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https://issues.apache.org/jira/browse/HDFS-7287?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14186168#comment-14186168
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Colin Patrick McCabe commented on HDFS-7287:
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bq. Hi Colin! Thanks for writing XMLUtils.mangleXmlString . I'd like to solicit
opinion from you and the community. If I mangle the string using
XMLUtils.mangleXmlString, then the output of oiv might be an XML file which
will fail an xmllint test.
Maybe I'm missing something, but I'm not sure why the output of
{{mangleXmlString}} would be something that would fail {{XmlLint}}.
{{mangleXmlString}} was specifically designed to avoid causing problems like
this (invalid code points, etc.). Can you explain why you think it's invalid?
> 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-7287.1.patch, 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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