);
++                super.remove(entity_removalreason, cause); // CraftBukkit - add Bukkit remove cause
 +                return;
 +            }
 +            for (EntityLiving living : slimes) {
@@ -63,4 +75,8 @@
 +            // CraftBukkit end
          }
  
-         super.remove(entity_removalreason);
+-        super.remove(entity_removalreason);
++        super.remove(entity_removalreason, cause); // CraftBukkit - add Bukkit remove cause
+     }
+ 
+     @Override

paper-server/nms-patches/net/minecraft/world/entity/monster/piglin/PiglinAI.patch

@@ -1,6 +1,6 @@
 --- a/net/minecraft/world/entity/monster/piglin/PiglinAI.java
 +++ b/net/minecraft/world/entity/monster/piglin/PiglinAI.java
-@@ -74,6 +74,13 @@
+@@ -74,6 +74,14 @@
  import net.minecraft.world.level.storage.loot.parameters.LootContextParameters;
  import net.minecraft.world.phys.Vec3D;
  
@@ -8,13 +8,14 @@
 +import java.util.stream.Collectors;
 +import org.bukkit.craftbukkit.event.CraftEventFactory;
 +import org.bukkit.craftbukkit.inventory.CraftItemStack;
++import org.bukkit.event.entity.EntityRemoveEvent;
 +import org.bukkit.event.entity.PiglinBarterEvent;
 +// CraftBukkit end
 +
  public class PiglinAI {
  
      public static final int REPELLENT_DETECTION_RANGE_HORIZONTAL = 8;
-@@ -164,7 +171,8 @@
+@@ -164,7 +172,8 @@
      }
  
      private static void initRideHoglinActivity(BehaviorController<EntityPiglin> behaviorcontroller) {
@@ -24,7 +25,7 @@
              return true;
          }), 1)).build())), BehaviorStopRiding.create(8, PiglinAI::wantsToStopRiding)), MemoryModuleType.RIDE_TARGET);
      }
-@@ -174,7 +182,7 @@
+@@ -174,7 +183,7 @@
      }
  
      private static BehaviorGateSingle<EntityLiving> createIdleLookBehaviors() {
@@ -33,7 +34,7 @@
      }
  
      private static BehaviorGateSingle<EntityPiglin> createIdleMovementBehaviors() {
-@@ -195,13 +203,13 @@
+@@ -195,13 +204,13 @@
  
      protected static void updateActivity(EntityPiglin entitypiglin) {
          BehaviorController<EntityPiglin> behaviorcontroller = entitypiglin.getBrain();
@@ -50,7 +51,7 @@
  
              Objects.requireNonNull(entitypiglin);
              optional.ifPresent(entitypiglin::playSoundEvent);
-@@ -233,23 +241,27 @@
+@@ -233,23 +242,27 @@
          stopWalking(entitypiglin);
          ItemStack itemstack;
  
@@ -59,8 +60,9 @@
 +        if (entityitem.getItem().is(Items.GOLD_NUGGET) && !org.bukkit.craftbukkit.event.CraftEventFactory.callEntityPickupItemEvent(entitypiglin, entityitem, 0, false).isCancelled()) {
              entitypiglin.take(entityitem, entityitem.getItem().getCount());
              itemstack = entityitem.getItem();
-             entityitem.discard();
+-            entityitem.discard();
 -        } else {
++            entityitem.discard(EntityRemoveEvent.Cause.PICKUP); // CraftBukkit - add Bukkit remove cause
 +        } else if (!org.bukkit.craftbukkit.event.CraftEventFactory.callEntityPickupItemEvent(entitypiglin, entityitem, entityitem.getItem().getCount() - 1, false).isCancelled()) {
              entitypiglin.take(entityitem, 1);
              itemstack = removeOneItemFromItemEntity(entityitem);
@@ -82,7 +84,16 @@
  
              if (!flag) {
                  putInInventory(entitypiglin, itemstack);
-@@ -285,9 +297,14 @@
+@@ -270,7 +283,7 @@
+         ItemStack itemstack1 = itemstack.split(1);
+ 
+         if (itemstack.isEmpty()) {
+-            entityitem.discard();
++            entityitem.discard(EntityRemoveEvent.Cause.PICKUP); // CraftBukkit - add Bukkit remove cause
+         } else {
+             entityitem.setItem(itemstack);
+         }
+@@ -285,9 +298,14 @@
          boolean flag1;
  
          if (entitypiglin.isAdult()) {
@@ -99,7 +110,7 @@
              } else if (!flag1) {
                  boolean flag2 = !entitypiglin.equipItemIfPossible(itemstack).isEmpty();
  
-@@ -300,7 +317,7 @@
+@@ -300,7 +318,7 @@
              if (!flag1) {
                  ItemStack itemstack1 = entitypiglin.getMainHandItem();
  
@@ -108,7 +119,7 @@
                      putInInventory(entitypiglin, itemstack1);
                  } else {
                      throwItems(entitypiglin, Collections.singletonList(itemstack1));
-@@ -377,7 +394,7 @@
+@@ -377,7 +395,7 @@
              return false;
          } else if (isAdmiringDisabled(entitypiglin) && entitypiglin.getBrain().hasMemoryValue(MemoryModuleType.ATTACK_TARGET)) {
              return false;
@@ -117,7 +128,7 @@
              return isNotHoldingLovedItemInOffHand(entitypiglin);
          } else {
              boolean flag = entitypiglin.canAddToInventory(itemstack);
-@@ -386,6 +403,12 @@
+@@ -386,6 +404,12 @@
          }
      }
  
@@ -130,7 +141,7 @@
      protected static boolean isLovedItem(ItemStack itemstack) {
          return itemstack.is(TagsItem.PIGLIN_LOVED);
      }
-@@ -481,7 +504,7 @@
+@@ -481,7 +505,7 @@
      }
  
      protected static boolean canAdmire(EntityPiglin entitypiglin, ItemStack itemstack) {
@@ -139,7 +150,7 @@
      }
  
      protected static void wasHurtBy(EntityPiglin entitypiglin, EntityLiving entityliving) {
-@@ -738,6 +761,12 @@
+@@ -738,6 +762,12 @@
          return entitypiglin.getBrain().hasMemoryValue(MemoryModuleType.ADMIRING_ITEM);
      }
  
@@ -152,7 +163,7 @@
      private static boolean isBarterCurrency(ItemStack itemstack) {
          return itemstack.is(PiglinAI.BARTERING_ITEM);
      }
-@@ -775,7 +804,7 @@
+@@ -775,7 +805,7 @@
      }
  
      private static boolean isNotHoldingLovedItemInOffHand(EntityPiglin entitypiglin) {

paper-server/nms-patches/net/minecraft/world/entity/npc/EntityVillager.patch

@@ -1,6 +1,6 @@
 --- a/net/minecraft/world/entity/npc/EntityVillager.java
 +++ b/net/minecraft/world/entity/npc/EntityVillager.java
-@@ -92,6 +92,14 @@
+@@ -92,6 +92,15 @@
  import net.minecraft.world.phys.AxisAlignedBB;
  import org.slf4j.Logger;
  
@@ -8,6 +8,7 @@
 +import org.bukkit.Bukkit;
 +import org.bukkit.craftbukkit.event.CraftEventFactory;
 +import org.bukkit.entity.Villager;
++import org.bukkit.event.entity.EntityRemoveEvent;
 +import org.bukkit.event.entity.EntityTransformEvent;
 +import org.bukkit.event.entity.VillagerReplenishTradeEvent;
 +// CraftBukkit end
@@ -15,7 +16,7 @@
  public class EntityVillager extends EntityVillagerAbstract implements ReputationHandler, VillagerDataHolder {
  
      private static final Logger LOGGER = LogUtils.getLogger();
-@@ -150,7 +158,7 @@
+@@ -150,7 +159,7 @@
  
      @Override
      public BehaviorController<EntityVillager> getBrain() {
@@ -24,7 +25,7 @@
      }
  
      @Override
-@@ -233,7 +241,7 @@
+@@ -233,7 +242,7 @@
                      this.increaseProfessionLevelOnUpdate = false;
                  }
  
@@ -33,7 +34,7 @@
              }
          }
  
-@@ -361,7 +369,13 @@
+@@ -361,7 +370,13 @@
          while (iterator.hasNext()) {
              MerchantRecipe merchantrecipe = (MerchantRecipe) iterator.next();
  
@@ -48,7 +49,7 @@
          }
  
          this.resendOffersToTradingPlayer();
-@@ -430,7 +444,13 @@
+@@ -430,7 +445,13 @@
              while (iterator.hasNext()) {
                  MerchantRecipe merchantrecipe = (MerchantRecipe) iterator.next();
  
@@ -63,7 +64,7 @@
              }
          }
  
-@@ -490,7 +510,7 @@
+@@ -490,7 +511,7 @@
      @Override
      public void addAdditionalSaveData(NBTTagCompound nbttagcompound) {
          super.addAdditionalSaveData(nbttagcompound);
@@ -72,7 +73,7 @@
          Logger logger = EntityVillager.LOGGER;
  
          Objects.requireNonNull(logger);
-@@ -834,7 +854,12 @@
+@@ -834,9 +855,14 @@
                  }
  
                  entitywitch.setPersistenceRequired();
@@ -84,9 +85,12 @@
 +                worldserver.addFreshEntityWithPassengers(entitywitch, org.bukkit.event.entity.CreatureSpawnEvent.SpawnReason.LIGHTNING);
 +                // CraftBukkit end
                  this.releaseAllPois();
-                 this.discard();
+-                this.discard();
++                this.discard(EntityRemoveEvent.Cause.TRANSFORMATION); // CraftBukkit - add Bukkit remove cause
              } else {
-@@ -933,7 +958,7 @@
+                 super.thunderHit(worldserver, entitylightning);
+             }
+@@ -933,7 +959,7 @@
              }).limit(5L).collect(Collectors.toList());
  
              if (list1.size() >= j) {
@@ -95,7 +99,7 @@
                      list.forEach(SensorGolemLastSeen::golemDetected);
                  }
              }
-@@ -990,7 +1015,7 @@
+@@ -990,7 +1016,7 @@
      @Override
      public void startSleeping(BlockPosition blockposition) {
          super.startSleeping(blockposition);
@@ -104,7 +108,7 @@
          this.brain.eraseMemory(MemoryModuleType.WALK_TARGET);
          this.brain.eraseMemory(MemoryModuleType.CANT_REACH_WALK_TARGET_SINCE);
      }
-@@ -998,7 +1023,7 @@
+@@ -998,7 +1024,7 @@
      @Override
      public void stopSleeping() {
          super.stopSleeping();

paper-server/nms-patches/net/minecraft/world/entity/npc/EntityVillagerTrader.patch

@@ -1,6 +1,6 @@
 --- a/net/minecraft/world/entity/npc/EntityVillagerTrader.java
 +++ b/net/minecraft/world/entity/npc/EntityVillagerTrader.java
-@@ -47,6 +47,13 @@
+@@ -47,6 +47,14 @@
  import net.minecraft.world.phys.Vec3D;
  import org.apache.commons.lang3.tuple.Pair;
  
@@ -8,13 +8,14 @@
 +import org.bukkit.Bukkit;
 +import org.bukkit.craftbukkit.inventory.CraftMerchantRecipe;
 +import org.bukkit.entity.AbstractVillager;
++import org.bukkit.event.entity.EntityRemoveEvent;
 +import org.bukkit.event.entity.VillagerAcquireTradeEvent;
 +// CraftBukkit end
 +
  public class EntityVillagerTrader extends EntityVillagerAbstract {
  
      private static final int NUMBER_OF_TRADE_OFFERS = 5;
-@@ -56,6 +63,7 @@
+@@ -56,6 +64,7 @@
  
      public EntityVillagerTrader(EntityTypes<? extends EntityVillagerTrader> entitytypes, World world) {
          super(entitytypes, world);
@@ -22,7 +23,7 @@
      }
  
      @Override
-@@ -136,7 +144,16 @@
+@@ -136,7 +145,16 @@
                  MerchantRecipe merchantrecipe = villagertrades_imerchantrecipeoption.getOffer(this, this.random);
  
                  if (merchantrecipe != null) {
@@ -40,3 +41,12 @@
                  }
  
              }
+@@ -244,7 +262,7 @@
+ 
+     private void maybeDespawn() {
+         if (this.despawnDelay > 0 && !this.isTrading() && --this.despawnDelay == 0) {
+-            this.discard();
++            this.discard(EntityRemoveEvent.Cause.DESPAWN); // CraftBukkit - add Bukkit remove cause
+         }
+ 
+     }

paper-server/nms-patches/net/minecraft/world/entity/npc/InventoryCarrier.patch

@@ -1,6 +1,17 @@
 --- a/net/minecraft/world/entity/npc/InventoryCarrier.java
 +++ b/net/minecraft/world/entity/npc/InventoryCarrier.java
-@@ -23,6 +23,13 @@
+@@ -6,6 +6,10 @@
+ import net.minecraft.world.entity.item.EntityItem;
+ import net.minecraft.world.item.ItemStack;
+ 
++// CraftBukkit start
++import org.bukkit.event.entity.EntityRemoveEvent;
++// CraftBukkit end
++
+ public interface InventoryCarrier {
+ 
+     String TAG_INVENTORY = "Inventory";
+@@ -23,13 +27,20 @@
                  return;
              }
  
@@ -14,3 +25,11 @@
              entityinsentient.onItemPickup(entityitem);
              int i = itemstack.getCount();
              ItemStack itemstack1 = inventorysubcontainer.addItem(itemstack);
+ 
+             entityinsentient.take(entityitem, i - itemstack1.getCount());
+             if (itemstack1.isEmpty()) {
+-                entityitem.discard();
++                entityitem.discard(EntityRemoveEvent.Cause.PICKUP); // CraftBukkit - add Bukkit remove cause
+             } else {
+                 itemstack.setCount(itemstack1.getCount());
+             }

paper-server/nms-patches/net/minecraft/world/entity/player/EntityHuman.patch

@@ -1,6 +1,6 @@
 --- a/net/minecraft/world/entity/player/EntityHuman.java
 +++ b/net/minecraft/world/entity/player/EntityHuman.java
-@@ -112,6 +112,21 @@
+@@ -112,6 +112,22 @@
  import net.minecraft.world.scores.ScoreboardTeam;
  import org.slf4j.Logger;
  
