Don't "setLastDamageCause" in the DamageEvent constructor. Addresses BUKKIT-1881

This is now done after the event to allow you to be able to get previous damageCauses, and is now only applied if the event is not canceled.

src/main/java/org/bukkit/command/defaults/KillCommand.java

@@ -24,6 +24,7 @@ public class KillCommand extends VanillaCommand {
             Bukkit.getPluginManager().callEvent(ede);
             if (ede.isCancelled()) return true;
 
+            ede.getEntity().setLastDamageCause(ede);
             player.damage(ede.getDamage());
         } else {
             sender.sendMessage("You can only perform this command as a player");

src/main/java/org/bukkit/event/entity/EntityDamageEvent.java

@@ -1,6 +1,5 @@
 package org.bukkit.event.entity;
 
-import org.bukkit.entity.ComplexEntityPart;
 import org.bukkit.entity.Entity;
 import org.bukkit.event.Cancellable;
 import org.bukkit.event.HandlerList;
@@ -18,12 +17,6 @@ public class EntityDamageEvent extends EntityEvent implements Cancellable {
         super(damagee);
         this.cause = cause;
         this.damage = damage;
-
-        if (damagee instanceof ComplexEntityPart) {
-            ((ComplexEntityPart) damagee).getParent().setLastDamageCause(this);
-        } else {
-            damagee.setLastDamageCause(this);
-        }
     }
 
     public boolean isCancelled() {