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From "Eugene Koontz (Updated) (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HADOOP-8168) empty-string owners or groups causes {{MissingFormatWidthException}} in o.a.h.fs.shell.Ls.ProcessPath()
Date Tue, 13 Mar 2012 18:46:43 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-8168?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Eugene Koontz updated HADOOP-8168:
----------------------------------

    Status: Patch Available  (was: Open)
    
> empty-string owners or groups causes {{MissingFormatWidthException}} in o.a.h.fs.shell.Ls.ProcessPath()
> -------------------------------------------------------------------------------------------------------
>
>                 Key: HADOOP-8168
>                 URL: https://issues.apache.org/jira/browse/HADOOP-8168
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: fs
>    Affects Versions: 0.23.1, 0.24.0
>            Reporter: Eugene Koontz
>         Attachments: HADOOP-8168.patch
>
>
> In {{adjustColumnWidths()}}, we set the member variable {{lineFormat}}, which is used
by {{ProcessPath()}} to print directory entries. Owners and groups are formatted using the
formatting conversion {{%-Xs}}, where X is the max length of the owner or group. However,
when trying this with an S3 URL, I found that the owner and group were empty (""). This caused
X to be 0, which means that the formatting conversion is set to {{%-0s}}. This caused a {{MissingFormatWidthException}}
to be thrown when the formatting string was used in {{ProcessPath()}}. 
> Formatting conversions are described here: 
> http://docs.oracle.com/javase/1.5.0/docs/api/java/util/Formatter.html#intFlags
> The specific exception thrown (a subtype of {{IllegalFormatException}}) is described
here:
> http://docs.oracle.com/javase/1.5.0/docs/api/java/util/MissingFormatWidthException.html

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