From 4c16855bdd8beb71993d60dbd548b728ace1f2dd Mon Sep 17 00:00:00 2001
From: Owen1212055 <23108066+Owen1212055@users.noreply.github.com>
Date: Sun, 6 Mar 2022 11:09:09 -0500
Subject: [PATCH] Prevent entity loading causing async lookups

---
 .../minecraft/world/entity/Entity.java.patch  | 154 +++++++++---------
 .../world/entity/NeutralMob.java.patch        |  71 ++++++--
 2 files changed, 135 insertions(+), 90 deletions(-)

diff --git a/paper-server/patches/sources/net/minecraft/world/entity/Entity.java.patch b/paper-server/patches/sources/net/minecraft/world/entity/Entity.java.patch
index cb5a91d416..014f36de47 100644
--- a/paper-server/patches/sources/net/minecraft/world/entity/Entity.java.patch
+++ b/paper-server/patches/sources/net/minecraft/world/entity/Entity.java.patch
@@ -393,7 +393,7 @@
      }
  
      protected final AABB makeBoundingBox() {
-@@ -462,6 +716,15 @@
+@@ -462,10 +716,20 @@
          this.baseTick();
      }
  
@@ -409,7 +409,12 @@
      public void baseTick() {
          ProfilerFiller gameprofilerfiller = Profiler.get();
  
-@@ -475,7 +738,7 @@
+         gameprofilerfiller.push("entityBaseTick");
++        if (firstTick && this instanceof net.minecraft.world.entity.NeutralMob neutralMob) neutralMob.tickInitialPersistentAnger(level); // Paper - Prevent entity loading causing async lookups
+         this.inBlockState = null;
+         if (this.isPassenger() && this.getVehicle().isRemoved()) {
+             this.stopRiding();
+@@ -475,7 +739,7 @@
              --this.boardingCooldown;
          }
  
@@ -418,7 +423,7 @@
          if (this.canSpawnSprintParticle()) {
              this.spawnSprintParticle();
          }
-@@ -502,7 +765,7 @@
+@@ -502,7 +766,7 @@
                      this.setRemainingFireTicks(this.remainingFireTicks - 1);
                  }
  
@@ -427,7 +432,7 @@
                      this.setTicksFrozen(0);
                      this.level().levelEvent((Player) null, 1009, this.blockPosition, 1);
                  }
-@@ -514,6 +777,10 @@
+@@ -514,6 +778,10 @@
          if (this.isInLava()) {
              this.lavaHurt();
              this.fallDistance *= 0.5F;
@@ -438,7 +443,7 @@
          }
  
          this.checkBelowWorld();
-@@ -525,7 +792,7 @@
+@@ -525,7 +793,7 @@
          world = this.level();
          if (world instanceof ServerLevel worldserver) {
              if (this instanceof Leashable) {
@@ -447,7 +452,7 @@
              }
          }
  
-@@ -537,7 +804,11 @@
+@@ -537,7 +805,11 @@
      }
  
      public void checkBelowWorld() {
@@ -460,7 +465,7 @@
              this.onBelowWorld();
          }
  
-@@ -568,15 +839,32 @@
+@@ -568,15 +840,32 @@
  
      public void lavaHurt() {
          if (!this.fireImmune()) {
@@ -495,7 +500,7 @@
              }
  
          }
-@@ -587,9 +875,25 @@
+@@ -587,9 +876,25 @@
      }
  
      public final void igniteForSeconds(float seconds) {
@@ -522,7 +527,7 @@
      public void igniteForTicks(int ticks) {
          if (this.remainingFireTicks < ticks) {
              this.setRemainingFireTicks(ticks);
-@@ -610,7 +914,7 @@
+@@ -610,7 +915,7 @@
      }
  
      protected void onBelowWorld() {
@@ -531,7 +536,7 @@
      }
  
      public boolean isFree(double offsetX, double offsetY, double offsetZ) {
-@@ -750,6 +1054,28 @@
+@@ -750,6 +1055,28 @@
                      }
                  }
  
@@ -560,7 +565,7 @@
                  if (!this.level().isClientSide() || this.isControlledByLocalInstance()) {
                      Entity.MovementEmission entity_movementemission = this.getMovementEmission();
  
