ListMenu not working on JDK 11

[Toumani]

Hello, I am finding issues using ListMenu. Here's my code :

class SidebarView : View() {
    override val root = hbox {
        text("Planies")
        listmenu(theme = "blue") {
            item(text = "Accueil") {
                activeItem = this
                whenSelected {  }
            }
            item(text = "Projets")
            item(text = "Calendrier")
            item(text = "Transactions")
            item(text = "Quitter")
        }
    }
}

I got the following error :
java.lang.reflect.InaccessibleObjectException: Unable to make protected javafx.collections.ObservableList javafx.scene.Parent.getChildren() accessible: module javafx.graphics does not "opens javafx.scene" to unnamed module @33e214c3
When I delete the item's the app runs well. What is going wrong with the ListMenu ?

[SchweinchenFuntik]

Write a version of Tornadofx, kotlin, JVM, JavaFX

[Toumani]

TornadoFX : 1.7.20
Kotlin : 1.4.32
JVM : openjdk version "11.0.11"
JavaFX : 11

[SchweinchenFuntik]

sorry for not answering earlier.

For java 11+ you need to use Tornadofx2-SNAPSHOT