groovy dependencies { implementation 'com.google.auto.service:auto-service:1.0-rc4' annotationProcessor 'com.google.auto.service:auto-service:1.0-rc4' } public interface HelloService { void sayHello(); } import com.google.auto.service.AutoService; @AutoService(HelloService.class) public class HelloServiceImpl implements HelloService { @Override public void sayHello() { System.out.println("Hello, AutoService!"); } }