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

--- a/net/minecraft/world/entity/animal/EntityCat.java
+++ b/net/minecraft/world/entity/animal/EntityCat.java
@@ -410,7 +410,7 @@
                 }
             } else if (this.isFood(itemstack)) {
                 this.usePlayerItem(entityhuman, enumhand, itemstack);
-                if (this.random.nextInt(3) == 0) {
+                if (this.random.nextInt(3) == 0 && !org.bukkit.craftbukkit.event.CraftEventFactory.callEntityTameEvent(this, entityhuman).isCancelled()) { // CraftBukkit
                     this.tame(entityhuman);
                     this.setOrderedToSit(true);
                     this.level.broadcastEntityEvent(this, (byte) 7);
@@ -467,7 +467,7 @@
     private static class PathfinderGoalTemptChance extends PathfinderGoalTempt {
 
         @Nullable
-        private EntityHuman selectedPlayer;
+        private EntityLiving selectedPlayer; // CraftBukkit
         private final EntityCat cat;
 
         public PathfinderGoalTemptChance(EntityCat entitycat, double d0, RecipeItemStack recipeitemstack, boolean flag) {
@@ -608,7 +608,15 @@
             while (iterator.hasNext()) {
                 ItemStack itemstack = (ItemStack) iterator.next();
 
-                this.cat.level.addFreshEntity(new EntityItem(this.cat.level, (double) blockposition_mutableblockposition.getX() - (double) MathHelper.sin(this.cat.yBodyRot * 0.017453292F), (double) blockposition_mutableblockposition.getY(), (double) blockposition_mutableblockposition.getZ() + (double) MathHelper.cos(this.cat.yBodyRot * 0.017453292F), itemstack));
+                // CraftBukkit start
+                EntityItem entityitem = new EntityItem(this.cat.level, (double) blockposition_mutableblockposition.getX() - (double) MathHelper.sin(this.cat.yBodyRot * 0.017453292F), (double) blockposition_mutableblockposition.getY(), (double) blockposition_mutableblockposition.getZ() + (double) MathHelper.cos(this.cat.yBodyRot * 0.017453292F), itemstack);
+                org.bukkit.event.entity.EntityDropItemEvent event = new org.bukkit.event.entity.EntityDropItemEvent(this.cat.getBukkitEntity(), (org.bukkit.entity.Item) entityitem.getBukkitEntity());
+                entityitem.level.getCraftServer().getPluginManager().callEvent(event);
+                if (event.isCancelled()) {
+                    continue;
+                }
+                this.cat.level.addFreshEntity(entityitem);
+                // CraftBukkit end
             }
 
         }
@@ -640,10 +648,10 @@
         private final EntityCat cat;
 
         public a(EntityCat entitycat, Class<T> oclass, float f, double d0, double d1) {
-            Predicate predicate = IEntitySelector.NO_CREATIVE_OR_SPECTATOR;
+            // Predicate predicate = IEntitySelector.NO_CREATIVE_OR_SPECTATOR; // CraftBukkit - decompile error
 
-            Objects.requireNonNull(predicate);
-            super(entitycat, oclass, f, d0, d1, predicate::test);
+            // Objects.requireNonNull(predicate); // CraftBukkit - decompile error
+            super(entitycat, oclass, f, d0, d1, IEntitySelector.NO_CREATIVE_OR_SPECTATOR::test); // CraftBukkit - decompile error
             this.cat = entitycat;
         }