obj.getThing() == 12
        obj.getProperty("thing") == 12
        obj.getOtherThing() == ["Hello", "Number"]
        obj.doSomething() == "Hello Number 12"

        def returnType = obj.getClass().getDeclaredMethod("getThing").genericReturnType
        returnType == Number.class
        def otherReturnType = obj.getClass().getDeclaredMethod("getOtherThing").genericReturnType
        otherReturnType instanceof ParameterizedType

        @Inject
        public abstract List<T> getOtherThing();
    }

    public static abstract class AbstractClassRealizingTwoTypeParameters extends AbstractClassWithTwoTypeParameters<String, Number> {
        public String doSomething() {
            Number thing = getThing();
            List<String> otherThing = getOtherThing();
            return Joiner.on(" ").join(otherThing) + " " + thing;