javaee.kt

import javax.servlet.http.HttpServlet
import javax.servlet.http.HttpServletRequest
import javax.servlet.http.HttpServletResponse
import javax.servlet.annotation.WebServlet as web
import javax.inject.Inject
import javax.enterprise.context.Dependent

web(name = "Hello", value = array("/hello"))
public class HomeController : HttpServlet() {

    Inject
    var service: HelloService by kotlin.properties.Delegates.notNull()

    override fun doGet(req: HttpServletRequest?, resp: HttpServletResponse?) {
        doStuff(resp)
    }

    private fun doStuff(resp: HttpServletResponse?) {
        resp?.getWriter()?.write(service.message())
    }

}

Dependent
public class HelloService() {
    fun message(): String {
        return "Hello, CDI!"
    }
}