PropertyModel cannot work with Kotlin's private field with get()

[smallufo]

If a kotlin's model has a field :

class MyModel {
  private val theValue: Double
    get()  { return 1.0 }
}

and in the wicket page :
new PropertyModel(model , "theValue")

It will fail :

*WicketRuntimeException: Property could not be resolved for class: class
MyModel expression: theValue*

The solution : remove the private modifier :

class MyModel {
  val theValue: Double
    get()  { return 1.0 }
}

Is there any way to get around this (keep the private modifier) ?

(wicket 7.9.0 , Kotlin 1.2)