In my application's main class (subclass of Application), I have a public inner class that simply contains 3 public string objects. In the parent class I declare an object of that inner class.

public class MainApplication extends Application {
    public class Data {
        public String x;
        public String y;
        public String z;
    }

    private Data data;

    MainApplication() {
        data = new Data()

        data.x = "String";
    }
}

After I instantiate the object in the constructor, I get a runtime error when I try to assign any of the inner class object's variables.

Any idea what's up here??