@Maxime Garcia @Rike Hanssen quick question... Any particular reason why

cross

is used here instead of

combine

? I think you could use

combine

with

by: 0

and get the same result. Just wondering if there was something special about using

cross

here instead

mpileup_pair = mpileup_normal
    .cross(mpileup_tumor)
    .map { normal, tumor -> [normal[0], normal[1], tumor[1], [], [], [], []] }

Fine with me to switch. Do you intend to deprecate the cross operator?

I think we can exclude it from typed workflows. So when you migrate this workflow to static typing you would likely replace each

cross

with a

combine

or

join

ok, not a problem