Spring boot 带多态性的Swagger OpenAPI客户端代码生成问题

我试图从现有的控制器中生成Swagger文档和Java瘦客户端。以下是示例类：

@JsonTypeInfo(use = JsonTypeInfo.Id.NAME, property = "clazz")
@JsonSubTypes({
        @JsonSubTypes.Type(value = Cat.class, name = "Cat"),
        @JsonSubTypes.Type(value = Fish.class, name = "Fish"),
        @JsonSubTypes.Type(value = Frog.class, name = "Frog")
})
public interface Animal {
    String getName();
    int getType();
}

这是控制器

@RestController
@RequestMapping("/animals")
public class AnimalController {

    @GetMapping(value = "/")
    public Animal[] getAnimalsByType(@RequestParam(required = false) String animalType) {
        AnimalType type = StringUtils.isNotBlank(animalType) ? AnimalType.valueOf(animalType) : null;
        Reflections reflections = new Reflections("com.xyz.openapi.server.model");
        return reflections.getSubTypesOf(Animal.class).stream()
                .map(animal -> {
                    try {
                        return animal.getDeclaredConstructor().newInstance();
                    } catch (InstantiationException | IllegalAccessException |
                            NoSuchMethodException | InvocationTargetException e) {
                        throw new RuntimeException(e);
                    }
                })
                .filter(animal -> animalType == null || type.index() == animal.getType())
                .toArray(Animal[] :: new);
    }
}

下面是build.gradle中的客户端代码生成任务

plugins {
    id "java"
    id "org.springframework.boot" version "2.3.1.RELEASE"
    id "io.spring.dependency-management" version "1.0.9.RELEASE"
    id "org.openapi.generator" version "5.1.0"
}
 
openApiGenerate {
        inputSpec.set("$rootDir/api-docs.json")
        outputDir.set("$rootDir/thinclient")
    
        groupId.set("com.xyz.openapi")
        id.set("openapi-thinclient")
        version.set("0.0.1-SNAPSHOT")
    
        apiPackage.set("com.xyz.openapi.thinclient.api")
        invokerPackage.set("com.xyz.openapi.thinclient.invoker")
        modelPackage.set("com.xyz.openapi.thinclient.model")
    
        generatorName.set("java");
        library.set("resttemplate")
        configOptions.put("serializationLibrary", "jackson")
    }

当我使用GradleOpenApiGenerate为java生成客户机代码时，我得到的客户机API如下所示

@javax.annotation.Generated(value = "org.openapitools.codegen.languages.JavaClientCodegen", date = "2021-05-24T19:20:33.823042600+05:30[Asia/Calcutta]")
@Component("com.xyz.openapi.thinclient.api.AnimalControllerApi")
public class AnimalControllerApi {
    private ApiClient apiClient;

    public AnimalControllerApi() {
        this(new ApiClient());
    }

    @Autowired
    public AnimalControllerApi(ApiClient apiClient) {
        this.apiClient = apiClient;
    }

    public ApiClient getApiClient() {
        return apiClient;
    }

    public void setApiClient(ApiClient apiClient) {
        this.apiClient = apiClient;
    }

    /**
     * 
     * 
     * <p><b>200</b> - OK
     * @param animalType  (optional)
     * @return List&lt;OneOfCatFishFrog&gt;
     * @throws RestClientException if an error occurs while attempting to invoke the API
     */
    public **List<OneOfCatFishFrog>** getAnimalsByType(String animalType) throws RestClientException {
        return getAnimalsByTypeWithHttpInfo(animalType).getBody();
    }
}

@javax.annotation.Generated（value=“org.openapitools.codegen.languages.JavaClientCodegen”，date=“2021-05-24T19:20:33.823042600+05:30[亚洲/加尔各答]”）
@组件（“com.xyz.openapi.thinclient.api.AnimalControllerApi”）
公共级动物控制{
私人ApiClient ApiClient；
公共动物控制{
这个（新的ApiClient（））；
}
@自动连线
公共动物控制中心（ApiClient ApiClient）{
this.apiClient=apiClient；
}
公共ApiClient getApiClient（）{
归还客户；
}
公共无效setApiClient（ApiClient ApiClient）{
this.apiClient=apiClient；
}
/**
* 
* 
*200-正常
*@param animalType（可选）
*@return ListOneOfCatFishFrog
*@如果在尝试调用API时发生错误，则会引发RestClientException
*/
公共**列表**getAnimalsByType（字符串animalType）引发RestClientException{
返回GetAnimalByTypewithHttpInfo（animalType）.getBody（）；
}
}

API的返回类型生成为

List

，而不是

List

。我需要做些什么改变来完成这件事吗？请建议