Has anyone used Spring sleuth with Kotlin coroutin...

# spring

[allancochrane]

Has anyone used Spring sleuth with Kotlin coroutines? I ask because the code

@RequestMapping("/concurrent1")
  fun endPoint1() : String {
    <http://log.info|log.info>("/concurrent1")
    var s = ""
    runBlocking {
      val a = urls.map { url ->
        <http://log.info|log.info>(url)
        async(CommonPool) {
          restTemplate.getForObject(url, String::class.java)
        }
      }
      val b = a.map { it.await() }
      s = b.joinToString { "" }
    }
    return s
  }

records a unique trace for each HTTP call when sent to a Zipkin server. I suspect it’s something to do with coroutines running in a separate thread from the main thread.