Java style enums are accessed from the companion object

[bishabosha]

Minimized code

enum Color extends java.lang.Enum[Color] {
  case Red, Green, Blue
}

@main def Test = println(Color.Red)

Output

// bytecode for Test
public void Test();
    Code:
       0: getstatic     #31                 // Field scala/Predef$.MODULE$:Lscala/Predef$;
       3: getstatic     #36                 // Field Color$.MODULE$:LColor$;
       6: pop
       7: getstatic     #40                 // Field Color$.Red:LColor;
      10: invokevirtual #44                 // Method scala/Predef$.println:(Ljava/lang/Object;)V
      13: return

which is equivalent to println(Color$.Red)

Expectation

public void Test() {
  scala.Predef$.MODULE$.println(Color.Red);
}

this means that clients cannot swap out Color for an enum compiled by Java

[odersky]

We need some qualified input what scheme we should use. If someone has a clear idea, please speak up. Otherwise we will keep the status quo as it is now.