Tilman Hausherr created PDFBOX-4219:
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Summary: Multithreading problem when rendering several documents
with Standard 14 fonts
Key: PDFBOX-4219
URL: https://issues.apache.org/jira/browse/PDFBOX-4219
Project: PDFBox
Issue Type: Bug
Components: FontBox, Rendering
Affects Versions: 2.0.9, 3.0.0 PDFBox
Environment: Windows 7
jdk1.8.0_172
Reporter: Tilman Hausherr
Attachments: 014261-p3-ccitt.pdf, 014261-p3-ccitt.pdf-1.png,
166292-fi-ligature.pdf, 166292-fi-ligature.pdf-1.png, MulithreadTest.java
I get rendering errors and sometimes exceptions in my regression tests. It is
somehow related to several threads initializing standard 14 fonts. It happens
only about every 25 times.
My theory is that one thread accesses the naming table and another accesses the
glyf table. I did try several things in the last months to avoid it, all were
unsuccessful and I lost my notes about it due to a static discharge last winter
on a KINGSTON usb stick.
Here's the output when it doesn't go well:
{noformat}
11.05.2018 10:54:26.322 WARN [pool-1-thread-4]
org.apache.pdfbox.pdmodel.font.PDType1Font:296 - Using fallback font
TimesNewRomanPS-BoldMT for Galliard-Bold
11.05.2018 10:54:26.323 WARN [pool-1-thread-2]
org.apache.pdfbox.pdmodel.font.PDType1Font:296 - Using fallback font
TimesNewRomanPS-BoldMT for Galliard-Bold
11.05.2018 10:54:26.386 WARN [pool-1-thread-2]
org.apache.pdfbox.pdmodel.font.PDType1Font:296 - Using fallback font
TimesNewRomanPSMT for Galliard-Roman
11.05.2018 10:54:26.421 WARN [pool-1-thread-4]
org.apache.pdfbox.pdmodel.font.PDType1Font:296 - Using fallback font
TimesNewRomanPSMT for Galliard-Roman
11.05.2018 10:54:26.697 WARN [pool-1-thread-2]
org.apache.pdfbox.pdmodel.font.PDType1Font:296 - Using fallback font
TimesNewRomanPS-ItalicMT for Galliard-Italic
11.05.2018 10:54:26.818 WARN [pool-1-thread-4]
org.apache.pdfbox.pdmodel.font.PDType1Font:296 - Using fallback font
TimesNewRomanPS-ItalicMT for Galliard-Italic
C:\Users\XXX\Documents\Java\PDFBox
reactor\pdfbox\src\test\resources\input\rendering\166292-fi-ligature.pdf
oh oh
C:\Users\XXX\Documents\Java\PDFBox
reactor\pdfbox\src\test\resources\input\rendering\166292-fi-ligature.pdf
oh oh
C:\Users\XXX\Documents\Java\PDFBox
reactor\pdfbox\src\test\resources\input\rendering\014261-p3-ccitt.pdf
oh oh
C:\Users\XXX\Documents\Java\PDFBox
reactor\pdfbox\src\test\resources\input\rendering\014261-p3-ccitt.pdf
oh oh
done
{noformat}
Sometimes in the past I got exceptions:
{noformat}
Exception in thread "Thread-2" java.lang.RuntimeException: java.io.IOException:
Unexpected end of TTF stream reached
at pdfboxpageimageextraction.MulithreadTest.run(MulithreadTest.java:87)
Caused by: java.io.IOException: Unexpected end of TTF stream reached
at org.apache.fontbox.ttf.TTFDataStream.read(TTFDataStream.java:274)
at
org.apache.fontbox.ttf.TTFDataStream.readString(TTFDataStream.java:91)
at org.apache.fontbox.ttf.NamingTable.read(NamingTable.java:113)