@@ -15,6 +15,7 @@
 +import org.bukkit.event.entity.EntityCombustByEntityEvent;
 +import org.bukkit.event.entity.EntityExhaustionEvent;
 +import org.bukkit.event.entity.EntityKnockbackEvent;
++import org.bukkit.event.entity.EntityRemoveEvent;
 +import org.bukkit.event.player.PlayerDropItemEvent;
 +import org.bukkit.event.player.PlayerVelocityEvent;
 +// CraftBukkit end
@@ -22,7 +23,7 @@
  public abstract class EntityHuman extends EntityLiving {
  
      private static final Logger LOGGER = LogUtils.getLogger();
-@@ -127,7 +142,8 @@
+@@ -127,7 +143,8 @@
      public static final float SWIMMING_BB_HEIGHT = 0.6F;
      public static final float DEFAULT_EYE_HEIGHT = 1.62F;
      public static final EntitySize STANDING_DIMENSIONS = EntitySize.scalable(0.6F, 1.8F);
@@ -32,7 +33,7 @@
      private static final DataWatcherObject<Float> DATA_PLAYER_ABSORPTION_ID = DataWatcher.defineId(EntityHuman.class, DataWatcherRegistry.FLOAT);
      private static final DataWatcherObject<Integer> DATA_SCORE_ID = DataWatcher.defineId(EntityHuman.class, DataWatcherRegistry.INT);
      protected static final DataWatcherObject<Byte> DATA_PLAYER_MODE_CUSTOMISATION = DataWatcher.defineId(EntityHuman.class, DataWatcherRegistry.BYTE);
-@@ -136,10 +152,10 @@
+@@ -136,10 +153,10 @@
      protected static final DataWatcherObject<NBTTagCompound> DATA_SHOULDER_RIGHT = DataWatcher.defineId(EntityHuman.class, DataWatcherRegistry.COMPOUND_TAG);
      private long timeEntitySatOnShoulder;
      private final PlayerInventory inventory = new PlayerInventory(this);
@@ -45,7 +46,7 @@
      protected int jumpTriggerTime;
      public float oBob;
      public float bob;
-@@ -168,6 +184,16 @@
+@@ -168,6 +185,16 @@
      public EntityFishingHook fishing;
      protected float hurtDir;
  
@@ -62,7 +63,7 @@
      public EntityHuman(World world, BlockPosition blockposition, float f, GameProfile gameprofile) {
          super(EntityTypes.PLAYER, world);
          this.lastItemInMainHand = ItemStack.EMPTY;
-@@ -312,7 +338,7 @@
+@@ -312,7 +339,7 @@
          ItemStack itemstack = this.getItemBySlot(EnumItemSlot.HEAD);
  
          if (itemstack.is(Items.TURTLE_HELMET) && !this.isEyeInFluid(TagsFluid.WATER)) {
@@ -71,7 +72,7 @@
          }
  
      }
-@@ -482,8 +508,14 @@
+@@ -482,8 +509,14 @@
      public void rideTick() {
          if (!this.level().isClientSide && this.wantsToStopRiding() && this.isPassenger()) {
              this.stopRiding();
@@ -88,7 +89,7 @@
              super.rideTick();
              this.oBob = this.bob;
              this.bob = 0.0F;
-@@ -505,7 +537,8 @@
+@@ -505,7 +538,8 @@
  
          if (this.level().getDifficulty() == EnumDifficulty.PEACEFUL && this.level().getGameRules().getBoolean(GameRules.RULE_NATURAL_REGENERATION)) {
              if (this.getHealth() < this.getMaxHealth() && this.tickCount % 20 == 0) {
@@ -98,7 +99,7 @@
              }
  
              if (this.foodData.needsFood() && this.tickCount % 10 == 0) {
-@@ -665,6 +698,13 @@
+@@ -665,6 +699,13 @@
  
      @Nullable
      public EntityItem drop(ItemStack itemstack, boolean flag, boolean flag1) {
@@ -112,7 +113,7 @@
          if (itemstack.isEmpty()) {
              return null;
          } else {
-@@ -699,6 +739,33 @@
+@@ -699,6 +740,33 @@
                  entityitem.setDeltaMovement((double) (-f3 * f2 * 0.3F) + Math.cos((double) f5) * (double) f6, (double) (-f1 * 0.3F + 0.1F + (this.random.nextFloat() - this.random.nextFloat()) * 0.1F), (double) (f4 * f2 * 0.3F) + Math.sin((double) f5) * (double) f6);
              }
  
@@ -146,7 +147,7 @@
              return entityitem;
          }
      }
-@@ -789,7 +856,7 @@
+@@ -789,7 +857,7 @@
          }
  
          if (nbttagcompound.contains("LastDeathLocation", 10)) {
@@ -155,7 +156,7 @@
              Logger logger = EntityHuman.LOGGER;
  
              Objects.requireNonNull(logger);
-@@ -822,7 +889,7 @@
+@@ -822,7 +890,7 @@
          }
  
          this.getLastDeathLocation().flatMap((globalpos) -> {
@@ -164,7 +165,7 @@
              Logger logger = EntityHuman.LOGGER;
  
              Objects.requireNonNull(logger);
-@@ -849,12 +916,12 @@
+@@ -849,12 +917,12 @@
                  return false;
              } else {
                  if (!this.level().isClientSide) {
@@ -179,7 +180,7 @@
                      }
  
                      if (this.level().getDifficulty() == EnumDifficulty.EASY) {
-@@ -866,7 +933,13 @@
+@@ -866,7 +934,13 @@
                      }
                  }
  
@@ -194,7 +195,7 @@
              }
          }
      }
-@@ -886,10 +959,29 @@
+@@ -886,10 +960,29 @@
      }
  
      public boolean canHarmPlayer(EntityHuman entityhuman) {
@@ -227,7 +228,7 @@
      }
  
      @Override
-@@ -931,8 +1023,13 @@
+@@ -931,8 +1024,13 @@
          }
      }
  
@@ -242,7 +243,7 @@
          if (!this.isInvulnerableTo(damagesource)) {
              f = this.getDamageAfterArmorAbsorb(damagesource, f);
              f = this.getDamageAfterMagicAbsorb(damagesource, f);
-@@ -947,7 +1044,7 @@
+@@ -947,7 +1045,7 @@
              }
  
              if (f != 0.0F) {
@@ -251,7 +252,7 @@
                  this.getCombatTracker().recordDamage(damagesource, f);
                  this.setHealth(this.getHealth() - f);
                  if (f < 3.4028235E37F) {
-@@ -957,6 +1054,7 @@
+@@ -957,6 +1055,7 @@
                  this.gameEvent(GameEvent.ENTITY_DAMAGE);
              }
          }
@@ -259,7 +260,7 @@
      }
  
      @Override
-@@ -1121,7 +1219,7 @@
+@@ -1121,7 +1220,7 @@
  
                  f *= 0.2F + f2 * f2 * 0.8F;
                  f1 *= f2;
@@ -268,7 +269,7 @@
                  if (f > 0.0F || f1 > 0.0F) {
                      boolean flag = f2 > 0.9F;
                      boolean flag1 = false;
-@@ -1160,8 +1258,15 @@
+@@ -1160,8 +1259,15 @@
                      if (entity instanceof EntityLiving) {
                          f3 = ((EntityLiving) entity).getHealth();
                          if (j > 0 && !entity.isOnFire()) {
@@ -286,7 +287,7 @@
                          }
                      }
  
-@@ -1171,7 +1276,7 @@
+@@ -1171,7 +1277,7 @@
                      if (flag5) {
                          if (i > 0) {
                              if (entity instanceof EntityLiving) {
@@ -295,7 +296,7 @@
                              } else {
                                  entity.push((double) (-MathHelper.sin(this.getYRot() * 0.017453292F) * (float) i * 0.5F), 0.1D, (double) (MathHelper.cos(this.getYRot() * 0.017453292F) * (float) i * 0.5F));
                              }
-@@ -1189,8 +1294,11 @@
+@@ -1189,8 +1295,11 @@
                                  EntityLiving entityliving = (EntityLiving) iterator.next();
  
                                  if (entityliving != this && entityliving != entity && !this.isAlliedTo((Entity) entityliving) && (!(entityliving instanceof EntityArmorStand) || !((EntityArmorStand) entityliving).isMarker()) && this.distanceToSqr((Entity) entityliving) < 9.0D) {
@@ -309,7 +310,7 @@
                                  }
                              }
  
-@@ -1199,9 +1307,26 @@
+@@ -1199,9 +1308,26 @@
                          }
  
                          if (entity instanceof EntityPlayer && entity.hurtMarked) {
@@ -336,7 +337,7 @@
                          }
  
                          if (flag2) {
-@@ -1246,7 +1371,14 @@
+@@ -1246,7 +1372,14 @@
  
                              this.awardStat(StatisticList.DAMAGE_DEALT, Math.round(f5 * 10.0F));
                              if (j > 0) {
@@ -352,7 +353,7 @@
                              }
  
                              if (this.level() instanceof WorldServer && f5 > 2.0F) {
-@@ -1256,12 +1388,17 @@
+@@ -1256,12 +1389,17 @@
                              }
                          }
  
@@ -371,7 +372,23 @@
                      }
                  }
  
-@@ -1338,6 +1475,12 @@
+@@ -1307,7 +1445,14 @@
+ 
+     @Override
+     public void remove(Entity.RemovalReason entity_removalreason) {
+-        super.remove(entity_removalreason);
++        // CraftBukkit start - add Bukkit remove cause
++        this.remove(entity_removalreason, null);
++    }
++
++    @Override
++    public void remove(Entity.RemovalReason entity_removalreason, EntityRemoveEvent.Cause cause) {
++        super.remove(entity_removalreason, cause);
++        // CraftBukkit end
+         this.inventoryMenu.removed(this);
+         if (this.containerMenu != null && this.hasContainerOpen()) {
+             this.doCloseContainer();
+@@ -1338,6 +1483,12 @@
      }
  
      public Either<EntityHuman.EnumBedResult, Unit> startSleepInBed(BlockPosition blockposition) {
@@ -384,7 +401,7 @@
          this.startSleeping(blockposition);
          this.sleepCounter = 0;
          return Either.right(Unit.INSTANCE);
-@@ -1425,9 +1568,9 @@
+@@ -1425,9 +1576,9 @@
          super.jumpFromGround();
          this.awardStat(StatisticList.JUMP);
          if (this.isSprinting()) {
@@ -396,7 +413,7 @@
          }
  
      }
-@@ -1454,7 +1597,11 @@
+@@ -1454,7 +1605,11 @@
  
              this.setDeltaMovement(vec3d2.x, d0 * 0.6D, vec3d2.z);
              this.resetFallDistance();
@@ -409,7 +426,7 @@
          } else {
              super.travel(vec3d);
          }
-@@ -1507,12 +1654,24 @@
+@@ -1507,12 +1662,24 @@
      }
  
      public void startFallFlying() {
@@ -435,7 +452,7 @@
      }
  
      @Override
-@@ -1626,10 +1785,21 @@
+@@ -1626,10 +1793,21 @@
          return this.experienceLevel >= 30 ? 112 + (this.experienceLevel - 30) * 9 : (this.experienceLevel >= 15 ? 37 + (this.experienceLevel - 15) * 5 : 7 + this.experienceLevel * 2);
      }
  
@@ -458,7 +475,7 @@
              }
  
          }
-@@ -1715,13 +1885,20 @@
+@@ -1715,13 +1893,20 @@
  
      @Override
      public void setItemSlot(EnumItemSlot enumitemslot, ItemStack itemstack) {
@@ -482,7 +499,7 @@
          }
  
      }
-@@ -1760,26 +1937,31 @@
+@@ -1760,26 +1945,31 @@
  
      protected void removeEntitiesOnShoulder() {
          if (this.timeEntitySatOnShoulder + 20L < this.level().getGameTime()) {

paper-server/nms-patches/net/minecraft/world/entity/projectile/EntityArrow.patch

@@ -1,19 +1,20 @@
 --- a/net/minecraft/world/entity/projectile/EntityArrow.java
 +++ b/net/minecraft/world/entity/projectile/EntityArrow.java
-@@ -47,6 +47,12 @@
+@@ -47,6 +47,13 @@
  import net.minecraft.world.phys.Vec3D;
  import net.minecraft.world.phys.shapes.VoxelShape;
  
 +// CraftBukkit start
 +import net.minecraft.world.entity.item.EntityItem;
 +import org.bukkit.event.entity.EntityCombustByEntityEvent;
++import org.bukkit.event.entity.EntityRemoveEvent;
 +import org.bukkit.event.player.PlayerPickupArrowEvent;
 +// CraftBukkit end
 +
  public abstract class EntityArrow extends IProjectile {
  
      private static final double ARROW_BASE_DAMAGE = 2.0D;
-@@ -219,7 +225,7 @@
+@@ -219,7 +226,7 @@
                  }
  
                  if (object != null && !flag) {
@@ -22,7 +23,25 @@
                      this.hasImpulse = true;
                  }
  
-@@ -367,7 +373,13 @@
+@@ -304,7 +311,7 @@
+     protected void tickDespawn() {
+         ++this.life;
+         if (this.life >= 1200) {
+-            this.discard();
++            this.discard(EntityRemoveEvent.Cause.DESPAWN); // CraftBukkit - add Bukkit remove cause
+         }
+ 
+     }
+@@ -337,7 +344,7 @@
+             }
+ 
+             if (this.piercingIgnoreEntityIds.size() >= this.getPierceLevel() + 1) {
+-                this.discard();
++                this.discard(EntityRemoveEvent.Cause.HIT); // CraftBukkit - add Bukkit remove cause
+                 return;
+             }
+ 
+@@ -367,7 +374,13 @@
          boolean flag1 = entity.getType().is(TagsEntity.DEFLECTS_ARROWS);
  
          if (this.isOnFire() && !flag && !flag1) {
@@ -37,7 +56,25 @@
          }
  
          if (entity.hurt(damagesource, (float) i)) {
-@@ -545,7 +557,22 @@
+@@ -418,7 +431,7 @@
+ 
+             this.playSound(this.soundEvent, 1.0F, 1.2F / (this.random.nextFloat() * 0.2F + 0.9F));
+             if (this.getPierceLevel() <= 0) {
+-                this.discard();
++                this.discard(EntityRemoveEvent.Cause.HIT); // CraftBukkit - add Bukkit remove cause
+             }
+         } else if (flag1) {
+             this.deflect();
+@@ -432,7 +445,7 @@
+                     this.spawnAtLocation(this.getPickupItem(), 0.1F);
+                 }
+ 
+-                this.discard();
++                this.discard(EntityRemoveEvent.Cause.HIT); // CraftBukkit - add Bukkit remove cause
+             }
+         }
+ 
+@@ -545,9 +558,24 @@
      @Override
      public void playerTouch(EntityHuman entityhuman) {
          if (!this.level().isClientSide && (this.inGround || this.isNoPhysics()) && this.shakeTime <= 0) {
@@ -59,5 +96,8 @@
 +            if ((this.pickup == EntityArrow.PickupStatus.ALLOWED && entityhuman.getInventory().add(itemstack)) || (this.pickup == EntityArrow.PickupStatus.CREATIVE_ONLY && entityhuman.getAbilities().instabuild)) {
 +                // CraftBukkit end
                  entityhuman.take(this, 1);
-                 this.discard();
+-                this.discard();
++                this.discard(EntityRemoveEvent.Cause.PICKUP); // CraftBukkit - add Bukkit remove cause
              }
+ 
+         }

paper-server/nms-patches/net/minecraft/world/entity/projectile/EntityDragonFireball.patch

