I have an app with ~11k active installs for which I sometimes receive ClassNotFoundExceptions that I can't explain. They look like this:
java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{name.of.my.MainActivityClass}: java.lang.ClassNotFoundException: name.of.my.MainActivityClass in loader dalvik.system.PathClassLoader[/mnt/asec/name.of.my-2/pkg.apk]
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1743)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1851)
at android.app.ActivityThread.access$1500(ActivityThread.java:132)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1038)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:150)
at android.app.ActivityThread.main(ActivityThread.java:4293)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:507)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:849)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:607)
at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.ClassNotFoundException: name.of.my.MainActivityClass in loader dalvik.system.PathClassLoader[/mnt/asec/name.of.my-2/pkg.apk]
at dalvik.system.PathClassLoader.findClass(PathClassLoader.java:240)
at java.lang.ClassLoader.loadClass(ClassLoader.java:551)
at java.lang.ClassLoader.loadClass(ClassLoader.java:511)
at android.app.Instrumentation.newActivity(Instrumentation.java:1040)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1735)
... 11 more
I received some of these exceptions from users that updated my app (not only for the most recent version), so I think it is not a problem that is specific to some phones as the app worked for them before.
I got these exception reports for my main activity class, a receiver class and a BackupAgent class.
All of those classes are always instantiated directly from Android. My Manifest file looks like this:
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="name.of.my"
android:versionCode="20"
android:versionName="1.10.2"
android:installLocation="auto">
<uses-sdk android:minSdkVersion="4" android:targetSdkVersion="8" />
<application android:icon="#drawable/icon" android:label="#string/app_name" android:backupAgent="name.of.my.OwnBackupAgent">
<activity android:name="name.of.my.MainActivityClass"
android:label="#string/app_name"
android:theme="#style/MyTheme">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<receiver android:name="name.of.my.OwnReceiver">
<intent-filter>
<action android:name="android.intent.action.BOOT_COMPLETED" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
<intent-filter>
<action android:name="android.media.RINGER_MODE_CHANGED" />
</intent-filter>
</receiver>
</application>
</manifest>
After searching the net for some hours, the most likely explanations I found are:
it might be related to moving the app to SD card while there are still some services running (but the android dev guide says that all services are canceled in this case, and it doesn't explain why my main activity class suddenly can't be found anymore)
the .apk might be corrupted after updating via the android market. Could this be true? If yes, what can I do against it - if not, what else might be the problem?
Related
i am running one android application in which i am using ActionBar but from supported library for android 2.2
i have added two external jar file as a support libraries
android-support-v7-appcompact.jar
android-support-v13.jar
but when i run the sample in my device i getting following runtime error
java.lang.RuntimeException: Unable to instantiate activity
ComponentInfo{com.example.android.navigationdrawerexample/com.example.android.navigationdrawerexample.NavMainActivity}:
java.lang.ClassNotFoundException:
com.example.android.navigationdrawerexample.NavMainActivity in loader
dalvik.system.PathClassLoader[/data/app/com.example.android.navigationdrawerexample-1.apk]
at
android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2703)
at
android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2797)
at android.app.ActivityThread.access$2300(ActivityThread.java:135)
at
android.app.ActivityThread$H.handleMessage(ActivityThread.java:2132)
at android.os.Handler.dispatchMessage(Handler.java:99) at
android.os.Looper.loop(Looper.java:143) at
android.app.ActivityThread.main(ActivityThread.java:4914) at
java.lang.reflect.Method.invokeNative(Native Method) at
java.lang.reflect.Method.invoke(Method.java:521) at
com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:858)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616) at
dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.ClassNotFoundException: com.example.android.navigationdrawerexample.NavMainActivity in loader dalvik.system.PathClassLoader[/data/app/com.example.android.navigationdrawerexample-1.apk]
at dalvik.system.PathClassLoader.findClass(PathClassLoader.java:243)
at java.lang.ClassLoader.loadClass(ClassLoader.java:573)
at java.lang.ClassLoader.loadClass(ClassLoader.java:532)
at android.app.Instrumentation.newActivity(Instrumentation.java:1033)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2695)
here is the menifest file content
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.android.navigationdrawerexample"
android:versionCode="1"
android:versionName="1.0">
<uses-sdk android:minSdkVersion="7" />
<application
android:label="#string/app_name"
android:icon="#drawable/ic_launcher"
>
<activity android:name="NavMainActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN"/>
<category android:name="android.intent.category.LAUNCHER"/>
</intent-filter>
</activity>
</application>
</manifest>
order of jar files
You should not only look at errors but also at warnings (orange text color in eclipse logcat view). Dalvik class loading are often preceded by some interesting informations about why a class can't be loaded by the Dalvik, something like a super class not existing.