-@@ -1131,8 +1457,22 @@
+@@ -1131,8 +1458,22 @@
  
      protected SoundEvent getSwimHighSpeedSplashSound() {
          return SoundEvents.GENERIC_SPLASH;
@@ -583,7 +588,7 @@
      public void recordMovementThroughBlocks(Vec3 oldPos, Vec3 newPos) {
          this.movementThisTick.add(new Entity.Movement(oldPos, newPos));
      }
-@@ -1599,6 +1939,7 @@
+@@ -1599,6 +1940,7 @@
          this.setXRot(Mth.clamp(pitch, -90.0F, 90.0F) % 360.0F);
          this.yRotO = this.getYRot();
          this.xRotO = this.getXRot();
@@ -591,7 +596,7 @@
      }
  
      public void absMoveTo(double x, double y, double z) {
-@@ -1609,6 +1950,7 @@
+@@ -1609,6 +1951,7 @@
          this.yo = y;
          this.zo = d4;
          this.setPos(d3, y, d4);
@@ -599,7 +604,7 @@
      }
  
      public void moveTo(Vec3 pos) {
-@@ -1628,11 +1970,19 @@
+@@ -1628,11 +1971,19 @@
      }
  
      public void moveTo(double x, double y, double z, float yaw, float pitch) {
@@ -619,7 +624,7 @@
      }
  
      public final void setOldPosAndRot() {
-@@ -1701,6 +2051,7 @@
+@@ -1701,6 +2052,7 @@
      public void push(Entity entity) {
          if (!this.isPassengerOfSameVehicle(entity)) {
              if (!entity.noPhysics && !this.noPhysics) {
@@ -627,7 +632,7 @@
                  double d0 = entity.getX() - this.getX();
                  double d1 = entity.getZ() - this.getZ();
                  double d2 = Mth.absMax(d0, d1);
-@@ -1737,7 +2088,21 @@
+@@ -1737,7 +2089,21 @@
      }
  
      public void push(double deltaX, double deltaY, double deltaZ) {
@@ -650,7 +655,7 @@
          this.hasImpulse = true;
      }
  
-@@ -1858,8 +2223,20 @@
+@@ -1858,9 +2224,21 @@
      }
  
      public boolean isPushable() {
@@ -661,17 +666,18 @@
 +    public boolean isCollidable(boolean ignoreClimbing) {
 +        // Paper end - Climbing should not bypass cramming gamerule
          return false;
-+    }
-+
+     }
+ 
 +    // CraftBukkit start - collidable API
 +    public boolean canCollideWithBukkit(Entity entity) {
 +        return this.isPushable();
-     }
++    }
 +    // CraftBukkit end
- 
++
      public void awardKillScore(Entity entityKilled, DamageSource damageSource) {
          if (entityKilled instanceof ServerPlayer) {
-@@ -1889,74 +2266,133 @@
+             CriteriaTriggers.ENTITY_KILLED_PLAYER.trigger((ServerPlayer) entityKilled, this, damageSource);
+@@ -1889,74 +2267,133 @@
      }
  
      public boolean saveAsPassenger(CompoundTag nbt) {
@@ -828,7 +834,7 @@
              }
  
              ListTag nbttaglist;
-@@ -1972,10 +2408,10 @@
+@@ -1972,10 +2409,10 @@
                      nbttaglist.add(StringTag.valueOf(s));
                  }
  
@@ -841,7 +847,7 @@
              if (this.isVehicle()) {
                  nbttaglist = new ListTag();
                  iterator = this.getPassengers().iterator();
-@@ -1984,17 +2420,44 @@
+@@ -1984,17 +2421,44 @@
                      Entity entity = (Entity) iterator.next();
                      CompoundTag nbttagcompound1 = new CompoundTag();
  
@@ -889,10 +895,11 @@
          } catch (Throwable throwable) {
              CrashReport crashreport = CrashReport.forThrowable(throwable, "Saving entity NBT");
              CrashReportCategory crashreportsystemdetails = crashreport.addCategory("Entity being saved");
-@@ -2080,6 +2543,71 @@
+@@ -2079,7 +2543,72 @@
+                 }
              } else {
                  throw new IllegalStateException("Entity has invalid position");
-             }
++            }
 +
 +            // CraftBukkit start
 +            // Spigot start
@@ -949,7 +956,7 @@
 +                        spawnReason = org.bukkit.event.entity.CreatureSpawnEvent.SpawnReason.NATURAL;
 +                    }
 +                }
-+            }
+             }
 +            if (spawnReason == null) {
 +                spawnReason = org.bukkit.event.entity.CreatureSpawnEvent.SpawnReason.DEFAULT;
 +            }
@@ -961,7 +968,7 @@
          } catch (Throwable throwable) {
              CrashReport crashreport = CrashReport.forThrowable(throwable, "Loading entity NBT");
              CrashReportCategory crashreportsystemdetails = crashreport.addCategory("Entity being loaded");
-@@ -2101,6 +2629,12 @@
+@@ -2101,6 +2630,12 @@
          return entitytypes.canSerialize() && minecraftkey != null ? minecraftkey.toString() : null;
      }
  
