spring-boot-configuration-processor

@Repository

@service

Message<Object>

java.lang.NoClassDefFoundError: kotlin/reflect/full/KClasses

1.1.2-5

kotlin-reflect

lateinit var

Optional

public class Component {
  public Component(Required required, Optional<NotRequired> optional) {....}
}

public class Component {

  @Autowired(required=false) NotRequired optional;

  public Component(Required required) {....}
}

class Component(private val required:Required) {
  @Autowired(required = false) private var optional: NotRequired? = null
}

null

@Configuration
@SpringBootApplication
class DemoApplication {
    @Bean
    fun stringBean() : String? = null
}

@Component
class Runner(val whatever: Whatever) : CommandLineRunner {
    override fun run(vararg p0: String?) {
        whatever.hello()
    }
}

fun main(args: Array<String>) {
    SpringApplication.run(DemoApplication::class.java, *args)
}


@Component
class Whatever(val thing: String?) {
    fun hello() = println("hello ${thing ?: "world"}")
}

private var optional: NotRequired?

val

Parameter 1 of constructor .... required a bean of type `java.lang.String` that could not be found

@Bean
    fun stringBean() : String? = null