Solved NullPointerException on BlockPlace

Hello all,
I am creating a plugin that checks if the player places a block and logs the X, Y, and Z coordinates. The problem is that sometimes it throws a NullPointerException. I have no clue why, and that's why I've called upon the Bukkit forum people to help!

Here is the code:

Code:

package me.BioBen.SpecialTools.Listeners;

import me.BioBen.SpecialTools.Main;

import org.bukkit.ChatColor;
import org.bukkit.Location;
import org.bukkit.Material;
import org.bukkit.block.Block;
import org.bukkit.event.EventHandler;
import org.bukkit.event.Listener;
import org.bukkit.event.block.BlockPlaceEvent;

public class BlockPlaceListener implements Listener {
   
    // variables for getting information from other classes
    private final Main plugin;
   
    // variables for class testing
    public int test = 1;
   
   
    public BlockPlaceListener(Main plugin) {
       
        this.plugin = plugin;
       
    }
   
    @EventHandler
    public void onBlockPlace(BlockPlaceEvent e) {
       
        /*
         * top of cuboid
         * 1 2 3
         * 4 5 6
         * 7 8 9
         */
        Location block1 = new Location(e.getBlockPlaced().getWorld(), e.getBlockPlaced().getX() + 1, e.getBlockPlaced().getY() + 1, e.getBlockPlaced().getZ() - 1);
        Location block2 = new Location(e.getBlockPlaced().getWorld(), e.getBlockPlaced().getX() + 1, e.getBlockPlaced().getY() + 1, e.getBlockPlaced().getZ());
        Location block3 = new Location(e.getBlockPlaced().getWorld(), e.getBlockPlaced().getX() + 1, e.getBlockPlaced().getY() + 1, e.getBlockPlaced().getZ() + 1);
        Location block4 = new Location(e.getBlockPlaced().getWorld(), e.getBlockPlaced().getX(), e.getBlockPlaced().getY() + 1, e.getBlockPlaced().getZ() - 1);
        Location block5 = new Location(e.getBlockPlaced().getWorld(), e.getBlockPlaced().getX(), e.getBlockPlaced().getY() + 1, e.getBlockPlaced().getZ());
        Location block6 = new Location(e.getBlockPlaced().getWorld(), e.getBlockPlaced().getX(), e.getBlockPlaced().getY() + 1, e.getBlockPlaced().getZ() + 1);
        Location block7 = new Location(e.getBlockPlaced().getWorld(), e.getBlockPlaced().getX() - 1, e.getBlockPlaced().getY() + 1, e.getBlockPlaced().getZ() - 1);
        Location block8 = new Location(e.getBlockPlaced().getWorld(), e.getBlockPlaced().getX() - 1, e.getBlockPlaced().getY() + 1, e.getBlockPlaced().getZ());
        Location block9 = new Location(e.getBlockPlaced().getWorld(), e.getBlockPlaced().getX() - 1, e.getBlockPlaced().getY() + 1, e.getBlockPlaced().getZ() + 1);

        /*
         * bottom of cuboid
         * 10 11 12
         * 13 14 15
         * 16 17 18
         */
        Location block10 = new Location(e.getBlockPlaced().getWorld(), e.getBlockPlaced().getX() + 1, e.getBlockPlaced().getY() - 1, e.getBlockPlaced().getZ() - 1);
        Location block11 = new Location(e.getBlockPlaced().getWorld(), e.getBlockPlaced().getX() + 1, e.getBlockPlaced().getY() - 1, e.getBlockPlaced().getZ());
        Location block12 = new Location(e.getBlockPlaced().getWorld(), e.getBlockPlaced().getX() + 1, e.getBlockPlaced().getY() - 1, e.getBlockPlaced().getZ() + 1);
        Location block13 = new Location(e.getBlockPlaced().getWorld(), e.getBlockPlaced().getX(), e.getBlockPlaced().getY() - 1, e.getBlockPlaced().getZ() - 1);
        Location block14 = new Location(e.getBlockPlaced().getWorld(), e.getBlockPlaced().getX(), e.getBlockPlaced().getY() - 1, e.getBlockPlaced().getZ());
        Location block15 = new Location(e.getBlockPlaced().getWorld(), e.getBlockPlaced().getX(), e.getBlockPlaced().getY() - 1, e.getBlockPlaced().getZ() + 1);
        Location block16 = new Location(e.getBlockPlaced().getWorld(), e.getBlockPlaced().getX() - 1, e.getBlockPlaced().getY() - 1, e.getBlockPlaced().getZ() - 1);
        Location block17 = new Location(e.getBlockPlaced().getWorld(), e.getBlockPlaced().getX() - 1, e.getBlockPlaced().getY() - 1, e.getBlockPlaced().getZ());
        Location block18 = new Location(e.getBlockPlaced().getWorld(), e.getBlockPlaced().getX() - 1, e.getBlockPlaced().getY() - 1, e.getBlockPlaced().getZ() + 1);

        /*
         * side 1 of cuboid
         * XX XX XX
         * 19 20 21
         * XX XX XX
         */
        Location block19 = new Location(e.getBlockPlaced().getWorld(), e.getBlockPlaced().getX() - 1, e.getBlockPlaced().getY(), e.getBlockPlaced().getZ() - 1);
        Location block20 = new Location(e.getBlockPlaced().getWorld(), e.getBlockPlaced().getX() - 1, e.getBlockPlaced().getY(), e.getBlockPlaced().getZ());
        Location block21 = new Location(e.getBlockPlaced().getWorld(), e.getBlockPlaced().getX() - 1, e.getBlockPlaced().getY(), e.getBlockPlaced().getZ() + 1);