@@ -0,0 +1,22 @@
+--- a/net/minecraft/world/entity/projectile/EntityDragonFireball.java
++++ b/net/minecraft/world/entity/projectile/EntityDragonFireball.java
+@@ -15,6 +15,10 @@
+ import net.minecraft.world.phys.MovingObjectPosition;
+ import net.minecraft.world.phys.MovingObjectPositionEntity;
+ 
++// CraftBukkit start
++import org.bukkit.event.entity.EntityRemoveEvent;
++// CraftBukkit end
++
+ public class EntityDragonFireball extends EntityFireball {
+ 
+     public static final float SPLASH_RANGE = 4.0F;
+@@ -61,7 +65,7 @@
+ 
+                 this.level().levelEvent(2006, this.blockPosition(), this.isSilent() ? -1 : 1);
+                 this.level().addFreshEntity(entityareaeffectcloud);
+-                this.discard();
++                this.discard(EntityRemoveEvent.Cause.HIT); // CraftBukkit - add Bukkit remove cause
+             }
+ 
+         }

paper-server/nms-patches/net/minecraft/world/entity/projectile/EntityEgg.patch

@@ -1,6 +1,6 @@
 --- a/net/minecraft/world/entity/projectile/EntityEgg.java
 +++ b/net/minecraft/world/entity/projectile/EntityEgg.java
-@@ -11,6 +11,15 @@
+@@ -11,6 +11,16 @@
  import net.minecraft.world.phys.MovingObjectPosition;
  import net.minecraft.world.phys.MovingObjectPositionEntity;
  
@@ -10,13 +10,14 @@
 +import org.bukkit.entity.Ageable;
 +import org.bukkit.entity.EntityType;
 +import org.bukkit.entity.Player;
++import org.bukkit.event.entity.EntityRemoveEvent;
 +import org.bukkit.event.player.PlayerEggThrowEvent;
 +// CraftBukkit end
 +
  public class EntityEgg extends EntityProjectileThrowable {
  
      public EntityEgg(EntityTypes<? extends EntityEgg> entitytypes, World world) {
-@@ -47,20 +56,47 @@
+@@ -47,26 +57,53 @@
      protected void onHit(MovingObjectPosition movingobjectposition) {
          super.onHit(movingobjectposition);
          if (!this.level().isClientSide) {
@@ -69,3 +70,10 @@
                      }
                  }
              }
+ 
+             this.level().broadcastEntityEvent(this, (byte) 3);
+-            this.discard();
++            this.discard(EntityRemoveEvent.Cause.HIT); // CraftBukkit - add Bukkit remove cause
+         }
+ 
+     }

paper-server/nms-patches/net/minecraft/world/entity/projectile/EntityEnderPearl.patch

@@ -1,6 +1,6 @@
 --- a/net/minecraft/world/entity/projectile/EntityEnderPearl.java
 +++ b/net/minecraft/world/entity/projectile/EntityEnderPearl.java
-@@ -18,6 +18,13 @@
+@@ -18,6 +18,14 @@
  import net.minecraft.world.phys.MovingObjectPosition;
  import net.minecraft.world.phys.MovingObjectPositionEntity;
  
@@ -8,13 +8,14 @@
 +import org.bukkit.Bukkit;
 +import org.bukkit.craftbukkit.event.CraftEventFactory;
 +import org.bukkit.event.entity.CreatureSpawnEvent;
++import org.bukkit.event.entity.EntityRemoveEvent;
 +import org.bukkit.event.player.PlayerTeleportEvent;
 +// CraftBukkit end
 +
  public class EntityEnderPearl extends EntityProjectileThrowable {
  
      public EntityEnderPearl(EntityTypes<? extends EntityEnderPearl> entitytypes, World world) {
-@@ -54,23 +61,34 @@
+@@ -54,23 +62,34 @@
                  EntityPlayer entityplayer = (EntityPlayer) entity;
  
                  if (entityplayer.connection.isAcceptingMessages() && entityplayer.level() == this.level() && !entityplayer.isSleeping()) {
@@ -62,7 +63,25 @@
                      this.level().playSound((EntityHuman) null, this.getX(), this.getY(), this.getZ(), SoundEffects.PLAYER_TELEPORT, SoundCategory.PLAYERS);
                  }
              } else if (entity != null) {
-@@ -100,7 +118,7 @@
+@@ -78,7 +97,7 @@
+                 entity.resetFallDistance();
+             }
+ 
+-            this.discard();
++            this.discard(EntityRemoveEvent.Cause.HIT); // CraftBukkit - add Bukkit remove cause
+         }
+ 
+     }
+@@ -88,7 +107,7 @@
+         Entity entity = this.getOwner();
+ 
+         if (entity instanceof EntityPlayer && !entity.isAlive() && this.level().getGameRules().getBoolean(GameRules.RULE_ENDER_PEARLS_VANISH_ON_DEATH)) {
+-            this.discard();
++            this.discard(EntityRemoveEvent.Cause.DESPAWN); // CraftBukkit - add Bukkit remove cause
+         } else {
+             super.tick();
+         }
+@@ -100,7 +119,7 @@
      public Entity changeDimension(WorldServer worldserver) {
          Entity entity = this.getOwner();
  

paper-server/nms-patches/net/minecraft/world/entity/projectile/EntityEnderSignal.patch

@@ -1,6 +1,17 @@
 --- a/net/minecraft/world/entity/projectile/EntityEnderSignal.java
 +++ b/net/minecraft/world/entity/projectile/EntityEnderSignal.java
-@@ -35,7 +35,7 @@
+@@ -16,6 +16,10 @@
+ import net.minecraft.world.level.World;
+ import net.minecraft.world.phys.Vec3D;
+ 
++// CraftBukkit start
++import org.bukkit.event.entity.EntityRemoveEvent;
++// CraftBukkit end
++
+ public class EntityEnderSignal extends Entity implements ItemSupplier {
+ 
+     private static final DataWatcherObject<ItemStack> DATA_ITEM_STACK = DataWatcher.defineId(EntityEnderSignal.class, DataWatcherRegistry.ITEM_STACK);
+@@ -35,7 +39,7 @@
      }
  
      public void setItem(ItemStack itemstack) {
@@ -9,7 +20,16 @@
              this.getEntityData().set(EntityEnderSignal.DATA_ITEM_STACK, itemstack.copyWithCount(1));
          }
  
-@@ -177,7 +177,7 @@
+@@ -150,7 +154,7 @@
+             ++this.life;
+             if (this.life > 80 && !this.level().isClientSide) {
+                 this.playSound(SoundEffects.ENDER_EYE_DEATH, 1.0F, 1.0F);
+-                this.discard();
++                this.discard(this.surviveAfterDeath ? EntityRemoveEvent.Cause.DROP : EntityRemoveEvent.Cause.DESPAWN); // CraftBukkit - add Bukkit remove cause
+                 if (this.surviveAfterDeath) {
+                     this.level().addFreshEntity(new EntityItem(this.level(), this.getX(), this.getY(), this.getZ(), this.getItem()));
+                 } else {
+@@ -177,7 +181,7 @@
      public void readAdditionalSaveData(NBTTagCompound nbttagcompound) {
          ItemStack itemstack = ItemStack.of(nbttagcompound.getCompound("Item"));
  

paper-server/nms-patches/net/minecraft/world/entity/projectile/EntityEvokerFangs.patch

@@ -1,6 +1,26 @@
 --- a/net/minecraft/world/entity/projectile/EntityEvokerFangs.java
 +++ b/net/minecraft/world/entity/projectile/EntityEvokerFangs.java
-@@ -129,7 +129,7 @@
+@@ -14,6 +14,10 @@
+ import net.minecraft.world.entity.TraceableEntity;
+ import net.minecraft.world.level.World;
+ 
++// CraftBukkit start
++import org.bukkit.event.entity.EntityRemoveEvent;
++// CraftBukkit end
++
+ public class EntityEvokerFangs extends Entity implements TraceableEntity {
+ 
+     public static final int ATTACK_DURATION = 20;
+@@ -118,7 +122,7 @@
+             }
+ 
+             if (--this.lifeTicks < 0) {
+-                this.discard();
++                this.discard(EntityRemoveEvent.Cause.DESPAWN); // CraftBukkit - add Bukkit remove cause
+             }
+         }
+ 
+@@ -129,7 +133,7 @@
  
          if (entityliving.isAlive() && !entityliving.isInvulnerable() && entityliving != entityliving1) {
              if (entityliving1 == null) {

paper-server/nms-patches/net/minecraft/world/entity/projectile/EntityFireball.patch

@@ -1,10 +1,13 @@
 --- a/net/minecraft/world/entity/projectile/EntityFireball.java
 +++ b/net/minecraft/world/entity/projectile/EntityFireball.java
-@@ -17,11 +17,15 @@
+@@ -17,11 +17,18 @@
  import net.minecraft.world.phys.MovingObjectPosition;
  import net.minecraft.world.phys.Vec3D;
  
-+import org.bukkit.craftbukkit.event.CraftEventFactory; // CraftBukkit
++// CraftBukkit start
++import org.bukkit.craftbukkit.event.CraftEventFactory;
++import org.bukkit.event.entity.EntityRemoveEvent;
++// CraftBukkit end
 +
  public abstract class EntityFireball extends IProjectile {
  
@@ -16,7 +19,7 @@
  
      protected EntityFireball(EntityTypes<? extends EntityFireball> entitytypes, World world) {
          super(entitytypes, world);
-@@ -36,6 +40,12 @@
+@@ -36,6 +43,12 @@
          this(entitytypes, world);
          this.moveTo(d0, d1, d2, this.getYRot(), this.getXRot());
          this.reapplyPosition();
@@ -29,7 +32,16 @@
          double d6 = Math.sqrt(d3 * d3 + d4 * d4 + d5 * d5);
  
          if (d6 != 0.0D) {
-@@ -86,7 +96,13 @@
+@@ -76,7 +89,7 @@
+         Entity entity = this.getOwner();
+ 
+         if (!this.level().isClientSide && (entity != null && entity.isRemoved() || !this.level().hasChunkAt(this.blockPosition()))) {
+-            this.discard();
++            this.discard(EntityRemoveEvent.Cause.DESPAWN); // CraftBukkit - add Bukkit remove cause
+         } else {
+             super.tick();
+             if (this.shouldBurn()) {
+@@ -86,7 +99,13 @@
              MovingObjectPosition movingobjectposition = ProjectileHelper.getHitResultOnMoveVector(this, this::canHitEntity, this.getClipType());
  
              if (movingobjectposition.getType() != MovingObjectPosition.EnumMovingObjectType.MISS) {
@@ -44,7 +56,7 @@
              }
  
              this.checkInsideBlocks();
-@@ -184,6 +200,11 @@
+@@ -184,6 +203,11 @@
  
              if (entity != null) {
                  if (!this.level().isClientSide) {

paper-server/nms-patches/net/minecraft/world/entity/projectile/EntityFireworks.patch

@@ -1,6 +1,17 @@
 --- a/net/minecraft/world/entity/projectile/EntityFireworks.java
 +++ b/net/minecraft/world/entity/projectile/EntityFireworks.java
-@@ -143,7 +143,7 @@
+@@ -28,6 +28,10 @@
+ import net.minecraft.world.phys.MovingObjectPositionEntity;
+ import net.minecraft.world.phys.Vec3D;
+ 
++// CraftBukkit start
++import org.bukkit.event.entity.EntityRemoveEvent;
++// CraftBukkit end
++
+ public class EntityFireworks extends IProjectile implements ItemSupplier {
+ 
+     public static final DataWatcherObject<ItemStack> DATA_ID_FIREWORKS_ITEM = DataWatcher.defineId(EntityFireworks.class, DataWatcherRegistry.ITEM_STACK);
+@@ -143,7 +147,7 @@
          MovingObjectPosition movingobjectposition = ProjectileHelper.getHitResultOnMoveVector(this, this::canHitEntity);
  
          if (!this.noPhysics) {
@@ -9,7 +20,7 @@
              this.hasImpulse = true;
          }
  
-@@ -158,7 +158,11 @@
+@@ -158,7 +162,11 @@
          }
  
          if (!this.level().isClientSide && this.life > this.lifetime) {
@@ -22,7 +33,15 @@
          }
  
      }
-@@ -174,7 +178,11 @@
+@@ -167,14 +175,18 @@
+         this.level().broadcastEntityEvent(this, (byte) 17);
+         this.gameEvent(GameEvent.EXPLODE, this.getOwner());
+         this.dealExplosionDamage();
+-        this.discard();
++        this.discard(EntityRemoveEvent.Cause.EXPLODE); // CraftBukkit - add Bukkit remove cause
+     }
+ 
+     @Override
      protected void onHitEntity(MovingObjectPositionEntity movingobjectpositionentity) {
          super.onHitEntity(movingobjectpositionentity);
          if (!this.level().isClientSide) {
@@ -35,7 +54,7 @@
          }
      }
  
-@@ -184,7 +192,11 @@
+@@ -184,7 +196,11 @@
  
          this.level().getBlockState(blockposition).entityInside(this.level(), blockposition, this);
          if (!this.level().isClientSide() && this.hasExplosion()) {

paper-server/nms-patches/net/minecraft/world/entity/projectile/EntityFishingHook.patch

@@ -1,19 +1,20 @@
 --- a/net/minecraft/world/entity/projectile/EntityFishingHook.java
 +++ b/net/minecraft/world/entity/projectile/EntityFishingHook.java
-@@ -46,6 +46,12 @@
+@@ -46,6 +46,13 @@
  import net.minecraft.world.phys.Vec3D;
  import org.slf4j.Logger;
  
 +// CraftBukkit start
 +import org.bukkit.entity.Player;
 +import org.bukkit.entity.FishHook;
++import org.bukkit.event.entity.EntityRemoveEvent;
 +import org.bukkit.event.player.PlayerFishEvent;
 +// CraftBukkit end
 +
  public class EntityFishingHook extends IProjectile {
  
      private static final Logger LOGGER = LogUtils.getLogger();
-@@ -67,6 +73,18 @@
+@@ -67,6 +74,18 @@
      private final int luck;
      private final int lureSpeed;
  