@@ -974,7 +981,7 @@
      protected abstract void readAdditionalSaveData(CompoundTag nbt);
  
      protected abstract void addAdditionalSaveData(CompoundTag nbt);
-@@ -2153,9 +2687,23 @@
+@@ -2153,9 +2688,23 @@
          if (stack.isEmpty()) {
              return null;
          } else {
@@ -999,7 +1006,7 @@
              world.addFreshEntity(entityitem);
              return entityitem;
          }
-@@ -2184,7 +2732,16 @@
+@@ -2184,7 +2733,16 @@
          if (this.isAlive() && this instanceof Leashable leashable) {
              if (leashable.getLeashHolder() == player) {
                  if (!this.level().isClientSide()) {
@@ -1017,7 +1024,7 @@
                          leashable.removeLeash();
                      } else {
                          leashable.dropLeash();
-@@ -2200,6 +2757,13 @@
+@@ -2200,6 +2758,13 @@
  
              if (itemstack.is(Items.LEAD) && leashable.canHaveALeashAttachedToIt()) {
                  if (!this.level().isClientSide()) {
@@ -1031,7 +1038,7 @@
                      leashable.setLeashedTo(player, true);
                  }
  
-@@ -2265,15 +2829,15 @@
+@@ -2265,15 +2830,15 @@
      }
  
      public boolean showVehicleHealth() {
@@ -1050,7 +1057,7 @@
              return false;
          } else {
              for (Entity entity1 = entity; entity1.vehicle != null; entity1 = entity1.vehicle) {
-@@ -2285,11 +2849,32 @@
+@@ -2285,11 +2850,32 @@
              if (!force && (!this.canRide(entity) || !entity.canAddPassenger(this))) {
                  return false;
              } else {
@@ -1084,7 +1091,7 @@
                  this.vehicle = entity;
                  this.vehicle.addPassenger(this);
                  entity.getIndirectPassengersStream().filter((entity2) -> {
-@@ -2314,19 +2899,30 @@
+@@ -2314,19 +2900,30 @@
      }
  
      public void removeVehicle() {
@@ -1117,7 +1124,7 @@
      protected void addPassenger(Entity passenger) {
          if (passenger.getVehicle() != this) {
              throw new IllegalStateException("Use x.startRiding(y), not y.addPassenger(x)");
-@@ -2349,21 +2945,53 @@
+@@ -2349,21 +2946,53 @@
          }
      }
  
@@ -1177,7 +1184,7 @@
      }
  
      protected boolean canAddPassenger(Entity passenger) {
-@@ -2464,7 +3092,7 @@
+@@ -2464,7 +3093,7 @@
                      if (teleporttransition != null) {
                          ServerLevel worldserver1 = teleporttransition.newLevel();
  
@@ -1186,7 +1193,7 @@
                              this.teleport(teleporttransition);
                          }
                      }
-@@ -2547,7 +3175,7 @@
+@@ -2547,7 +3176,7 @@
      }
  
      public boolean isCrouching() {
@@ -1195,7 +1202,7 @@
      }
  
      public boolean isSprinting() {
-@@ -2563,7 +3191,7 @@
+@@ -2563,7 +3192,7 @@
      }
  
      public boolean isVisuallySwimming() {
@@ -1204,7 +1211,7 @@
      }
  
      public boolean isVisuallyCrawling() {
-@@ -2571,6 +3199,13 @@
+@@ -2571,6 +3200,13 @@
      }
  
      public void setSwimming(boolean swimming) {
@@ -1218,7 +1225,7 @@
          this.setSharedFlag(4, swimming);
      }
  
-@@ -2609,6 +3244,7 @@
+@@ -2609,6 +3245,7 @@
  
      @Nullable
      public PlayerTeam getTeam() {
@@ -1226,7 +1233,7 @@
          return this.level().getScoreboard().getPlayersTeam(this.getScoreboardName());
      }
  
