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Posted to dev@pdfbox.apache.org by "Michal Stefan (Jira)" <ji...@apache.org> on 2024/01/22 10:45:00 UTC
[jira] [Updated] (PDFBOX-5755) NullPointerException in CmapSubtable
[ https://issues.apache.org/jira/browse/PDFBOX-5755?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Michal Stefan updated PDFBOX-5755:
----------------------------------
Summary: NullPointerException in CmapSubtable (was: fontbox component CmapSubtable)
> NullPointerException in CmapSubtable
> ------------------------------------
>
> Key: PDFBOX-5755
> URL: https://issues.apache.org/jira/browse/PDFBOX-5755
> Project: PDFBox
> Issue Type: Bug
> Components: FontBox
> Affects Versions: 2.0.28
> Reporter: Michal Stefan
> Priority: Minor
>
> Hi,
> there was a NPE in getCharCode method of CmapSubtable:
> {code:java}
> java.lang.NullPointerException: Cannot read the array length because "this.glyphIdToCharacterCode" is null
> at org.apache.fontbox.ttf.CmapSubtable.getCharCode(CmapSubtable.java:669)
> at org.apache.fontbox.ttf.CmapSubtable.getCharCodes(CmapSubtable.java:686)
> at org.apache.pdfbox.pdmodel.font.PDType0Font.toUnicode(PDType0Font.java:533)
> at org.apache.pdfbox.contentstream.PDFStreamEngine.showGlyph(PDFStreamEngine.java:838)
> at org.apache.pdfbox.contentstream.PDFStreamEngine.showText(PDFStreamEngine.java:776)
> at org.apache.pdfbox.contentstream.PDFStreamEngine.showTextStrings(PDFStreamEngine.java:681)
> at org.apache.pdfbox.contentstream.operator.text.ShowTextAdjusted.process(ShowTextAdjusted.java:53)
> at org.apache.pdfbox.contentstream.PDFStreamEngine.processOperator(PDFStreamEngine.java:966)
> at org.apache.pdfbox.contentstream.PDFStreamEngine.processStreamOperators(PDFStreamEngine.java:541)
> at org.apache.pdfbox.contentstream.PDFStreamEngine.processStream(PDFStreamEngine.java:516)
> at org.apache.pdfbox.contentstream.PDFStreamEngine.processPage(PDFStreamEngine.java:155)
> at org.apache.pdfbox.text.LegacyPDFStreamEngine.processPage(LegacyPDFStreamEngine.java:155)
> at org.apache.pdfbox.text.PDFTextStripper.processPage(PDFTextStripper.java:363)
> at org.apache.pdfbox.text.PDFTextStripper.processPages(PDFTextStripper.java:291)
> at org.apache.pdfbox.text.PDFTextStripper.writeText(PDFTextStripper.java:238)
> at org.apache.pdfbox.text.PDFTextStripper.getText(PDFTextStripper.java:202){code}
> Unfortunately I cannot provide pdf for privacy reason (and I don't have it anyway), Looking at the code, it suggests that even if the glyphIdToCharacterCode is null, it's still possible that glyphIdToCharacerCode.length gets evaluated
>
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