Tilman Hausherr created PDFBOX-5727:
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Summary: Font operation takes a long time with 3.0.1
Key: PDFBOX-5727
URL: https://issues.apache.org/jira/browse/PDFBOX-5727
Project: PDFBox
Issue Type: Bug
Affects Versions: 3.0.1 PDFBox, 2.0.30
Reporter: Tilman Hausherr
Assignee: Tilman Hausherr
Fix For: 2.0.31, 3.0.2 PDFBox, 4.0.0
Kjetil Ødegaard on the users mailing list reported that the start of PDFBox
takes a long time during font collection and that two fonts that fail are tried
every time. He produced a stack trace of an exception that is caught:
{noformat}
java.io.EOFException
at
org.apache.fontbox.ttf.TTFDataStream.readUnsignedShort(TTFDataStream.java:154)
at
org.apache.fontbox.ttf.TTFDataStream.readUnsignedShortArray(TTFDataStream.java:188)
at
org.apache.fontbox.ttf.GlyphSubstitutionTable.readMultipleSubstitutionSubtable(GlyphSubstitutionTable.java:412)
at
org.apache.fontbox.ttf.GlyphSubstitutionTable.readLookupSubtable(GlyphSubstitutionTable.java:263)
at
org.apache.fontbox.ttf.GlyphSubstitutionTable.readLookupTable(GlyphSubstitutionTable.java:313)
at
org.apache.fontbox.ttf.GlyphSubstitutionTable.readLookupList(GlyphSubstitutionTable.java:247)
at
org.apache.fontbox.ttf.GlyphSubstitutionTable.read(GlyphSubstitutionTable.java:102)
at org.apache.fontbox.ttf.TrueTypeFont.readTable(TrueTypeFont.java:365)
at org.apache.fontbox.ttf.TTFParser.parseTables(TTFParser.java:165)
at org.apache.fontbox.ttf.TTFParser.parse(TTFParser.java:144)
at
org.apache.fontbox.ttf.TrueTypeCollection.getFontAtIndex(TrueTypeCollection.java:127)
at
org.apache.fontbox.ttf.TrueTypeCollection.processAllFonts(TrueTypeCollection.java:109)
at
org.apache.pdfbox.pdmodel.font.FileSystemFontProvider.addTrueTypeCollection(FileSystemFontProvider.java:665)
at
org.apache.pdfbox.pdmodel.font.FileSystemFontProvider.scanFonts(FileSystemFontProvider.java:396)
at
org.apache.pdfbox.pdmodel.font.FileSystemFontProvider.<init>(FileSystemFontProvider.java:367)
at
org.apache.pdfbox.pdmodel.font.FontMapperImpl$DefaultFontProvider.<clinit>(FontMapperImpl.java:139)
at
org.apache.pdfbox.pdmodel.font.FontMapperImpl.getProvider(FontMapperImpl.java:158)
at
org.apache.pdfbox.pdmodel.font.FontMapperImpl.findFont(FontMapperImpl.java:416)
at
org.apache.pdfbox.pdmodel.font.FontMapperImpl.findFontBoxFont(FontMapperImpl.java:379)
at
org.apache.pdfbox.pdmodel.font.FontMapperImpl.getFontBoxFont(FontMapperImpl.java:353)
at org.apache.pdfbox.pdmodel.font.PDType1Font.<init>(PDType1Font.java:127)
{noformat}
I have a theory why it happens, which is that addTrueTypeCollection() does not
add the font as "*skipexception*" to the cache file because it's not done in
the exception handler.
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