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https://issues.apache.org/jira/browse/PDFBOX-5728?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17793804#comment-17793804
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ASF subversion and git services commented on PDFBOX-5728:
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Commit 1914390 from Tilman Hausherr in branch 'pdfbox/branches/3.0'
[ https://svn.apache.org/r1914390 ]
PDFBOX-5728: check whether there are any glyph names in the POST table
> NullPointerException in TTFSubsetter.buildPostTable()
> -----------------------------------------------------
>
> Key: PDFBOX-5728
> URL: https://issues.apache.org/jira/browse/PDFBOX-5728
> Project: PDFBox
> Issue Type: Bug
> Components: FontBox
> Affects Versions: 2.0.28
> Reporter: Daniel Gredler
> Priority: Major
>
> It looks like `TTFSubsetter.buildPostTable()` can sometimes throw NPEs:
> java.lang.NullPointerException: null
> at
> org.apache.fontbox.ttf.TTFSubsetter.buildPostTable(TTFSubsetter.java:859)
> at
> org.apache.fontbox.ttf.TTFSubsetter.writeToStream(TTFSubsetter.java:971)
> Looking at the code, the `names` map keys are Strings that come from
> `PostScriptTable.getName(gid)`, which can sometimes return `null`. A few
> lines later, these possibly-null String keys are converted to bytes, at which
> point the system may throw a NPE.
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