I updated the Sherlock action bar library to new version in my project. After compiling and running logcat shows NoClassDefFoundError.
I have checked the jar versions. I have added the jars in project libs folder. I also checked order and export tab in build path. I also tried clean and build. Still i am getting NoClassDefFoundError.
My LogCat is shown below
E/AndroidRuntime(9699): java.lang.NoClassDefFoundError: com.mobiotics.tvbuddydemo.TVBuddyMainActivity
E/AndroidRuntime(9699): at com.mobiotics.tvbuddydemo.SplashScreen.onCreate(SplashScreen.java:54)
E/AndroidRuntime(9699): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
E/AndroidRuntime(9699): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1722)
E/AndroidRuntime(9699): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1784)
E/AndroidRuntime(9699): at android.app.ActivityThread.access$1500(ActivityThread.java:123)
E/AndroidRuntime(9699): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:939)
E/AndroidRuntime(9699): at android.os.Handler.dispatchMessage(Handler.java:99)
E/AndroidRuntime(9699): at android.os.Looper.loop(Looper.java:123)
E/AndroidRuntime(9699): at android.app.ActivityThread.main(ActivityThread.java:3839)
E/AndroidRuntime(9699): at java.lang.reflect.Method.invokeNative(Native Method)
E/AndroidRuntime(9699): at java.lang.reflect.Method.invoke(Method.java:507)
E/AndroidRuntime(9699): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:841)
E/AndroidRuntime(9699): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:599)
E/AndroidRuntime(9699): at dalvik.system.NativeStart.main(Native Method)
THE error line in splash screen
TVBuddyMainActivity.setSuccess(false);
i cant figure out the cause earlier working fine
My MAINFEST
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.mobiotics.tvbuddydemo"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk android:minSdkVersion="8"
android:targetSdkVersion="15"
/>
<application
android:icon="#drawable/ic_launcher"
android:label="#string/app_name"
android:theme="#style/MyTheme"
android:screenOrientation="portrait"
>
<activity
android:name=".SplashScreen"
android:label="#string/app_name"
android:screenOrientation="portrait"
>
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity
android:name=".TVBuddyMain"
android:screenOrientation="portrait">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</activity>
<activity
android:name=".CustomSearch"
android:screenOrientation="portrait"
>
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</activity>
<activity
android:name=".PackageBuilderActivity"
android:screenOrientation="portrait"
>
</activity>
<service
android:name="com.mobiotics.tvbuddy.data.service.Droid_service"
android:exported="false" />
</application>
<uses-permission android:name="android.permission.CAMERA" android:required="false"/>
<uses-feature android:name="android.hardware.camera" android:required="false"/>
<uses-feature android:name="android.hardware.camera.autofocus" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
<uses-permission android:name="android.permission.INTERNET"/>
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
</manifest>
If you are using jar file. Do not add by "java Build path". Jar file should be in libs folder. if there is not libs folder create it and please put your jar file in libs folder. Then Right click on jar file and do build path and add to build path.
thank u
com.mobiotics.tvbuddydemo.TVBuddyMainActivity is not declared in android manifest file.
you have declared android:name=".TVBuddyMain" whic is not needed.
furthermore accessing static method inside an activity is not good idea.
TVBuddyMainActivity.setSuccess(false)
pass that false value through intent.
I have built an application for a large multicultural festival in my city that kicks off on Saturday. I've tweaked a lot of bugs in the iPhone version and we are waiting for Apple to approve it. I have taken that perfected version as the basis for the Android version.
The Android version looks and works great. I can run it on my Samsung Galaxy S II by either "Run as Android Application" in Eclipse or by uploading it to a server and downloading it into the phone. I can also email the app to myself and it works, too. I submitted it to the Google Play store and once it got into the wild (this is advertised on billboards, buses, everywhere) it crashes the minute it is opened.
I'm not really sure how to troubleshoot this when it works fine on the device before publication. I read about how it has to do with the MainActivity activity name, but everything looks like it lines up.
