Removing specific blocks from EntityExplosionEvent

So I have a method for handling an explosion event, and will remove relevant blocks from the game's explosion list:

Code:java

    @EventHandler
    public void onExplode(EntityExplodeEvent event) {
        Game g = this.gm.getGame(event.getEntity().getWorld());
        if (g != null) {
            this.plugin.debug("Block list pre-handling:\n" + event.blockList());
            g.handleExplosion(event.blockList());
            this.plugin.debug("Block list post-handling:\n" + event.blockList());
        }
    }

Code:java

    public void handleExplosion(List<Block> blocks) {
        if (this.getStage() == GameStage.PREGAME) { // no blocks should break
            blocks.clear();
            return;
        }
        Iterator<Block> itr = blocks.iterator();
        nextBlock:
        while (itr.hasNext()) {
            Location loc = itr.next().getLocation();
            this.plugin.debug("Location of block: " + loc); // prints location
            Vector v = new Vector(loc.getBlockX(), loc.getBlockY(), loc.getBlockZ()); 
            if (this.getStage() == GameStage.PREWALL) { // no "walls" should be destroyed
                for (CuboidRegion wall : this.getArena().getWalls()) {
                    if (wall.contains(v)) {
                        this.plugin.debug("Block is wall, removing!");
                        itr.remove();
                        continue nextBlock;
                    }
                }
            }
            for (CuboidRegion wall : this.getArena().getProtectedWalls()) { // protected blocks should never break
                if (wall.contains(v)) {
                    this.plugin.debug("Block is protected, removing!");
                    itr.remove();
                    continue nextBlock;
                }
            }
        }
    }

It seems that the blocks absolutely are removed from the event.blockList(), but they still end up being destroyed in-game. I would prefer not having to remove the relevant blocks manually and handle the drop percentages, so why isn't removing blocks from the destruction list working?

 

1Rogue
blockList() only returns a list of blocks that would have been destroyed or have been destroyed.

 

It should be modifiable via the event.

The only thing I can even think of is some plugin is on a higher priority re-adding all the blocks somehow, which seems rather unlikely.

Edit: I can confirm that it does work on the current CraftBukkit build.

 

I managed to fix my issue. The code seemed to be correct, but I didn't think about protecting the ground underneath the things I wanted to originally protect

 

So what exactly was wrong? Or was it blowing up blocks outside the region you were protecting?

 

Precisely.