Unable to find a model that matches key in 3.0-SNAPSHOT and Spring WebFlux

[mdsina]

I have an issues with generation of some swagger json.

I have method like that:

@GetMapping(value = "{callId}", produces = MediaType.APPLICATION_OCTET_STREAM_VALUE)
    @Timed
    public Mono<ResponseEntity<InputStreamResource>> getJavaScriptCall(@PathVariable("callId") String callId) {

that returns file to me for downloading.

But when I call v2/api-docs

I receive this:

                "responses": {
                    "200": {
                        "description": "OK",
                        "schema": {
                            "$ref": "Error-ModelName{namespace='org.springframework.http', name='ResponseEntityOfInputStreamResource'}",
                            "originalRef": "Error-ModelName{namespace='org.springframework.http', name='ResponseEntityOfInputStreamResource'}"
                        }
                    },

How can I tune Springfox to generate correct swagger specification?
I was trying that. But that didn't work for type ResponseEntity<InputStreamResource>

        Docket docket = new Docket(DocumentationType.SWAGGER_2)
            .alternateTypeRules(
                newRule(
                    typeResolver.resolve(ResponseEntity.class, InputStreamResource.class),
                    typeResolver.resolve(MultipartFile.class)
                )
            )
            .apiInfo(apiInfo)
            .securitySchemes(Collections.singletonList(oauth()))
            .securityContexts(List.of(securityContext()))
            .forCodeGeneration(true)
            .directModelSubstitute(java.nio.ByteBuffer.class, String.class)
            .genericModelSubstitutes(ResponseEntity.class, Mono.class, Flux.class, Publisher.class)
            .host(host)
            .protocols(protocols)
            .select()
            .apis(RequestHandlerSelectors.withClassAnnotation(RestController.class))
            .paths(regex(swaggerProperties.getDefaultIncludePattern()))
            .build();

Configuration for webflux support enabled:

@Configuration
@EnableSwagger2WebFlux
@Import(BeanValidatorPluginsConfiguration.class)
public class SwaggerConfig {

I use springfox-swagger2:3.0.0-SNAPSHOT version
Thanks.