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https://issues.apache.org/jira/browse/TIKA-2862?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16839640#comment-16839640
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Sergey Beryozkin commented on TIKA-2862:
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See https://github.com/apache/pdfbox/pull/69
> Make PDF Parser GraalVM native mode ready
> ------------------------------------------
>
> Key: TIKA-2862
> URL: https://issues.apache.org/jira/browse/TIKA-2862
> Project: Tika
> Issue Type: Improvement
> Components: parser
> Affects Versions: 1.20
> Reporter: Sergey Beryozkin
> Assignee: Sergey Beryozkin
> Priority: Major
>
> PDF Parser is not Graal native mode ready yet, the following is reported when
> it is processed as part of Quarkus native mode build:
> {noformat}
> Error: Detected a FileDescriptor in the image heap. ....You can manually
> delay class initialization to image run time by using the option
> --delay-class-initialization-to-runtime=<class-name>. ...
> Detailed message:
> Trace: object org.apache.fontbox.ttf.BufferedRandomAccessFile
> object org.apache.fontbox.ttf.RAFDataStream
> object org.apache.fontbox.ttf.TrueTypeFont
> object org.apache.pdfbox.pdmodel.font.PDType1Font
> method
> org.apache.pdfbox.pdmodel.interactive.form.PDAcroForm.verifyOrCreateDefaults()
> Call path from entry point to
> org.apache.pdfbox.pdmodel.interactive.form.PDAcroForm.verifyOrCreateDefaults():
>
> at
> org.apache.pdfbox.pdmodel.interactive.form.PDAcroForm.verifyOrCreateDefaults(PDAcroForm.java:106)
> at
> org.apache.pdfbox.pdmodel.interactive.form.PDAcroForm.<init>(PDAcroForm.java:93)
> at
> org.apache.pdfbox.pdmodel.PDDocumentCatalog.getAcroForm(PDDocumentCatalog.java:108)
> at org.apache.tika.parser.pdf.PDFParser.handleXFAOnly(PDFParser.java:534)
> at org.apache.tika.parser.pdf.PDFParser.parse(PDFParser.java:164)
> {noformat}
> See also
> [https://medium.com/graalvm/understanding-class-initialization-in-graalvm-native-image-generation-d765b7e4d6ed]
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