[FOP-3062] AssertionError in GlyphPositioningTable$DeviceTable with SFArabic.ttf

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.7
• Fix Version/s: 2.8
• Component/s: unqualified
• Assignee: Simon Steiner
• Reporter: Richard Zowalla
• Created: 08/Apr/22 09:10
• Updated: 09/Jun/22 09:54
• Resolved: 09/Jun/22 09:54

Description

While working on a M1 Mac OS system:

 

Java version: 17.0.2, vendor: Oracle Corporation, runtime: 

/Library/Java/JavaVirtualMachines/jdk-17.0.2.jdk/Contents/HomeDefault locale: de_DE, platform encoding: UTF-8

OS name: "mac os x", version: "12.3", arch: "aarch64", family: "mac"

I get the following AssertionError with a simple FOP config as follows:

<fop version="1.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
     xsi:noNamespaceSchemaLocation="http://svn.apache.org/viewvc/xmlgraphics/fop/trunk/src/foschema/fop-configuration.xsd?view=co">

    <!-- Renderer -->

    <renderers>        <!-- PDF Renderer -->

        <renderer mime="application/pdf">            <!-- Filter -->
            <filterList>
                <value>null</value>
            </filterList>
            <!-- Filter Image Settings-->
            <filterList type="image">
                <value>flate</value>
                <value>ascii-85</value>
            </filterList>

            <!-- Font Configuration -->
            <fonts>                <!-- <auto-detect/> -->
                <directory>/Users/abc/uploads/fonts</directory>
            </fonts>

        </renderer>
    </renderers>
    <fonts>
        <!-- <auto-detect/> -->
        <directory>/Users/abc/uploads/fonts</directory>
    </fonts>
</fop> 

The font, which violates the assertion in DeviceTable is:

*file:/System/Library/Fonts/SFArabic.ttf*

 

Stacktrace:

java.lang.AssertionError at org.apache.fop.complexscripts.fonts.GlyphPositioningTable$DeviceTable.<init>(GlyphPositioningTable.java:1774) at org.apache.fop.complexscripts.fonts.OTFAdvancedTypographicTableReader.readPosDeviceTable(OTFAdvancedTypographicTableReader.java:1727) at org.apache.fop.complexscripts.fonts.OTFAdvancedTypographicTableReader.readPosAnchor(OTFAdvancedTypographicTableReader.java:2051) at org.apache.fop.complexscripts.fonts.OTFAdvancedTypographicTableReader.readMarkToLigaturePosTableFormat1(OTFAdvancedTypographicTableReader.java:2345) at org.apache.fop.complexscripts.fonts.OTFAdvancedTypographicTableReader.readMarkToLigaturePosTable(OTFAdvancedTypographicTableReader.java:2371) at org.apache.fop.complexscripts.fonts.OTFAdvancedTypographicTableReader.readGPOSSubtable(OTFAdvancedTypographicTableReader.java:3122) at org.apache.fop.complexscripts.fonts.OTFAdvancedTypographicTableReader.readLookupTable(OTFAdvancedTypographicTableReader.java:3191) at org.apache.fop.complexscripts.fonts.OTFAdvancedTypographicTableReader.readLookupList(OTFAdvancedTypographicTableReader.java:3218) at org.apache.fop.complexscripts.fonts.OTFAdvancedTypographicTableReader.readCommonLayoutTables(OTFAdvancedTypographicTableReader.java:3239) at org.apache.fop.complexscripts.fonts.OTFAdvancedTypographicTableReader.readGPOS(OTFAdvancedTypographicTableReader.java:3499) at org.apache.fop.complexscripts.fonts.OTFAdvancedTypographicTableReader.readAll(OTFAdvancedTypographicTableReader.java:84) at org.apache.fop.fonts.truetype.OpenFont.handleCharacterSpacing(OpenFont.java:889) at org.apache.fop.fonts.truetype.OpenFont.readFont(OpenFont.java:861) at org.apache.fop.fonts.truetype.OFFontLoader.read(OFFontLoader.java:119) at org.apache.fop.fonts.truetype.OFFontLoader.read(OFFontLoader.java:103) at org.apache.fop.fonts.FontLoader.getFont(FontLoader.java:126) at org.apache.fop.fonts.FontLoader.loadFont(FontLoader.java:110) at org.apache.fop.fonts.autodetect.FontInfoFinder.find(FontInfoFinder.java:253) at org.apache.fop.fonts.FontAdder.add(FontAdder.java:63) at org.apache.fop.fonts.FontDetectorFactory$DefaultFontDetector.detect(FontDetectorFactory.java:105) at org.apache.fop.fonts.FontManager.autoDetectFonts(FontManager.java:229) at org.apache.fop.fonts.DefaultFontConfigurator.configure(DefaultFontConfigurator.java:82) at org.apache.fop.render.PrintRendererConfigurator.getCustomFontCollection(PrintRendererConfigurator.java:147) at org.apache.fop.render.PrintRendererConfigurator.setupFontInfo(PrintRendererConfigurator.java:127) at org.apache.fop.render.intermediate.IFUtil.setupFonts(IFUtil.java:170) at org.apache.fop.render.intermediate.IFRenderer.setupFontInfo(IFRenderer.java:187) at org.apache.fop.area.RenderPagesModel.<init>(RenderPagesModel.java:75) at org.apache.fop.area.AreaTreeHandler.setupModel(AreaTreeHandler.java:135) at org.apache.fop.area.AreaTreeHandler.<init>(AreaTreeHandler.java:105) at org.apache.fop.render.RendererFactory.createFOEventHandler(RendererFactory.java:363) at org.apache.fop.fo.FOTreeBuilder.<init>(FOTreeBuilder.java:109) at org.apache.fop.apps.Fop.createDefaultHandler(Fop.java:104) at org.apache.fop.apps.Fop.<init>(Fop.java:78) at org.apache.fop.apps.FOUserAgent.newFop(FOUserAgent.java:184) at org.apache.fop.apps.FopFactory.newFop(FopFactory.java:234)