Validation is not working on nested REST endpoints

[BureschT]

Describe the bug

I have the following REST service with a nested endpoint. Validation does not work on the nested end point.

@Path("/api/test/validator")
@Consumes(MediaType.APPLICATION_JSON)
@Produces(MediaType.APPLICATION_JSON)
@Singleton
public class ValidatorTestRESTService {

    @GET
    @Path("/annotatedbean")
    public Response annotatedbean(@BeanParam @Valid InputParams params) {
        return Response.ok().entity(params).build();
    }


    @Path("/nested/{id}")
    @Produces(MediaType.APPLICATION_JSON)
    public NestedRESTResource nested(@PathParam("id") String id) {
        return new NestedRESTResource(id);
    }

    @Consumes(MediaType.APPLICATION_JSON)
    @Produces(MediaType.APPLICATION_JSON)
    @AllArgsConstructor
    public static class NestedRESTResource {

        private String id;

        @GET
        @Path("/annotatedbean")
        public Response annotatedbean(@BeanParam @Valid InputParams params) {
            return Response.ok().entity(params).build();
        }
    }
}

@Getter
@Setter
public class InputParams {

    @QueryParam("mandatoryString")
    @NotNull(message = "mandatoryString is mandatory")
    String mandatoryString;

}

Expected behavior

When I call "/api/test/validator/nested/42/annotatedbean" without providing "mandatoryString" parameter, I expect a HTTP 400 (bad request) response. A jakarta.validation.ConstraintViolationException thrown in the background , so I could map that exception too.

Actual behavior

Instead, I get HTTP 200 (OK)

How to Reproduce?

nested-rest-validation-issue.zip

Output of uname -a or ver

No response

Output of java -version

openjdk version "17.0.9" 2023-10-17

Quarkus version or git rev

3.10.0

Build tool (ie. output of mvnw --version or gradlew --version)

Apache Maven 3.9.6

Additional information

No response

[geoand]

What you are trying to do will not work properly because you are constructing NestedRESTResource manually.

One way of making it work is to use something like:

    @Path("/nested/{id}")
    @Produces(MediaType.APPLICATION_JSON)
    public NestedRESTResource nested(@Context ResourceContext context) {
        return context.getResource(NestedRESTResource.class);
    }

    @Consumes(MediaType.APPLICATION_JSON)
    @Produces(MediaType.APPLICATION_JSON)
    @Singleton
    public static class NestedRESTResource {

        @GET
        @Path("/annotatedbean")
        public Response annotatedbean(@BeanParam @Valid InputParams params, @PathParam("id") String id) {
            return Response.ok().entity(params).build();
        }
    }