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https://issues.apache.org/jira/browse/PDFBOX-4242?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16532999#comment-16532999
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ASF subversion and git services commented on PDFBOX-4242:
---------------------------------------------------------
Commit 1835077 from til...@apache.org in branch 'pdfbox/branches/2.0'
[ https://svn.apache.org/r1835077 ]
PDFBOX-4242: register fonts and close them when closing the document to avoid
memory leaks
> Fontbox does not close file descriptor when loading fonts.
> ----------------------------------------------------------
>
> Key: PDFBOX-4242
> URL: https://issues.apache.org/jira/browse/PDFBOX-4242
> Project: PDFBox
> Issue Type: Bug
> Components: FontBox
> Affects Versions: 2.0.9
> Reporter: Glen Peterson
> Priority: Minor
> Labels: file_leak
>
> My app has been getting "java.io.FileNotFoundException (No file descriptors
> available)" and I've confirmed that it's because fontbox isn't closing it's
> file descriptors.
> In org.apache.fontbox.ttf.TTFParser there's this method:
> {{public TrueTypeFont parse(File ttfFile) throws IOException {}}
> {{ RAFDataStream raf = new RAFDataStream(ttfFile, "r");}}
> {{ try {}}
> {{ return this.parse((TTFDataStream)raf);}}
> {{ } catch (IOException var4) {}}
> {{ // close only on error (file is still being accessed later)}}
> {{ raf.close();}}
> {{ throw var4;}}
> {{}}}
> {{}}}
> I would have expected to see the close() in a finally block so that the file
> is always closed, not just on exceptions. Presumably, you can keep it in
> memory without leaving the file descriptor open?
> {{public TrueTypeFont parse(File ttfFile) throws IOException {}}
> {{ RAFDataStream raf = new RAFDataStream(ttfFile, "r");}}
> {{ try {}}
> {{ return this.parse((TTFDataStream)raf);}}
> {{ } catch (IOException var4) {}}{{ raf.close();}}
> {{ throw var4;}}
> {{ } finally {}}
> {{ raf.close();}}
> {{}}}
> {{}}}
> I tried performing this in a lazy initialization, but it blew up:
> java.lang.RuntimeException: java.io.IOException: The TrueType font null does
> not contain a 'cmap' tableCaused by: java.io.IOException: The TrueType font
> null does not contain a 'cmap' table
> at
> org.apache.fontbox.ttf.TrueTypeFont.getUnicodeCmapImpl(TrueTypeFont.java:548)
> at
> org.apache.fontbox.ttf.TrueTypeFont.getUnicodeCmapLookup(TrueTypeFont.java:528)
> at
> org.apache.fontbox.ttf.TrueTypeFont.getUnicodeCmapLookup(TrueTypeFont.java:514)
> at org.apache.fontbox.ttf.TTFSubsetter.<init>(TTFSubsetter.java:91)
> at
> org.apache.pdfbox.pdmodel.font.TrueTypeEmbedder.subset(TrueTypeEmbedder.java:321)
> at org.apache.pdfbox.pdmodel.font.PDType0Font.subset(PDType0Font.java:239)
> at org.apache.pdfbox.pdmodel.PDDocument.save(PDDocument.java:1271)
> Thoughts?
> Thanks for PDFBox - it's been really helpful!
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