Minecraft exploding sheep

public class sheeplosion implements Listener {
    @EventHandler
    public void onShear(PlayerShearEntityEvent event)
    {
        if(event.getPlayer().hasPermission("ree.troll.sheeplosion")) {
            Player thePlayer = event.getPlayer();
            Entity sheep = event.getEntity();
            LivingEntity livingSheep = (LivingEntity) sheep;
            World world = sheep.getWorld();
            world.createExplosion(sheep.getLocation(), 3);
            livingSheep.setHealth(0);
            econ.withdrawPlayer(thePlayer, 150.0);
        }
        return;
    }
}