TestModel.java

@Model(
        adaptables = Resource.class,
        adapters = TestModel.class,
        resourceType = TestModelImpl.RESOURCE_TYPE
)
@Slf4j
public class TestModelImpl implements TestModel {

    public static final String RESOURCE_TYPE = "demo/components/content/test";

    @OSGiService
    private FakeService fakeService;

    @Getter
    @Optional
    private String output;

    @PostConstruct
    protected void init() {
        output = fakeService.doSomething();
    }
}