OpenJDK 21 with FX (Azul, Bellsouth) on Windows: java.lang.UnsatisfiedLinkError: 'java.lang.String com.sun.javafx.font.direct, write.DWFactory.regReadFontLink(java.lang.String)'

[Kevin Rushforth]

This is a new native method (actually moved from another class) in 
JavaFX 21. This is very likely due to a mismatch between the native 
library and the Java classes. I suspect you have a directory in your 
PATH that is picking up an old javafx_font.dll library. Run your program 
with "-Djavafx.verbose=true" to see where the library is loaded from.

-- Kevin

On 9/29/2023 5:06 AM, Rony G. Flatscher wrote:
>
> Downloaded the 64-bit OpenJDK21 package for Windows that include 
> JavaFX from Azul ("FX") and Bellsouth ("full").
>
> Both packages cause the following error:
>
>     Exception in Application start method
>     Exception in thread "JavaFX Application Thread"
>     java.lang.UnsatisfiedLinkError: 'java.lang.String
>     com.sun.javafx.font.direct
>     write.DWFactory.regReadFontLink(java.lang.String)'
>             at
>     javafx.graphics/com.sun.javafx.font.directwrite.DWFactory.regReadFontLink(Native
>     Method)
>             at
>     javafx.graphics/com.sun.javafx.font.directwrite.DWFactory.getFallbacks(DWFactory.java:166)
>             at
>     javafx.graphics/com.sun.javafx.font.LogicalFont.getLinkedFonts(LogicalFont.java:214)
>             at
>     javafx.graphics/com.sun.javafx.font.LogicalFont.getNumSlots(LogicalFont.java:223)
>             at
>     javafx.graphics/com.sun.javafx.font.CompositeGlyphMapper.<init>(CompositeGlyphMapper.java:62)
>             at
>     javafx.graphics/com.sun.javafx.font.LogicalFont.getGlyphMapper(LogicalFont.java:439)
>             at
>     javafx.graphics/com.sun.javafx.text.GlyphLayout.breakRuns(GlyphLayout.java:229)
>             at
>     javafx.graphics/com.sun.javafx.text.PrismTextLayout.buildRuns(PrismTextLayout.java:819)
>             at
>     javafx.graphics/com.sun.javafx.text.PrismTextLayout.layout(PrismTextLayout.java:1070)
>             at
>     javafx.graphics/com.sun.javafx.text.PrismTextLayout.ensureLayout(PrismTextLayout.java:230)
>             at
>     javafx.graphics/com.sun.javafx.text.PrismTextLayout.getBounds(PrismTextLayout.java:256)
>             at
>     javafx.controls/com.sun.javafx.scene.control.skin.Utils.computeTextWidth(Utils.java:129)
>             at
>     javafx.controls/javafx.scene.control.skin.LabeledSkinBase.computeMinLabeledPartWidth(LabeledSkinBase.java:809)
>             at
>     javafx.controls/javafx.scene.control.skin.LabeledSkinBase.computeMinWidth(LabeledSkinBase.java:306)
>             at
>     javafx.controls/javafx.scene.control.Control.computeMinWidth(Control.java:504)
>             at
>     javafx.graphics/javafx.scene.Parent.minWidth(Parent.java:1049)
>             at
>     javafx.graphics/javafx.scene.layout.Region.minWidth(Region.java:1500)
>             at
>     javafx.graphics/javafx.scene.layout.Region.computeChildPrefAreaWidth(Region.java:1959)
>             at
>     javafx.graphics/javafx.scene.layout.AnchorPane.computeChildWidth(AnchorPane.java:344)
>             at
>     javafx.graphics/javafx.scene.layout.AnchorPane.layoutChildren(AnchorPane.java:380)
>             at
>     javafx.graphics/javafx.scene.Parent.layout(Parent.java:1208)
>             at
>     javafx.graphics/javafx.scene.Scene.doLayoutPass(Scene.java:594)
>             at
>     javafx.graphics/javafx.scene.Scene$ScenePulseListener.pulse(Scene.java:2600)
>             at
>     javafx.graphics/com.sun.javafx.tk.Toolkit.lambda$runPulse$2(Toolkit.java:401)
>             at
>     java.base/java.security.AccessController.doPrivileged(AccessController.java:400)
>             at
>     javafx.graphics/com.sun.javafx.tk.Toolkit.runPulse(Toolkit.java:400)
>             at
>     javafx.graphics/com.sun.javafx.tk.Toolkit.firePulse(Toolkit.java:430)
>             at
>     javafx.graphics/com.sun.javafx.tk.quantum.QuantumToolkit.pulse(QuantumToolkit.java:592)
>             at
>     javafx.graphics/com.sun.javafx.tk.quantum.QuantumToolkit.pulse(QuantumToolkit.java:572)
>             at
>     javafx.graphics/com.sun.javafx.tk.quantum.QuantumToolkit.pulseFromQueue(QuantumToolkit.java:565)
>             at
>     javafx.graphics/com.sun.javafx.tk.quantum.QuantumToolkit.lambda$runToolkit$11(QuantumToolkit.java:352)
>             at
>     javafx.graphics/com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java:95)
>             at
>     javafx.graphics/com.sun.glass.ui.win.WinApplication._runLoop(Native
>     Method)
>             at
>     javafx.graphics/com.sun.glass.ui.win.WinApplication.lambda$runLoop$3(WinApplication.java:185)
>             at java.base/java.lang.Thread.run(Thread.java:1583)
>
> Would anyone know how to fix this, if possible at all?
>
> ---rony
>
>
>
>
>
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