GET  /clients/:clientId/info              Controllers.Application.client(clientId)

GET /clients/:clientId/info               Controllers.Application.client()

GET        /clients/:clientId/info        Controllers.Application.client(clientId)

object Application extends Controller {

  def client(id: String): Action[AnyContent] = client()

  def client() = Action {
    Ok("")
  }

}

public class Application extends Controller {

    public static Result client(String id) {
        return client();
    }

    public static Result client() {
        return ok();
    }

}