android9上找不到类

[Lemniscate317]

··· 06-24 16:54:38.384 7344-7344/? E/EdXposed-Bridge: java.lang.ClassNotFoundException: com.l.zsxqhook.Hook at java.lang.Class.classForName(Native Method) at java.lang.Class.forName(Class.java:453) at com.l.zsxqhook.HookLoader.getApkClass(HookLoader.java:101) at com.l.zsxqhook.HookLoader.access$200(HookLoader.java:27) at com.l.zsxqhook.HookLoader$1.afterHookedMethod(HookLoader.java:71) at de.robv.android.xposed.XC_MethodHook.callAfterHookedMethod(XC_MethodHook.java:68) at EdHooker_.hook(Unknown Source:142) at android.app.Instrumentation.newApplication(Instrumentation.java:1122) at android.app.LoadedApk.makeApplication(LoadedApk.java:1065) at android.app.ActivityThread.handleBindApplication(ActivityThread.java:5920) at com.elderdrivers.riru.xposed.entry.hooker.HandleBindAppHooker.hook(HandleBindAppHooker.java:85) at android.app.ActivityThread.access$1200(ActivityThread.java:200) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1673) at android.os.Handler.dispatchMessage(Handler.java:106) at android.os.Looper.loop(Looper.java:201) at android.app.ActivityThread.main(ActivityThread.java:6810) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:547) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:873) Caused by: java.lang.ClassNotFoundException: com.l.zsxqhook.Hook at java.lang.VMClassLoader.findLoadedClass(Native Method) at java.lang.ClassLoader.findLoadedClass(ClassLoader.java:738) at java.lang.ClassLoader.loadClass(ClassLoader.java:363) at java.lang.ClassLoader.loadClass(ClassLoader.java:312) at java.lang.Class.classForName(Native Method)  at java.lang.Class.forName(Class.java:453)  at com.l.zsxqhook.HookLoader.getApkClass(HookLoader.java:101)  at com.l.zsxqhook.HookLoader.access$200(HookLoader.java:27)  at com.l.zsxqhook.HookLoader$1.afterHookedMethod(HookLoader.java:71)  at de.robv.android.xposed.XC_MethodHook.callAfterHookedMethod(XC_MethodHook.java:68)  at EdHooker_.hook(Unknown Source:142)  at android.app.Instrumentation.newApplication(Instrumentation.java:1122)  at android.app.LoadedApk.makeApplication(LoadedApk.java:1065)  at android.app.ActivityThread.handleBindApplication(ActivityThread.java:5920)  at com.elderdrivers.riru.xposed.entry.hooker.HandleBindAppHooker.hook(HandleBindAppHooker.java:85)  at android.app.ActivityThread.access$1200(ActivityThread.java:200)  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1673)  at android.os.Handler.dispatchMessage(Handler.java:106)  at android.os.Looper.loop(Looper.java:201)  at android.app.ActivityThread.main(ActivityThread.java:6810)  at java.lang.reflect.Method.invoke(Native Method)  at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:547)  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:873)  Caused by: java.lang.NoClassDefFoundError: Failed resolution of: Lde/robv/android/xposed/IXposedHookLoadPackage; at java.lang.Class.classForName(Native Method)  at java.lang.Class.forName(Class.java:453)  at com.l.zsxqhook.HookLoader.getApkClass(HookLoader.java:101)  at com.l.zsxqhook.HookLoader.access$200(HookLoader.java:27)  at com.l.zsxqhook.HookLoader$1.afterHookedMethod(HookLoader.java:71)  at de.robv.android.xposed.XC_MethodHook.callAfterHookedMethod(XC_MethodHook.java:68)  at EdHooker_.hook(Unknown Source:142)  at android.app.Instrumentation.newApplication(Instrumentation.java:1122)  at android.app.LoadedApk.makeApplication(LoadedApk.java:1065)  at android.app.ActivityThread.handleBindApplication(ActivityThread.java:5920)  at com.elderdrivers.riru.xposed.entry.hooker.HandleBindAppHooker.hook(HandleBindAppHooker.java:85)  at android.app.ActivityThread.access$1200(ActivityThread.java:200)  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1673)  at android.os.Handler.dispatchMessage(Handler.java:106)  at android.os.Looper.loop(Looper.java:201)  at android.app.ActivityThread.main(ActivityThread.java:6810)  at java.lang.reflect.Method.invoke(Native Method)  at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:547)  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:873)  Caused by: java.lang.ClassNotFoundException: Didn't find class "de.robv.android.xposed.IXposedHookLoadPackage" on path: DexPathList[[zip file "/data/app/com.l.zsxqhook-eM_rq5Zft2oZZEB_0-7wtA==/base.apk"],nativeLibraryDirectories=[/system/lib]] at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:134) at java.lang.ClassLoader.loadClass(ClassLoader.java:379) at java.lang.ClassLoader.loadClass(ClassLoader.java:312) at java.lang.Class.classForName(Native Method)  at java.lang.Class.forName(Class.java:453)  at com.l.zsxqhook.HookLoader.getApkClass(HookLoader.java:101)  at com.l.zsxqhook.HookLoader.access$200(HookLoader.java:27)  at com.l.zsxqhook.HookLoader$1.afterHookedMethod(HookLoader.java:71)  at de.robv.android.xposed.XC_MethodHook.callAfterHookedMethod(XC_MethodHook.java:68)  at EdHooker_.hook(Unknown Source:142)  at android.app.Instrumentation.newApplication(Instrumentation.java:1122)  at android.app.LoadedApk.makeApplication(LoadedApk.java:1065)  at android.app.ActivityThread.handleBindApplication(ActivityThread.java:5920)  at com.elderdrivers.riru.xposed.entry.hooker.HandleBindAppHooker.hook(HandleBindAppHooker.java:85)  at android.app.ActivityThread.access$1200(ActivityThread.java:200)  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1673)  at android.os.Handler.dispatchMessage(Handler.java:106)  at android.os.Looper.loop(Looper.java:201)  at android.app.ActivityThread.main(ActivityThread.java:6810)  at java.lang.reflect.Method.invoke(Native Method)  at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:547)  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:873)  ···

