Scala case match a String - scala

Question

I'm trying to match case against a String and have the following code:
val selectedAnswers: List[Int] = questionType match {
case "CHECK_BOX" => {
answerCheckBox match {
case Some(answers) => answers
case None => List()
}
}
case "RADIO_BUTTON" => {
answerRadio match {
case Some(answer) => List(answer)
case None => List()
}
}
case _ => {
List()
}
}
Why is it not falling through the _ case when the String is not RADIO_BUTTON or CHECK_BOX?
The values for answerRadio and answerCheckbox are actually coming from the form that I'm submitting to the controller.
val (currentQuesId, questionType, answerRadio, answerCheckBox) = runExamForm.bindFromRequest.get
And the form declaration looks like:
val runExamForm = Form(
tuple(
"currentQuestionId" -> number,
"questionType" -> text,
"answerRadio" -> optional(number),
"answerCheckbox" -> optional(list(number))
)
)

Answer 1

This is "equivalent" version of your code:
val selectedAnswers: List[Int] = questionType match {
case "CHECK_BOX" => answerCheckBox.toList.flatten
case "RADIO_BUTTON" => answerRadio.toList
case _ => List()
}
Does it work as expected?

Answer 2

It's a long shot, but try replacing the _ with some other name (x is fine) and make sure that your code contains nothing but regular whitespace.
Very rarely I've seen bizarre errors like this caused by other non-printing characters in the code, which always seemed to be caused by pasting code from a chat on the OSX Skype client.
Also... Can you confirm in your code sample which line the MatchError occurs on?