Bitmaps from bitvectors

[Chris Nuernberger]

Hey, I am working with Arrow data and they store their validity maps just in vanilla bitvectors.  Is there a fancy, fast way to convert from a byte nio buffer that is a vanilla bitset to a roaring bitmap?  I tried directly calling new org.roaringbitmap.buffer.ImmutableRoaringBitmap. with the data and that did not work, I imagine because it was expecting some more information in the buffer than just bits raised.

Thanks for any help and your time!

Chris