@@ -32,7 +33,31 @@
      private EntityFishingHook(EntityTypes<? extends EntityFishingHook> entitytypes, World world, int i, int j) {
          super(entitytypes, world);
          this.syncronizedRandom = RandomSource.create();
-@@ -261,7 +279,7 @@
+@@ -147,12 +166,12 @@
+         EntityHuman entityhuman = this.getPlayerOwner();
+ 
+         if (entityhuman == null) {
+-            this.discard();
++            this.discard(EntityRemoveEvent.Cause.DESPAWN); // CraftBukkit - add Bukkit remove cause
+         } else if (this.level().isClientSide || !this.shouldStopFishing(entityhuman)) {
+             if (this.onGround()) {
+                 ++this.life;
+                 if (this.life >= 1200) {
+-                    this.discard();
++                    this.discard(EntityRemoveEvent.Cause.DESPAWN); // CraftBukkit - add Bukkit remove cause
+                     return;
+                 }
+             } else {
+@@ -253,7 +272,7 @@
+         if (!entityhuman.isRemoved() && entityhuman.isAlive() && (flag || flag1) && this.distanceToSqr((Entity) entityhuman) <= 1024.0D) {
+             return false;
+         } else {
+-            this.discard();
++            this.discard(EntityRemoveEvent.Cause.DESPAWN); // CraftBukkit - add Bukkit remove cause
+             return true;
+         }
+     }
+@@ -261,7 +280,7 @@
      private void checkCollision() {
          MovingObjectPosition movingobjectposition = ProjectileHelper.getHitResultOnMoveVector(this, this::canHitEntity);
  
@@ -41,7 +66,7 @@
      }
  
      @Override
-@@ -294,11 +312,11 @@
+@@ -294,11 +313,11 @@
          int i = 1;
          BlockPosition blockposition1 = blockposition.above();
  
@@ -55,7 +80,7 @@
              --i;
          }
  
-@@ -308,6 +326,10 @@
+@@ -308,6 +327,10 @@
                  this.timeUntilLured = 0;
                  this.timeUntilHooked = 0;
                  this.getEntityData().set(EntityFishingHook.DATA_BITING, false);
@@ -66,7 +91,7 @@
              }
          } else {
              float f;
-@@ -341,6 +363,13 @@
+@@ -341,6 +364,13 @@
                          worldserver.sendParticles(Particles.FISHING, d0, d1, d2, 0, (double) (-f4), 0.01D, (double) f3, 1.0D);
                      }
                  } else {
@@ -80,7 +105,7 @@
                      this.playSound(SoundEffects.FISHING_BOBBER_SPLASH, 0.25F, 1.0F + (this.random.nextFloat() - this.random.nextFloat()) * 0.4F);
                      double d3 = this.getY() + 0.5D;
  
-@@ -373,12 +402,16 @@
+@@ -373,12 +403,16 @@
                  }
  
                  if (this.timeUntilLured <= 0) {
@@ -101,7 +126,7 @@
              }
          }
  
-@@ -445,6 +478,14 @@
+@@ -445,6 +479,14 @@
              int i = 0;
  
              if (this.hookedIn != null) {
@@ -116,7 +141,7 @@
                  this.pullEntity(this.hookedIn);
                  CriterionTriggers.FISHING_ROD_HOOKED.trigger((EntityPlayer) entityhuman, itemstack, this, Collections.emptyList());
                  this.level().broadcastEntityEvent(this, (byte) 31);
-@@ -460,6 +501,15 @@
+@@ -460,6 +502,15 @@
                  while (iterator.hasNext()) {
                      ItemStack itemstack1 = (ItemStack) iterator.next();
                      EntityItem entityitem = new EntityItem(this.level(), this.getX(), this.getY(), this.getZ(), itemstack1);
@@ -132,7 +157,7 @@
                      double d0 = entityhuman.getX() - this.getX();
                      double d1 = entityhuman.getY() - this.getY();
                      double d2 = entityhuman.getZ() - this.getZ();
-@@ -467,7 +517,11 @@
+@@ -467,7 +518,11 @@
  
                      entityitem.setDeltaMovement(d0 * 0.1D, d1 * 0.1D + Math.sqrt(Math.sqrt(d0 * d0 + d1 * d1 + d2 * d2)) * 0.08D, d2 * 0.1D);
                      this.level().addFreshEntity(entityitem);
@@ -145,7 +170,7 @@
                      if (itemstack1.is(TagsItem.FISHES)) {
                          entityhuman.awardStat(StatisticList.FISH_CAUGHT, 1);
                      }
-@@ -477,8 +531,25 @@
+@@ -477,10 +532,27 @@
              }
  
              if (this.onGround()) {
@@ -169,5 +194,25 @@
 +            }
 +            // CraftBukkit end
  
-             this.discard();
+-            this.discard();
++            this.discard(EntityRemoveEvent.Cause.DESPAWN); // CraftBukkit - add Bukkit remove cause
              return i;
+         } else {
+             return 0;
+@@ -513,8 +585,15 @@
+ 
+     @Override
+     public void remove(Entity.RemovalReason entity_removalreason) {
++        // CraftBukkit start - add Bukkit remove cause
++        this.remove(entity_removalreason, null);
++    }
++
++    @Override
++    public void remove(Entity.RemovalReason entity_removalreason, EntityRemoveEvent.Cause cause) {
++        // CraftBukkit end
+         this.updateOwnerInfo((EntityFishingHook) null);
+-        super.remove(entity_removalreason);
++        super.remove(entity_removalreason, cause); // CraftBukkit - add Bukkit remove cause
+     }
+ 
+     @Override

paper-server/nms-patches/net/minecraft/world/entity/projectile/EntityLargeFireball.patch

@@ -1,10 +1,13 @@
 --- a/net/minecraft/world/entity/projectile/EntityLargeFireball.java
 +++ b/net/minecraft/world/entity/projectile/EntityLargeFireball.java
-@@ -9,17 +9,21 @@
+@@ -9,17 +9,24 @@
  import net.minecraft.world.phys.MovingObjectPosition;
  import net.minecraft.world.phys.MovingObjectPositionEntity;
  
-+import org.bukkit.event.entity.ExplosionPrimeEvent; // CraftBukkit
++// CraftBukkit start
++import org.bukkit.event.entity.EntityRemoveEvent;
++import org.bukkit.event.entity.ExplosionPrimeEvent;
++// CraftBukkit end
 +
  public class EntityLargeFireball extends EntityFireballFireball {
  
@@ -22,11 +25,12 @@
      }
  
      @Override
-@@ -28,7 +32,15 @@
+@@ -28,8 +35,16 @@
          if (!this.level().isClientSide) {
              boolean flag = this.level().getGameRules().getBoolean(GameRules.RULE_MOBGRIEFING);
  
 -            this.level().explode(this, this.getX(), this.getY(), this.getZ(), (float) this.explosionPower, flag, World.a.MOB);
+-            this.discard();
 +            // CraftBukkit start - fire ExplosionPrimeEvent
 +            ExplosionPrimeEvent event = new ExplosionPrimeEvent((org.bukkit.entity.Explosive) this.getBukkitEntity());
 +            this.level().getCraftServer().getPluginManager().callEvent(event);
@@ -36,10 +40,11 @@
 +                this.level().explode(this, this.getX(), this.getY(), this.getZ(), event.getRadius(), event.getFire(), World.a.MOB);
 +            }
 +            // CraftBukkit end
-             this.discard();
++            this.discard(EntityRemoveEvent.Cause.HIT); // CraftBukkit - add Bukkit remove cause
          }
  
-@@ -59,7 +71,8 @@
+     }
+@@ -59,7 +74,8 @@
      public void readAdditionalSaveData(NBTTagCompound nbttagcompound) {
          super.readAdditionalSaveData(nbttagcompound);
          if (nbttagcompound.contains("ExplosionPower", 99)) {

paper-server/nms-patches/net/minecraft/world/entity/projectile/EntityLlamaSpit.patch

@@ -1,6 +1,17 @@
 --- a/net/minecraft/world/entity/projectile/EntityLlamaSpit.java
 +++ b/net/minecraft/world/entity/projectile/EntityLlamaSpit.java
-@@ -32,7 +32,7 @@
+@@ -14,6 +14,10 @@
+ import net.minecraft.world.phys.MovingObjectPositionEntity;
+ import net.minecraft.world.phys.Vec3D;
+ 
++// CraftBukkit start
++import org.bukkit.event.entity.EntityRemoveEvent;
++// CraftBukkit end
++
+ public class EntityLlamaSpit extends IProjectile {
+ 
+     public EntityLlamaSpit(EntityTypes<? extends EntityLlamaSpit> entitytypes, World world) {
+@@ -32,7 +36,7 @@
          Vec3D vec3d = this.getDeltaMovement();
          MovingObjectPosition movingobjectposition = ProjectileHelper.getHitResultOnMoveVector(this, this::canHitEntity);
  
@@ -9,3 +20,24 @@
          double d0 = this.getX() + vec3d.x;
          double d1 = this.getY() + vec3d.y;
          double d2 = this.getZ() + vec3d.z;
+@@ -42,9 +46,9 @@
+         float f1 = 0.06F;
+ 
+         if (this.level().getBlockStates(this.getBoundingBox()).noneMatch(BlockBase.BlockData::isAir)) {
+-            this.discard();
++            this.discard(EntityRemoveEvent.Cause.DESPAWN); // CraftBukkit - add Bukkit remove cause
+         } else if (this.isInWaterOrBubble()) {
+-            this.discard();
++            this.discard(EntityRemoveEvent.Cause.DESPAWN); // CraftBukkit - add Bukkit remove cause
+         } else {
+             this.setDeltaMovement(vec3d.scale(0.9900000095367432D));
+             if (!this.isNoGravity()) {
+@@ -72,7 +76,7 @@
+     protected void onHitBlock(MovingObjectPositionBlock movingobjectpositionblock) {
+         super.onHitBlock(movingobjectpositionblock);
+         if (!this.level().isClientSide) {
+-            this.discard();
++            this.discard(EntityRemoveEvent.Cause.HIT); // CraftBukkit - add Bukkit remove cause
+         }
+ 
+     }

paper-server/nms-patches/net/minecraft/world/entity/projectile/EntityPotion.patch

@@ -1,6 +1,6 @@
 --- a/net/minecraft/world/entity/projectile/EntityPotion.java
 +++ b/net/minecraft/world/entity/projectile/EntityPotion.java
-@@ -31,6 +31,17 @@
+@@ -31,6 +31,18 @@
  import net.minecraft.world.phys.MovingObjectPositionBlock;
  import net.minecraft.world.phys.MovingObjectPositionEntity;
  
@@ -13,12 +13,13 @@
 +import org.bukkit.craftbukkit.entity.CraftLivingEntity;
 +import org.bukkit.craftbukkit.event.CraftEventFactory;
 +import org.bukkit.entity.LivingEntity;
++import org.bukkit.event.entity.EntityRemoveEvent;
 +// CraftBukkit end
 +
  public class EntityPotion extends EntityProjectileThrowable implements ItemSupplier {
  
      public static final double SPLASH_RANGE = 4.0D;
-@@ -99,11 +110,11 @@
+@@ -99,18 +111,18 @@
  
              if (flag) {
                  this.applyWater();
@@ -33,7 +34,15 @@
                  }
              }
  
-@@ -145,9 +156,10 @@
+             int i = potionregistry.hasInstantEffects() ? 2007 : 2002;
+ 
+             this.level().levelEvent(i, this.blockPosition(), PotionUtil.getColor(itemstack));
+-            this.discard();
++            this.discard(EntityRemoveEvent.Cause.HIT); // CraftBukkit - add Bukkit remove cause
+         }
+     }
+ 
+@@ -145,9 +157,10 @@
  
      }
  
@@ -45,7 +54,7 @@
  
          if (!list1.isEmpty()) {
              Entity entity1 = this.getEffectSource();
-@@ -168,24 +180,49 @@
+@@ -168,24 +181,49 @@
                              d1 = 1.0D - Math.sqrt(d0) / 4.0D;
                          }
  
@@ -110,7 +119,7 @@
                          }
                      }
                  }
-@@ -194,7 +231,7 @@
+@@ -194,7 +232,7 @@
  
      }
  
@@ -119,7 +128,7 @@
          EntityAreaEffectCloud entityareaeffectcloud = new EntityAreaEffectCloud(this.level(), this.getX(), this.getY(), this.getZ());
          Entity entity = this.getOwner();
  
-@@ -221,7 +258,14 @@
+@@ -221,7 +259,14 @@
              entityareaeffectcloud.setFixedColor(nbttagcompound.getInt("CustomPotionColor"));
          }
  
@@ -129,13 +138,13 @@
 +        if (!(event.isCancelled() || entityareaeffectcloud.isRemoved())) {
 +            this.level().addFreshEntity(entityareaeffectcloud);
 +        } else {
-+            entityareaeffectcloud.discard();
++            entityareaeffectcloud.discard(null); // CraftBukkit - add Bukkit remove cause
 +        }
 +        // CraftBukkit end
      }
  
      public boolean isLingering() {
-@@ -232,13 +276,25 @@
+@@ -232,13 +277,25 @@
          IBlockData iblockdata = this.level().getBlockState(blockposition);
  
          if (iblockdata.is(TagsBlock.FIRE)) {

paper-server/nms-patches/net/minecraft/world/entity/projectile/EntityShulkerBullet.patch

@@ -1,6 +1,17 @@
 --- a/net/minecraft/world/entity/projectile/EntityShulkerBullet.java
 +++ b/net/minecraft/world/entity/projectile/EntityShulkerBullet.java
-@@ -60,7 +60,20 @@
+@@ -29,6 +29,10 @@
+ import net.minecraft.world.phys.MovingObjectPositionEntity;
+ import net.minecraft.world.phys.Vec3D;
+ 
++// CraftBukkit start
++import org.bukkit.event.entity.EntityRemoveEvent;
++// CraftBukkit end
++
+ public class EntityShulkerBullet extends IProjectile {
+ 
+     private static final double SPEED = 0.15D;
+@@ -60,8 +64,21 @@
          this.finalTarget = entity;
          this.currentMoveDirection = EnumDirection.UP;
          this.selectNextMoveDirection(enumdirection_enumaxis);
@@ -10,18 +21,28 @@
 +    // CraftBukkit start
 +    public Entity getTarget() {
 +        return this.finalTarget;
-+    }
-+
+     }
+ 
 +    public void setTarget(Entity e) {
 +        this.finalTarget = e;
 +        this.currentMoveDirection = EnumDirection.UP;
 +        this.selectNextMoveDirection(EnumDirection.EnumAxis.X);
-     }
++    }
 +    // CraftBukkit end
- 
++
      @Override
      public SoundCategory getSoundSource() {
-@@ -225,7 +238,7 @@
+         return SoundCategory.HOSTILE;
+@@ -194,7 +211,7 @@
+     @Override
+     public void checkDespawn() {
+         if (this.level().getDifficulty() == EnumDifficulty.PEACEFUL) {
+-            this.discard();
++            this.discard(EntityRemoveEvent.Cause.DESPAWN); // CraftBukkit - add Bukkit remove cause
+         }
+ 
+     }
+@@ -225,7 +242,7 @@
              MovingObjectPosition movingobjectposition = ProjectileHelper.getHitResultOnMoveVector(this, this::canHitEntity);
  
              if (movingobjectposition.getType() != MovingObjectPosition.EnumMovingObjectType.MISS) {
@@ -30,7 +51,7 @@
              }
          }
  
-@@ -294,7 +307,7 @@
+@@ -294,7 +311,7 @@
              if (entity instanceof EntityLiving) {
                  EntityLiving entityliving1 = (EntityLiving) entity;
  
