ServerTimestamp is always null on Firebase Firestore

Question

I am trying to add a timestamp field in an Android client with Firebase Firestore.

According to the documentation:

Annotation used to mark a D

Answer 1

I had a similar problem,

I was getting the exception ...has type java.sql.Timestamp, got java.util.Date ..., so I just replace the type from Timestamp to Date ( from java.util.Date) and worked fine.