[1.7.10] attackEntity method doesn't work

Hello! I created entity class which extends EntityZombie class. When I try to override attackEntity method, it just does not work, System.out.prinln("attackEnttiy") does not work too.

@Override
protected void attackEntity(Entity par1Entity, float par2)
{
    System.out.println("attackEntity");
    super.attackEntity(par1Entity, par2);
}

Maybe it does not work because super class hasn't that method, but how to use it then?