at org.apache.fontbox.ttf.TrueTypeFont.readTable(TrueTypeFont.java:373)
at org.apache.fontbox.ttf.TrueTypeFont.getTable(TrueTypeFont.java:163)
at org.apache.fontbox.ttf.TrueTypeFont.getNaming(TrueTypeFont.java:179)
at org.apache.fontbox.ttf.TrueTypeFont.getName(TrueTypeFont.java:471)
at
org.apache.pdfbox.pdmodel.font.PDType1Font.<init>(PDType1Font.java:296)
at
org.apache.pdfbox.pdmodel.font.PDFontFactory.createFont(PDFontFactory.java:62)
at org.apache.pdfbox.pdmodel.PDResources.getFont(PDResources.java:143)
at
org.apache.pdfbox.contentstream.operator.text.SetFontAndSize.process(SetFontAndSize.java:60)
at
org.apache.pdfbox.contentstream.PDFStreamEngine.processOperator(PDFStreamEngine.java:853)
at
org.apache.pdfbox.contentstream.PDFStreamEngine.processStreamOperators(PDFStreamEngine.java:506)
at
org.apache.pdfbox.contentstream.PDFStreamEngine.processStream(PDFStreamEngine.java:478)
at
org.apache.pdfbox.contentstream.PDFStreamEngine.processPage(PDFStreamEngine.java:156)
at org.apache.pdfbox.rendering.PageDrawer.drawPage(PageDrawer.java:258)
at
org.apache.pdfbox.rendering.PDFRenderer.renderImage(PDFRenderer.java:225)
at
org.apache.pdfbox.rendering.PDFRenderer.renderImageWithDPI(PDFRenderer.java:164)
{noformat}
Sometimes I get an AIOOBE:
{noformat}
Exception in thread "Thread-1" java.lang.ArrayIndexOutOfBoundsException
at
org.apache.fontbox.ttf.BufferedRandomAccessFile.read(BufferedRandomAccessFile.java:158)
at org.apache.fontbox.ttf.RAFDataStream.read(RAFDataStream.java:167)
at org.apache.fontbox.ttf.TTFDataStream.read(TTFDataStream.java:264)
at
org.apache.fontbox.ttf.TTFDataStream.readString(TTFDataStream.java:91)
at org.apache.fontbox.ttf.NamingTable.read(NamingTable.java:113)
at org.apache.fontbox.ttf.TrueTypeFont.readTable(TrueTypeFont.java:373)
at org.apache.fontbox.ttf.TrueTypeFont.getTable(TrueTypeFont.java:163)
at org.apache.fontbox.ttf.TrueTypeFont.getNaming(TrueTypeFont.java:179)
at org.apache.fontbox.ttf.TrueTypeFont.getName(TrueTypeFont.java:471)
at
org.apache.pdfbox.pdmodel.font.PDType1Font.<init>(PDType1Font.java:296)
at
org.apache.pdfbox.pdmodel.font.PDFontFactory.createFont(PDFontFactory.java:62)
at org.apache.pdfbox.pdmodel.PDResources.getFont(PDResources.java:143)
at
org.apache.pdfbox.contentstream.operator.text.SetFontAndSize.process(SetFontAndSize.java:60)
at
org.apache.pdfbox.contentstream.PDFStreamEngine.processOperator(PDFStreamEngine.java:853)
at
org.apache.pdfbox.contentstream.PDFStreamEngine.processStreamOperators(PDFStreamEngine.java:506)
at
org.apache.pdfbox.contentstream.PDFStreamEngine.processStream(PDFStreamEngine.java:478)
at
org.apache.pdfbox.contentstream.PDFStreamEngine.processPage(PDFStreamEngine.java:156)
at org.apache.pdfbox.rendering.PageDrawer.drawPage(PageDrawer.java:258)
at
org.apache.pdfbox.rendering.PDFRenderer.renderImage(PDFRenderer.java:225)
at
org.apache.pdfbox.rendering.PDFRenderer.renderImageWithDPI(PDFRenderer.java:164)
{noformat}
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