Github user MikeThomsen commented on the issue:
https://github.com/apache/nifi/pull/2255
@mattyb149 do you think you could take a look at this? It's only a 3 line
change to one of the conversion APIs in the Record API package. The scenario
where it came up was Mongo's client API returns a java.util.Date object for
dates and to convert a Mongo date to a Record API timestamp field, I had to
enable a conversion of java.util.Date to a java.sql.Timestamp.---