        /*
         * side 2 of cuboid
         * XX XX XX
         * XX 22 23
         * XX XX XX
         */
        Location block22 = new Location(e.getBlockPlaced().getWorld(), e.getBlockPlaced().getX(), e.getBlockPlaced().getY(), e.getBlockPlaced().getZ() + 1);
        Location block23 = new Location(e.getBlockPlaced().getWorld(), e.getBlockPlaced().getX() + 1, e.getBlockPlaced().getY(), e.getBlockPlaced().getZ() + 1);

        /*
         * side 3 of cuboid
         * XX XX XX
         * XX 24 25
         * XX XX XX
         */
        Location block24 = new Location(e.getBlockPlaced().getWorld(), e.getBlockPlaced().getX() + 1, e.getBlockPlaced().getY(), e.getBlockPlaced().getZ());
        Location block25 = new Location(e.getBlockPlaced().getWorld(), e.getBlockPlaced().getX() + 1, e.getBlockPlaced().getY(), e.getBlockPlaced().getZ() - 1);

        /*
         * side 4 of cuboid
         * XX XX XX
         * XX 26 XX
         * XX XX XX
         */
        Location block26 = new Location(e.getBlockPlaced().getWorld(), e.getBlockPlaced().getX(), e.getBlockPlaced().getY(), e.getBlockPlaced().getZ() - 1);
       
        Block b1 = block1.getBlock();
        Block b2 = block2.getBlock();
        Block b3 = block3.getBlock();
        Block b4 = block4.getBlock();
        Block b5 = block5.getBlock();
        Block b6 = block6.getBlock();
        Block b7 = block7.getBlock();
        Block b8 = block8.getBlock();
        Block b9 = block9.getBlock();
        Block b10 = block10.getBlock();
        Block b11 = block11.getBlock();
        Block b12 = block12.getBlock();
        Block b13 = block13.getBlock();
        Block b14 = block14.getBlock();
        Block b15 = block15.getBlock();
        Block b16 = block16.getBlock();
        Block b17 = block17.getBlock();
        Block b18 = block18.getBlock();
        Block b19 = block19.getBlock();
        Block b20 = block20.getBlock();
        Block b21 = block21.getBlock();
        Block b22 = block22.getBlock();
        Block b23 = block23.getBlock();
        Block b24 = block24.getBlock();
        Block b25 = block25.getBlock();
        Block b26 = block26.getBlock();
       
       
        Block[] blocklist = new Block[26];
        blocklist[0] = b1;
        blocklist[1] = b2;
        blocklist[2] = b3;
        blocklist[3] = b4;
        blocklist[4] = b5;
        blocklist[5] = b6;
        blocklist[6] = b7;
        blocklist[7] = b8;
        blocklist[8] = b9;
        blocklist[9] = b10;
        blocklist[10] = b11;
        blocklist[11] = b12;
        blocklist[12] = b13;
        blocklist[13] = b14;
        blocklist[14] = b15;
        blocklist[15] = b16;
        blocklist[16] = b17;
        blocklist[17] = b18;
        blocklist[18] = b19;
        blocklist[19] = b20;
        blocklist[20] = b21;
        blocklist[21] = b22;
        blocklist[22] = b23;
        blocklist[23] = b24;
        blocklist[24] = b25;
        blocklist[25] = b26;
       
        for (Block block : blocklist) {
           
            if (block.getType().equals(Material.COAL_ORE) ||
                    block.getType().equals(Material.IRON_ORE) ||
                    block.getType().equals(Material.GOLD_ORE) ||
                    block.getType().equals(Material.DIAMOND_ORE) ||
                    block.getType().equals(Material.EMERALD_ORE) ||
                    block.getType().equals(Material.REDSTONE_ORE) ||
                    block.getType().equals(Material.GLOWING_REDSTONE_ORE) ||
                    block.getType().equals(Material.LAPIS_ORE) ||
                    block.getType().equals(Material.QUARTZ_ORE) ||
                    block.getType().equals(Material.COAL_BLOCK) ||
                    block.getType().equals(Material.IRON_BLOCK) ||
                    block.getType().equals(Material.GOLD_BLOCK) ||
                    block.getType().equals(Material.DIAMOND_BLOCK) ||
                    block.getType().equals(Material.EMERALD_BLOCK) ||
                    block.getType().equals(Material.REDSTONE_BLOCK) ||
                    block.getType().equals(Material.LAPIS_BLOCK) ||
                    block.getType().equals(Material.QUARTZ_BLOCK)) {
               
                plugin.blocklistx.add(e.getBlockPlaced().getX());
                plugin.blocklisty.add(e.getBlockPlaced().getY());
                plugin.blocklistz.add(e.getBlockPlaced().getZ());
               
                plugin.console.sendMessage(ChatColor.GREEN + Integer.toString(plugin.blocklistx.size()));
                plugin.console.sendMessage(ChatColor.GREEN + Integer.toString(plugin.blocklisty.size()));
                plugin.console.sendMessage(ChatColor.GREEN + Integer.toString(plugin.blocklistz.size()));
               
            }
           
        }
       
        plugin.console.sendMessage(ChatColor.RED + Integer.toString(e.getBlockPlaced().getX()));
        plugin.console.sendMessage(ChatColor.RED + Integer.toString(e.getBlockPlaced().getY()));
        plugin.console.sendMessage(ChatColor.RED + Integer.toString(e.getBlockPlaced().getZ()));
       
    }
}

 

@AngryCupcake274 Stack trace?

 

@AngryCupcake274
http://bukkit.org/threads/how-to-re...ubleshoot-your-own-plugins-by-yourself.32457/