--- ../src-base/minecraft/net/minecraft/dispenser/BehaviorProjectileDispense.java
+++ ../src-work/minecraft/net/minecraft/dispenser/BehaviorProjectileDispense.java
@@ -7,6 +7,12 @@
 import net.minecraft.util.EnumFacing;
 import net.minecraft.world.World;
 
+// CraftBukkit start
+import net.minecraft.tileentity.TileEntityDispenser;
+import org.bukkit.craftbukkit.inventory.CraftItemStack;
+import org.bukkit.event.block.BlockDispenseEvent;
+// CraftBukkit end
+
 public abstract class BehaviorProjectileDispense extends BehaviorDefaultDispenseItem
 {
     private static final String __OBFID = "CL_00001394";
@@ -17,9 +23,42 @@
         IPosition iposition = BlockDispenser.func_149939_a(p_82487_1_);
         EnumFacing enumfacing = BlockDispenser.func_149937_b(p_82487_1_.getBlockMetadata());
         IProjectile iprojectile = this.getProjectileEntity(world, iposition);
+        // CraftBukkit start
+        ItemStack itemstack1 = p_82487_2_.splitStack(1);
+        org.bukkit.block.Block block = world.getWorld().getBlockAt(p_82487_1_.getXInt(), p_82487_1_.getYInt(), p_82487_1_.getZInt());
+        CraftItemStack craftItem = CraftItemStack.asCraftMirror(itemstack1);
+        BlockDispenseEvent event = new BlockDispenseEvent(block, craftItem.clone(), new org.bukkit.util.Vector((double) enumfacing.getFrontOffsetX(), (double)((float) enumfacing.getFrontOffsetY() + 0.1F), (double) enumfacing.getFrontOffsetZ()));
+
+        if (!BlockDispenser.eventFired)
+        {
+            world.getServer().getPluginManager().callEvent(event);
+        }
+
+        if (event.isCancelled())
+        {
+            p_82487_2_.stackSize++;
+            return p_82487_2_;
+        }
+
+        if (!event.getItem().equals(craftItem))
+        {
+            p_82487_2_.stackSize++;
+            // Chain to handler for new item
+            ItemStack eventStack = CraftItemStack.asNMSCopy(event.getItem());
+            IBehaviorDispenseItem ibehaviordispenseitem = (IBehaviorDispenseItem) BlockDispenser.dispenseBehaviorRegistry.getObject(eventStack.getItem());
+
+            if (ibehaviordispenseitem != IBehaviorDispenseItem.itemDispenseBehaviorProvider && ibehaviordispenseitem != this)
+            {
+                ibehaviordispenseitem.dispense(p_82487_1_, eventStack);
+                return p_82487_2_;
+            }
+        }
+
         iprojectile.setThrowableHeading((double)enumfacing.getFrontOffsetX(), (double)((float)enumfacing.getFrontOffsetY() + 0.1F), (double)enumfacing.getFrontOffsetZ(), this.func_82500_b(), this.func_82498_a());
+        ((Entity) iprojectile).projectileSource = new org.bukkit.craftbukkit.projectiles.CraftBlockProjectileSource((TileEntityDispenser) p_82487_1_.getBlockTileEntity());
+        // CraftBukkit end
         world.spawnEntityInWorld((Entity)iprojectile);
-        p_82487_2_.splitStack(1);
+        // p_82487_2_.splitStack(1); // CraftBukkit - Handled during event processing
         return p_82487_2_;
     }