The Mapper class is by itself the identity mapper in the new API.
Check out the javadocs when in doubt:
On Sat, Jul 28, 2012 at 1:06 AM, Abhinav M Kulkarni
<[EMAIL PROTECTED]> wrote:
> What has become of IdentityMapper in 1.0.3? It is not present under
> mapreduce.lib. I understand there was a JIRA improvement to port all the
> classes from mapred.lib to mapreduce.lib.