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https://issues.apache.org/jira/browse/HDFS-7287?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14183462#comment-14183462
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Colin Patrick McCabe commented on HDFS-7287:
--------------------------------------------

Please do not add another dependency for this.  We already have a function to 
deal with mangling XML: 
{{org.apache.hadoop.hdfs.util.XMLUtils#mangleXmlString}}.

> The OfflineImageViewer (OIV) can output invalid XML depending on the filename
> -----------------------------------------------------------------------------
>
>                 Key: HDFS-7287
>                 URL: https://issues.apache.org/jira/browse/HDFS-7287
>             Project: Hadoop HDFS
>          Issue Type: Bug
>    Affects Versions: 2.0.0-alpha
>            Reporter: Ravi Prakash
>            Assignee: Ravi Prakash
>         Attachments: HDFS-7287.patch
>
>
> If the filename contains a character which is invalid in XML, 
> TextWriterImageVisitor.write() or PBImageXmlWriter.o() prints out the string 
> unescaped. For us this was the character 0x0



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