JsonFormat performs a build instead of buildPartial. As such if required field
is missing in base object then it successfully perform merge, however if some
nested message's required field is missing, merge causes exception. Changing
build to buildPartial at all the 2 places inside this file should work.
Original issue reported on code.google.com by
iitk.ri...@gmail.comon 25 Mar 2012 at 7:54