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https://issues.apache.org/jira/browse/HADOOP-8168?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13235818#comment-13235818
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Eugene Koontz commented on HADOOP-8168:
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Hi Daryn, Your fix looks a bit cleaner than mine, thanks!
-Eugene
> 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: 0.24.0, 0.23.1
> 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/1.6.0/docs/api/java/util/Formatter.html#intFlags
> The specific exception thrown (a subtype of {{IllegalFormatException}}) is
> described here:
> http://docs.oracle.com/javase/1.6.0/docs/api/java/util/MissingFormatWidthException.html
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