Comment charger des images à partir du fichier css dans JavaFX 8

J'ai ce fichier css qui charge les images en JavaFX 8 application:

#pill-left {  
-fx-padding: 5;  
-fx-border-image-source: url("/com/dx57dc/images/left-btn.png");  
-fx-border-image-slice: 4 4 4 4 fill;  
-fx-border-image-width: 4 4 4 4;  
-fx-border-image-insets: 0;  
-fx-border-image-repeat: stretch;  
-fx-background-color: null !important;  
}  
#pill-left:selected { -fx-border-image-source: url("/com/dx57dc/images/left-btn-selected.png"); }  
#pill-left .label {  
-fx-text-fill: #d3d3d3;  
-fx-effect: dropshadow( one-pass-box , rgba(0,0,0,0.75) , 0, 0.0 , 0 , -1 );  
}  
#pill-left:selected .label {  
/* -fx-text-fill: black; */  
-fx-text-fill: white;  
-fx-effect: dropshadow( one-pass-box , white , 0, 0.0 , 0 , 1 );  
}  
#pill-center {  
-fx-padding: 5;  
-fx-border-image-source: url("/com/dx57dc/images/center-btn.png");  
-fx-border-image-slice: 4 4 4 4 fill;  
-fx-border-image-width: 4 4 4 4;  
-fx-border-image-insets: 0;  
-fx-border-image-repeat: stretch;  
-fx-background-color: null !important;  
}  
#pill-center:selected { -fx-border-image-source: url("/com/dx57dc/images/center-btn-selected.png"); }  
#pill-center .label {  
-fx-text-fill: #d3d3d3;  
-fx-effect: dropshadow( one-pass-box , rgba(0,0,0,0.75) , 0, 0.0 , 0 , -1 );  
}  
#pill-center:selected .label {  
-fx-text-fill: black;  
-fx-effect: dropshadow( one-pass-box , white , 0, 0.0 , 0 , 1 );  
}  
#pill-right {  
-fx-padding: 5;  
-fx-border-image-source: url("/com/dx57dc/images/right-btn.png");  
-fx-border-image-slice: 4 4 4 4 fill;  
-fx-border-image-width: 4 4 4 4;  
-fx-border-image-insets: 0;  
-fx-border-image-repeat: stretch;  
-fx-background-color: null !important;  
}  
#pill-right:selected { -fx-border-image-source: url("/com/dx57dc/images/right-btn-selected.png"); }  
#pill-right .label {  
-fx-text-fill: #d3d3d3;  
-fx-effect: dropshadow( one-pass-box , rgba(0,0,0,0.75) , 0, 0.0 , 0 , -1 );  
}  
#pill-right:selected .label {  
-fx-text-fill: black;  
-fx-effect: dropshadow( one-pass-box , white , 0, 0.0 , 0 , 1 );  
}  

Les images se trouvent dans le package Java com.dx57dc.images

En Java 7_25 ce code fonctionne comme prévu, mais en JavaFX 8 b99, j'obtiens cette erreur:

ava.lang.NullPointerException
at com.sun.javafx.sg.prism.NGRegion.renderContent(NGRegion.java:1129)
at com.sun.javafx.sg.prism.NGNode.doRender(NGNode.java:1598)
at com.sun.javafx.sg.prism.NGNode.render(NGNode.java:1520)
at com.sun.javafx.sg.prism.NGGroup.renderChildren(NGGroup.java:233)
at com.sun.javafx.sg.prism.NGGroup.renderContent(NGGroup.java:199)
at com.sun.javafx.sg.prism.NGRegion.renderContent(NGRegion.java:1249)
at com.sun.javafx.sg.prism.NGNode.doRender(NGNode.java:1598)
at com.sun.javafx.sg.prism.NGNode.render(NGNode.java:1520)
at com.sun.javafx.sg.prism.NGGroup.renderChildren(NGGroup.java:233)
at com.sun.javafx.sg.prism.NGGroup.renderContent(NGGroup.java:199)
at com.sun.javafx.sg.prism.NGRegion.renderContent(NGRegion.java:1249)
at com.sun.javafx.sg.prism.NGNode.doRender(NGNode.java:1598)
at com.sun.javafx.sg.prism.NGNode.render(NGNode.java:1520)
at com.sun.javafx.tk.quantum.ViewPainter.doPaint(ViewPainter.java:99)
at com.sun.javafx.tk.quantum.AbstractPainter.paintImpl(AbstractPainter.java:210)
at com.sun.javafx.tk.quantum.PresentingPainter.run(PresentingPainter.java:95)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:304)
at com.sun.javafx.tk.RenderJob.run(RenderJob.java:58)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at com.sun.javafx.tk.quantum.QuantumRenderer$PipelineRunnable.run(QuantumRenderer.java:129)
at java.lang.Thread.run(Thread.java:724)
D3D Vram Pool: 13,331,480 used (5.0%), 13,331,480 managed (5.0%), 268,435,456 total
20 total resources being managed
4 permanent resources (20.0%)
1 resources locked (5.0%)
7 resources contain interesting data (35.0%)
0 resources disappeared (0.0%)
D3D Vram Pool: 13,331,480 used (5.0%), 13,331,480 managed (5.0%), 268,435,456 total
20 total resources being managed
4 permanent resources (20.0%)
1 resources locked (5.0%)
7 resources contain interesting data (35.0%)
0 resources disappeared (0.0%)
D3D Vram Pool: 13,331,480 used (5.0%), 13,331,480 managed (5.0%), 268,435,456 total
20 total resources being managed
4 permanent resources (20.0%)
1 resources locked (5.0%)
7 resources contain interesting data (35.0%)
0 resources disappeared (0.0%)

Quelle est la bonne façon de charger des images, css, Java 8?

Liées JavaFX suivi de la question: RT-31859 NullPointerException at com.soleil.javafx.sg.prism.NGRegion.renderContent(NGRegion.java:1129)
les images sont chargées par rapport à la CSS de Fichiers, je devine, c'est que / est considéré comme un chemin absolu dans le système de fichiers mais je ne sais pas vraiment
Comment je peux définir le chemin d'accès de l'image seulement de travailler pour de fichier jar?

OriginalL'auteur Peter Penzov | 2013-07-23