Development Assistance Piston moving non-movable blocks

I tried to code a small plugin for pistons to move barrier blocks (id 166) based on a theory I had to do it, but it doesn't seem to work. Could someone please point my code in a better direction?

The barrier block doesn't get pushed by the piston, or even move at all.

Code:

public class BarriersCanMove extends JavaPlugin implements Listener{
    public BarriersCanMove (BarriersCanMove plugin) {
        plugin.getServer().getPluginManager().registerEvents(this, plugin);
    }
  
    @SuppressWarnings("deprecation")
    @EventHandler
    public void onPistonExtend (BlockPistonEvent e) {
        Block block = e.getBlock();
      
        if (block.getTypeId() == 166) {
          
            if (BlockFace.DOWN != null) {
                Location newBlockLoc = new Location(block.getWorld(), block.getX(), block.getY() - 1, block.getZ());
                Block barrier = newBlockLoc.getBlock();
              
                block.setTypeId(0);
                barrier.setTypeId(166);
                e.setCancelled(false);
            }
            else if (BlockFace.UP != null) {
                Location newBlockLoc = new Location(block.getWorld(), block.getX(), block.getY() + 1, block.getZ());
                Block barrier = newBlockLoc.getBlock();
              
                block.setTypeId(0);
                barrier.setTypeId(166);
                e.setCancelled(false);
            }
        }
    }
}

Everything in the code is based off https://hub.spigotmc.org/javadocs/bukkit/.

 

It's craftbukkit though. Craftbukkit 1.8.3 compiled from the source

 

@Veilbreaker CraftBukkit 1.8 doesn't exist. And @timtower doesn't know you replied until you tag him. Any 1.8 is Spigot or some other non-bukkit system. It's not Craftbukkit unless you download it either from dl.bukkit.org or savebukkit.org
Also, BlockFace.DOWN and BlockFace.UP are constants. They will never be null, ever. I think what you are looking for is

Code:

if (((PistonBaseMaterial) e.getBlock().getData()).getFacing().equals(BlockFace.UP)) {

 

Thank @pie_flavor but it is craftbukkit regardless that it's on spigots site, as they describe in this forum http://www.spigotmc.org/threads/bukkit-craftbukkit-spigot-1-8.36598/ if you would actually read about it. That and hence it being in the url "bukkit-craftbukkit".

Also @pie_flavor , that didn't seem to work either, PistonBaseMaterial can't be resolved to type, so I tried changing it to Material.PISTON_BASE, but that can't be resolved to type either. Any other suggestions, please?

 

@timtower please respond to this post. he is unconvinced by plebeian