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https://issues.apache.org/jira/browse/PDFBOX-3162?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15069469#comment-15069469
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Philip Helger commented on PDFBOX-3162:
---------------------------------------
I've tried to track this problem down and it seems hard to verify. While
testing on Windows 7 it was not possible to reproduce this problem even when
creating more than 10.000 PDFs using the same logic.
The problem only occurs on a Linux machine:
3.0.101-65-default #1 SMP Mon Sep 7 19:21:52 UTC 2015 (bef9feb) x86_64 x86_64
x86_64 GNU/Linux
java version "1.8.0_40"
Java(TM) SE Runtime Environment (build 1.8.0_40-b25)
Java HotSpot(TM) 64-Bit Server VM (build 25.40-b25, mixed mode)
> IllegalStateException in TTFSubsetter
> -------------------------------------
>
> Key: PDFBOX-3162
> URL: https://issues.apache.org/jira/browse/PDFBOX-3162
> Project: PDFBox
> Issue Type: Bug
> Components: FontBox
> Affects Versions: 2.0.0
> Environment: 2.0.0-RC2
> Reporter: Philip Helger
>
> Hi encountered a rare exception with an empty TTF subset:
> {code}
> ==> [1] caused by java.lang.IllegalStateException: subset is empty
> 1.: org.apache.fontbox.ttf.TTFSubsetter.writeToStream(TTFSubsetter.java:921)
> 2.:
> org.apache.pdfbox.pdmodel.font.TrueTypeEmbedder.subset(TrueTypeEmbedder.java:304)
> 3.: org.apache.pdfbox.pdmodel.font.PDType0Font.subset(PDType0Font.java:162)
> 4.: org.apache.pdfbox.pdmodel.PDDocument.save(PDDocument.java:1102)
> 5.: com.helger.pdflayout.PageLayoutPDF.renderTo(PageLayoutPDF.java:276)
> {code}
> Unfortunately I don't know yet what was causing the problem, but I will
> provide you with more details on Monday (if necessary).
> If there is nothing to subset - I think the call should simply be ignored???
> Or maybe this is a problem because of the "uni" name bug (in 2.0.0-RC2) I
> reopened lately?
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