@Value returning the property name instead of value

Question

I have a Controller like this:

public class Controller extends AbstractController {
    ...

    @Value("${application.property.list}")
    private Set<String> properties;

    ...

}

And the application.properties looks like this:

application.property.list = property1,property2,property3,property4

Why the field properties contains the property name "application.property.list" instead of the values?

However, if i create a separated @Component like this one:

@Component
public class AvailableProperties {

    private final Set<String> values;

    @Autowired
    private AvailableProperties(@Value("${application.property.list}") final Set<String> values) {
        this.values = values;
    }

    public Set<String> values() {
        return Collections.unmodifiableSet(values);
    }
}

Works perfectly by injecting it in the Controller

@Autowired
private AvailableProperties availableProperties;