Compiled java annotations with enum parameters are reported as scaladoc errors

[scabug]

The following file compiles nicely with scalac, but makes scaladoc complain about an error (tested with Scala 2.8.1 and the 2011-02-24 nightly):

package org.example

// A randomly chosen Java annotation with corresponding enum:
import java.lang.annotation.{Retention, RetentionPolicy}

// The enum used as a constant in this annotation will be make
// scaladoc signal an error.
@Retention(value=RetentionPolicy.SOURCE)
object Dummy {}

The scaladoc output says that it found one error:

$$ scaladoc Dummy.scala 
Dummy.scala:8: error: annotation argument needs to be a constant; found: RetentionPolicy.SOURCE
@Retention(value=RetentionPolicy.SOURCE)
                                 ^
model contains 0 documentable templates
one error found

As the annotation+enum used here is part of the JDK, and not something I've whipped together myself, I don't think this is a duplicate of bug #2764 (especially considering comments 30 and 31 in that bug).

[scabug]

Imported From: https://issues.scala-lang.org/browse/SI-4301?orig=1
Reporter: Harald Meland (haraldme)

[scabug]

@paulp said:
(In r24642) Modified some typer logic to allow annotation arguments for constants
which don't have the form Literal(_). The current logic seems to be
avoided most of the time, but scaladoc breaks when it runs into it.
This closes #4301. I can't figure out from the ticket what the deal
is with #2764 and what is presently happening, but it seems like this
patch could only improve the situation. Review by rytz.