Error 1 [ClassNotFoundException in PathClassLoader.findClass()]:
java.lang.RuntimeException: Unable to instantiate activity
ComponentInfo{com.honestapi.folk2011/com.honestapi.folk2011.Folklorama}:
java.lang.ClassNotFoundException: com.honestapi.folk2011.Folklorama in loader
dalvik.system.PathClassLoader[/data/app/com.honestapi.folk2011-1.apk]
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1660)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1752)
at android.app.ActivityThread.access$1500(ActivityThread.java:123)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:993)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:126)
at android.app.ActivityThread.main(ActivityThread.java:3997)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:491)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:841)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:599)
at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.ClassNotFoundException: com.honestapi.folk2011.Folklorama in loader dalvik.system.PathClassLoader[/data/app/com.honestapi.folk2011-1.apk]
at dalvik.system.PathClassLoader.findClass(PathClassLoader.java:251)
at java.lang.ClassLoader.loadClass(ClassLoader.java:548)
at java.lang.ClassLoader.loadClass(ClassLoader.java:508)
at android.app.Instrumentation.newActivity(Instrumentation.java:1022)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1651)
Error 2 [ClassNotFoundException in BaseDexClassLoader.findClass()]:
java.lang.RuntimeException: Unable to instantiate activity
ComponentInfo{com.honestapi.folk2011/com.honestapi.folk2011.Folklorama}:
java.lang.ClassNotFoundException: com.honestapi.folk2011.Folklorama
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1894)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1995)
at android.app.ActivityThread.access$600(ActivityThread.java:128)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1161)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:137)
at android.app.ActivityThread.main(ActivityThread.java:4514)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:511)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:980)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:747)
at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.ClassNotFoundException: com.honestapi.folk2011.Folklorama
at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:61)
at java.lang.ClassLoader.loadClass(ClassLoader.java:501)
at java.lang.ClassLoader.loadClass(ClassLoader.java:461)
at android.app.Instrumentation.newActivity(Instrumentation.java:1027)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1885)
Any help would be greatly appreciated! I am in quite the pickle.
Edit - Here is the AndroidManifest.xml from the bin folder
<uses-sdk android:minSdkVersion="8" android:targetSdkVersion="15" />
<supports-screens android:largeScreens="true" android:normalScreens="true" android:smallScreens="true" android:resizeable="false" android:anyDensity="true" />
<uses-permission android:name="android.permission.VIBRATE" />
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_LOCATION_EXTRA_COMMANDS" />
<uses-permission android:name="android.permission.READ_PHONE_STATE" />
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="android.permission.GET_ACCOUNTS" />
<uses-permission android:name="android.permission.BROADCAST_STICKY" />
<uses-permission android:name="android.permission.CAMERA" />
<application android:icon="#drawable/ic_launcher" android:label="#string/app_name" android:theme="#style/AppTheme">
<activity android:name=".MainActivity" android:label="#string/title_activity_main">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity android:name="com.google.zxing.client.android.CaptureActivity" android:screenOrientation="landscape" android:configChanges="orientation|keyboardHidden" android:theme="#android:style/Theme.NoTitleBar.Fullscreen" android:windowSoftInputMode="stateAlwaysHidden">
<intent-filter>
<action android:name="com.phonegap.plugins.barcodescanner.SCAN"/>
<category android:name="android.intent.category.DEFAULT"/>
</intent-filter>
</activity>
<activity android:name="com.google.zxing.client.android.encode.EncodeActivity" android:label="#string/share_name">
<intent-filter>
<action android:name="com.phonegap.plugins.barcodescanner.ENCODE"/>
<category android:name="android.intent.category.DEFAULT"/>
</intent-filter>
</activity>
</application>
</manifest>
It turned out my main Java file was named "MainActivity.java" but it was being called as "Folklorama.java" throughout the project files. I renamed the file to Folklorama.java.
I got the stack trace below in the Android developer account. There is just one occurrence of this error.
java.lang.RuntimeException: Unable to instantiate application com.mysite.myapp.TestApplication: java.lang.ClassNotFoundException: com.mysite.myapp.TestApplication in loader dalvik.system.PathClassLoader[/data/app-private/com.mysite.myapp-2.apk]
at android.app.LoadedApk.makeApplication(LoadedApk.java:466)
at android.app.ActivityThread.handleBindApplication(ActivityThread.java:3268)
at android.app.ActivityThread.access$2200(ActivityThread.java:117)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:973)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:130)
at android.app.ActivityThread.main(ActivityThread.java:3691)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:507)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:912)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:670)
at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.ClassNotFoundException: com.myapp.myapp.TestApplication in loader dalvik.system.PathClassLoader[/data/app-private/com.mysite.myapp-2.apk]
at dalvik.system.PathClassLoader.findClass(PathClassLoader.java:240)
at java.lang.ClassLoader.loadClass(ClassLoader.java:551)
at java.lang.ClassLoader.loadClass(ClassLoader.java:511)
at android.app.Instrumentation.newApplication(Instrumentation.java:945)
at android.app.LoadedApk.makeApplication(LoadedApk.java:461)
... 11 more
In my manifest file, I have declared com.mysite.myapp.TestApplication.
