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From "Harsh J (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-4172) Clean up java warnings in the hadoop-mapreduce-project sub projects
Date Fri, 27 Apr 2012 10:43:49 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-4172?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13263565#comment-13263565

Harsh J commented on MAPREDUCE-4172:


Is there still interest in clearing up these javac warnings? I have addressed all failing
tests across each project (And in my tree I have them all and tests all still pass).

I can't maintain this for very long. The changes are very trivial in nature and chunked for
easy review. If you feel review would be easy with a mega patch, I'll supply that. 

We could at least review these incrementally in the current structure. Whats the big deal
with commits done per project anyway, when the commit does include proper message and only
touches few points in the code without altering logic?
> Clean up java warnings in the hadoop-mapreduce-project sub projects
> -------------------------------------------------------------------
>                 Key: MAPREDUCE-4172
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-4172
>             Project: Hadoop Map/Reduce
>          Issue Type: Task
>          Components: build
>    Affects Versions: trunk
>            Reporter: Harsh J
>            Assignee: Harsh J
> There are lots of warnings in the hadoop-mapreduce-project presently. We can clear almost
all of this away:
> * Unused imports
> * Unused variables
> ** For loops that can be replaced with while instead to save an unused variable
> * Unused methods
> * Deprecation warnings where an alternative can be used (Especially SequenceFile reader/writer
usage and MiniDFSCluster usage)
> * Deprecation warnings where an alternative isn't clear (Especially MiniMRCluster usage
and DistributedCache API usage where a Job object may not be available)
> * Unchecked conversions
> * Raw type usage
> * (etc.)
> I'm going to open one sub-task per sub-project we have, with patches attached to them.

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