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https://issues.apache.org/jira/browse/PDFBOX-3071?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14983138#comment-14983138
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Stan R commented on PDFBOX-3071:
--------------------------------
I was passing in a complete HTTP response entity's InputStream from the Apache
HTTP client, as follows:
document = PDDocument.load(httpStream);
To avoid any possible problems with chunking buffered streams, I changed the
above to:
document = PDDOcument.load(IOUtils.toByteArray(httpStream));
which flushes the entire stream to a byte array. Now, in addition to the
exception exactly like above, I am also getting a different exception while
concurrently rendering the pages of the same document I referred to in the
issue description. This is the exception:
...
WARN [15:19:33.229] [pool-3-thread-16] o.a.p.f.FlateFilter - FlateFilter:
premature end of stream due to a DataFormatException
ERROR [15:19:33.352] [pool-3-thread-16] o.a.p.p.f.PDType1CFont - Can't read
the embedded Type1C font ILCMJJ+TimesNewRomanPSMT
java.io.EOFException: null
at org.apache.fontbox.cff.DataInput.readUnsignedByte(DataInput.java:99)
~[fontbox-2.0.0-20151029.222033-1854.jar:2.0.0-SNAPSHOT]
at org.apache.fontbox.cff.CFFDataInput.readCard8(CFFDataInput.java:45)
~[fontbox-2.0.0-20151029.222033-1854.jar:2.0.0-SNAPSHOT]
at org.apache.fontbox.cff.CFFParser.readIndexData(CFFParser.java:166)
~[fontbox-2.0.0-20151029.222033-1854.jar:2.0.0-SNAPSHOT]
at org.apache.fontbox.cff.CFFParser.parseFont(CFFParser.java:393)
~[fontbox-2.0.0-20151029.222033-1854.jar:2.0.0-SNAPSHOT]
at org.apache.fontbox.cff.CFFParser.parse(CFFParser.java:115)
~[fontbox-2.0.0-20151029.222033-1854.jar:2.0.0-SNAPSHOT]
at
org.apache.pdfbox.pdmodel.font.PDType1CFont.<init>(PDType1CFont.java:101)
~[pdfbox-2.0.0-20151029.222208-1801.jar:2.0.0-SNAPSHOT]
at
org.apache.pdfbox.pdmodel.font.PDFontFactory.createFont(PDFontFactory.java:60)
[pdfbox-2.0.0-20151029.222208-1801.jar:2.0.0-SNAPSHOT]
at org.apache.pdfbox.pdmodel.PDResources.getFont(PDResources.java:123)
[pdfbox-2.0.0-20151029.222208-1801.jar:2.0.0-SNAPSHOT]
at
org.apache.pdfbox.contentstream.operator.text.SetFontAndSize.process(SetFontAndSize.java:60)
[pdfbox-2.0.0-20151029.222208-1801.jar:2.0.0-SNAPSHOT]
at
org.apache.pdfbox.contentstream.PDFStreamEngine.processOperator(PDFStreamEngine.java:811)
[pdfbox-2.0.0-20151029.222208-1801.jar:2.0.0-SNAPSHOT]
at
org.apache.pdfbox.contentstream.PDFStreamEngine.processStreamOperators(PDFStreamEngine.java:468)
[pdfbox-2.0.0-20151029.222208-1801.jar:2.0.0-SNAPSHOT]
at
org.apache.pdfbox.contentstream.PDFStreamEngine.processStream(PDFStreamEngine.java:442)
[pdfbox-2.0.0-20151029.222208-1801.jar:2.0.0-SNAPSHOT]
at
org.apache.pdfbox.contentstream.PDFStreamEngine.processPage(PDFStreamEngine.java:149)
[pdfbox-2.0.0-20151029.222208-1801.jar:2.0.0-SNAPSHOT]
