I have a class with a regular method and a native method that I'd like to mock:

```
public class MyClass {

  public int regularMethod() { ... }
  public void native myNativeMethod();

}

```

I am using Robolectric to test my app, and I am trying to figure out a way to mock these methods using a [custom shadow class](http://robolectric.org/custom-shadows/). Here is my shadow class:

```
@Implements(MyClass.class)
public class MyShadowClass {

  @Implementation
  public int regularMethod { return 0; }

  @Implementation
  public void nativeMethod { ... }

}

```

Here is my test:

```
@RunWith(RobolectricTestRunner.class)
@Config(manifest = Config.NONE)
public class MyTest {

  @Test
  @Config(shadows = { MyShadowClass.class })
  public void test() {
    MyClass obj = new MyClass();
    Assert.assertEquals(obj.regularMethod(), 0);
  }

}

```

This is not working as I thought. Mocking the native method might be a stretch with the Shadow class, but I thought that using a custom shadow class in this way would cause the shadow class code to get called.