Solved Make passive mobs follow player

Alright, so I'm working on making a pet plugin for my server, and I'm having a bit of trouble making this work.

So far, I have this code firing on a command ('/pet')

Code:

        final Pig pig = (Pig) player.getWorld().spawnEntity(
                        player.getLocation(), EntityType.PIG);
 
                new BukkitRunnable() {
 
                    public void run() {
                        ((EntityInsentient) ((CraftEntity) pig).getHandle())
                                .getNavigation().a(player.getLocation().getX(),
                                        player.getLocation().getY(),
                                        player.getLocation().getZ(), 0.25F);
                    }
                }.runTaskTimer(plugin, 0, 2);

The pig that I'm spawning just looks at the player, but doesn't actually walk. Any suggestions?

Thanks.

EDIT: Actually, the problem was that the speed was too low...