You are correct. I posted in haste. This the fact that Mapper takes a Mapper.Context rather than a MapContext is worth a question on mapreduce-dev.
On Wed, Jul 22, 2009 at 2:22 PM, David Hall <[email protected]> wrote: > Mapper.Context extends MapContext. The interfaces takes > Mapper.Context, and IIRC method arguments aren't contravariant in > Java. > >