-@@ -2624,8 +3260,12 @@
+@@ -2624,8 +3261,12 @@
          return this.getTeam() != null ? this.getTeam().isAlliedTo(team) : false;
      }
  
@@ -1240,7 +1247,7 @@
      }
  
      public boolean getSharedFlag(int index) {
-@@ -2644,7 +3284,7 @@
+@@ -2644,7 +3285,7 @@
      }
  
      public int getMaxAirSupply() {
@@ -1249,7 +1256,7 @@
      }
  
      public int getAirSupply() {
-@@ -2652,7 +3292,18 @@
+@@ -2652,7 +3293,18 @@
      }
  
      public void setAirSupply(int air) {
@@ -1269,7 +1276,7 @@
      }
  
      public int getTicksFrozen() {
-@@ -2679,11 +3330,40 @@
+@@ -2679,11 +3331,40 @@
  
      public void thunderHit(ServerLevel world, LightningBolt lightning) {
          this.setRemainingFireTicks(this.remainingFireTicks + 1);
@@ -1312,7 +1319,7 @@
      }
  
      public void onAboveBubbleCol(boolean drag) {
-@@ -2713,7 +3393,7 @@
+@@ -2713,7 +3394,7 @@
          this.resetFallDistance();
      }
  
@@ -1321,7 +1328,7 @@
          return true;
      }
  
-@@ -2818,7 +3498,7 @@
+@@ -2818,7 +3499,7 @@
      public String toString() {
          String s = this.level() == null ? "~NULL~" : this.level().toString();
  
@@ -1330,7 +1337,7 @@
      }
  
      public final boolean isInvulnerableToBase(DamageSource damageSource) {
-@@ -2838,6 +3518,13 @@
+@@ -2838,6 +3519,13 @@
      }
  
      public void restoreFrom(Entity original) {
@@ -1344,7 +1351,7 @@
          CompoundTag nbttagcompound = original.saveWithoutId(new CompoundTag());
  
          nbttagcompound.remove("Dimension");
-@@ -2850,8 +3537,57 @@
+@@ -2850,8 +3538,57 @@
      public Entity teleport(TeleportTransition teleportTarget) {
          Level world = this.level();
  
@@ -1402,7 +1409,7 @@
                  ServerLevel worldserver1 = teleportTarget.newLevel();
                  boolean flag = worldserver1.dimension() != worldserver.dimension();
  
-@@ -2918,10 +3654,19 @@
+@@ -2918,10 +3655,19 @@
              gameprofilerfiller.pop();
              return null;
          } else {
@@ -1423,7 +1430,7 @@
              Iterator iterator1 = list1.iterator();
  
              while (iterator1.hasNext()) {
-@@ -2947,7 +3692,7 @@
+@@ -2947,7 +3693,7 @@
      }
  
      private void sendTeleportTransitionToRidingPlayers(TeleportTransition teleportTarget) {
@@ -1432,7 +1439,7 @@
          Iterator iterator = this.getIndirectPassengers().iterator();
  
          while (iterator.hasNext()) {
-@@ -2995,9 +3740,17 @@
+@@ -2995,9 +3741,17 @@
      }
  
      protected void removeAfterChangingDimensions() {
@@ -1453,7 +1460,7 @@
          }
  
      }
-@@ -3006,11 +3759,26 @@
+@@ -3006,11 +3760,26 @@
          return PortalShape.getRelativePosition(portalRect, portalAxis, this.position(), this.getDimensions(this.getPose()));
      }
  
@@ -1480,7 +1487,7 @@
          if (from.dimension() == Level.END && to.dimension() == Level.OVERWORLD) {
              Iterator iterator = this.getPassengers().iterator();
  
-@@ -3134,10 +3902,16 @@
+@@ -3134,10 +3903,16 @@
          return (Boolean) this.entityData.get(Entity.DATA_CUSTOM_NAME_VISIBLE);
      }
  
