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  1. ,
    Expert tip

    When installing an APK, it automatically extracts the libraries of the right arch type and has them available for System.loadLibrary. But, if you're trying to load a non-standard library, the installer won't know your app has 32bit native code.

  2. ,

    This is a sub-class of the LinkageError class and indicates that the JVM cannot find an appropriate native-language definition of a method declared as native. Compile a 64-bit version of your .dylib file.

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java.lang.reflect.InvocationTargetException at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at com.sun.javafx.application.LauncherImpl.launchApplicationWithArgs(LauncherImpl.java:389) at com.sun.javafx.application.LauncherImpl.launchApplication(LauncherImpl.java:328) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at sun.launcher.LauncherHelper$FXHelper.main(LauncherHelper.java:767)Caused by: java.lang.RuntimeException: Exception in Application start method at com.sun.javafx.application.LauncherImpl.launchApplication1(LauncherImpl.java:917) at com.sun.javafx.application.LauncherImpl.lambda$launchApplication$76(LauncherImpl.java:182) at java.lang.Thread.run(Thread.java:745)Caused by: java.lang.UnsatisfiedLinkError: /home/pi/jdk1.8.0_91/jre/lib/arm/libjfxmedia.so: /home/pi/jdk1.8.0_91/jre/lib/arm/libjfxmedia.so: wrong ELF class: ELFCLASS64 (Possible cause: architecture word width mismatch) at java.lang.ClassLoader$NativeLibrary.load(Native Method) at java.lang.ClassLoader.loadLibrary0(ClassLoader.java:1941) at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1824) at java.lang.Runtime.load0(Runtime.java:809) at java.lang.System.load(System.java:1086) at com.sun.glass.utils.NativeLibLoader.loadLibraryFullPath(NativeLibLoader.java:201) at com.sun.glass.utils.NativeLibLoader.loadLibraryInternal(NativeLibLoader.java:94) at com.sun.glass.utils.NativeLibLoader.loadLibrary(NativeLibLoader.java:39) at com.sun.media.jfxmediaimpl.NativeMediaManager.lambda$new$8(NativeMediaManager.java:115) at java.security.AccessController.doPrivileged(Native Method) at com.sun.media.jfxmediaimpl.NativeMediaManager.<init>(NativeMediaManager.java:106) at com.sun.media.jfxmediaimpl.NativeMediaManager$NativeMediaManagerInitializer.<clinit>(NativeMediaManager.java:77) at com.sun.media.jfxmediaimpl.NativeMediaManager.getDefaultInstance(NativeMediaManager.java:89) at com.sun.media.jfxmedia.MediaManager.canPlayProtocol(MediaManager.java:78) at com.sun.media.jfxmedia.locator.Locator.<init>(Locator.java:232) at javafx.scene.media.Media.<init>(Media.java:393) at simpleplayer.FXMLDocumentController.initialize(FXMLDocumentController.java:46) at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:2548) at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:2441) at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3214) at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3175) at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3148) at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3124) at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3104) at javafx.fxml.FXMLLoader.load(FXMLLoader.java:3097) at simpleplayer.SimplePlayer.start(SimplePlayer.java:22) at com.sun.javafx.application.LauncherImpl.lambda$launchApplication1$83(LauncherImpl.java:863) at com.sun.javafx.application.PlatformImpl.lambda$runAndWait$61(PlatformImpl.java:326) at com.sun.javafx.application.PlatformImpl.lambda$null$59(PlatformImpl.java:295) at java.security.AccessController.doPrivileged(Native Method) at com.sun.javafx.application.PlatformImpl.lambda$runLater$60(PlatformImpl.java:294) at com.sun.glass.ui.monocle.RunnableProcessor.runLoop(RunnableProcessor.java:92) at com.sun.glass.ui.monocle.RunnableProcessor.run(RunnableProcessor.java:51) ... 1 more