Check if in my 2x2x2 hole is bedrock (BlockBreak Listener)

Code:

import org.bukkit.ChatColor;
import org.bukkit.Material;
import org.bukkit.block.Block;
import org.bukkit.entity.Player;
import org.bukkit.event.EventHandler;
import org.bukkit.event.EventPriority;
import org.bukkit.event.Listener;
import org.bukkit.event.block.BlockBreakEvent;

public class BlockbreakListener implements Listener{
   
@EventHandler(ignoreCancelled = true, priority=EventPriority.MONITOR)
  public void hammer(BlockBreakEvent event)
  {
   Player p = (Player) event.getPlayer();
  Block block = null;
  Block b = event.getBlock();
   
  if (event.isCancelled()){
  p.performCommand("help");   
   
  }
  if(p.getItemInHand().getItemMeta().getLore().contains(ChatColor.RED + "Explosion I"))
  {
       
       
       
  for(int xOff = 0; xOff <= 1; ++xOff)
  {   
  for(int yOff = -1; yOff <= 0; ++yOff)
  {
  for(int zOff = 0; zOff <= 1; ++zOff)
  {
     block = b.getRelative(xOff, yOff, zOff);
     if(b.getType() == Material.BEDROCK) { //I want to check if the blocks around the mined block are made of Bedrock
       System.out.println("NO");
       event.setCancelled(true);
       
         
       }
     }
     
  block.breakNaturally();
  }
  }
  }

At the moment it mine bedrock too, I want to cancel the event if there is Bedrock in my 2x2x2 hole!

EDIT by Moderator: merged posts, please use the edit button instead of double posting.

 

So how do I check for the bedrock? I mean I know how to do it for the mined block but not for the blocks around who get automatically destroyed too.