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https://issues.apache.org/jira/browse/PDFBOX-3377?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15361559#comment-15361559
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BFortin commented on PDFBOX-3377:
---------------------------------
We are experiencing the same issue on AIX 7.1.0.0 (7100-03-05-1524). Our WAS
servers are leaking threads every time this issue occurs.
AIX does come with a few non-font files under
/usr/X11R6/lib/X11/fonts/TrueType/, such as the one mentioned previously by
[~gerosyab] (i.e. fonts.alias.ttf).
These files are owned by AIX and are there by default, so deleting them or
moving them is not a clean work-around, as it might cause issues with other
applications. Also, I guess that patching the OS later down the line might copy
back the files to their original location.
Shouldn't PDFBox validate the actual content of the file before trying to load
it (ref.
http://stackoverflow.com/questions/2729038/is-there-a-java-library-equivalent-to-file-command-in-unix)
and/or skip the file if it's not a valid font file?
> font caching never stops in AIX
> -------------------------------
>
> Key: PDFBOX-3377
> URL: https://issues.apache.org/jira/browse/PDFBOX-3377
> Project: PDFBox
> Issue Type: Bug
> Components: Rendering
> Affects Versions: 2.0.2
> Environment: - OS : AIX Version 6.1
> - JVM : Java(TM) SE Runtime Environment (build
> pap6460sr10fp1-20120321_01(SR10 FP1))
> IBM J9 VM (build 2.4, JRE 1.6.0 IBM J9 2.4 AIX ppc64-64
> jvmap6460sr10fp1-20120202_101568 (JIT enabled, AOT enabled)
> - Web Application base on Spring Framework 3.1
> Reporter: Donghe Youn
> Attachments: 68de07fa7ca17b70ec7172c2556bd148-be32d4.cache-3,
> 9d6f1acc9ed66d78bb8add084e50806e-be32d4.cache-3,
> fea7b2ab5b2729f392c3a28e504125e0-be32d4.cache-3, pdfbox377219359369560029tmp
>
>
> I'm trying to convert PDF to Image.
> When I call PDFRenderer.renderImage(), the log message like belows appears.
> {noformat}
> WARN(FileSystemFontProvider.java)[2016-06-10 10:44:39,969]-New fonts found,
> font cache will be re-built
> WARN(FileSystemFontProvider.java)[2016-06-10 10:44:39,969]-Building on-disk
> font cache, this may take a while
> {noformat}
> It never stops. No response or change since those message appears.
> I can't attach font cache file because I don't know where it is located.
> + I attached pdfbox tmp file "pdfbox377219359369560029tmp" that I found in
> /tmp/ directory.
> tail of the file is like belows
> {noformat}
> <?xpacket begin="癤? id="W5M0MpCehiHzreSzNTczkc9d"?><x:xmpmeta
> xmlns:x="adobe:ns:meta/" x:xmptk="Adobe XMP Core 4.0-c316 44.253921, Sun Oct
> 01 2006 17:14:39"><rdf:RDF
> xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#";><rdf:Description
> rdf:about=""
> xmlns:pdf="http://ns.adobe.com/pdf/1.3/";><pdf:PDFVersion>1.4</pdf:PDFVersion><pdf:Producer>Hancom
> PDF 1.3.0.480</pdf:Producer></rdf:Description><rdf:Description rdf:about=""
> xmlns:xap="http://ns.adobe.com/xap/1.0/";><xap:CreatorTool>Hancom PDF
> 1.3.0.480</xap:CreatorTool><xap:CreateDate>2016-05-24T18:54:06+09:00</xap:CreateDate><xap:ModifyDate>2016-05-24T18:54:06+09:00</xap:ModifyDate><xap:MetadataDate>2016-05-24T18:54:06+09:00</xap:MetadataDate></rdf:Description><rdf:Description
> rdf:about=""
> xmlns:dc="http://purl.org/dc/elements/1.1/";><dc:format>application/pdf</dc:format><dc:title><rdf:Seq><rdf:li>李⑥꽭?
> ??숉넻?⑹젙蹂댁떆?ㅽ뀥
> 援ъ텞?ъ뾽</rdf:li></rdf:Seq></dc:title><dc:date><rdf:Seq><rdf:li>2016-05-24T18:54:06+09:00</rdf:li></rdf:Seq></dc:date></rdf:Description><rdf:Description
> rdf:about=""
> xmlns:xapMM="http://ns.adobe.com/xap/1.0/mm/";><xapMM:DocumentID>43D906A6-241D-4E39-B165-0418769B224B</xapMM:DocumentID><xapMM:InstanceID>uuid:4AB60C4F-752D-4C5C-B438-65F54D57FDF1</xapMM:InstanceID></rdf:Description><rdf:Description
> rdf:about="" xmlns:pdfaid="http://www.aiim.org/pdfa/ns/id/";>
> <pdfaid:part>1</pdfaid:part>
> <pdfaid:conformance>B</pdfaid:conformance>
> </rdf:Description></rdf:RDF></x:xmpmeta><?xpacket end="w"?>
> {noformat}
> + I also attached three files found from $USER_HOME/.fontconfig directory
> which seem to be font cache files.
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