Pets Help

Code:

package Pets;

import java.util.HashMap;

import net.minecraft.server.v1_7_R4.AttributeInstance;
import net.minecraft.server.v1_7_R4.EntityInsentient;
import net.minecraft.server.v1_7_R4.GenericAttributes;
import net.minecraft.server.v1_7_R4.PathEntity;

import org.bukkit.Bukkit;
import org.bukkit.Location;
import org.bukkit.craftbukkit.v1_7_R4.entity.CraftEntity;
import org.bukkit.entity.Entity;
import org.bukkit.entity.Player;
import org.bukkit.scheduler.BukkitRunnable;

public class PetHandler {

    public static HashMap <String, Entity> player_pet = new HashMap<String, Entity>();

    public static void createPet(final Player player, final Entity pet, final double speed) {
        if (player_pet.containsKey(player.getName())) {
            player_pet.get(player.getName()).remove();
            player_pet.remove(player.getName());
           }


             player_pet.put(player.getName(), pet);

          new BukkitRunnable() {

           @SuppressWarnings("deprecation")
           public void run() {
            if (!pet.isValid() || (!player.isOnline())) {
             this.cancel();
            }

            net.minecraft.server.v1_7_R4.Entity petentity = ((CraftEntity) pet).getHandle();
            ((EntityInsentient) petentity).getNavigation().a(2);
            Object petf = ((CraftEntity) pet).getHandle();
            Location targetLocation = player.getLocation();

            PathEntity path;
            path = ((EntityInsentient) petf).getNavigation().a(targetLocation.getX() + 1, targetLocation.getY(), targetLocation.getZ() + 1);
            if (path != null) {
             ((EntityInsentient) petf).getNavigation().a(path, 1.0D);
             ((EntityInsentient) petf).getNavigation().a(2.0D);
            }

            if (!player.isOnline()) {
             pet.remove();
            }
        
            int distance = (int)
                    Bukkit.getPlayer(player.getName()).getLocation().distance(pet.getLocation());
                    if (distance > 10 && !pet.isDead() && player.isOnGround() && player.isOnline()) {
                    pet.teleport(player.getLocation());

                    }

            AttributeInstance attributes = ((EntityInsentient)((CraftEntity)pet).getHandle()).getAttributeInstance(GenericAttributes.d);
            attributes.setValue(speed);
           }


          }.runTaskTimer(PetHandler.i, 0L, 20L);
         }

}

It's the littler runTaskTimer(PetHandler."i"m oL, 20L); thats causing the error.