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From "Tsz Wo (Nicholas), SZE (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-4172) Clean up java warnings in the hadoop-mapreduce-project sub projects
Date Tue, 01 May 2012 01:48:54 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-4172?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13265598#comment-13265598
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Tsz Wo (Nicholas), SZE commented on MAPREDUCE-4172:
---------------------------------------------------

In general, I appreciate that you are fixing the warnings.  However, please don't suppress
them you can't fix them.  Please also add more description on what are actually done in individual
JIRAs instead of "Clean up Xxx". Thanks.
                
> 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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