My Manifest file looks like this:
<application
android:name="com.mysite.myapp.TestApplication"
android:icon="#drawable/app_icon"
android:label="#string/app_name"
android:theme="#style/Theme.myapp" >
<activity
android:name="com.mysite.myapp.ActivityDashboard"
android:configChanges="orientation|keyboard"
android:label="#string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
...
If your main home page is ActivityDashboard.java
insert as below or if TestApplication.java
replace .ActivityDashboard as .TestApplication in the activity tag
<package name="com.mysite.myapp"
<application
android:name="TestApplication"
android:icon="#drawable/app_icon"
android:label="#string/app_name"
android:theme="#style/Theme.myapp" >
<activity android:name=".ActivityDashboard" android:configChanges="orientation|keyboard"
android:label="#string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
......
</application>
android:name="com.mysite.myapp.ActivityDashboard"
Replace thr above in your manifest with the below.
android:name=".ActivityDashboard"
Alternatively:
android:name="com.mysite.myapp.TestApplication.ActivityDashboard"
I have this very unpeculiar exception.The thing is have i have this app that has a button to start
InputMethodService
that starts like this
public class MyGroovyIme extends InputMethodService {
and this is how it looks in manifest.
<service
android:name=".MyGroovyIme"
android:enabled="true"
android:exported="true"
android:permission="android.permission.BIND_INPUT_METHOD" >
<intent-filter>
<action android:name="android.view.InputMethod" />
<!-- <category android:name="android.intent.category.DEFAULT" /> -->
</intent-filter>
<meta-data
android:name="android.view.im"
android:resource="#xml/method" />
</service>
and this is how I start service
void startServer() {
Log.v(TAG, "Starting service...");
Intent serviceIntent = new Intent(this, MyGroovyIme.class);
startService(serviceIntent);
Log.v(TAG, "Starting service...success!!!");
// this.finish();
Log.v(TAG, "finish called...");
}
the whole setup works like a charm when i do it on Tablet(Moto XOOM ,its 3.2) but when I do it on Devices that run on 2.2 and 2.1(i havent tried it on 2.3 and cant use emulator either) this is what i get
java.lang.SecurityException: Not allowed to start service Intent { cmp=com.spp.ime.demo/.MyGroovyIme } without permission android.permission.BIND_INPUT_METHOD
at android.app.ContextImpl.startService(ContextImpl.java:840)
at android.content.ContextWrapper.startService(ContextWrapper.java:336)
at com.spp.ime.demo.GROOVY_IME_DEMOActivity.startServer(GROOVY_IME_DEMOActivity.java:137)
at com.spp.ime.demo.GROOVY_IME_DEMOActivity.onStartClick(GROOVY_IME_DEMOActivity.java:104)
at com.spp.ime.demo.GROOVY_IME_DEMOActivity.onClick(GROOVY_IME_DEMOActivity.java:67)
at android.view.View.performClick(View.java:2408)
at android.view.View$PerformClick.run(View.java:8816)
at android.os.Handler.handleCallback(Handler.java:587)
at android.os.Handler.dispatchMessage(Handler.java:92)
at android.os.Looper.loop(Looper.java:123)
at android.app.ActivityThread.main(ActivityThread.java:4633)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:521)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:858)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
at dalvik.system.NativeStart.main(Native Method)
I do understand the security concerns but shouldnt it be same for all devices or am i missing something specific to versions <3.2
After a long search have not found a reliable answer and still have not got the exact reason..
but going through the new features have found hardware features that were added at later versions may have led to this leniency in Android OS.
Here is the link describing major updates for Android here
// only work for pre-lolipop
<uses-permission
android:name="android.permission.BIND_INPUT_METHOD"
tools:ignore="ProtectedPermissions"
android:protectionLevel="signature" />
<service
android:name="SimpleIME"
android:permission="android.permission.BIND_INPUT_METHOD"
android:protectionLevel="signature">
<intent-filter>
<action android:name="android.view.InputMethod" />
</intent-filter>
<meta-data
android:name="android.view.im"
android:resource="#xml/method" />
</service>
<supports-screens
android:anyDensity="true"
android:largeScreens="true"
android:normalScreens="true"
android:smallScreens="true" />