@@ -1500,7 +1507,7 @@
          return entity != null;
      }
  
-@@ -3187,7 +3961,7 @@
+@@ -3187,7 +3962,7 @@
      /** @deprecated */
      @Deprecated
      protected void fixupDimensions() {
@@ -1509,7 +1516,7 @@
          EntityDimensions entitysize = this.getDimensions(entitypose);
  
          this.dimensions = entitysize;
-@@ -3196,7 +3970,7 @@
+@@ -3196,7 +3971,7 @@
  
      public void refreshDimensions() {
          EntityDimensions entitysize = this.dimensions;
@@ -1518,7 +1525,7 @@
          EntityDimensions entitysize1 = this.getDimensions(entitypose);
  
          this.dimensions = entitysize1;
-@@ -3258,10 +4032,29 @@
+@@ -3258,10 +4033,29 @@
      }
  
      public final void setBoundingBox(AABB boundingBox) {
@@ -1550,7 +1557,7 @@
          return this.getDimensions(pose).eyeHeight();
      }
  
-@@ -3335,7 +4128,7 @@
+@@ -3335,7 +4129,7 @@
      }
  
      @Nullable
@@ -1559,7 +1566,7 @@
          return null;
      }
  
-@@ -3373,20 +4166,34 @@
+@@ -3373,20 +4167,34 @@
      }
  
      private Stream<Entity> getIndirectPassengersStream() {
@@ -1594,7 +1601,7 @@
          return () -> {
              return this.getIndirectPassengersStream().iterator();
          };
-@@ -3399,6 +4206,7 @@
+@@ -3399,6 +4207,7 @@
      }
  
      public boolean hasExactlyOnePlayerPassenger() {
@@ -1602,7 +1609,7 @@
          return this.countPlayerPassengers() == 1;
      }
  
-@@ -3435,7 +4243,7 @@
+@@ -3435,7 +4244,7 @@
      }
  
      public boolean isControlledByLocalInstance() {
@@ -1611,7 +1618,7 @@
  
          if (entityliving instanceof Player entityhuman) {
              return entityhuman.isLocalPlayer();
-@@ -3445,7 +4253,7 @@
+@@ -3445,7 +4254,7 @@
      }
  
      public boolean isControlledByClient() {
@@ -1620,7 +1627,7 @@
  
          return entityliving != null && entityliving.isControlledByClient();
      }
-@@ -3463,7 +4271,7 @@
+@@ -3463,7 +4272,7 @@
          return new Vec3((double) f1 * d2 / (double) f3, 0.0D, (double) f2 * d2 / (double) f3);
      }
  
@@ -1629,7 +1636,7 @@
          return new Vec3(this.getX(), this.getBoundingBox().maxY, this.getZ());
      }
  
-@@ -3489,8 +4297,37 @@
+@@ -3489,8 +4298,37 @@
          return 1;
      }
  
@@ -1668,20 +1675,19 @@
      }
  
      public void lookAt(EntityAnchorArgument.Anchor anchorPoint, Vec3 target) {
-@@ -3550,7 +4387,12 @@
- 
+@@ -3551,6 +4389,11 @@
                                      vec3d = vec3d.add(vec3d1);
                                      ++k1;
-+                                }
+                                 }
 +                                // CraftBukkit start - store last lava contact location
 +                                if (tag == FluidTags.LAVA) {
 +                                    this.lastLavaContact = blockposition_mutableblockposition.immutable();
-                                 }
++                                }
 +                                // CraftBukkit end
                              }
                          }
                      }
-@@ -3613,7 +4455,7 @@
+@@ -3613,7 +4456,7 @@
          return new ClientboundAddEntityPacket(this, entityTrackerEntry);
      }
  
@@ -1690,7 +1696,7 @@
          return this.type.getDimensions();
      }
  
-@@ -3714,7 +4556,39 @@
+@@ -3714,7 +4557,39 @@
          return this.getZ((2.0D * this.random.nextDouble() - 1.0D) * widthScale);
      }
  
@@ -1730,7 +1736,7 @@
          if (this.position.x != x || this.position.y != y || this.position.z != z) {
              this.position = new Vec3(x, y, z);
              int i = Mth.floor(x);
-@@ -3732,6 +4606,12 @@
+@@ -3732,6 +4607,12 @@
              this.levelCallback.onMove();
          }
  
