Return customized http status code

build.gradle

buildscript {
	ext {
		kotlinVersion = '1.1.4-3'
		springBootVersion = '2.0.0.M4'
	}
	repositories {
		mavenCentral()
		maven { url "https://repo.spring.io/snapshot" }
		maven { url "https://repo.spring.io/milestone" }
	}
	dependencies {
		classpath("org.springframework.boot:spring-boot-gradle-plugin:${springBootVersion}")
		classpath("org.jetbrains.kotlin:kotlin-gradle-plugin:${kotlinVersion}")
		classpath("org.jetbrains.kotlin:kotlin-allopen:${kotlinVersion}")
	}
}

apply plugin: 'kotlin'
apply plugin: 'kotlin-spring'
apply plugin: 'idea'
apply plugin: 'org.springframework.boot'
apply plugin: 'io.spring.dependency-management'

version = '0.0.1-SNAPSHOT'
sourceCompatibility = 1.8
compileKotlin {
	kotlinOptions.jvmTarget = "1.8"
}
compileTestKotlin {
	kotlinOptions.jvmTarget = "1.8"
}

repositories {
	mavenCentral()
	maven { url "https://repo.spring.io/snapshot" }
	maven { url "https://repo.spring.io/milestone" }
}


dependencies {
	compile('org.springframework.boot:spring-boot-starter-web')
	compile("org.jetbrains.kotlin:kotlin-stdlib-jre8:${kotlinVersion}")
	compile("org.jetbrains.kotlin:kotlin-reflect:${kotlinVersion}")
	testCompile('org.springframework.boot:spring-boot-starter-test')
}

src_main_kotlin_me_pengisgood_demo_DemoApplication.kt

package me.pengisgood.demo

import org.springframework.boot.SpringApplication
import org.springframework.boot.autoconfigure.SpringBootApplication

@SpringBootApplication
class DemoApplication

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

src_main_kotlin_me_pengisgood_demo_DemoController.kt

package me.pengisgood.demo

import org.springframework.http.ResponseEntity
import org.springframework.web.bind.annotation.GetMapping
import org.springframework.web.bind.annotation.RestController

@RestController
class DemoController {

    @GetMapping("/hello")
    fun helloKotlin(): ResponseEntity<Any> {
        return ResponseEntity.status(105).build()
    }
}