EXCEPTION_ACCESS_VIOLATION in fontmanager.so/fontmanager.dll
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Key: PDFBOX-780
URL: https://issues.apache.org/jira/browse/PDFBOX-780
Project: PDFBox
Issue Type: Bug
Environment: redhat linux rhel5 and windows xp
Reporter: Matt Davis
It seems when writing a PDF that has an invalid embedded font to an image there
is a crash in the native function sun.font.FileFont.getGlyphImage(JI). It can
be reproduced using the PDFToImage program on a pdf with an invalid embedded
font.
Turing on -Dsun.java2d.debugfonts=true on a bad pdf will show some like the
follow for the bad font
INFO: open TTF: C:\DOCUME~1\mdavis\LOCALS~1\Temp\+~JF4968602841241472406.tmp
Jul 20, 2010 11:37:31 AM sun.font.TrueTypeGlyphMapper handleBadCMAP
SEVERE: Null Cmap for ** TrueType Font: Family=INKLBC+SymbolMT
Name=INKLBC+SymbolMT style=0
fileName=C:\DOCUME~1\mdavis\LOCALS~1\Temp\+~JF4968602841241472406.tmpsubstituting
for this font
Jul 20, 2010 11:37:31 AM sun.font.FontManager deRegisterBadFont
SEVERE: Deregister bad font: ** TrueType Font: Family=INKLBC+SymbolMT
Name=INKLBC+SymbolMT style=0
fileName=C:\DOCUME~1\mdavis\LOCALS~1\Temp\+~JF4968602841241472406.tmp
Jul 20, 2010 11:37:31 AM sun.font.FileFontStrike <init>
INFO: Strike for ** TrueType Font: Family=INKLBC+SymbolMT Name=INKLBC+SymbolMT
style=0 fileName=C:\DOCUME~1\mdavis\LOCALS~1\Temp\+~JF4968602841241472406.tmp
at size = 19 use natives = false useJavaRasteriser = true AAHint = 2 Has
Embedded bitmaps = false
The following code in PDSimpleFont.java seems to fix the crash although I am
not sure if it is correct:
public void drawString(String string, Graphics g, float fontSize,
AffineTransform at, float x, float y) throws IOException {
Font _awtFont = getawtFont();
//mdavis - fix fontmanager.so/dll on
sun.font.FileFont.getGlyphImage for font with bad cmaps?
if (_awtFont.canDisplayUpTo(string) != -1) {
log.warn("Changing fonts on <" + string + "> from <" +
_awtFont.getName() + "> to default font");
_awtFont = null;
}
Graphics2D g2d = (Graphics2D) g;
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