@@ -39,7 +60,30 @@
              }
          }
  
-@@ -325,6 +338,11 @@
+@@ -308,14 +325,20 @@
+     }
+ 
+     private void destroy() {
+-        this.discard();
++        // CraftBukkit start - add Bukkit remove cause
++        this.destroy(null);
++    }
++
++    private void destroy(EntityRemoveEvent.Cause cause) {
++        this.discard(cause);
++        // CraftBukkit end
+         this.level().gameEvent(GameEvent.ENTITY_DAMAGE, this.position(), GameEvent.a.of((Entity) this));
+     }
+ 
+     @Override
+     protected void onHit(MovingObjectPosition movingobjectposition) {
+         super.onHit(movingobjectposition);
+-        this.destroy();
++        this.destroy(EntityRemoveEvent.Cause.HIT); // CraftBukkit - add Bukkit remove cause
+     }
+ 
+     @Override
+@@ -325,10 +348,15 @@
  
      @Override
      public boolean hurt(DamageSource damagesource, float f) {
@@ -51,3 +95,8 @@
          if (!this.level().isClientSide) {
              this.playSound(SoundEffects.SHULKER_BULLET_HURT, 1.0F, 1.0F);
              ((WorldServer) this.level()).sendParticles(Particles.CRIT, this.getX(), this.getY(), this.getZ(), 15, 0.2D, 0.2D, 0.2D, 0.0D);
+-            this.destroy();
++            this.destroy(EntityRemoveEvent.Cause.DEATH); // CraftBukkit - add Bukkit remove cause
+         }
+ 
+         return true;

paper-server/nms-patches/net/minecraft/world/entity/projectile/EntitySmallFireball.patch

@@ -1,15 +1,18 @@
 --- a/net/minecraft/world/entity/projectile/EntitySmallFireball.java
 +++ b/net/minecraft/world/entity/projectile/EntitySmallFireball.java
-@@ -13,6 +13,8 @@
+@@ -13,6 +13,11 @@
  import net.minecraft.world.phys.MovingObjectPositionBlock;
  import net.minecraft.world.phys.MovingObjectPositionEntity;
  
-+import org.bukkit.event.entity.EntityCombustByEntityEvent; // CraftBukkit
++// CraftBukkit start
++import org.bukkit.event.entity.EntityCombustByEntityEvent;
++import org.bukkit.event.entity.EntityRemoveEvent;
++// CraftBukkit end
 +
  public class EntitySmallFireball extends EntityFireballFireball {
  
      public EntitySmallFireball(EntityTypes<? extends EntitySmallFireball> entitytypes, World world) {
-@@ -21,6 +23,11 @@
+@@ -21,6 +26,11 @@
  
      public EntitySmallFireball(World world, EntityLiving entityliving, double d0, double d1, double d2) {
          super(EntityTypes.SMALL_FIREBALL, entityliving, d0, d1, d2, world);
@@ -21,7 +24,7 @@
      }
  
      public EntitySmallFireball(World world, double d0, double d1, double d2, double d3, double d4, double d5) {
-@@ -35,7 +42,14 @@
+@@ -35,7 +45,14 @@
              Entity entity1 = this.getOwner();
              int i = entity.getRemainingFireTicks();
  
@@ -37,7 +40,7 @@
              if (!entity.hurt(this.damageSources().fireball(this, entity1), 5.0F)) {
                  entity.setRemainingFireTicks(i);
              } else if (entity1 instanceof EntityLiving) {
-@@ -51,10 +65,10 @@
+@@ -51,10 +68,10 @@
          if (!this.level().isClientSide) {
              Entity entity = this.getOwner();
  
@@ -50,3 +53,12 @@
                      this.level().setBlockAndUpdate(blockposition, BlockFireAbstract.getState(this.level(), blockposition));
                  }
              }
+@@ -66,7 +83,7 @@
+     protected void onHit(MovingObjectPosition movingobjectposition) {
+         super.onHit(movingobjectposition);
+         if (!this.level().isClientSide) {
+-            this.discard();
++            this.discard(EntityRemoveEvent.Cause.HIT); // CraftBukkit - add Bukkit remove cause
+         }
+ 
+     }

paper-server/nms-patches/net/minecraft/world/entity/projectile/EntitySnowball.patch

@@ -0,0 +1,22 @@
+--- a/net/minecraft/world/entity/projectile/EntitySnowball.java
++++ b/net/minecraft/world/entity/projectile/EntitySnowball.java
+@@ -14,6 +14,10 @@
+ import net.minecraft.world.phys.MovingObjectPosition;
+ import net.minecraft.world.phys.MovingObjectPositionEntity;
+ 
++// CraftBukkit start
++import org.bukkit.event.entity.EntityRemoveEvent;
++// CraftBukkit end
++
+ public class EntitySnowball extends EntityProjectileThrowable {
+ 
+     public EntitySnowball(EntityTypes<? extends EntitySnowball> entitytypes, World world) {
+@@ -65,7 +69,7 @@
+         super.onHit(movingobjectposition);
+         if (!this.level().isClientSide) {
+             this.level().broadcastEntityEvent(this, (byte) 3);
+-            this.discard();
++            this.discard(EntityRemoveEvent.Cause.HIT); // CraftBukkit - add Bukkit remove cause
+         }
+ 
+     }

paper-server/nms-patches/net/minecraft/world/entity/projectile/EntityThrownExpBottle.patch

@@ -1,6 +1,17 @@
 --- a/net/minecraft/world/entity/projectile/EntityThrownExpBottle.java
 +++ b/net/minecraft/world/entity/projectile/EntityThrownExpBottle.java
-@@ -39,9 +39,18 @@
+@@ -11,6 +11,10 @@
+ import net.minecraft.world.level.World;
+ import net.minecraft.world.phys.MovingObjectPosition;
+ 
++// CraftBukkit start
++import org.bukkit.event.entity.EntityRemoveEvent;
++// CraftBukkit end
++
+ public class EntityThrownExpBottle extends EntityProjectileThrowable {
+ 
+     public EntityThrownExpBottle(EntityTypes<? extends EntityThrownExpBottle> entitytypes, World world) {
+@@ -39,11 +43,20 @@
      protected void onHit(MovingObjectPosition movingobjectposition) {
          super.onHit(movingobjectposition);
          if (this.level() instanceof WorldServer) {
@@ -18,5 +29,8 @@
 +            // CraftBukkit end
 +
              EntityExperienceOrb.award((WorldServer) this.level(), this.position(), i);
-             this.discard();
+-            this.discard();
++            this.discard(EntityRemoveEvent.Cause.HIT); // CraftBukkit - add Bukkit remove cause
          }
+ 
+     }

paper-server/nms-patches/net/minecraft/world/entity/projectile/EntityThrownTrident.patch

@@ -1,6 +1,26 @@
 --- a/net/minecraft/world/entity/projectile/EntityThrownTrident.java
 +++ b/net/minecraft/world/entity/projectile/EntityThrownTrident.java
-@@ -153,7 +153,7 @@
+@@ -24,6 +24,10 @@
+ import net.minecraft.world.phys.MovingObjectPositionEntity;
+ import net.minecraft.world.phys.Vec3D;
+ 
++// CraftBukkit start
++import org.bukkit.event.entity.EntityRemoveEvent;
++// CraftBukkit end
++
+ public class EntityThrownTrident extends EntityArrow {
+ 
+     private static final DataWatcherObject<Byte> ID_LOYALTY = DataWatcher.defineId(EntityThrownTrident.class, DataWatcherRegistry.BYTE);
+@@ -64,7 +68,7 @@
+                     this.spawnAtLocation(this.getPickupItem(), 0.1F);
+                 }
+ 
+-                this.discard();
++                this.discard(EntityRemoveEvent.Cause.DROP); // CraftBukkit - add Bukkit remove cause
+             } else {
+                 this.setNoPhysics(true);
+                 Vec3D vec3d = entity.getEyePosition().subtract(this.position());
+@@ -153,7 +157,7 @@
                  if (entitylightning != null) {
                      entitylightning.moveTo(Vec3D.atBottomCenterOf(blockposition));
                      entitylightning.setCause(entity1 instanceof EntityPlayer ? (EntityPlayer) entity1 : null);

paper-server/nms-patches/net/minecraft/world/entity/projectile/EntityWitherSkull.patch

@@ -1,17 +1,18 @@
 --- a/net/minecraft/world/entity/projectile/EntityWitherSkull.java
 +++ b/net/minecraft/world/entity/projectile/EntityWitherSkull.java
-@@ -21,6 +21,10 @@
+@@ -21,6 +21,11 @@
  import net.minecraft.world.phys.MovingObjectPosition;
  import net.minecraft.world.phys.MovingObjectPositionEntity;
  
 +// CraftBukkit start
++import org.bukkit.event.entity.EntityRemoveEvent;
 +import org.bukkit.event.entity.ExplosionPrimeEvent;
 +// CraftBukkit end
 +
  public class EntityWitherSkull extends EntityFireball {
  
      private static final DataWatcherObject<Boolean> DATA_DANGEROUS = DataWatcher.defineId(EntityWitherSkull.class, DataWatcherRegistry.BOOLEAN);
-@@ -64,7 +68,7 @@
+@@ -64,7 +69,7 @@
                      if (entity.isAlive()) {
                          this.doEnchantDamageEffects(entityliving, entity);
                      } else {
@@ -20,7 +21,7 @@
                      }
                  }
              } else {
-@@ -82,7 +86,7 @@
+@@ -82,7 +87,7 @@
                  }
  
                  if (b0 > 0) {
@@ -29,11 +30,12 @@
                  }
              }
  
-@@ -93,7 +97,15 @@
+@@ -93,8 +98,16 @@
      protected void onHit(MovingObjectPosition movingobjectposition) {
          super.onHit(movingobjectposition);
          if (!this.level().isClientSide) {
 -            this.level().explode(this, this.getX(), this.getY(), this.getZ(), 1.0F, false, World.a.MOB);
+-            this.discard();
 +            // CraftBukkit start
 +            // this.level().explode(this, this.getX(), this.getY(), this.getZ(), 1.0F, false, World.a.MOB);
 +            ExplosionPrimeEvent event = new ExplosionPrimeEvent(this.getBukkitEntity(), 1.0F, false);
@@ -43,6 +45,7 @@
 +                this.level().explode(this, this.getX(), this.getY(), this.getZ(), event.getRadius(), event.getFire(), World.a.MOB);
 +            }
 +            // CraftBukkit end
-             this.discard();
++            this.discard(EntityRemoveEvent.Cause.HIT); // CraftBukkit - add Bukkit remove cause
          }
  
+     }

paper-server/nms-patches/net/minecraft/world/entity/projectile/WindCharge.patch

@@ -1,6 +1,17 @@
 --- a/net/minecraft/world/entity/projectile/WindCharge.java
 +++ b/net/minecraft/world/entity/projectile/WindCharge.java
-@@ -81,7 +81,7 @@
+@@ -22,6 +22,10 @@
+ import net.minecraft.world.phys.MovingObjectPositionBlock;
+ import net.minecraft.world.phys.MovingObjectPositionEntity;
+ 
++// CraftBukkit start
++import org.bukkit.event.entity.EntityRemoveEvent;
++// CraftBukkit end
++
+ public class WindCharge extends EntityFireball implements ItemSupplier {
+ 
+     public static final WindCharge.a EXPLOSION_DAMAGE_CALCULATOR = new WindCharge.a();
+@@ -81,7 +85,7 @@
          }
      }
  
@@ -9,3 +20,20 @@
          this.level().explode(this, (DamageSource) null, WindCharge.EXPLOSION_DAMAGE_CALCULATOR, this.getX(), this.getY(), this.getZ(), (float) (3.0D + this.random.nextDouble()), false, World.a.BLOW, Particles.GUST, Particles.GUST_EMITTER, SoundEffects.WIND_BURST);
      }
  
+@@ -89,14 +93,14 @@
+     protected void onHitBlock(MovingObjectPositionBlock movingobjectpositionblock) {
+         super.onHitBlock(movingobjectpositionblock);
+         this.explode();
+-        this.discard();
++        this.discard(EntityRemoveEvent.Cause.HIT); // CraftBukkit - add Bukkit remove cause
+     }
+ 
+     @Override
+     protected void onHit(MovingObjectPosition movingobjectposition) {
+         super.onHit(movingobjectposition);
+         if (!this.level().isClientSide) {
+-            this.discard();
++            this.discard(EntityRemoveEvent.Cause.HIT); // CraftBukkit - add Bukkit remove cause
+         }
+ 
+     }

paper-server/nms-patches/net/minecraft/world/entity/raid/EntityRaider.patch

@@ -1,6 +1,17 @@
 --- a/net/minecraft/world/entity/raid/EntityRaider.java
 +++ b/net/minecraft/world/entity/raid/EntityRaider.java
-@@ -165,7 +165,7 @@
+@@ -43,6 +43,10 @@
+ import net.minecraft.world.level.WorldAccess;
+ import net.minecraft.world.phys.Vec3D;
+ 
++// CraftBukkit start
++import org.bukkit.event.entity.EntityRemoveEvent;
++// CraftBukkit end
++
+ public abstract class EntityRaider extends EntityMonsterPatrolling {
+ 
+     protected static final DataWatcherObject<Boolean> IS_CELEBRATING = DataWatcher.defineId(EntityRaider.class, DataWatcherRegistry.BOOLEAN);
+@@ -165,7 +169,7 @@
                      MobEffect mobeffect1 = new MobEffect(MobEffects.BAD_OMEN, 120000, i, false, false, true);
  
                      if (!this.level().getGameRules().getBoolean(GameRules.RULE_DISABLE_RAIDS)) {
@@ -9,7 +20,16 @@
                      }
                  }
              }
-@@ -305,7 +305,7 @@
+@@ -256,7 +260,7 @@
+             this.onItemPickup(entityitem);
+             this.setItemSlot(enumitemslot, itemstack);
+             this.take(entityitem, itemstack.getCount());
+-            entityitem.discard();
++            entityitem.discard(EntityRemoveEvent.Cause.PICKUP); // CraftBukkit - add Bukkit remove cause
+             this.getCurrentRaid().setLeader(this.getWave(), this);
+             this.setPatrolLeader(true);
+         } else {
+@@ -305,7 +309,7 @@
  
          private final T mob;
  
@@ -18,7 +38,7 @@
              this.mob = entityraider;
              this.setFlags(EnumSet.of(PathfinderGoal.Type.MOVE));
          }
-@@ -521,7 +521,7 @@
+@@ -521,7 +525,7 @@
              while (iterator.hasNext()) {
                  EntityRaider entityraider = (EntityRaider) iterator.next();
  
