int minY = -64;
int maxY = 319;
Bukkit.getScheduler().runTaskAsynchronously(TMProtection.PLUGIN.getPlugin(), () -> {
            for (int x = 0; x < 16; x++) {
                for (int z = 0; z < 16; z++) {
                    for (int y = minY; y < maxY; y++) {
                        Block currentBlock = chunk.getBlock(x, y, z);
                        if(currentBlock.getType().equals(Material.AIR)) continue;
                        if (chunk.containsKey(currentBlock.getType().name()))
                            chunk.put(currentBlock.getType().name(), chunk.get(currentBlock.getType().name()) + 1);
                        else chunk.put(currentBlock.getType().name(), 1);
                    }
                }
            }
        })