Error message for Enums does not contain the Argument name about args4j

[KengoTODA]

I guess using metaVar parameter of Argument annotation works well for you.
Its default value is empty string.

@Argument(metaVar = "hoge")

Then, you can get message like this.

"foo" is not a valid value for "hoge"

[kuleszdl]

This way it works, many thanks! (I was sure I had tried this already, but now I rewrote the full example and it worked.)

[kohsuke]

Looks like in the current version, the default implementation does a better job on this.