Help with the onBlockAdded method

[Alasar]

Hi community

I'm creating a mod for which I need to explode blocks if they don't are surounded with specific other blocks.

I did it with the onBlockAdded methob:

 

    public void onBlockAdded(WorldProvider par5wp, World par1World,int par2, int par3, int par4, int par6)

    {

        super.onBlockAdded(par1World, par2, par3, par4);

        if (par1World.getBlockId(par2, par3 - 1, par4) != (255|574) & par1World.getBlockId(par2 - 1, par3, par4) != (255|574) & par1World.getBlockId(par2, par3, par4-1) != (255|574) & par1World.getBlockId(par2 + 1, par3, par4) != (255|574)

        & par1World.getBlockId(par2, par3+1, par4) != (255|574) & par1World.getBlockId(par2, par3, par4 + 1) != (255|574))

        {

            if (par1World.isRemote)

            {

 

                par1World.newExplosion((Entity)null, (double)((float)par2 + 0.5F), (double)((float)par3 + 0.5F), (double)((float)par4 + 0.5F), 5.0F, true, true);

           

            }

 

    }

 

 

But it doesn't explode!!

Whats wrong here?