docs: public ResourceHolder<ByteBuffer> getMergeBuffer()
    {
      final ByteBuffer buffer = mergeBuffers.pop();
      return new ResourceHolder<ByteBuffer>()
      {
        @Override
        public ByteBuffer get()
        {
          return buffer;
        }
  
        @Override
        public void close()
        {
          mergeBuffers.add(buffer);
        }
      };
    }