When generating mapper-implementations with MapStruct, using "jsr330" componentModel, micronaut will throw a NoSuchBeanException during runtime when trying to inject those.
A workaround would be to use a provider that will supply the mapper-objects, but the generated code should work.
Mapper definition:
@Mapper(componentModel = "jsr330")
public interface FooBarMapper {
Foo toFoo(Bar bar);
}
Controller:
@Controller
public class SomeController {
@Inject
public SomeController(FooBarMapper mapper) {
}
@Get
public String foo() {
return "foo";
}
}
pom.xml excerpt:
<annotationProcessorPaths>
<path>
<groupId>org.mapstruct</groupId>
<artifactId>mapstruct-processor</artifactId>
<version>${mapstruct.version}</version>
</path>
<path>
<groupId>io.micronaut</groupId>
<artifactId>micronaut-inject-java</artifactId>
<version>${micronaut.version}</version>
</path>
<path>
<groupId>io.micronaut.configuration</groupId>
<artifactId>micronaut-openapi</artifactId>
<version>${micronaut.version}</version>
</path>
</annotationProcessorPaths>
When calling the method on the controller, I would expect Micronaut to find the Mapstruct generated class (it is annotated with @Singleton), but instead, the result is
Message: No bean of type [com.example.FooBarMapper] exists. Ensure the class is declared a bean and if you are using Java or Kotlin make sure you have enabled annotation processing. Path Taken: new SomeController([FooBarMapper mapper]) io.micronaut.context.exceptions.DependencyInjectionException: Failed to inject value for parameter [mapper] of class: com.example.SomeController
