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https://issues.apache.org/jira/browse/PDFBOX-4965?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17201584#comment-17201584
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Dennis Noordsij commented on PDFBOX-4965:
-----------------------------------------
java.lang.StackOverflowError
at java.util.HashMap.putVal(HashMap.java:629)
at java.util.HashMap.put(HashMap.java:612)
at java.util.HashSet.add(HashSet.java:220)
at org.apache.pdfbox.util.SmallMap.entrySet(SmallMap.java:383)
at org.apache.pdfbox.cos.COSDictionary.entrySet(COSDictionary.java:1398)
at
org.apache.pdfbox.multipdf.PDFCloneUtility.cloneForNewDocument(PDFCloneUtility.java:142)
at
org.apache.pdfbox.multipdf.PDFCloneUtility.cloneForNewDocument(PDFCloneUtility.java:109)
> Stack overflow in PDFCloneUtility
> ---------------------------------
>
> Key: PDFBOX-4965
> URL: https://issues.apache.org/jira/browse/PDFBOX-4965
> Project: PDFBox
> Issue Type: Bug
> Components: Utilities
> Affects Versions: 2.0.21
> Environment: FreeBSD
> Reporter: Dennis Noordsij
> Priority: Major
>
> My production system crashed with the following trace:
> java.lang.StackOverflowError
> at java.util.HashMap.hash(HashMap.java:339)
> at java.util.HashMap.get(HashMap.java:557)
> at
> org.apache.pdfbox.multipdf.PDFCloneUtility.cloneForNewDocument(PDFCloneUtility.java:81)
> at
> org.apache.pdfbox.multipdf.PDFCloneUtility.cloneForNewDocument(PDFCloneUtility.java:146)
> at
> org.apache.pdfbox.multipdf.PDFCloneUtility.cloneForNewDocument(PDFCloneUtility.java:109)
> at
> org.apache.pdfbox.multipdf.PDFCloneUtility.cloneForNewDocument(PDFCloneUtility.java:146)
> at
> org.apache.pdfbox.multipdf.PDFCloneUtility.cloneForNewDocument(PDFCloneUtility.java:109)
> at
> org.apache.pdfbox.multipdf.PDFCloneUtility.cloneForNewDocument(PDFCloneUtility.java:146)
> (repeated)
>
> We do a lot with PDF files and I don't have the actual PDF or action which
> caused this at the moment, but perhaps this already rings a bell with someone
> of what kind of bug this could be or wether I am doing something strange?
>
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