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From "Eugene Koontz (Created) (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HADOOP-8168) empty-string owners or groups causes {{MissingFormatWidthExeption}} in o.a.h.fs.shell.Ls.ProcessPath()
Date Tue, 13 Mar 2012 18:38:41 GMT
empty-string owners or groups causes {{MissingFormatWidthExeption}} 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

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: 


The specific exception thrown (a subtype of {{IllegalFormatException}}) is described here:


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