> + });
> + if (!optionalBootableVolume.isPresent()) {
> + return Type.LOCAL.ordinal();
> + }
> + return optionalBootableVolume.get().getType().ordinal();
> + }
> +
> + private Optional<OperatingSystem> tryExtractOperatingSystemFrom(final
> String imageId) {
> + Set<OperatingSystem> operatingSystemsAvailable =
> createObjectOptionsSupplier.get().getVirtualGuestOperatingSystems();
> + return tryFind(FluentIterable.from(operatingSystemsAvailable)
> + .filter(new Predicate<OperatingSystem>() {
> + @Override
> + public boolean apply(OperatingSystem input) {
> + return input.getId().contains(imageId);
> + }
> + }), Predicates.notNull());
agreed. the not-null filter is confusing, as you would have gotten a NPE here,
at `input.getId()` right?
```java
+ return input.getId().contains(imageId);
```
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