Match exhaustivity warning when matching scala.concurrent.duration.MILLISECONDS and more

[Zschimmer]

Compiler version

3.8.0-RC3

Minimized code

//import java.util.concurrent.TimeUnit.{DAYS, HOURS, MICROSECONDS, MILLISECONDS, MINUTES, NANOSECONDS, SECONDS}
import scala.concurrent.duration.*

object ScalaTest:

  def main(args: Array[String]): Unit =
    f(3.seconds)

  private def f(duration: FiniteDuration) =
    duration.unit match
      case NANOSECONDS =>
      case MICROSECONDS =>
      case MILLISECONDS =>
      case SECONDS =>
      case MINUTES =>
      case HOURS =>
      case DAYS =>

Output

Compiler emits a exhaustivity warning:

[warn] -- [E029] Pattern Match Exhaustivity Warning: /Users/joa/dev/js7/js7-base/shared/src/test/scala/js7/base/utils/ScalaTest.scala:12:13 
[warn] 12 |    duration.unit match
[warn]    |    ^^^^^^^^^^^^^
[warn]    |match may not be exhaustive.
[warn]    |
[warn]    |It would fail on pattern case: NANOSECONDS, MICROSECONDS, MILLISECONDS, SECONDS, MINUTES, HOURS
[warn]    |(More unmatched cases are elided)

Expectation

No warning, as with Scalac 3.7.4.

No warning is emitted when importing the TimeUnit values directly from java.util.concurrent.TimeUnit

Maybe scala.concurrrent.duration could export these values?