@@ -27,7 +47,7 @@
              }
  
          }
-@@ -538,7 +538,7 @@
+@@ -538,7 +542,7 @@
                  while (iterator.hasNext()) {
                      EntityRaider entityraider = (EntityRaider) iterator.next();
  

paper-server/nms-patches/net/minecraft/world/entity/vehicle/ChestBoat.patch

@@ -1,20 +1,42 @@
 --- a/net/minecraft/world/entity/vehicle/ChestBoat.java
 +++ b/net/minecraft/world/entity/vehicle/ChestBoat.java
-@@ -23,6 +23,13 @@
- import net.minecraft.world.item.Items;
+@@ -24,6 +24,15 @@
  import net.minecraft.world.level.World;
  import net.minecraft.world.level.gameevent.GameEvent;
+ 
 +// CraftBukkit start
 +import java.util.List;
 +import org.bukkit.Location;
 +import org.bukkit.craftbukkit.entity.CraftHumanEntity;
 +import org.bukkit.entity.HumanEntity;
++import org.bukkit.event.entity.EntityRemoveEvent;
 +import org.bukkit.inventory.InventoryHolder;
 +// CraftBukkit end
- 
++
  public class ChestBoat extends EntityBoat implements HasCustomInventoryScreen, ContainerEntity {
  
-@@ -238,4 +245,51 @@
+     private static final int CONTAINER_SIZE = 27;
+@@ -76,11 +85,18 @@
+ 
+     @Override
+     public void remove(Entity.RemovalReason entity_removalreason) {
++        // CraftBukkit start - add Bukkit remove cause
++        this.remove(entity_removalreason, null);
++    }
++
++    @Override
++    public void remove(Entity.RemovalReason entity_removalreason, EntityRemoveEvent.Cause cause) {
++        // CraftBukkit end
+         if (!this.level().isClientSide && entity_removalreason.shouldDestroy()) {
+             InventoryUtils.dropContents(this.level(), (Entity) this, (IInventory) this);
+         }
+ 
+-        super.remove(entity_removalreason);
++        super.remove(entity_removalreason, cause); // CraftBukkit - add Bukkit remove cause
+     }
+ 
+     @Override
+@@ -238,4 +254,51 @@
      public void stopOpen(EntityHuman entityhuman) {
          this.level().gameEvent(GameEvent.CONTAINER_CLOSE, this.position(), GameEvent.a.of((Entity) entityhuman));
      }

paper-server/nms-patches/net/minecraft/world/entity/vehicle/EntityMinecartContainer.patch

@@ -1,6 +1,6 @@
 --- a/net/minecraft/world/entity/vehicle/EntityMinecartContainer.java
 +++ b/net/minecraft/world/entity/vehicle/EntityMinecartContainer.java
-@@ -18,6 +18,14 @@
+@@ -18,6 +18,15 @@
  import net.minecraft.world.item.ItemStack;
  import net.minecraft.world.level.World;
  
@@ -9,13 +9,14 @@
 +import org.bukkit.Location;
 +import org.bukkit.craftbukkit.entity.CraftHumanEntity;
 +import org.bukkit.entity.HumanEntity;
++import org.bukkit.event.entity.EntityRemoveEvent;
 +import org.bukkit.inventory.InventoryHolder;
 +// CraftBukkit end
 +
  public abstract class EntityMinecartContainer extends EntityMinecartAbstract implements ContainerEntity {
  
      private NonNullList<ItemStack> itemStacks;
-@@ -25,14 +33,55 @@
+@@ -25,14 +34,55 @@
      public MinecraftKey lootTable;
      public long lootTableSeed;
  
@@ -72,4 +73,24 @@
 +        this.itemStacks = NonNullList.withSize(this.getContainerSize(), ItemStack.EMPTY); // CraftBukkit - SPIGOT-3513
      }
  
+     @Override
+@@ -76,11 +126,18 @@
+ 
+     @Override
+     public void remove(Entity.RemovalReason entity_removalreason) {
++        // CraftBukkit start - add Bukkit remove cause
++        this.remove(entity_removalreason, null);
++    }
++
++    @Override
++    public void remove(Entity.RemovalReason entity_removalreason, EntityRemoveEvent.Cause cause) {
++        // CraftBukkit end
+         if (!this.level().isClientSide && entity_removalreason.shouldDestroy()) {
+             InventoryUtils.dropContents(this.level(), (Entity) this, (IInventory) this);
+         }
+ 
+-        super.remove(entity_removalreason);
++        super.remove(entity_removalreason, cause); // CraftBukkit - add Bukkit remove cause
+     }
+ 
      @Override

paper-server/nms-patches/net/minecraft/world/entity/vehicle/EntityMinecartTNT.patch

@@ -1,21 +1,23 @@
 --- a/net/minecraft/world/entity/vehicle/EntityMinecartTNT.java
 +++ b/net/minecraft/world/entity/vehicle/EntityMinecartTNT.java
-@@ -23,6 +23,10 @@
+@@ -23,6 +23,11 @@
  import net.minecraft.world.level.block.state.IBlockData;
  import net.minecraft.world.level.material.Fluid;
  
 +// CraftBukkit start
++import org.bukkit.event.entity.EntityRemoveEvent;
 +import org.bukkit.event.entity.ExplosionPrimeEvent;
 +// CraftBukkit end
 +
  public class EntityMinecartTNT extends EntityMinecartAbstract {
  
      private static final byte EVENT_PRIME = 10;
-@@ -115,7 +119,15 @@
+@@ -115,8 +120,16 @@
                  d1 = 5.0D;
              }
  
 -            this.level().explode(this, damagesource, (ExplosionDamageCalculator) null, this.getX(), this.getY(), this.getZ(), (float) (4.0D + this.random.nextDouble() * 1.5D * d1), false, World.a.TNT);
+-            this.discard();
 +            // CraftBukkit start
 +            ExplosionPrimeEvent event = new ExplosionPrimeEvent(this.getBukkitEntity(), (float) (4.0D + this.random.nextDouble() * 1.5D * d1), false);
 +            this.level().getCraftServer().getPluginManager().callEvent(event);
@@ -25,6 +27,7 @@
 +            }
 +            this.level().explode(this, damagesource, (ExplosionDamageCalculator) null, this.getX(), this.getY(), this.getZ(), event.getRadius(), event.getFire(), World.a.TNT);
 +            // CraftBukkit end
-             this.discard();
++            this.discard(EntityRemoveEvent.Cause.EXPLODE); // CraftBukkit - add Bukkit remove cause
          }
  
+     }

paper-server/nms-patches/net/minecraft/world/entity/vehicle/VehicleEntity.patch

@@ -1,11 +1,12 @@
 --- a/net/minecraft/world/entity/vehicle/VehicleEntity.java
 +++ b/net/minecraft/world/entity/vehicle/VehicleEntity.java
-@@ -13,6 +13,12 @@
+@@ -13,6 +13,13 @@
  import net.minecraft.world.level.World;
  import net.minecraft.world.level.gameevent.GameEvent;
  
 +// CraftBukkit start
 +import org.bukkit.entity.Vehicle;
++import org.bukkit.event.entity.EntityRemoveEvent;
 +import org.bukkit.event.vehicle.VehicleDamageEvent;
 +import org.bukkit.event.vehicle.VehicleDestroyEvent;
 +// CraftBukkit end
@@ -13,7 +14,7 @@
  public abstract class VehicleEntity extends Entity {
  
      protected static final DataWatcherObject<Integer> DATA_ID_HURT = DataWatcher.defineId(VehicleEntity.class, DataWatcherRegistry.INT);
-@@ -29,6 +35,18 @@
+@@ -29,6 +36,18 @@
              if (this.isInvulnerableTo(damagesource)) {
                  return false;
              } else {
@@ -32,10 +33,11 @@
                  this.setHurtDir(-this.getHurtDir());
                  this.setHurtTime(10);
                  this.markHurt();
-@@ -38,9 +56,27 @@
+@@ -38,9 +57,27 @@
  
                  if ((flag || this.getDamage() <= 40.0F) && !this.shouldSourceDestroy(damagesource)) {
                      if (flag) {
+-                        this.discard();
 +                        // CraftBukkit start
 +                        VehicleDestroyEvent destroyEvent = new VehicleDestroyEvent(vehicle, attacker);
 +                        this.level().getCraftServer().getPluginManager().callEvent(destroyEvent);
@@ -45,7 +47,7 @@
 +                            return true;
 +                        }
 +                        // CraftBukkit end
-                         this.discard();
++                        this.discard(EntityRemoveEvent.Cause.DEATH); // CraftBukkit - add Bukkit remove cause
                      }
                  } else {
 +                    // CraftBukkit start

paper-server/nms-patches/net/minecraft/world/item/ItemLeash.patch

@@ -41,7 +41,7 @@
 +                    world.getCraftServer().getPluginManager().callEvent(event);
 +
 +                    if (event.isCancelled()) {
-+                        entityleash.discard();
++                        entityleash.discard(null); // CraftBukkit - add Bukkit remove cause
 +                        return EnumInteractionResult.PASS;
 +                    }
 +                    // CraftBukkit end

paper-server/nms-patches/net/minecraft/world/level/block/entity/TileEntityBeehive.patch

@@ -1,6 +1,17 @@
 --- a/net/minecraft/world/level/block/entity/TileEntityBeehive.java
 +++ b/net/minecraft/world/level/block/entity/TileEntityBeehive.java
-@@ -43,6 +43,7 @@
+@@ -27,6 +27,10 @@
+ import net.minecraft.world.level.block.state.IBlockData;
+ import net.minecraft.world.level.gameevent.GameEvent;
+ 
++// CraftBukkit start
++import org.bukkit.event.entity.EntityRemoveEvent;
++// CraftBukkit end
++
+ public class TileEntityBeehive extends TileEntity {
+ 
+     public static final String TAG_FLOWER_POS = "FlowerPos";
+@@ -43,6 +47,7 @@
      private final List<TileEntityBeehive.HiveBee> stored = Lists.newArrayList();
      @Nullable
      public BlockPosition savedFlowerPos;
@@ -8,7 +19,7 @@
  
      public TileEntityBeehive(BlockPosition blockposition, IBlockData iblockdata) {
          super(TileEntityTypes.BEEHIVE, blockposition, iblockdata);
-@@ -82,7 +83,7 @@
+@@ -82,7 +87,7 @@
      }
  
      public boolean isFull() {
@@ -17,7 +28,7 @@
      }
  
      public void emptyAllLivingFromHive(@Nullable EntityHuman entityhuman, IBlockData iblockdata, TileEntityBeehive.ReleaseStatus tileentitybeehive_releasestatus) {
-@@ -99,7 +100,7 @@
+@@ -99,7 +104,7 @@
  
                      if (entityhuman.position().distanceToSqr(entity.position()) <= 16.0D) {
                          if (!this.isSedated()) {
@@ -26,7 +37,7 @@
                          } else {
                              entitybee.setStayOutOfHiveCountdown(400);
                          }
-@@ -111,10 +112,16 @@
+@@ -111,10 +116,16 @@
      }
  
      private List<Entity> releaseAllOccupants(IBlockData iblockdata, TileEntityBeehive.ReleaseStatus tileentitybeehive_releasestatus) {
@@ -44,7 +55,7 @@
          });
          if (!list.isEmpty()) {
              super.setChanged();
-@@ -142,7 +149,19 @@
+@@ -142,7 +153,19 @@
      }
  
      public void addOccupantWithPresetTicks(Entity entity, boolean flag, int i) {
@@ -65,7 +76,16 @@
              entity.stopRiding();
              entity.ejectPassengers();
              NBTTagCompound nbttagcompound = new NBTTagCompound();
-@@ -174,7 +193,13 @@
+@@ -164,7 +187,7 @@
+                 this.level.gameEvent(GameEvent.BLOCK_CHANGE, blockposition, GameEvent.a.of(entity, this.getBlockState()));
+             }
+ 
+-            entity.discard();
++            entity.discard(EntityRemoveEvent.Cause.ENTER_BLOCK); // CraftBukkit - add Bukkit remove cause
+             super.setChanged();
+         }
+     }
+@@ -174,7 +197,13 @@
      }
  
      private static boolean releaseOccupant(World world, BlockPosition blockposition, IBlockData iblockdata, TileEntityBeehive.HiveBee tileentitybeehive_hivebee, @Nullable List<Entity> list, TileEntityBeehive.ReleaseStatus tileentitybeehive_releasestatus, @Nullable BlockPosition blockposition1) {
@@ -80,7 +100,7 @@
              return false;
          } else {
              NBTTagCompound nbttagcompound = tileentitybeehive_hivebee.entityData.copy();
-@@ -197,6 +222,18 @@
+@@ -197,6 +226,18 @@
                      if (!entity.getType().is(TagsEntity.BEEHIVE_INHABITORS)) {
                          return false;
                      } else {
@@ -99,7 +119,7 @@
                          if (entity instanceof EntityBee) {
                              EntityBee entitybee = (EntityBee) entity;
  
-@@ -228,6 +265,7 @@
+@@ -228,6 +269,7 @@
                                  list.add(entitybee);
                              }
  
@@ -107,7 +127,7 @@
                              float f = entity.getBbWidth();
                              double d0 = flag ? 0.0D : 0.55D + (double) (f / 2.0F);
                              double d1 = (double) blockposition.getX() + 0.5D + d0 * (double) enumdirection.getStepX();
-@@ -235,11 +273,12 @@
+@@ -235,11 +277,12 @@
                              double d3 = (double) blockposition.getZ() + 0.5D + d0 * (double) enumdirection.getStepZ();
  
                              entity.moveTo(d1, d2, d3, entity.getYRot(), entity.getXRot());
@@ -121,7 +141,7 @@
                      }
                  } else {
                      return false;
-@@ -288,6 +327,10 @@
+@@ -288,6 +331,10 @@
                  if (releaseOccupant(world, blockposition, iblockdata, tileentitybeehive_hivebee, (List) null, tileentitybeehive_releasestatus, blockposition1)) {
                      flag = true;
                      iterator.remove();
@@ -132,7 +152,7 @@
                  }
              }
          }
-@@ -329,6 +372,11 @@
+@@ -329,6 +376,11 @@
              this.savedFlowerPos = GameProfileSerializer.readBlockPos(nbttagcompound.getCompound("FlowerPos"));
          }
  
@@ -144,7 +164,7 @@
      }
  
      @Override
-@@ -338,6 +386,7 @@
+@@ -338,6 +390,7 @@
          if (this.hasSavedFlowerPos()) {
              nbttagcompound.put("FlowerPos", GameProfileSerializer.writeBlockPos(this.savedFlowerPos));
          }

paper-server/nms-patches/net/minecraft/world/level/block/entity/TileEntityEndGateway.patch

@@ -1,6 +1,6 @@
 --- a/net/minecraft/world/level/block/entity/TileEntityEndGateway.java
 +++ b/net/minecraft/world/level/block/entity/TileEntityEndGateway.java
-@@ -33,6 +33,14 @@
+@@ -33,6 +33,15 @@
  import net.minecraft.world.phys.Vec3D;
  import org.slf4j.Logger;
  
