@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;