[jira] Commented: (MAHOUT-408) Mahout CLI OptionExceptions when given "-h" or "--help" for specific programs

["Jake Mannix (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/MAHOUT-408?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12874343#action_12874343 ] 

Jake Mannix commented on MAHOUT-408:
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> Mahout CLI OptionExceptions when given "-h" or "--help" for specific programs
> -----------------------------------------------------------------------------
>
>                 Key: MAHOUT-408
>                 URL: https://issues.apache.org/jira/browse/MAHOUT-408
>             Project: Mahout
>          Issue Type: Bug
>    Affects Versions: 0.4
>            Reporter: Shannon Quinn
>            Priority: Minor
>             Fix For: 0.4
>
>         Attachments: MAHOUT-408.patch
>
>
> The following Mahout programs incorrectly processed -h flags, throwing OptionExceptions:
> seq2sparse
> seqdirectory
> seqwiki
> svd
> trainclassifier
> transpose
> The first five are easily addressed by adding "parser.setHelpOption(helpOpt)" in the correct driver files (thanks to Jeff Eastman). The "transpose" program also contained a NullPointerException thrown when two integer arguments were not verified. See the patch file for a possible fix.

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