PaperMC/paper-server/patches/sources/net/minecraft/world/item/ExperienceBottleItem.java.patch

--- a/net/minecraft/world/item/ExperienceBottleItem.java
+++ b/net/minecraft/world/item/ExperienceBottleItem.java
@@ -21,22 +21,38 @@
     @Override
     public InteractionResult use(Level world, Player user, InteractionHand hand) {
         ItemStack itemStack = user.getItemInHand(hand);
-        world.playSound(
-            null,
-            user.getX(),
-            user.getY(),
-            user.getZ(),
-            SoundEvents.EXPERIENCE_BOTTLE_THROW,
-            SoundSource.NEUTRAL,
-            0.5F,
-            0.4F / (world.getRandom().nextFloat() * 0.4F + 0.8F)
-        );
+        // Paper - PlayerLaunchProjectileEvent - moved down
         if (world instanceof ServerLevel serverLevel) {
-            Projectile.spawnProjectileFromRotation(ThrownExperienceBottle::new, serverLevel, itemStack, user, -20.0F, 0.7F, 1.0F);
+            // Paper start - PlayerLaunchProjectileEvent
+            final Projectile.Delayed<ThrownExperienceBottle> thrownExperienceBottle = Projectile.spawnProjectileFromRotationDelayed(ThrownExperienceBottle::new, serverLevel, itemStack, user, -20.0F, 0.7F, 1.0F);
+            com.destroystokyo.paper.event.player.PlayerLaunchProjectileEvent event = new com.destroystokyo.paper.event.player.PlayerLaunchProjectileEvent((org.bukkit.entity.Player) user.getBukkitEntity(), org.bukkit.craftbukkit.inventory.CraftItemStack.asCraftMirror(itemStack), (org.bukkit.entity.Projectile) thrownExperienceBottle.projectile().getBukkitEntity());
+            if (event.callEvent() && thrownExperienceBottle.attemptSpawn()) {
+                if (event.shouldConsume()) {
+                    itemStack.consume(1, user);
+                } else if (user instanceof net.minecraft.server.level.ServerPlayer) {
+                    ((net.minecraft.server.level.ServerPlayer) user).getBukkitEntity().updateInventory();
+                }
+
+                world.playSound(
+                    null,
+                    user.getX(),
+                    user.getY(),
+                    user.getZ(),
+                    SoundEvents.EXPERIENCE_BOTTLE_THROW,
+                    SoundSource.NEUTRAL,
+                    0.5F,
+                    0.4F / (world.getRandom().nextFloat() * 0.4F + 0.8F)
+                );
+            } else {
+                if (user instanceof net.minecraft.server.level.ServerPlayer) {
+                    ((net.minecraft.server.level.ServerPlayer) user).getBukkitEntity().updateInventory();
+                }
+                return InteractionResult.FAIL;
+            }
+            // Paper end - PlayerLaunchProjectileEvent
         }
 
-        user.awardStat(Stats.ITEM_USED.get(this));
-        itemStack.consume(1, user);
+        // Paper - PlayerLaunchProjectileEvent - moved up
         return InteractionResult.SUCCESS;
     }