@@ -9,13 +9,14 @@
 +import org.bukkit.Bukkit;
 +import org.bukkit.craftbukkit.entity.CraftPlayer;
 +import org.bukkit.craftbukkit.util.CraftLocation;
++import org.bukkit.event.entity.EntityRemoveEvent;
 +import org.bukkit.event.player.PlayerTeleportEvent;
 +// CraftBukkit end
 +
  public class TileEntityEndGateway extends TileEntityEnderPortal {
  
      private static final Logger LOGGER = LogUtils.getLogger();
-@@ -169,7 +177,7 @@
+@@ -169,7 +178,7 @@
              tileentityendgateway.teleportCooldown = 100;
              BlockPosition blockposition1;
  
@@ -24,7 +25,16 @@
                  blockposition1 = findOrCreateValidTeleportPos(worldserver, blockposition);
                  blockposition1 = blockposition1.above(10);
                  TileEntityEndGateway.LOGGER.debug("Creating portal at {}", blockposition1);
-@@ -198,8 +206,34 @@
+@@ -190,7 +199,7 @@
+ 
+                     if (entity2 != null) {
+                         entity1 = entity2;
+-                        entity.discard();
++                        entity.discard(EntityRemoveEvent.Cause.HIT); // CraftBukkit - add Bukkit remove cause
+                     } else {
+                         entity1 = entity;
+                     }
+@@ -198,8 +207,34 @@
                      entity1 = entity.getRootVehicle();
                  }
  

paper-server/nms-patches/net/minecraft/world/level/block/entity/TileEntityHopper.patch

@@ -1,6 +1,6 @@
 --- a/net/minecraft/world/level/block/entity/TileEntityHopper.java
 +++ b/net/minecraft/world/level/block/entity/TileEntityHopper.java
-@@ -32,6 +32,21 @@
+@@ -32,6 +32,22 @@
  import net.minecraft.world.phys.shapes.OperatorBoolean;
  import net.minecraft.world.phys.shapes.VoxelShapes;
  
@@ -13,6 +13,7 @@
 +import org.bukkit.craftbukkit.inventory.CraftInventory;
 +import org.bukkit.craftbukkit.inventory.CraftItemStack;
 +import org.bukkit.entity.HumanEntity;
++import org.bukkit.event.entity.EntityRemoveEvent;
 +import org.bukkit.event.inventory.HopperInventorySearchEvent;
 +import org.bukkit.event.inventory.InventoryMoveItemEvent;
 +import org.bukkit.event.inventory.InventoryPickupItemEvent;
@@ -22,7 +23,7 @@
  public class TileEntityHopper extends TileEntityLootable implements IHopper {
  
      public static final int MOVE_ITEM_SPEED = 8;
-@@ -40,6 +55,36 @@
+@@ -40,6 +56,36 @@
      private int cooldownTime;
      private long tickedGameTime;
  
@@ -59,7 +60,7 @@
      public TileEntityHopper(BlockPosition blockposition, IBlockData iblockdata) {
          super(TileEntityTypes.HOPPER, blockposition, iblockdata);
          this.items = NonNullList.withSize(5, ItemStack.EMPTY);
-@@ -113,7 +158,7 @@
+@@ -113,7 +159,7 @@
                  boolean flag = false;
  
                  if (!tileentityhopper.isEmpty()) {
@@ -68,7 +69,7 @@
                  }
  
                  if (!tileentityhopper.inventoryFull()) {
-@@ -147,7 +192,7 @@
+@@ -147,7 +193,7 @@
          return false;
      }
  
@@ -77,7 +78,7 @@
          IInventory iinventory1 = getAttachedContainer(world, blockposition, iblockdata);
  
          if (iinventory1 == null) {
-@@ -161,7 +206,30 @@
+@@ -161,7 +207,30 @@
                  for (int i = 0; i < iinventory.getContainerSize(); ++i) {
                      if (!iinventory.getItem(i).isEmpty()) {
                          ItemStack itemstack = iinventory.getItem(i).copy();
@@ -109,7 +110,7 @@
  
                          if (itemstack1.isEmpty()) {
                              iinventory1.setChanged();
-@@ -226,7 +294,34 @@
+@@ -226,7 +295,34 @@
  
          if (!itemstack.isEmpty() && canTakeItemFromContainer(ihopper, iinventory, itemstack, i, enumdirection)) {
              ItemStack itemstack1 = itemstack.copy();
@@ -145,7 +146,7 @@
  
              if (itemstack2.isEmpty()) {
                  iinventory.setChanged();
-@@ -241,6 +336,13 @@
+@@ -241,13 +337,20 @@
  
      public static boolean addItem(IInventory iinventory, EntityItem entityitem) {
          boolean flag = false;
@@ -159,7 +160,15 @@
          ItemStack itemstack = entityitem.getItem().copy();
          ItemStack itemstack1 = addItem((IInventory) null, iinventory, itemstack, (EnumDirection) null);
  
-@@ -367,16 +469,40 @@
+         if (itemstack1.isEmpty()) {
+             flag = true;
+             entityitem.setItem(ItemStack.EMPTY);
+-            entityitem.discard();
++            entityitem.discard(EntityRemoveEvent.Cause.PICKUP); // CraftBukkit - add Bukkit remove cause
+         } else {
+             entityitem.setItem(itemstack1);
+         }
+@@ -367,16 +470,40 @@
          return itemstack;
      }
  

paper-server/nms-patches/net/minecraft/world/level/dimension/end/EnderDragonBattle.patch

@@ -26,6 +26,15 @@
          this.gateways.addAll((Collection) enderdragonbattle_a.gateways.orElseGet(() -> {
              ObjectArrayList<Integer> objectarraylist = new ObjectArrayList(ContiguousSet.create(Range.closedOpen(0, 20), DiscreteDomain.integers()));
  
+@@ -207,7 +207,7 @@
+             this.dragonKilled = false;
+             if (!flag) {
+                 EnderDragonBattle.LOGGER.info("But we didn't have a portal, let's remove it.");
+-                entityenderdragon.discard();
++                entityenderdragon.discard(null); // CraftBukkit - add Bukkit remove cause
+                 this.dragonUUID = null;
+             }
+         }
 @@ -510,7 +510,7 @@
          return this.previouslyKilled;
      }

paper-server/nms-patches/net/minecraft/world/level/dimension/end/EnumDragonRespawn.patch

@@ -0,0 +1,58 @@
+--- a/net/minecraft/world/level/dimension/end/EnumDragonRespawn.java
++++ b/net/minecraft/world/level/dimension/end/EnumDragonRespawn.java
+@@ -13,6 +13,10 @@
+ import net.minecraft.world.level.levelgen.feature.WorldGenerator;
+ import net.minecraft.world.level.levelgen.feature.configurations.WorldGenFeatureEndSpikeConfiguration;
+ 
++// CraftBukkit start
++import org.bukkit.event.entity.EntityRemoveEvent;
++// CraftBukkit end
++
+ public enum EnumDragonRespawn {
+ 
+     START {
+@@ -27,7 +31,7 @@
+                 entityendercrystal.setBeamTarget(blockposition1);
+             }
+ 
+-            enderdragonbattle.setRespawnStage(null.PREPARING_TO_SUMMON_PILLARS);
++            enderdragonbattle.setRespawnStage(PREPARING_TO_SUMMON_PILLARS); // CraftBukkit - decompile error
+         }
+     },
+     PREPARING_TO_SUMMON_PILLARS {
+@@ -38,7 +42,7 @@
+                     worldserver.levelEvent(3001, new BlockPosition(0, 128, 0), 0);
+                 }
+             } else {
+-                enderdragonbattle.setRespawnStage(null.SUMMONING_PILLARS);
++                enderdragonbattle.setRespawnStage(SUMMONING_PILLARS); // CraftBukkit - decompile error
+             }
+ 
+         }
+@@ -81,7 +85,7 @@
+                         WorldGenerator.END_SPIKE.place(worldgenfeatureendspikeconfiguration, worldserver, worldserver.getChunkSource().getGenerator(), RandomSource.create(), new BlockPosition(worldgenender_spike.getCenterX(), 45, worldgenender_spike.getCenterZ()));
+                     }
+                 } else if (flag1) {
+-                    enderdragonbattle.setRespawnStage(null.SUMMONING_DRAGON);
++                    enderdragonbattle.setRespawnStage(SUMMONING_DRAGON); // CraftBukkit - decompile error
+                 }
+             }
+ 
+@@ -94,7 +98,7 @@
+             EntityEnderCrystal entityendercrystal;
+ 
+             if (i >= 100) {
+-                enderdragonbattle.setRespawnStage(null.END);
++                enderdragonbattle.setRespawnStage(END); // CraftBukkit - decompile error
+                 enderdragonbattle.resetSpikeCrystals();
+                 iterator = list.iterator();
+ 
+@@ -102,7 +106,7 @@
+                     entityendercrystal = (EntityEnderCrystal) iterator.next();
+                     entityendercrystal.setBeamTarget((BlockPosition) null);
+                     worldserver.explode(entityendercrystal, entityendercrystal.getX(), entityendercrystal.getY(), entityendercrystal.getZ(), 6.0F, World.a.NONE);
+-                    entityendercrystal.discard();
++                    entityendercrystal.discard(EntityRemoveEvent.Cause.EXPLODE); // CraftBukkit - add Bukkit remove cause
+                 }
+             } else if (i >= 80) {
+                 worldserver.levelEvent(3001, new BlockPosition(0, 128, 0), 0);

paper-server/nms-patches/net/minecraft/world/level/entity/EntityAccess.patch

@@ -0,0 +1,26 @@
+--- a/net/minecraft/world/level/entity/EntityAccess.java
++++ b/net/minecraft/world/level/entity/EntityAccess.java
+@@ -6,6 +6,10 @@
+ import net.minecraft.world.entity.Entity;
+ import net.minecraft.world.phys.AxisAlignedBB;
+ 
++// CraftBukkit start
++import org.bukkit.event.entity.EntityRemoveEvent;
++// CraftBukkit end
++
+ public interface EntityAccess {
+ 
+     int getId();
+@@ -24,6 +28,12 @@
+ 
+     void setRemoved(Entity.RemovalReason entity_removalreason);
+ 
++    // CraftBukkit start - add Bukkit remove cause
++    default void setRemoved(Entity.RemovalReason entity_removalreason, EntityRemoveEvent.Cause cause) {
++        setRemoved(entity_removalreason);
++    }
++    // CraftBukkit end
++
+     boolean shouldBeSaved();
+ 
+     boolean isAlwaysTicking();

paper-server/nms-patches/net/minecraft/world/level/entity/PersistentEntitySectionManager.patch

@@ -1,18 +1,19 @@
 --- a/net/minecraft/world/level/entity/PersistentEntitySectionManager.java
 +++ b/net/minecraft/world/level/entity/PersistentEntitySectionManager.java
-@@ -32,6 +32,11 @@
+@@ -32,6 +32,12 @@
  import net.minecraft.world.level.ChunkCoordIntPair;
  import org.slf4j.Logger;
  
 +// CraftBukkit start
 +import net.minecraft.world.level.chunk.storage.EntityStorage;
 +import org.bukkit.craftbukkit.event.CraftEventFactory;
++import org.bukkit.event.entity.EntityRemoveEvent;
 +// CraftBukkit end
 +
  public class PersistentEntitySectionManager<T extends EntityAccess> implements AutoCloseable {
  
      static final Logger LOGGER = LogUtils.getLogger();
-@@ -55,6 +60,16 @@
+@@ -55,6 +61,16 @@
          this.entityGetter = new LevelEntityGetterAdapter<>(this.visibleEntityStorage, this.sectionStorage);
      }
  
@@ -29,7 +30,7 @@
      void removeSectionIfEmpty(long i, EntitySection<T> entitysection) {
          if (entitysection.isEmpty()) {
              this.sectionStorage.remove(i);
-@@ -196,6 +211,12 @@
+@@ -196,6 +212,12 @@
      }
  
      private boolean storeChunkSections(long i, Consumer<T> consumer) {
@@ -42,7 +43,7 @@
          PersistentEntitySectionManager.b persistententitysectionmanager_b = (PersistentEntitySectionManager.b) this.chunkLoadStatuses.get(i);
  
          if (persistententitysectionmanager_b == PersistentEntitySectionManager.b.PENDING) {
-@@ -207,6 +228,7 @@
+@@ -207,6 +229,7 @@
  
              if (list.isEmpty()) {
                  if (persistententitysectionmanager_b == PersistentEntitySectionManager.b.LOADED) {
@@ -50,7 +51,7 @@
                      this.permanentStorage.storeEntities(new ChunkEntities<>(new ChunkCoordIntPair(i), ImmutableList.of()));
                  }
  
-@@ -215,6 +237,7 @@
+@@ -215,6 +238,7 @@
                  this.requestChunkLoad(i);
                  return false;
              } else {
@@ -58,7 +59,7 @@
                  this.permanentStorage.storeEntities(new ChunkEntities<>(new ChunkCoordIntPair(i), list));
                  list.forEach(consumer);
                  return true;
-@@ -238,7 +261,7 @@
+@@ -238,7 +262,7 @@
      private boolean processChunkUnload(long i) {
          boolean flag = this.storeChunkSections(i, (entityaccess) -> {
              entityaccess.getPassengersAndSelf().forEach(this::unloadEntity);
@@ -67,7 +68,13 @@
  
          if (!flag) {
              return false;
-@@ -254,19 +277,23 @@
+@@ -249,24 +273,28 @@
+     }
+ 
+     private void unloadEntity(EntityAccess entityaccess) {
+-        entityaccess.setRemoved(Entity.RemovalReason.UNLOADED_TO_CHUNK);
++        entityaccess.setRemoved(Entity.RemovalReason.UNLOADED_TO_CHUNK, EntityRemoveEvent.Cause.UNLOAD); // CraftBukkit - add Bukkit remove cause
+         entityaccess.setLevelCallback(EntityInLevelCallback.NULL);
      }
  
      private void processUnloads() {
@@ -93,7 +100,7 @@
          }
  
      }
-@@ -292,7 +319,7 @@
+@@ -292,7 +320,7 @@
      }
  
      public void autoSave() {
@@ -102,7 +109,7 @@
              boolean flag = this.chunkVisibility.get(i) == Visibility.HIDDEN;
  
              if (flag) {
-@@ -311,7 +338,7 @@
+@@ -311,7 +339,7 @@
          while (!longset.isEmpty()) {
              this.permanentStorage.flush(false);
              this.processPendingLoads();
@@ -111,7 +118,7 @@
                  boolean flag = this.chunkVisibility.get(i) == Visibility.HIDDEN;
  
                  return flag ? this.processChunkUnload(i) : this.storeChunkSections(i, (entityaccess) -> {
-@@ -323,7 +350,15 @@
+@@ -323,7 +351,15 @@
      }
  
      public void close() throws IOException {
@@ -128,7 +135,7 @@
          this.permanentStorage.close();
      }
  
