rwl.readLock().unlock(); return result;
    public QuantumDef getQuantumDef()    {        QuantumDef result;        rwl.readLock().lock();        {            if (renderer == null)                throw new IllegalStateException(NULL_RENDERER);                        result = renderer.getRenderingDef().getQuantization();        }        rwl.readLock().unlock();        return result;    }