Android to Unable to instantiate Application java.lang.ClassNotFoundException:

Question

I am working on application which is host on android market. Sometimes (once a month ) I got a crash report: Unable to instantiate application java.lang.ClassNotFoundException App downloads are between 10,000-50,000. I don't know why this exceptions raise on some devices not all ( I tested it on 3 different devices & I couldn't re-produce it at my end). I read articles/suggestions on different android forums regarding the issue but I didn't succeed in solving it. Does anyone face similar issue & suggest me what should I do? Note: I am extending application class like this ``` public class MyApplication extends Application { } ``` I register it in the manifest.xml like this ``` <application android:icon="@drawable/app_icon" android:label="@string/my_app_name" android:name="MyApplication"> ``` Stack Trace : ``` java.lang.RuntimeException: Unable to instantiate application com.xyz.MyApplication java.lang.ClassNotFoundException: com.xyz.MyApplication in loader dalvik.system.PathClassLoade…

Accepted Answer

I think the problem is with getApplication() which I have used in 10 different place. So I have used singleton pattern to solve this.

```
public class MyApplication extends Application {
    private static MyApplication me;

@Override
    public void onCreate() {        
        super.onCreate();
        me = this ;

}
    public static MyApplication getInstance() {
         return me;
    }
}
```

Now I have used getApplication() like this

```
     MyApplication application = MyApplication.getInstance();
```

insted of

```
     MyApplication application = (MyApplication) getApplication();
```

I have uploaded the fixed version on the market & now waiting if there is anymore this kind of crash. If everything goes perfect ( if no more crash in 2 weeks) then I will close the question. In meanwhile anyone has better idea or know the solution , please share it. Thanks,

Android to Unable to instantiate Application java.lang.ClassNotFoundException:

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