Issue: a!isNullOrEmpty() not working with blank a!map()

I made this edge case part of my universal null check.

    if(
      local!typeNum = 'type!{http://www.appian.com/ae/types/2009}Map',
      /* Has no keys at all or all values are null */
      or(
        length(a!keys(ri!value)) = 0,
        all(a!isNullOrEmpty(_), index(ri!value, a!keys(ri!value), null))
      ),
      

Hmm, it does seem odd - that being said, I'm pretty sure behind the scenes this function is just doing a length() check on the value. If I do length(a!map()) it returns 1, so that's probably why this is returning false.

If you'd like, you could probably submit a support case and have the team investigate it. My hunch though is that it is behaving as expected given the result using the length function.

I have seen this happen multiple times within process models if we get an empty CDT map as a result and try to use this function to verify if it is empty. So I usually check one of the CDT's not null parameter to determine if the value is actually empty. if you are using a map, better to check either a not null key or all the keys.