I have the below interface as the common Http action for GET, PUT, POST and DELETE

@Validated
@ExecuteOn(TaskExecutors.BLOCKING)
public interface IHttpAction<T, R> {

    @Get(value = "/{?searchCriteria*}")
    HttpResponse<?> find(@QueryValue T searchCriteria);

    @Get(uri = "/{id}")
    HttpResponse<?> get(@Nonnull UUID id);

    HttpResponse<?> post(@Body T request);

    @Put(uri = "/{id}")
    HttpResponse<?> put(@NotNull UUID id, @Body T request);

    HttpResponse<?> delete(@NotNull UUID id);
}

Now I have the micronuat declarative client as below

public class TestHttpClient {
    @Client("/tag")
    public interface TagHttpClient extends IHttpAction<TagRequest, TagResponse> { }
}

Now I am writing Test case as below

@MicronautTest
public class TagControllerTest {
private final TestHttpClient.TagHttpClient testHttpClient;

    public TagControllerTest(TestHttpClient.TagHttpClient testHttpClient) {
        this.testHttpClient = testHttpClient;
    }

@Test
@DisplayName("Should create a tag with valid name")
void shouldCreateATagWithValidName() {

    var result =  this.testHttpClient.post(new TagRequest("schoolstaff"));
    Assertions.assertNotNull(result);
}
}

The controller is implementing the same IHttpAction with TagRequest and TagResponse

@Controller("/tag")
@Version("1")
public class TagController implements IHttpAction<TagRequest, TagResponse> {
    private final IServiceAction<TagRequest, TagResponse> iServiceAction;

    public TagController(IServiceAction<TagRequest, TagResponse> iServiceAction) {
        this.iServiceAction = iServiceAction;
    }

    @Override
    public HttpResponse<?> post(TagRequest request) {
        var result = this.iServiceAction.post(request);
        return result.match(()-> HttpResponse.ok(result.value), ()->HttpResponse.notFound(result.exception.getMessage()));
    }

   // Other implementation

}

When I run the test case facing the below issue

All possible Introduction advise exhausted and no implementation found for method: HttpResponse post(TagRequest arg0)
io.micronaut.aop.exceptions.UnimplementedAdviceException: All possible Introduction advise exhausted and no implementation found for method: HttpResponse post(TagRequest arg0)
    at io.micronaut.aop.chain.MethodInterceptorChain.proceed(MethodInterceptorChain.java:132)
    at io.micronaut.http.client.interceptor.HttpClientIntroductionAdvice.intercept(HttpClientIntroductionAdvice.java:202)
    at io.micronaut.aop.chain.MethodInterceptorChain.proceed(MethodInterceptorChain.java:143)
    at io.micronaut.validation.ValidatingInterceptor.validateReturnMicronautValidator(ValidatingInterceptor.java:153)
    at io.micronaut.validation.ValidatingInterceptor.intercept(ValidatingInterceptor.java:139)
    at io.micronaut.aop.chain.MethodInterceptorChain.proceed(MethodInterceptorChain.java:143)
    at schoolstaff.TestHttpClient$TagHttpClient$Intercepted.post(Unknown Source)
    at schoolstaff.integration.TagControllerTest.shouldCreateATagWithValidName(TagControllerTest.java:27)
    at java.base/java.lang.reflect.Method.invoke(Method.java:580)
    at io.micronaut.test.extensions.junit5.MicronautJunit5Extension$2.proceed(MicronautJunit5Extension.java:142)
    at io.micronaut.test.extensions.AbstractMicronautExtension.interceptEach(AbstractMicronautExtension.java:162)
    at io.micronaut.test.extensions.AbstractMicronautExtension.interceptTest(AbstractMicronautExtension.java:119)
    at io.micronaut.test.extensions.junit5.MicronautJunit5Extension.interceptTestMethod(MicronautJunit5Extension.java:129)
    at java.base/java.util.ArrayList.forEach(ArrayList.java:1596)
    at java.base/java.util.ArrayList.forEach(ArrayList.java:1596)