at org.apache.pdfbox.rendering.PageDrawer.drawPage(PageDrawer.java:179)
[pdfbox-2.0.0-20151029.222208-1801.jar:2.0.0-SNAPSHOT]
at
org.apache.pdfbox.rendering.PDFRenderer.renderPage(PDFRenderer.java:208)
[pdfbox-2.0.0-20151029.222208-1801.jar:2.0.0-SNAPSHOT]
at
org.apache.pdfbox.rendering.PDFRenderer.renderImage(PDFRenderer.java:139)
[pdfbox-2.0.0-20151029.222208-1801.jar:2.0.0-SNAPSHOT]
at
org.apache.pdfbox.rendering.PDFRenderer.renderImage(PDFRenderer.java:68)
[pdfbox-2.0.0-20151029.222208-1801.jar:2.0.0-SNAPSHOT]
at
org.apache.pdfbox.rendering.PDFRenderer.renderImage(PDFRenderer.java:55)
[pdfbox-2.0.0-20151029.222208-1801.jar:2.0.0-SNAPSHOT]
at
com.cleverium.filltheseforms.core.pdf.AsyncPDFRenderer$RenderPDFPageTask.call(AsyncPDFRenderer.java:112)
[classes/:na]
at
com.cleverium.filltheseforms.core.pdf.AsyncPDFRenderer$RenderPDFPageTask.call(AsyncPDFRenderer.java:91)
[classes/:na]
at java.util.concurrent.FutureTask.run(FutureTask.java:262)
[na:1.7.0_79]
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
[na:1.7.0_79]
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
[na:1.7.0_79]
at java.lang.Thread.run(Thread.java:745) [na:1.7.0_79]
WARN [15:19:33.754] [pool-3-thread-16] o.a.p.p.f.FileSystemFontProvider -
New fonts found, font cache will be re-built
WARN [15:19:33.754] [pool-3-thread-16] o.a.p.p.f.FileSystemFontProvider -
Building font cache, this may take a while
...
Using the byte array should preclude any issues with the implementation of the
input stream, right?
Another maybe relevant observation is that, I think, every time this exception
occurs I get the log entry about font caching being rebuilt.
> Possible thread safety issue RE: Can't read the embedded Type1C font
> ILCMJJ+TimesNewRomanPSMT
> ---------------------------------------------------------------------------------------------
>
> Key: PDFBOX-3071
> URL: https://issues.apache.org/jira/browse/PDFBOX-3071
> Project: PDFBox
> Issue Type: Bug
> Components: FontBox
> Affects Versions: 2.0.0
> Environment: JDK 1.7.0_79 on RHEL7 x86_64
> Reporter: Stan R
> Attachments: PDFBOX-3071.pdf
>
>
> Further testing reveals that this specific error crops up randomly, and
> sometimes simultaneously, while rendering multiple pages from the same
> document concurrently. Possibly a thread safety issue with Fontbox?
> The rendering happens inside a batch of Callable's running inside a 32-thread
> Executor. The code snippet from inside the body of the Callable.call() is
> really trivial:
> ...
> PDFRenderer renderer = new PDFRenderer(document); // referring to the same
> document object
> BufferedImage image = renderer.renderImage(pageIdx); // exception thrown from
> here
> ...
> ===== ORIGINAL ISSUE REPORT FOLLOWS ====
> Got an exception when rendering page 2 of the file.
> The file shows up fine in evince and pdfjs; it appears to be the same font
> as everywhere else in the file (but I haven't looked inside the PDF).
