int result;
    public int getChannelFamily(int w)    {        int result;        rwl.readLock().lock();        {            if (renderer == null)                throw new IllegalStateException(NULL_RENDERER);                        ChannelBinding[] cb = renderer.getChannelBindings();            result = QuantumFactory.convertFamilyType(cb[w].getFamily());        }        rwl.readLock().unlock();        return result;    }