Scala: Printing fields and values of given class

So I wrote Debgug trait that is meant to print fields and values that are stored in class.

class Point(xv: Int, yv: Int) extends Debug {
var x: Int = xv
var y: Int = yv
var a: String = "test"

}

trait Debug{
    def debugVars():Any = {
        var i = 0
        val vars = this.getClass.getDeclaredFields

        for(v <- vars){
        v.setAccessible(true)
        println("Field: " + vars(i).getName() + " => " + vars(i).get())
        i+=1
        }
    }
}

var p : Point = new Point(3,4)
p.debugVars()

The ouptut should be:

Field: x => 3
Field: y => 4
Field: a => test

But compiler (I am using eclipse Luna) throws following error:

java.lang.IllegalArgumentException: Can not set int field Point.x to scala.runtime.BoxedUnit
  at sun.reflect.UnsafeFieldAccessorImpl.throwSetIllegalArgumentException(Unknown Source)
  at sun.reflect.UnsafeFieldAccessorImpl.throwSetIllegalArgumentException(Unknown Source)
  at sun.reflect.UnsafeFieldAccessorImpl.ensureObj(Unknown Source)
  at sun.reflect.UnsafeIntegerFieldAccessorImpl.getInt(Unknown Source)
  at sun.reflect.UnsafeIntegerFieldAccessorImpl.get(Unknown Source)
  at java.lang.reflect.Field.get(Unknown Source)
  at Debug$$anonfun$debugVars$1.apply(<console>:21)
  at Debug$$anonfun$debugVars$1.apply(<console>:19)
  at scala.collection.IndexedSeqOptimized$class.foreach(IndexedSeqOptimized.scala:33)
  at scala.collection.mutable.ArrayOps$ofRef.foreach(ArrayOps.scala:186)
  at Debug$class.debugVars(<console>:19)
  at Point.debugVars(<console>:8)
  ... 53 elided

The problem for me is in the for loop "+vars(i).get()" but I don not have any idea how to repair it. Any solutions or tips?