Android: java.lang.IllegalAccessException when attempting to use a custom "Application" class

Question

I'm trying to create define a custom Application class as follows:

1. create an empty subclass of Application called MyApp
2. in the manifest, specify android::name for my application: <application android:name=".MyApp" ...

However, when I attempt to run my app, I get: java.lang.RuntimeException: Unable to instantiate application com.test.MyApp java.lang.IllegalAccessException: access to class not allowed

Answer 1

Make sure your custom class is public, has a public zero-argument constructor, and that the constructor chains to the superclass' constructor.

Answer 2

I agree with CommonsWare. If you extend android.app.Application to define custom application for your project, make sure that you have marked your class as public and public no-agrs constructor as well.

However, on android.app.Application API its mentioned that, There is normally no need to subclass Application. In most situation, static singletons can provide the same functionality in a more modular way.

Hope this will help.

Cheers.