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From "Bo Wang (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (HADOOP-8750) Configuration.getClasses never returns default value
Date Fri, 31 Aug 2012 00:33:07 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-8750?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Bo Wang resolved HADOOP-8750.

    Resolution: Duplicate

Duplicated with HADOOP-7851
> Configuration.getClasses never returns default value
> ----------------------------------------------------
>                 Key: HADOOP-8750
>                 URL: https://issues.apache.org/jira/browse/HADOOP-8750
>             Project: Hadoop Common
>          Issue Type: Bug
>            Reporter: Bo Wang
>            Assignee: Bo Wang
> getClasses method in Configuration never returns defaultValue even if the classnames
is not set in Configuration.
> This is because the condition "if (classnames == null)" is always True. If name is not
set in Configuration, classnames will be an empty array (but not null).
> To fix it, just change the condition to "if (classnames == null || classnames.length
== 0)"

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