Annotation values can not be val's

[scabug]

I've got an annotation in a Java file:

import java.lang.annotation.Documented;
import java.lang.annotation.ElementType;
import java.lang.annotation.Inherited;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;

@Retention(RetentionPolicy.RUNTIME)
@Target( { ElementType.PACKAGE, ElementType.TYPE })
@Documented 
@Inherited
public @interface Anno {
    String action();
    String[] roles() default "";
    String[] deny() default "";
}

And some Scala code that uses the annotations:

object Action {
  val RENDER = "RENDER"
}
object Roles {
  val ADMIN = "ADMIN"
}

object Test {
  @Anno(action = "RENDER", roles = Array ( "ADMIN" ) )
  protected final class Foo

  @Anno(action = Action.RENDER, roles = Array ( Roles.ADMIN ) )
  protected final class Bar
}

After compiling the Java file, I compile the Scala file and
get the following error messages:

Test.scala:13: error: annotation argument needs to be a constant; found: Action.RENDER
@anno(action = Action.RENDER, roles = Array ( Roles.ADMIN ) )
^
Test.scala:13: error: annotation argument needs to be a constant; found: Roles.ADMIN
@anno(action = Action.RENDER, roles = Array ( Roles.ADMIN ) )
^
two errors found

Note that the first use of the annotation is Ok, but the
second use where the values are from a val, are flagged as
being not constant.

=== What versions of the following are you using? ===

• Scala: 2.8.1.final
• Java:1.6.0_22 64 bit
• Operating system: Linux of course

[scabug]

Imported From: https://issues.scala-lang.org/browse/SI-4089?orig=1
Reporter: Richard Emberson (rmemberson)

[scabug]

@hubertp said:
Seems like a duplicate of #2764 to me, but I will let Lukas to decide.

[scabug]

@lrytz said:
You need to add the final modifier to the value definitions in the scala objects.

From the specification:

A constant value definition is of the form
[[BR]]
final val x = e
[[BR]]
where e is a constant expression (�6.24). The final modifier must be present and no type annotation may be given.