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

--- a/net/minecraft/world/entity/projectile/EntityLlamaSpit.java
+++ b/net/minecraft/world/entity/projectile/EntityLlamaSpit.java
@@ -18,6 +18,10 @@
 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) {
@@ -41,7 +45,7 @@
         Vec3D vec3d = this.getDeltaMovement();
         MovingObjectPosition movingobjectposition = ProjectileHelper.getHitResultOnMoveVector(this, this::canHitEntity);
 
-        this.hitTargetOrDeflectSelf(movingobjectposition);
+        this.preHitTargetOrDeflectSelf(movingobjectposition); // CraftBukkit - projectile hit event
         double d0 = this.getX() + vec3d.x;
         double d1 = this.getY() + vec3d.y;
         double d2 = this.getZ() + vec3d.z;
@@ -50,9 +54,9 @@
         float f = 0.99F;
 
         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));
             this.applyGravity();
@@ -86,7 +90,7 @@
     protected void onHitBlock(MovingObjectPositionBlock movingobjectpositionblock) {
         super.onHitBlock(movingobjectpositionblock);
         if (!this.level().isClientSide) {
-            this.discard();
+            this.discard(EntityRemoveEvent.Cause.HIT); // CraftBukkit - add Bukkit remove cause
         }
 
     }