java.lang.NoClassDefFoundError

javafx/embed/swing/JFXPanel

Samebug tips5

This error means there's a class missing in your classpath during runtime. You need to create a jar with all your dependencies and have it in your classpath. Check Maven Assembly Plugin and how to add your dependencies to a jar: https://goo.gl/U2zr8k

I had to build one fat jar that will include all dependencies from the other jars that i wanted to use.

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Solutions on the web410

  • via GitHub by JulianLai
    , 6 months ago
    javafx/embed/swing/JFXPanel
  • via Oracle Community by 866949, 11 months ago
    javafx/embed/swing/JFXPanel
  • via Unknown by rafael, 5 months ago
    The owner protected this stack trace.
  • Stack trace

    • java.lang.NoClassDefFoundError: javafx/embed/swing/JFXPanel at java.lang.Class.getDeclaredMethods0(Native Method) at java.lang.Class.privateGetDeclaredMethods(Class.java:2701) at java.lang.Class.privateGetMethodRecursive(Class.java:3048) at java.lang.Class.getMethod0(Class.java:3018) at java.lang.Class.getMethod(Class.java:1784) at sun.launcher.LauncherHelper.validateMainClass(LauncherHelper.java:544) at sun.launcher.LauncherHelper.checkAndLoadMain(LauncherHelper.java:526) Caused by: java.lang.ClassNotFoundException: javafx.embed.swing.JFXPanel at java.net.URLClassLoader.findClass(URLClassLoader.java:381) at java.lang.ClassLoader.loadClass(ClassLoader.java:424) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331) at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ... 7 more

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