Annotation processor fails when `ServerRequest` / `ServerResponse` are field-injected in controller

[ah3nan]

When injecting Helidon io.helidon.webserver.ServerRequest or io.helidon.webserver.ServerResponse as fields inside a controller, the annotation processor fails compilation with an error like:

java: No dependency provided for com.example.app.ProductController on com.example.app.ProductController$Route, java: Dependencies [com.example.app.ProductController] are not provided - there are no @Singleton, @Component, @Factory/@Bean that currently provide this type. If this is an external dependency, consider specifying it via @External.

Steps to reproduce

@Controller
@Path("/products")
public class ProductController {

    @Inject
    ServerRequest request;

    @Inject
    ServerResponse response;

    @Produces("text/plain")
    @Get
    String getSimple() {

        return "simple";
    }
} 

Here is the code generated by the annotation processor.