@@ -1743,7 +1749,7 @@
      }
  
      public void checkDespawn() {}
-@@ -3818,8 +4698,16 @@
+@@ -3818,8 +4699,16 @@
  
      @Override
      public final void setRemoved(Entity.RemovalReason reason) {
@@ -1761,7 +1767,7 @@
          }
  
          if (this.removalReason.shouldDestroy()) {
-@@ -3827,8 +4715,8 @@
+@@ -3827,8 +4716,8 @@
          }
  
          this.getPassengers().forEach(Entity::stopRiding);
@@ -1772,7 +1778,7 @@
      }
  
      public void unsetRemoved() {
-@@ -3887,7 +4775,7 @@
+@@ -3887,7 +4776,7 @@
      }
  
      public Vec3 getKnownMovement() {
@@ -1781,7 +1787,7 @@
  
          if (entityliving instanceof Player entityhuman) {
              if (this.isAlive()) {
-@@ -3962,4 +4850,14 @@
+@@ -3962,4 +4851,14 @@
  
          void accept(Entity entity, double x, double y, double z);
      }
diff --git a/paper-server/patches/sources/net/minecraft/world/entity/NeutralMob.java.patch b/paper-server/patches/sources/net/minecraft/world/entity/NeutralMob.java.patch
index 25410e40a5..2088822118 100644
--- a/paper-server/patches/sources/net/minecraft/world/entity/NeutralMob.java.patch
+++ b/paper-server/patches/sources/net/minecraft/world/entity/NeutralMob.java.patch
@@ -10,24 +10,37 @@
  
  public interface NeutralMob {
  
-@@ -48,14 +51,14 @@
-                     if (entity instanceof Mob) {
-                         Mob entityinsentient = (Mob) entity;
+@@ -42,24 +45,11 @@
+                 UUID uuid = nbt.getUUID("AngryAt");
  
+                 this.setPersistentAngerTarget(uuid);
+-                Entity entity = ((ServerLevel) world).getEntity(uuid);
+-
+-                if (entity != null) {
+-                    if (entity instanceof Mob) {
+-                        Mob entityinsentient = (Mob) entity;
+-
 -                        this.setTarget(entityinsentient);
-+                        this.setTarget(entityinsentient, EntityTargetEvent.TargetReason.UNKNOWN, false); // CraftBukkit
-                         this.setLastHurtByMob(entityinsentient);
-                     }
- 
-                     if (entity instanceof Player) {
-                         Player entityhuman = (Player) entity;
- 
+-                        this.setLastHurtByMob(entityinsentient);
+-                    }
+-
+-                    if (entity instanceof Player) {
+-                        Player entityhuman = (Player) entity;
+-
 -                        this.setTarget(entityhuman);
-+                        this.setTarget(entityhuman, EntityTargetEvent.TargetReason.UNKNOWN, false); // CraftBukkit
-                         this.setLastHurtByPlayer(entityhuman);
-                     }
- 
-@@ -114,7 +117,7 @@
+-                        this.setLastHurtByPlayer(entityhuman);
+-                    }
+-
+-                }
++                // Paper - Prevent entity loading causing async lookups; Moved diff to separate method
++                // If this entity already survived its first tick, e.g. is loaded and ticked in sync, actively
++                // tick the initial persistent anger.
++                // If not, let the first tick on the baseTick call the method later down the line.
++                if (this instanceof Entity entity && !entity.firstTick) this.tickInitialPersistentAnger(world);
+             }
+         }
+     }
+@@ -114,7 +104,7 @@
      default void stopBeingAngry() {
          this.setLastHurtByMob((LivingEntity) null);
          this.setPersistentAngerTarget((UUID) null);
@@ -36,7 +49,7 @@
          this.setRemainingPersistentAngerTime(0);
      }
  
-@@ -127,6 +130,8 @@
+@@ -127,8 +117,34 @@
  
      void setTarget(@Nullable LivingEntity target);
  
@@ -45,3 +58,29 @@
      boolean canAttack(LivingEntity target);
  
      @Nullable
+     LivingEntity getTarget();
++
++    // Paper start - Prevent entity loading causing async lookups
++    // Update last hurt when ticking
++    default void tickInitialPersistentAnger(Level level) {
++        UUID target = getPersistentAngerTarget();
++        if (target == null) {
++            return;
++        }
++
++        Entity entity = ((ServerLevel) level).getEntity(target);
++
++        if (entity != null) {
++            if (entity instanceof Mob mob) {
++                this.setTarget(mob, EntityTargetEvent.TargetReason.UNKNOWN, false); // CraftBukkit
++                this.setLastHurtByMob(mob);
++            }
++
++            if (entity instanceof Player player) {
++                this.setTarget(player, EntityTargetEvent.TargetReason.UNKNOWN, false); // CraftBukkit
++                this.setLastHurtByPlayer(player);
++            }
++        }
++    }
++    // Paper end - Prevent entity loading causing async lookups
+ }