https://bz.apache.org/bugzilla/show_bug.cgi?id=69923

            Bug ID: 69923
           Summary: NPE in PackagePart.getInputStream()
           Product: POI
           Version: unspecified
          Hardware: PC
            Status: NEW
          Severity: normal
          Priority: P2
         Component: XSSF
          Assignee: [email protected]
          Reporter: [email protected]
  Target Milestone: ---

java.lang.NullPointerException: Cannot invoke
"org.apache.poi.openxml4j.opc.PackagePart.getInputStream()" because "part" is
null
        at
org.apache.poi.xssf.model.CommentsTable.<init>(CommentsTable.java:79)
        at
org.apache.poi.xssf.eventusermodel.XSSFReader$SheetIterator.parseComments(XSSFReader.java:452)
        at
org.apache.poi.xssf.eventusermodel.XSSFReader$SheetIterator.getSheetComments(XSSFReader.java:441)
        at
org.apache.tika.parser.microsoft.ooxml.XSSFExcelExtractorDecorator.buildXHTML(XSSFExcelExtractorDecorator.java:164)
        at
org.apache.tika.parser.microsoft.ooxml.AbstractOOXMLExtractor.getXHTML(AbstractOOXMLExtractor.java:143)
        at
org.apache.tika.parser.microsoft.ooxml.XSSFExcelExtractorDecorator.getXHTML(XSSFExcelExtractorDecorator.java:130)
        at
org.apache.tika.parser.microsoft.ooxml.OOXMLExtractorFactory.parse(OOXMLExtractorFactory.java:205)
        at
org.apache.tika.parser.microsoft.ooxml.OOXMLParser.parse(OOXMLParser.java:117)
        at
org.apache.tika.parser.CompositeParser.parse(CompositeParser.java:298)

IMHO all that needs to be done in XSSFReader is to change


PackagePart commentsPart = sheetPkg.getPackage().getPart(commentsName);
return parseComments(commentsPart);

to

PackagePart commentsPart = sheetPkg.getPackage().getPart(commentsName);
if (commentsPart == null)
    return null;
return parseComments(commentsPart);

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