static CIFSContext getCachedContext ( String context, Properties props ) throws CIFSException {
        CIFSContext cached = CONTEXT_CACHE.get(context);
        if ( cached == null ) {
            cached = new BaseContext(new PropertyConfiguration(props));
            CONTEXT_CACHE.put(context, cached);
        }
        return cached;
    }


    /**
     * @param applyMutations