Make end portal go to a different location.

gistfile1.txt

@EventHandler
public void onPlayerLeaveEnedEvent(PlayerTeleportEvent event){
  World world = Bukkit.getServer().getWorld("world");
  Location l = new Location(world, x, y, z);
  if(event.getFrom().getWorld().getEnvironment() == Environment.THE_END){
    event.setTo(loc);
  }
}