Daniel Gredler created PDFBOX-5728:
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Summary: 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
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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