class Main {
  public static abstract sealed class Sealed {
    public static final class SealedInheritor extends Sealed {}
  }

  int f(Sealed o) {
    return switch(o) {
      case Sealed.SealedIn<caret>, null
    }
  }

  int g(Sealed o) {
    return switch(o) {
      case null, Sealed.SealedIn<caret>
    }
  }

  int h(Sealed o) {
    return switch(o) {
      case Sealed.SealedIn<caret>
    }
  }
}