提示我找不到真正执行的那个类，类名其实是对的。我怀疑是不是android9的api做了限制这个问题.还是说我哪里搞错了

[shuihuadx]

1. 你先确保Instant Run关闭了；
2. 然后再试试普通情况下，android9的hook有没有问题；
3. 最后，你可以参照HookLoader下的getApkClass方法，试试看使用反射的方式加载apk文件中的类，看是否能找到。（你目前日志中的apk文件路径为：/data/app/com.l.zsxqhook-eM_rq5Zft2oZZEB_0-7wtA==/base.apk）

[Lemniscate317]

正常hook是没有问题的，如果xposed_init指向我真正执行的那个类。我想问的是反射的方式加载是怎么加载。我上面问题漏了跟你说，我找不到类是在Class.forName那个地方找不到的。所以我有点懵，你所说用反射的方式要怎么反，是将pathClassloader换成别的还是说怎样

[shuihuadx]

不好意思，我表述不是很清楚； 我的意思是，你可以写一个普通的app，在这个app中去调用其它app中的方法（比如调用com.l.zsxqhook.Hook类中的方法），看能不能调用成功，来确认你的设备是不是特殊情况；因为我在Android9.0的模拟器上面是可以调用成功的（原谅我没有Android9.0的设备）

[Lemniscate317]

你的意思是用pathclassloader去load另一个app的data目录下的apk文件，并去尝试调用Hook方法看看是否能反射成功对吧。我现在改用6.0是没问题的，难受

[shuihuadx]

是的

[menshen]

我在9.0上也遇到这个问题了，我的修改是： private Class<?> getApkClass(Context context, String modulePackageName, String handleHookClass) throws Throwable {

    File apkFile = findApkFile(context, modulePackageName);

    if (apkFile == null) {

        throw new RuntimeException("寻找模块apk失败");

    }

    //加载指定的hook逻辑处理类，并调用它的handleHook方法

    PathClassLoader pathClassLoader = new PathClassLoader(apkFile.getAbsolutePath(), ClassLoader.getSystemClassLoader());

    Class<?> cls = Class.forName(handleHookClass, true, pathClassLoader);

    return cls;

}

我把ClassLoader.getSystemClassLoader()修改为了XposedBridge.BOOTCLASSLOADER 因为我这边的报错是找不到IXposedHookLoadPackage这个类，应该是在我们打包的apk里对xposedbrige是依赖关系，所以找不到IXposedHookLoadPackage 但是我现在有一点不明白，为什么XposedBridge.BOOTCLASSLOADER != ClassLoader.getSystemClassLoader()

[chengxuncc]

Hey, I found this.
Java reflection was limited in android 9

[Lingchen218]

如果是android studio 里面找不到要怎么判断？