I'm developing a JavaFX application which works perfectly fine on any Windows computer. Now I am trying to transfer that onto the Raspbian OS. My initial thought of perfect platform-independent Java got crashed really fast since I was not able to start the application without any configuration other than installing Raspbian, so I began reading into OpenJFX. After downloading and configuring OpenJFX (as explained in the Gluon Docs), I was able to start the application via sudo java -jar foo.jar. Fullscreen is fine and even the touch events of my RasPi-Display work when using sudo. The application contains a Button which executes the following:
FileChooser fileChooser = new FileChooser();
Window owner = null;
try {
owner = gui.getScene().getWindow();
} catch (NullPointerException ignored) {}
if (...) {
File initDirectory = ...
if (initDirectory.exists()) {
fileChooser.setInitialDirectory(initDirectory);
}
}
File file = fileChooser.showOpenDialog(owner);
if (file != null) {
...
}
Dont worry about the ... parts, I removed them for the sake of easier code. Clicking this button produces the following error:
Exception in thread "JavaFX Application Thread" java.lang.UnsupportedOperationException
at com.sun.glass.ui.monocle.MonocleApplication.staticCommonDialogs_showFileChooser(MonocleApplication.java:295)
at com.sun.glass.ui.CommonDialogs.showFileChooser(CommonDialogs.java:212)
at com.sun.javafx.tk.quantum.QuantumToolkit.showFileChooser(QuantumToolkit.java:1511)
at javafx.stage.FileChooser.showDialog(FileChooser.java:416)
at javafx.stage.FileChooser.showOpenDialog(FileChooser.java:350)
at myclass [code shown above]
at com.sun.javafx.event.CompositeEventHandler.dispatchBubblingEvent(CompositeEventHandler.java:86)
at com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:238)
at com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:191)
at com.sun.javafx.event.CompositeEventDispatcher.dispatchBubblingEvent(CompositeEventDispatcher.java:59)
at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:58)
at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
at com.sun.javafx.event.EventUtil.fireEventImpl(EventUtil.java:74)
at com.sun.javafx.event.EventUtil.fireEvent(EventUtil.java:49)
at javafx.event.Event.fireEvent(Event.java:198)
at javafx.scene.Node.fireEvent(Node.java:8411)
at javafx.scene.control.Button.fire(Button.java:185)
at com.sun.javafx.scene.control.behavior.ButtonBehavior.mouseReleased(ButtonBehavior.java:182)
at com.sun.javafx.scene.control.skin.BehaviorSkinBase$1.handle(BehaviorSkinBase.java:96)
at com.sun.javafx.scene.control.skin.BehaviorSkinBase$1.handle(BehaviorSkinBase.java:89)
at com.sun.javafx.event.CompositeEventHandler$NormalEventHandlerRecord.handleBubblingEvent(CompositeEventHandler.java:218)
at com.sun.javafx.event.CompositeEventHandler.dispatchBubblingEvent(CompositeEventHandler.java:80)
at com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:238)
at com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:191)
at com.sun.javafx.event.CompositeEventDispatcher.dispatchBubblingEvent(CompositeEventDispatcher.java:59)
at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:58)
at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
at com.sun.javafx.event.EventUtil.fireEventImpl(EventUtil.java:74)
at com.sun.javafx.event.EventUtil.fireEvent(EventUtil.java:54)
at javafx.event.Event.fireEvent(Event.java:198)
at javafx.scene.Scene$MouseHandler.process(Scene.java:3761)
at javafx.scene.Scene$MouseHandler.access$1500(Scene.java:3489)
at javafx.scene.Scene.impl_processMouseEvent(Scene.java:1762)
at javafx.scene.Scene$ScenePeerListener.mouseEvent(Scene.java:2498)
at com.sun.javafx.tk.quantum.GlassViewEventHandler$MouseEventNotification.run(GlassViewEventHandler.java:352)
at com.sun.javafx.tk.quantum.GlassViewEventHandler$MouseEventNotification.run(GlassViewEventHandler.java:275)
at java.security.AccessController.doPrivileged(Native Method)
at com.sun.javafx.tk.quantum.GlassViewEventHandler.lambda$handleMouseEvent$353(GlassViewEventHandler.java:388)
at com.sun.javafx.tk.quantum.QuantumToolkit.runWithoutRenderLock(QuantumToolkit.java:391)
at com.sun.javafx.tk.quantum.GlassViewEventHandler.handleMouseEvent(GlassViewEventHandler.java:387)
at com.sun.glass.ui.View.handleMouseEvent(View.java:555)
at com.sun.glass.ui.View.notifyMouse(View.java:937)
at com.sun.glass.ui.monocle.MonocleView.notifyMouse(MonocleView.java:119)
at com.sun.glass.ui.monocle.MouseInput.notifyMouse(MouseInput.java:314)
at com.sun.glass.ui.monocle.MouseInput.lambda$postMouseEvent$101(MouseInput.java:227)
at com.sun.glass.ui.monocle.RunnableProcessor.runLoop(RunnableProcessor.java:93)
at com.sun.glass.ui.monocle.RunnableProcessor.run(RunnableProcessor.java:52)
at java.lang.Thread.run(Thread.java:748)
java -version shows the usual, 1.8.0_131-b11, and from this point I have no idea what to do here. Is showOpenDialog just not supported in OpenJFX and if so, can I find the documentation for that somewhere? Or is there some configuration missing on my side? Should I try a different OpenJFX distribution, maybe the ones by https://chriswhocodes.com/?
Thanks for any tip, hint or solution you can provide.
