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javafxjfoenix

JavaFX desktop app won't start in a specific machine (works in others)

I have a java desktop app using Swing which I rewrote in JavaFX using SceneBuilder.

The Swing app works fine on all users machines (35 Machine). After rewriting the app in JavaFX, on one specific machine the app won't start and gives the below error message.

I couldn't figure out the issue. I appreciate if someone can give any help. Thank you. 

Exception in Application start method
java.lang.reflect.InvocationTargetException
        at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
        at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
        at java.base/java.lang.reflect.Method.invoke(Unknown Source)
        at javafx.graphics/com.sun.javafx.application.LauncherImpl.launchApplicationWithArgs(Unknown Source)
        at javafx.graphics/com.sun.javafx.application.LauncherImpl.launchApplication(Unknown Source)
        at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
        at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
        at java.base/java.lang.reflect.Method.invoke(Unknown Source)
        at java.base/sun.launcher.LauncherHelper$FXHelper.main(Unknown Source)
Caused by: java.lang.RuntimeException: Exception in Application start method
        at javafx.graphics/com.sun.javafx.application.LauncherImpl.launchApplication1(Unknown Source)
        at javafx.graphics/com.sun.javafx.application.LauncherImpl.lambda$launchApplication$2(Unknown Source)
        at java.base/java.lang.Thread.run(Unknown Source)
Caused by: java.lang.NoClassDefFoundError: com/sun/javafx/css/converters/PaintConverter
        at com.jfoenix.controls.JFXPasswordField$StyleableProperties.<clinit>(JFXPasswordField.java:205)
        at com.jfoenix.controls.JFXPasswordField.<init>(JFXPasswordField.java:156)
        at idehmis.controller.LoginController.<init>(LoginController.java:51)
        at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
        at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
        at java.base/jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
        at java.base/java.lang.reflect.Constructor.newInstance(Unknown Source)
        at java.base/java.lang.Class.newInstance(Unknown Source)
        at javafx.fxml/javafx.fxml.FXMLLoader$ValueElement.processAttribute(Unknown Source)
        at javafx.fxml/javafx.fxml.FXMLLoader$InstanceDeclarationElement.processAttribute(Unknown Source)
        at javafx.fxml/javafx.fxml.FXMLLoader$Element.processStartElement(Unknown Source)
        at javafx.fxml/javafx.fxml.FXMLLoader$ValueElement.processStartElement(Unknown Source)
        at javafx.fxml/javafx.fxml.FXMLLoader.processStartElement(Unknown Source)
        at javafx.fxml/javafx.fxml.FXMLLoader.loadImpl(Unknown Source)
        at javafx.fxml/javafx.fxml.FXMLLoader.loadImpl(Unknown Source)
        at javafx.fxml/javafx.fxml.FXMLLoader.loadImpl(Unknown Source)
        at javafx.fxml/javafx.fxml.FXMLLoader.loadImpl(Unknown Source)
        at javafx.fxml/javafx.fxml.FXMLLoader.loadImpl(Unknown Source)
        at javafx.fxml/javafx.fxml.FXMLLoader.loadImpl(Unknown Source)
        at javafx.fxml/javafx.fxml.FXMLLoader.loadImpl(Unknown Source)
        at javafx.fxml/javafx.fxml.FXMLLoader.load(Unknown Source)
        at idehmis.IDEHMIS.start(IDEHMIS.java:30)
        at javafx.graphics/com.sun.javafx.application.LauncherImpl.lambda$launchApplication1$9(Unknown Source)
        at javafx.graphics/com.sun.javafx.application.PlatformImpl.lambda$runAndWait$11(Unknown Source)
        at javafx.graphics/com.sun.javafx.application.PlatformImpl.lambda$runLater$9(Unknown Source)
        at java.base/java.security.AccessController.doPrivileged(Native Method)
        at javafx.graphics/com.sun.javafx.application.PlatformImpl.lambda$runLater$10(Unknown Source)
        at javafx.graphics/com.sun.glass.ui.InvokeLaterDispatcher$Future.run(Unknown Source)
        at javafx.graphics/com.sun.glass.ui.win.WinApplication._runLoop(Native Method)
        at javafx.graphics/com.sun.glass.ui.win.WinApplication.lambda$runLoop$3(Unknown Source)
        ... 1 more
Caused by: java.lang.ClassNotFoundException: com.sun.javafx.css.converters.PaintConverter
        at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(Unknown Source)
        at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(Unknown Source)
        at java.base/java.lang.ClassLoader.loadClass(Unknown Source)
Solution

  • it looks like the JVM is finding it difficult to locate the com.sun.javafx.css.converters.PaintConverter at runtimewhich causes the ClassNotFoundException Exception error, and which in turn causes the JFoenix library to throw java.lang.NoClassDefFoundError meaning the class was not found on the classpath. This indicates that we were trying to load the class definition, and the class did not exist on the classpath so first make sure you have the right version of java which is Java 8 to support JFoenix, them make sure The JFoenix library is located in you classpath.