WorldConfig Help!

package com.bukkit.meta1203.WorldConfig;

import org.bukkit.entity.*;
import org.bukkit.event.entity.*;

/**
 * WorldConfig block listener
 * @author meta1203
 */
public class WorldConfigEntityListener extends EntityListener {
    private final WorldConfig plugin;

    public WorldConfigEntityListener(final WorldConfig plugin) {
        this.plugin = plugin;
    }

    //put all Entity related code here
    public void onEntityExplode(EntityExplodeEvent event) {
        String path = "worlds." + event.getLocation().getWorld().getName() + ".explosions";
        if (!plugin.config.getBoolean(path, true)) {
            event.setCancelled(true);
            System.out.println(event.isCancelled());
            return;
        }
    }

    public void onCreatureSpawn(CreatureSpawnEvent event) {
        String path = "worlds." + event.getEntity().getWorld().getName() + ".mobs.";
        boolean aggressive = false;
        boolean passive = false;
        if (event.getCreatureType()==org.bukkit.entity.CreatureType.CHICKEN || event.getCreatureType()==org.bukkit.entity.CreatureType.COW ||event.getCreatureType()==org.bukkit.entity.CreatureType.PIG || event.getCreatureType()==org.bukkit.entity.CreatureType.SHEEP || event.getCreatureType()==org.bukkit.entity.CreatureType.SQUID || event.getCreatureType()==org.bukkit.entity.CreatureType.PIG_ZOMBIE) {
            passive = true;
        }
        if (event.getCreatureType()==org.bukkit.entity.CreatureType.ZOMBIE || event.getCreatureType()==org.bukkit.entity.CreatureType.CREEPER ||event.getCreatureType()==org.bukkit.entity.CreatureType.GHAST || event.getCreatureType()==org.bukkit.entity.CreatureType.SKELETON || event.getCreatureType()==org.bukkit.entity.CreatureType.SLIME || event.getCreatureType()==org.bukkit.entity.CreatureType.PIG_ZOMBIE || event.getCreatureType()==org.bukkit.entity.CreatureType.SPIDER) {
            aggressive = true;
        }
        if (passive && !plugin.config.getBoolean(path + "passive", true)) {
            event.setCancelled(true);
        }
        if (aggressive && !plugin.config.getBoolean(path + "aggressive", true)) {
            event.setCancelled(true);
        }
    }
}

// Other Problem

package com.bukkit.meta1203.WorldConfig;

import java.util.*;

import org.bukkit.block.Block;
import org.bukkit.block.BlockFace;
import org.bukkit.Material;
import org.bukkit.event.block.*;

/**
 * WorldConfig block listener
 * @author meta1203
 */
public class WorldConfigBlockListener extends BlockListener {
    private final WorldConfig plugin;
    private final List<Integer> def = new ArrayList<Integer>();
    public WorldConfigBlockListener(final WorldConfig plugin) {
        this.plugin = plugin;
    }

    public void onBlockPlace (BlockPlaceEvent event) {
        String path = "worlds." + event.getBlock().getWorld().getName() + ".illegalblocks";
        List<Integer> illegallist= plugin.config.getIntList(path, def);
        for (int current:illegallist) {
            if (current==event.getBlockPlaced().getTypeId()) {
                event.setCancelled(true);
                event.getPlayer().sendMessage("This Block Is Not Allowed In This World!");
            }
        }
    }

    public void onBlockIgnite (BlockIgniteEvent event) {
        String path = "worlds." + event.getBlock().getWorld().getName() + ".fire";
        if (plugin.config.getBoolean(path, true)) {
            event.setCancelled(true);
            System.out.println(event.isCancelled());
            return;
        }

    }
}