Android：致命异常：java.lang.NoClassDefFoundError（三星4.4.2）

Question

This crash appears only on Samsung with 4.4.2 SDK version and in rooted mode (Crashlytics informations):

Fatal Exception: java.lang.NoClassDefFoundError: android/graphics/drawable/Icon
       at java.lang.Class.getDeclaredMethods(Class.java)
       at java.lang.Class.getDeclaredMethods(Class.java:656)
       at android.view.ViewDebug.getExportedPropertyMethods(ViewDebug.java:960)
       at android.view.ViewDebug.exportMethods(ViewDebug.java:1047)
       at android.view.ViewDebug.dumpViewProperties(ViewDebug.java:997)
       at android.view.ViewDebug.dumpViewProperties(ViewDebug.java:983)
       at android.view.ViewDebug.dumpView(ViewDebug.java:900)
       at android.view.ViewDebug.dumpViewHierarchy(ViewDebug.java:870)
       at android.view.ViewDebug.dumpViewHierarchy(ViewDebug.java:867)
       at android.view.ViewDebug.dumpViewHierarchy(ViewDebug.java:867)
       at android.view.ViewDebug.dumpViewHierarchy(ViewDebug.java:867)
       at android.view.ViewDebug.dumpViewHierarchy(ViewDebug.java:867)
       at android.view.ViewDebug.dumpViewHierarchy(ViewDebug.java:867)
       at android.view.ViewDebug.dumpViewHierarchy(ViewDebug.java:867)
       at android.view.ViewDebug.dumpViewHierarchy(ViewDebug.java:867)
       at android.view.ViewDebug.dump(ViewDebug.java:793)
       at android.view.ViewDebug.dispatchCommand(ViewDebug.java:416)
       at android.view.ViewRootImpl$W.executeCommand(ViewRootImpl.java:6258)
       at android.view.IWindow$Stub.onTransact(IWindow.java:65)
       at android.os.Binder.execTransact(Binder.java:404)
       at dalvik.system.NativeStart.run(NativeStart.java)
Caused by java.lang.ClassNotFoundException: Didn't find class "android.graphics.drawable.Icon" on path: DexPathList[[zip file "/data/app/com.xxx-1.apk", zip file "/data/data/com.xxx/code_cache/secondary-dexes/com.xxx-1.apk.classes2.zip"],nativeLibraryDirectories=[/data/app-lib/com.xxx-1, /vendor/lib, /system/lib]]
       at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:56)
       at java.lang.ClassLoader.loadClass(ClassLoader.java:497)
       at java.lang.ClassLoader.loadClass(ClassLoader.java:457)
       at java.lang.Class.getDeclaredMethods(Class.java)
       at java.lang.Class.getDeclaredMethods(Class.java:656)
       at android.view.ViewDebug.getExportedPropertyMethods(ViewDebug.java:960)
       at android.view.ViewDebug.exportMethods(ViewDebug.java:1047)
       at android.view.ViewDebug.dumpViewProperties(ViewDebug.java:997)
       at android.view.ViewDebug.dumpViewProperties(ViewDebug.java:983)
       at android.view.ViewDebug.dumpView(ViewDebug.java:900)
       at android.view.ViewDebug.dumpViewHierarchy(ViewDebug.java:870)
       at android.view.ViewDebug.dumpViewHierarchy(ViewDebug.java:867)
       at android.view.ViewDebug.dumpViewHierarchy(ViewDebug.java:867)
       at android.view.ViewDebug.dumpViewHierarchy(ViewDebug.java:867)
       at android.view.ViewDebug.dumpViewHierarchy(ViewDebug.java:867)
       at android.view.ViewDebug.dumpViewHierarchy(ViewDebug.java:867)
       at android.view.ViewDebug.dumpViewHierarchy(ViewDebug.java:867)
       at android.view.ViewDebug.dumpViewHierarchy(ViewDebug.java:867)
       at android.view.ViewDebug.dump(ViewDebug.java:793)
       at android.view.ViewDebug.dispatchCommand(ViewDebug.java:416)
       at android.view.ViewRootImpl$W.executeCommand(ViewRootImpl.java:6258)
       at android.view.IWindow$Stub.onTransact(IWindow.java:65)
       at android.os.Binder.execTransact(Binder.java:404)
       at dalvik.system.NativeStart.run(NativeStart.java)

I can't understand why. My projet is correctly configured with Dex notion:

In Gradle file:

defaultConfig {

    minSdkVersion 19 // Min SDK supported by this app (= KITKAT)
    targetSdkVersion 26 // SDK dedicated for this app

    // Enabling multidex support.
    multiDexEnabled true

    ...

dependencies {
    implementation fileTree(include: ['*.jar'], dir: 'libs')

    // https://developer.android.com/studio/build/multidex.html
    implementation 'com.android.support:multidex:1.0.2'

    ...

And My App extends MultiDexApp:

public class MyApplication extends MultiDexApplication { ...

Have you got some explanations about this crash?

Thank you very much guys

Answer 1

I've experienced the same error in Xiaomi Device with Android 4.4. You can solve the problem by adding the multidex in attachBaseContext() and with the plain Application:

public class MyApplication extends Application {

  @Override protected void attachBaseContext(Context base) {
    super.attachBaseContext(base);
    MultiDex.install(this);
  }

}

Then add the following code to your app build.gradle :

android {

  ...

    dexOptions {
      jumboMode true
      javaMaxHeapSize "4g"
    } 
  ...
}

I've tested the code on Android 4.1, 4.4, 5.0, and 6.0

Answer 2

Multidex is working very unstable prior to Android 5.0. I can't run it properly for 2 my projects. Try to update all build tools to last version and Disable instant Run. For example some libraris not support multidex - https://issuetracker.google.com/issues/63999442