Paper/nms-patches/EntityEnderPearl.patch

--- ../work/decompile-8eb82bde/net/minecraft/server/EntityEnderPearl.java	2015-01-05 10:11:38.333916086 +1100
+++ src/main/java/net/minecraft/server/EntityEnderPearl.java	2015-01-05 10:11:38.333916086 +1100
@@ -1,7 +1,20 @@
 package net.minecraft.server;
 
+// CraftBukkit start
+import org.bukkit.Bukkit;
+import org.bukkit.craftbukkit.event.CraftEventFactory;
+import org.bukkit.event.player.PlayerTeleportEvent;
+// CraftBukkit end
+
 public class EntityEnderPearl extends EntityProjectile {
 
+    // CraftBukkit start
+    // This is backported from 1.8.1
+    public EntityEnderPearl(World world) {
+        super(world);
+    }
+    // CraftBukkit end
+
     public EntityEnderPearl(World world, EntityLiving entityliving) {
         super(world, entityliving);
     }
@@ -29,14 +42,28 @@
                         entityendermite.setPositionRotation(entityliving.locX, entityliving.locY, entityliving.locZ, entityliving.yaw, entityliving.pitch);
                         this.world.addEntity(entityendermite);
                     }
-
-                    if (entityliving.av()) {
-                        entityliving.mount((Entity) null);
+                    
+                    // CraftBukkit start - Fire PlayerTeleportEvent
+                    org.bukkit.craftbukkit.entity.CraftPlayer player = entityplayer.getBukkitEntity();
+                    org.bukkit.Location location = getBukkitEntity().getLocation();
+                    location.setPitch(player.getLocation().getPitch());
+                    location.setYaw(player.getLocation().getYaw());
+
+                    PlayerTeleportEvent teleEvent = new PlayerTeleportEvent(player, player.getLocation(), location, PlayerTeleportEvent.TeleportCause.ENDER_PEARL);
+                    Bukkit.getPluginManager().callEvent(teleEvent);
+
+                    if (!teleEvent.isCancelled() && !entityplayer.playerConnection.isDisconnected()) {
+                        if (entityliving.av()) {
+                            entityliving.mount((Entity) null);
+                        }
+
+                        entityplayer.playerConnection.teleport(teleEvent.getTo());
+                        entityliving.fallDistance = 0.0F;
+                        CraftEventFactory.entityDamage = this;
+                        entityliving.damageEntity(DamageSource.FALL, 5.0F);
+                        CraftEventFactory.entityDamage = null;
                     }
-
-                    entityliving.enderTeleportTo(this.locX, this.locY, this.locZ);
-                    entityliving.fallDistance = 0.0F;
-                    entityliving.damageEntity(DamageSource.FALL, 5.0F);
+                    // CraftBukkit end
                 }
             }