> The exception is listed below:
> WARN [11:19:10.057] [pool-3-thread-3] o.a.p.f.FlateFilter - FlateFilter:
> premature end of stream due to a DataFormatException
> ERROR [11:19:10.073] [pool-3-thread-3] o.a.p.p.f.PDType1CFont - Can't read
> the embedded Type1C font ILCMJJ+TimesNewRomanPSMT
> java.io.IOException: illegal offset value 8238 in CFF font
> at org.apache.fontbox.cff.CFFParser.readIndexData(CFFParser.java:158)
> ~[fontbox-2.0.0-20151027.193416-1850.jar:2.0.0-SNAPSHOT]
> at org.apache.fontbox.cff.CFFParser.parseFont(CFFParser.java:393)
> ~[fontbox-2.0.0-20151027.193416-1850.jar:2.0.0-SNAPSHOT]
> at org.apache.fontbox.cff.CFFParser.parse(CFFParser.java:115)
> ~[fontbox-2.0.0-20151027.193416-1850.jar:2.0.0-SNAPSHOT]
> at
> org.apache.pdfbox.pdmodel.font.PDType1CFont.<init>(PDType1CFont.java:101)
> ~[pdfbox-2.0.0-20151027.193546-1797.jar:2.0.0-SNAPSHOT]
> at
> org.apache.pdfbox.pdmodel.font.PDFontFactory.createFont(PDFontFactory.java:60)
> [pdfbox-2.0.0-20151027.193546-1797.jar:2.0.0-SNAPSHOT]
> at org.apache.pdfbox.pdmodel.PDResources.getFont(PDResources.java:123)
> [pdfbox-2.0.0-20151027.193546-1797.jar:2.0.0-SNAPSHOT]
> at
> org.apache.pdfbox.contentstream.operator.text.SetFontAndSize.process(SetFontAndSize.java:60)
> [pdfbox-2.0.0-20151027.193546-1797.jar:2.0.0-SNAPSHOT]
> at
> org.apache.pdfbox.contentstream.PDFStreamEngine.processOperator(PDFStreamEngine.java:811)
> [pdfbox-2.0.0-20151027.193546-1797.jar:2.0.0-SNAPSHOT]
> at
> org.apache.pdfbox.contentstream.PDFStreamEngine.processStreamOperators(PDFStreamEngine.java:468)
> [pdfbox-2.0.0-20151027.193546-1797.jar:2.0.0-SNAPSHOT]
> at
> org.apache.pdfbox.contentstream.PDFStreamEngine.processStream(PDFStreamEngine.java:442)
> [pdfbox-2.0.0-20151027.193546-1797.jar:2.0.0-SNAPSHOT]
> at
> org.apache.pdfbox.contentstream.PDFStreamEngine.processPage(PDFStreamEngine.java:149)
> [pdfbox-2.0.0-20151027.193546-1797.jar:2.0.0-SNAPSHOT]
> at org.apache.pdfbox.rendering.PageDrawer.drawPage(PageDrawer.java:179)
> [pdfbox-2.0.0-20151027.193546-1797.jar:2.0.0-SNAPSHOT]
> at
> org.apache.pdfbox.rendering.PDFRenderer.renderPage(PDFRenderer.java:208)
> [pdfbox-2.0.0-20151027.193546-1797.jar:2.0.0-SNAPSHOT]
> at
> org.apache.pdfbox.rendering.PDFRenderer.renderImage(PDFRenderer.java:139)
> [pdfbox-2.0.0-20151027.193546-1797.jar:2.0.0-SNAPSHOT]
> at
> org.apache.pdfbox.rendering.PDFRenderer.renderImage(PDFRenderer.java:68)
> [pdfbox-2.0.0-20151027.193546-1797.jar:2.0.0-SNAPSHOT]
> at
> org.apache.pdfbox.rendering.PDFRenderer.renderImage(PDFRenderer.java:55)
> [pdfbox-2.0.0-20151027.193546-1797.jar:2.0.0-SNAPSHOT]
> at
> com.example.core.pdf.AsyncPDFRenderer$RenderPDFPageTask.call(AsyncPDFRenderer.java:109)
> [classes/:na]
> at
> com.example.core.pdf.AsyncPDFRenderer$RenderPDFPageTask.call(AsyncPDFRenderer.java:90)
> [classes/:na]
> at java.util.concurrent.FutureTask.run(FutureTask.java:262)
> [na:1.7.0_79]
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
> [na:1.7.0_79]
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
> [na:1.7.0_79]
> at java.lang.Thread.run(Thread.java:745) [na:1.7.0_79]
> WARN [11:19:10.350] [pool-3-thread-3] o.a.p.p.f.FileSystemFontProvider -
> New fonts found, font cache will be re-built
> WARN [11:19:10.350] [pool-3-thread-3] o.a.p.p.f.FileSystemFontProvider -
> Building font cache, this may take a while
> ...
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