public static <T> Optional<T> resolve(Supplier<T> resolver) {
    try {
        T result = resolver.get();
        return Optional.ofNullable(result);
    }
    catch (NullPointerException e) {
        return Optional.empty();
    }
}

Outer obj = new Outer();
resolve(() -> obj.getNested().getInner().getFoo());
    .ifPresent(System.out::println);