-@@ -350,7 +385,7 @@
+@@ -350,7 +386,7 @@
      public void dumpSections(Writer writer) throws IOException {
          CSVWriter csvwriter = CSVWriter.builder().addColumn("x").addColumn("y").addColumn("z").addColumn("visibility").addColumn("load_status").addColumn("entity_count").build(writer);
  
@@ -137,7 +144,7 @@
              PersistentEntitySectionManager.b persistententitysectionmanager_b = (PersistentEntitySectionManager.b) this.chunkLoadStatuses.get(i);
  
              this.sectionStorage.getExistingSectionPositionsInChunk(i).forEach((j) -> {
-@@ -394,7 +429,7 @@
+@@ -394,7 +430,7 @@
          private EntitySection<T> currentSection;
  
          a(EntityAccess entityaccess, long i, EntitySection entitysection) {

paper-server/nms-patches/net/minecraft/world/level/levelgen/structure/structures/MineshaftPieces.patch

@@ -4,7 +4,7 @@
  import net.minecraft.world.level.storage.loot.LootTables;
  import org.slf4j.Logger;
  
-+// CraftBukkit start - imports
++// CraftBukkit start
 +import net.minecraft.nbt.NBTBase;
 +// CraftBukkit end
 +

paper-server/pom.xml

@@ -281,6 +281,12 @@
             <version>5.5.0</version>
             <scope>test</scope>
         </dependency>
+        <dependency>
+            <groupId>org.ow2.asm</groupId>
+            <artifactId>asm-tree</artifactId>
+            <version>9.5</version>
+            <scope>test</scope>
+        </dependency>
     </dependencies>
 
     <!-- This builds a completely 'ready to start' jar with all dependencies inside -->

paper-server/src/main/java/org/bukkit/craftbukkit/entity/CraftEntity.java

@@ -45,6 +45,7 @@ import org.bukkit.entity.Player;
 import org.bukkit.entity.Pose;
 import org.bukkit.entity.SpawnCategory;
 import org.bukkit.event.entity.EntityDamageEvent;
+import org.bukkit.event.entity.EntityRemoveEvent;
 import org.bukkit.event.player.PlayerTeleportEvent.TeleportCause;
 import org.bukkit.metadata.MetadataValue;
 import org.bukkit.permissions.PermissibleBase;
@@ -291,7 +292,7 @@ public abstract class CraftEntity implements org.bukkit.entity.Entity {
     @Override
     public void remove() {
         entity.pluginRemoved = true;
-        entity.discard();
+        entity.discard(getHandle().generation ? null : EntityRemoveEvent.Cause.PLUGIN);
     }
 
     @Override

paper-server/src/main/java/org/bukkit/craftbukkit/entity/CraftLivingEntity.java

@@ -118,7 +118,7 @@ public class CraftLivingEntity extends CraftEntity implements LivingEntity {
 
         // during world generation, we don't want to run logic for dropping items and xp
         if (getHandle().generation && health == 0) {
-            getHandle().discard();
+            getHandle().discard(null); // Add Bukkit remove cause
             return;
         }
 

paper-server/src/main/java/org/bukkit/craftbukkit/entity/CraftWindCharge.java

@@ -2,6 +2,7 @@ package org.bukkit.craftbukkit.entity;
 
 import org.bukkit.craftbukkit.CraftServer;
 import org.bukkit.entity.WindCharge;
+import org.bukkit.event.entity.EntityRemoveEvent;
 
 public class CraftWindCharge extends CraftFireball implements WindCharge {
     public CraftWindCharge(CraftServer server, net.minecraft.world.entity.projectile.WindCharge entity) {
@@ -11,7 +12,7 @@ public class CraftWindCharge extends CraftFireball implements WindCharge {
     @Override
     public void explode() {
         this.getHandle().explode();
-        this.getHandle().discard(); // SPIGOT-7577 - explode doesn't discard the entity, this happens only in tick and onHitBlock
+        this.getHandle().discard(EntityRemoveEvent.Cause.EXPLODE); // SPIGOT-7577 - explode doesn't discard the entity, this happens only in tick and onHitBlock
     }
 
     @Override

paper-server/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java

@@ -182,6 +182,7 @@ import org.bukkit.event.entity.EntityKnockbackEvent;
 import org.bukkit.event.entity.EntityPickupItemEvent;
 import org.bukkit.event.entity.EntityPlaceEvent;
 import org.bukkit.event.entity.EntityPotionEffectEvent;
+import org.bukkit.event.entity.EntityRemoveEvent;
 import org.bukkit.event.entity.EntityShootBowEvent;
 import org.bukkit.event.entity.EntitySpawnEvent;
 import org.bukkit.event.entity.EntitySpellCastEvent;
@@ -659,7 +660,7 @@ public class CraftEventFactory {
 
             if (spawnReason != SpawnReason.CUSTOM) {
                 if (isAnimal && !world.getWorld().getAllowAnimals() || isMonster && !world.getWorld().getAllowMonsters() || isNpc && !world.getCraftServer().getServer().areNpcsEnabled()) {
-                    entity.discard();
+                    entity.discard(null); // Add Bukkit remove cause
                     return false;
                 }
             }
@@ -697,12 +698,12 @@ public class CraftEventFactory {
         if (event != null && (event.isCancelled() || entity.isRemoved())) {
             Entity vehicle = entity.getVehicle();
             if (vehicle != null) {
-                vehicle.discard();
+                vehicle.discard(null); // Add Bukkit remove cause
             }
             for (Entity passenger : entity.getIndirectPassengers()) {
-                passenger.discard();
+                passenger.discard(null); // Add Bukkit remove cause
             }
-            entity.discard();
+            entity.discard(null); // Add Bukkit remove cause
             return false;
         }
 
@@ -1829,4 +1830,20 @@ public class CraftEventFactory {
         Bukkit.getPluginManager().callEvent(event);
         return event;
     }
+
+    public static void callEntityRemoveEvent(Entity entity, EntityRemoveEvent.Cause cause) {
+        if (entity instanceof EntityPlayer) {
+            return; // Don't call for player
+        }
+
+        if (cause == null) {
+            // Don't call if cause is null
+            // This can happen when an entity changes dimension,
+            // the entity gets removed during world gen or
+            // the entity is removed before it is even spawned (when the spawn event is cancelled for example)
+            return;
+        }
+
+        Bukkit.getPluginManager().callEvent(new EntityRemoveEvent(entity.getBukkitEntity(), cause));
+    }
 }

paper-server/src/test/java/org/bukkit/event/EntityRemoveEventTest.java

@@ -0,0 +1,220 @@
+package org.bukkit.event;
+
+import static org.junit.jupiter.api.Assertions.*;
+import com.google.common.base.Joiner;
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileNotFoundException;
+import java.io.IOException;
+import java.io.InputStream;
+import java.net.URI;
+import java.net.URISyntaxException;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.jar.JarFile;
+import java.util.stream.Stream;
+import net.minecraft.WorldVersion;
+import net.minecraft.server.Main;
+import net.minecraft.world.level.entity.EntityAccess;
+import org.bukkit.support.AbstractTestingBase;
+import org.junit.jupiter.api.AfterAll;
+import org.junit.jupiter.api.BeforeAll;
+import org.junit.jupiter.params.ParameterizedTest;
+import org.junit.jupiter.params.provider.Arguments;
+import org.junit.jupiter.params.provider.MethodSource;
+import org.objectweb.asm.ClassReader;
+import org.objectweb.asm.Handle;
+import org.objectweb.asm.Opcodes;
+import org.objectweb.asm.tree.AbstractInsnNode;
+import org.objectweb.asm.tree.ClassNode;
+import org.objectweb.asm.tree.InvokeDynamicInsnNode;
+import org.objectweb.asm.tree.LineNumberNode;
+import org.objectweb.asm.tree.MethodInsnNode;
+import org.objectweb.asm.tree.MethodNode;
+
+public class EntityRemoveEventTest extends AbstractTestingBase {
+
+    // Needs to be a class, which is present in the source, and not a test class
+    private static final URI CRAFT_BUKKIT_CLASSES;
+    // Needs to be a class, which is from the minecraft package and not patch by CraftBukkit
+    private static final URI MINECRAFT_CLASSES;
+
+    static {
+        try {
+            CRAFT_BUKKIT_CLASSES = Main.class.getProtectionDomain().getCodeSource().getLocation().toURI();
+            MINECRAFT_CLASSES = WorldVersion.class.getProtectionDomain().getCodeSource().getLocation().toURI();
+        } catch (URISyntaxException e) {
+            throw new RuntimeException(e);
+        }
+    }
+
+    private static JarFile jarFile = null;
+    private static Stream<Path> files = null;
+
+    public static Stream<Arguments> craftBukkitData() {
+        return files
+                .map(Path::toFile)
+                .filter(File::isFile)
+                .filter(file -> file.getName().endsWith(".class"))
+                .filter(file -> !file.getName().equals("EntityAccess.class"))
+                .map(file -> {
+                    try {
+                        return new FileInputStream(file);
+                    } catch (FileNotFoundException e) {
+                        throw new RuntimeException(e);
+                    }
+                }).map(Arguments::of);
+    }
+
+    public static Stream<Arguments> minecraftData() {
+        return jarFile
+                .stream()
+                .filter(entry -> entry.getName().endsWith(".class"))
+                .filter(entry -> !new File(CRAFT_BUKKIT_CLASSES.resolve(entry.getName())).exists())
+                .filter(entry -> !entry.getName().startsWith("net/minecraft/gametest/framework"))
+                .map(entry -> {
+                    try {
+                        return jarFile.getInputStream(entry);
+                    } catch (IOException e) {
+                        throw new RuntimeException(e);
+                    }
+                }).map(Arguments::arguments);
+    }
+
+    @BeforeAll
+    public static void beforeAll() throws IOException {
+        assertNotEquals(CRAFT_BUKKIT_CLASSES, MINECRAFT_CLASSES, """
+                The minecraft and craft bukkit uri point to the same directory / file.
+                Please make sure the CRAFT_BUKKIT_CLASSES points to the test class directory and MINECRAFT_CLASSES to the minecraft server jar.
+                """);
+
+        jarFile = new JarFile(new File(MINECRAFT_CLASSES));
+        files = Files.walk(Path.of(CRAFT_BUKKIT_CLASSES));
+    }
+
+    @ParameterizedTest
+    @MethodSource("minecraftData")
+    public void testMinecraftClasses(InputStream inputStream) throws IOException, ClassNotFoundException {
+        test(inputStream);
+    }
+
+    @ParameterizedTest
+    @MethodSource("craftBukkitData")
+    public void testCraftBukkitModifiedClasses(InputStream inputStream) throws IOException, ClassNotFoundException {
+        test(inputStream);
+    }
+
+    private void test(InputStream inputStream) throws IOException, ClassNotFoundException {
+        List<String> missingReason = new ArrayList<>();
+
+        try (inputStream) {
+            ClassReader classReader = new ClassReader(inputStream);
+            ClassNode classNode = new ClassNode(Opcodes.ASM9);
+
+            classReader.accept(classNode, Opcodes.ASM9);
+            boolean minecraftCause = false;
+            boolean bukkitCause = false;
+
+            for (MethodNode methodNode : classNode.methods) {
+                if (methodNode.name.equals("remove") && methodNode.desc.contains("Lnet/minecraft/world/entity/Entity$RemovalReason;")) {
+                    if (methodNode.desc.contains("Lorg/bukkit/event/entity/EntityRemoveEvent$Cause;")) {
+                        bukkitCause = true;
+                    } else {
+                        minecraftCause = true;
+                    }
+                }
+
+                LineNumberNode lastLineNumber = null;
+                for (AbstractInsnNode instruction : methodNode.instructions) {
+                    if (instruction instanceof LineNumberNode lineNumberNode) {
+                        lastLineNumber = lineNumberNode;
+                        continue;
+                    }
+
+                    if (instruction instanceof MethodInsnNode methodInsnNode) {
+                        // Check for discard and remove method call
+                        if (check(methodInsnNode.owner, methodInsnNode.name, methodInsnNode.desc)) {
+                            // Add to list
+                            missingReason.add(String.format("Method name: %s, name: %s, line number: %s", methodNode.name, methodInsnNode.name, lastLineNumber.line));
+                        }
+                    } else if (instruction instanceof InvokeDynamicInsnNode dynamicInsnNode) {
+                        // Check for discard and remove method call
+                        if (!dynamicInsnNode.bsm.getOwner().equals("java/lang/invoke/LambdaMetafactory")
+                                || !dynamicInsnNode.bsm.getName().equals("metafactory") || dynamicInsnNode.bsmArgs.length != 3) {
+                            continue;
+                        }
+
+                        Handle handle = (Handle) dynamicInsnNode.bsmArgs[1];
+
+                        if (check(handle.getOwner(), handle.getName(), handle.getDesc())) {
+                            // Add to list
+                            missingReason.add(String.format("[D] Method name: %s, name: %s, line number: %s", methodNode.name, handle.getName(), lastLineNumber.line));
+                        }
+                    }
+                }
+            }
+
+            assertTrue(missingReason.isEmpty(), String.format("""
+                    The class %s has Entity#discard, Entity#remove and/or Entity#setRemoved method calls, which don't have a bukkit reason.
+                    Please add a bukkit reason to them, if the event should not be called use null as reason.
+
+                    Following missing reasons where found:
+                    %s""", classNode.name, Joiner.on('\n').join(missingReason)));
+
+            if (minecraftCause == bukkitCause) {
+                return;
+            }
+
+            if (minecraftCause) {
+                fail(String.format("""
+                        The class %s has the Entity#remove method override, but there is no bukkit override.
+                        Please add a bukkit method override, which adds the bukkit cause.
+                        """, classNode.name));
+                return; // Will never reach ):
+            }
+
+            fail(String.format("""
+                    The class %s has the Entity#remove method override, to add a bukkit cause, but there is no normal override.
+                    Please remove the bukkit method override, since it is no longer needed.
+                    """, classNode.name));
+        }
+    }
+
+    private boolean check(String owner, String name, String desc) throws ClassNotFoundException {
+        if (!name.equals("discard") && !name.equals("remove") && !name.equals("setRemoved")) {
+            if (!checkExtraMethod(owner, name, desc)) {
+                return false;
+            }
+        }
+
+        if (desc.contains("Lorg/bukkit/event/entity/EntityRemoveEvent$Cause;")) {
+            return false;
+        }
+
+        Class<?> ownerClass = Class.forName(owner.replace('/', '.'), false, getClass().getClassLoader());
+
+        // Found missing discard, remove or setRemoved method call
+        return EntityAccess.class.isAssignableFrom(ownerClass);
+    }
+
+    private boolean checkExtraMethod(String owner, String name, String desc) {
+        if (owner.equals("net/minecraft/world/entity/projectile/EntityShulkerBullet")) {
+            return name.equals("destroy");
+        }
+
+        return false;
+    }
+
+    @AfterAll
+    public static void clear() throws IOException {
+        if (jarFile != null) {
+            jarFile.close();
+        }
+
+        if (files != null) {
+            files.close();
+        }
+    }
+}