[
https://issues.apache.org/jira/browse/PDFBOX-2574?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Tilman Hausherr updated PDFBOX-2574:
------------------------------------
Attachment: PDFBOX-2574-recursion_unc.pdf
PDFBOX-2574-recursion.pdf
> StackOverflowError in PDFMerger with file that has recursion
> ------------------------------------------------------------
>
> Key: PDFBOX-2574
> URL: https://issues.apache.org/jira/browse/PDFBOX-2574
> Project: PDFBox
> Issue Type: Bug
> Components: Utilities
> Affects Versions: 1.8.8, 2.0.0
> Reporter: Tilman Hausherr
> Attachments: PDFBOX-2574-recursion.pdf, PDFBOX-2574-recursion_unc.pdf
>
>
> The attached file brings an exception when merging it with itself or with
> another file:
> {code}
> Exception in thread "main" java.lang.StackOverflowError
> at
> java.util.LinkedHashMap$LinkedHashIterator.<init>(LinkedHashMap.java:366)
> at
> java.util.LinkedHashMap$LinkedHashIterator.<init>(LinkedHashMap.java:366)
> at java.util.LinkedHashMap$EntryIterator.<init>(LinkedHashMap.java:412)
> at java.util.LinkedHashMap$EntryIterator.<init>(LinkedHashMap.java:412)
> at java.util.LinkedHashMap.newEntryIterator(LinkedHashMap.java:419)
> at java.util.HashMap$EntrySet.iterator(HashMap.java:1082)
> at
> org.apache.pdfbox.pdfwriter.COSWriter.visitFromDictionary(COSWriter.java:1016)
> at
> org.apache.pdfbox.pdfwriter.COSWriter.visitFromDictionary(COSWriter.java:1043)
> {code}
> The file has a reference to itself in the resources. The problem is in an
> object stream:
> 21 0 22 166 23 339 24 1378 25 1548 26 2585 27 2750 28 3782 29 3960 30 5004
> <</Count 1/Font<</F0 23 0 R/F1 25 0 R/F2 27 0 R/F3 29 0 R>>/Kids[9 0
> R]/MediaBox[0 0 612.0 792.0]/ProcSet 30 0 R/Resources 21 0
> R/Type/Pages/XObject<</Img0 19 0 R>>>>....
> "21 0 22 166 23 339 24 1378 25 1548 26 2585 27 2750 28 3782 29 3960 30 5004"
> tells where the objects start, i.e. object 21 starts at offset 0 (after the
> table), object 22 at offset 166, etc. The problem here is that "/Resources 21
> 0 R" points to itself. This isn't the only problem with this file... that
> object is a resource, yet it does have /kids.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
