kotlin object declaration inject class

问题

i am using kotlin + springboot to build my web application. i want to create a tool class ,so i coded like above:

@Service
object XXXUtil{

    @Autowired
    lateinit var restTemplate: RestTemplate
    @Autowired
    lateinit var objectMapper: ObjectMapper

    ...
}

but after i started the application, resTemplate cannot be injected.

kotlin.UninitializedPropertyAccessException: lateinit property 
restTemplate has not been initialized

is it because that object declaration does not allow injection or i code in a wrong way ,please help

来源：https://stackoverflow.com/questions/53845235/kotlin-object-declaration-inject-class