JavaFX static SDK for Android fails starting 21-ea+13

[jperedadnr]

Starting JavaFX static SDK 21-ea+13, launching an Android app fails at runtime with:

D/GraalCompiled(  977): Exception in Application start method
D/GraalCompiled(  977): Exception in thread "JavaFX Application Thread" java.lang.UnsatisfiedLinkError: com.sun.javafx.font.FontConfigManager.getFontConfig(Ljava/lang/String;[Lcom/sun/javafx/font/FontConfigManager$FcCompFont;Z)Z [symbol: Java_com_sun_javafx_font_FontConfigManager_getFontConfig or Java_com_sun_javafx_font_FontConfigManager_getFontConfig__Ljava_lang_String_2_3Lcom_sun_javafx_font_FontConfigManager_00024FcCompFont_2Z]
D/GraalCompiled(  977):         at com.oracle.svm.jni.access.JNINativeLinkage.getOrFindEntryPoint(JNINativeLinkage.java:153)
D/GraalCompiled(  977):         at com.oracle.svm.jni.JNIGeneratedMethodSupport.nativeCallAddress(JNIGeneratedMethodSupport.java:52)
D/GraalCompiled(  977):         at com.sun.javafx.font.FontConfigManager.getFontConfig(FontConfigManager.java)
D/GraalCompiled(  977):         at com.sun.javafx.font.FontConfigManager.initFontConfigLogFonts(FontConfigManager.java:159)
D/GraalCompiled(  977):         at com.sun.javafx.font.FontConfigManager.getFontConfigFont(FontConfigManager.java:268)
D/GraalCompiled(  977):         at com.sun.javafx.font.freetype.FTFactory.getFallbacks(FTFactory.java:134)
D/GraalCompiled(  977):         at com.sun.javafx.font.LogicalFont.getLinkedFonts(LogicalFont.java:214)
D/GraalCompiled(  977):         at com.sun.javafx.font.LogicalFont.getNumSlots(LogicalFont.java:223)
D/GraalCompiled(  977):         at com.sun.javafx.font.CompositeGlyphMapper.<init>(CompositeGlyphMapper.java:62)
D/GraalCompiled(  977):         at com.sun.javafx.font.LogicalFont.getGlyphMapper(LogicalFont.java:439)
D/GraalCompiled(  977):         at com.sun.javafx.text.GlyphLayout.breakRuns(GlyphLayout.java:229)
D/GraalCompiled(  977):         at com.sun.javafx.text.PrismTextLayout.buildRuns(PrismTextLayout.java:819)
D/GraalCompiled(  977):         at com.sun.javafx.text.PrismTextLayout.layout(PrismTextLayout.java:1070)
D/GraalCompiled(  977):         at com.sun.javafx.text.PrismTextLayout.ensureLayout(PrismTextLayout.java:230)
D/GraalCompiled(  977):         at com.sun.javafx.text.PrismTextLayout.getBounds(PrismTextLayout.java:256)
D/GraalCompiled(  977):         at javafx.scene.text.Text.getLogicalBounds(Text.java:432)
D/GraalCompiled(  977):         at javafx.scene.text.Text.doComputeLayoutBounds(Text.java:1137)
D/GraalCompiled(  977):         at javafx.scene.text.Text$1.doComputeLayoutBounds(Text.java:143)
D/GraalCompiled(  977):         at com.sun.javafx.scene.shape.TextHelper.computeLayoutBoundsImpl(TextHelper.java:95)

The reason for this is https://bugs.openjdk.org/browse/JDK-8246104, that added a fallback implementation that introduced the use of the FontConfigManager into the FTFactory.

FontConfigManager uses a couple of native functions, like
https://github.com/openjdk/jfx/blob/7e2c0d435a46cd4df9fa8d215f2a943d21cab7d9/modules/javafx.graphics/src/main/java/com/sun/javafx/font/FontConfigManager.java#L131

which are provided in
https://github.com/openjdk/jfx/blob/7e2c0d435a46cd4df9fa8d215f2a943d21cab7d9/modules/javafx.graphics/src/main/native-font/fontpath_linux.c, but this file is not included in the Android SDK, which only uses freetype. Therefore the UnsatisfiedLinkError when FTFactory calls getFallbacks.

Expected Behavior

Current Behavior

Steps to Reproduce

Your Environment