[jira] [Commented] (PDFBOX-1756) ClassCastException CosString cannot be cast to COSName

[Tilman Hausherr (JIRA)]

    [ 
https://issues.apache.org/jira/browse/PDFBOX-1756?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14000649#comment-14000649
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Tilman Hausherr commented on PDFBOX-1756:
-----------------------------------------

It doesn't happen with the non sequential parser, but it happens when saving 
that file:
{code}
Exception in thread "main" java.lang.ClassCastException: 
org.apache.pdfbox.cos.COSString cannot be cast to org.apache.pdfbox.cos.COSName
        at 
org.apache.pdfbox.pdfwriter.COSWriter.doWriteObject(COSWriter.java:519)
        at org.apache.pdfbox.pdfwriter.COSWriter.doWriteBody(COSWriter.java:449)
        at 
org.apache.pdfbox.pdfwriter.COSWriter.visitFromDocument(COSWriter.java:1099)
        at org.apache.pdfbox.cos.COSDocument.accept(COSDocument.java:555)
        at org.apache.pdfbox.pdfwriter.COSWriter.write(COSWriter.java:1364)
        at org.apache.pdfbox.pdmodel.PDDocument.save(PDDocument.java:1238)
        at org.apache.pdfbox.pdmodel.PDDocument.save(PDDocument.java:1220)
        at pdfboxpageimageextraction.ExtractImages.doPdf(ExtractImages.java:455)
        at pdfboxpageimageextraction.ExtractImages.main(ExtractImages.java:189)
{code}

> ClassCastException CosString cannot be cast to COSName
> ------------------------------------------------------
>
>                 Key: PDFBOX-1756
>                 URL: https://issues.apache.org/jira/browse/PDFBOX-1756
>             Project: PDFBox
>          Issue Type: Bug
>          Components: Parsing
>    Affects Versions: 1.8.2
>         Environment: Ubuntu Linux & Windows 7 (both JDK6)
>            Reporter: William Palmer
>            Priority: Minor
>         Attachments: testPDF_twoAuthors.pdf
>
>
> Opening and saving a PDF causes this exception in 1.8.2:
> Exception in thread "main" java.lang.ClassCastException: 
> org.apache.pdfbox.cos.COSString cannot be cast to 
> org.apache.pdfbox.cos.COSName
>       at 
> org.apache.pdfbox.pdfwriter.COSWriter.doWriteObject(COSWriter.java:507)
>       at org.apache.pdfbox.pdfwriter.COSWriter.doWriteBody(COSWriter.java:435)
>       at 
> org.apache.pdfbox.pdfwriter.COSWriter.visitFromDocument(COSWriter.java:1122)
>       at org.apache.pdfbox.cos.COSDocument.accept(COSDocument.java:552)
>       at org.apache.pdfbox.pdfwriter.COSWriter.write(COSWriter.java:1501)
>       at org.apache.pdfbox.pdmodel.PDDocument.save(PDDocument.java:1324)
>       at org.apache.pdfbox.pdmodel.PDDocument.save(PDDocument.java:1305)
> The PDF is here: 
> http://digitalcorpora.org/corp/nps/files/govdocs1/008/008677.pdf
> Code to reproduce the exception:
> PDFParser parser = new PDFParser(new FileInputStream(new File("008677.pdf")));
> parser.parse();
> File temp = File.createTempFile("temp-", ".pdf");
> parser.getPDDocument().save(temp);
> parser.getDocument().close();



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