jersey-scala includes an injection provider for @QueryParams of scala collection types, such as Option[String], but doesn't currently support @FormParams.
I think it may be as simple as adding: extends InjectableProvider[FormParam, Parameter] to ScalaCollectionSqueryParamInjectableProvider... I'll check it out.
jersey-scala includes an injection provider for @QueryParams of scala collection types, such as Option[String], but doesn't currently support @FormParams.