B4J Question Find Vertical Scroll Bars (TableView vs SplitPane)

[T201016]

It works fine for the TableView, and for the SplitPane it does not.
Is the method below correct?

Detail: SplitPane consists of two windows vertically separated.

Private Sub FindVerticalScrollBars (sp As SplitPane) As JavaObject
    Dim jo As JavaObject = sp
    Dim bars() As Object = jo.RunMethodJO("lookupAll", Array(".scroll-bar")).RunMethod("toArray", Null)
    Log(bars.Length) 'error Length = 0
    For Each baro As JavaObject In bars
        Dim orientation As String = baro.RunMethod("getOrientation", Null)
        If orientation = "VERTICAL" Then
            Log("OK")
            Return baro
        End If
    Next
    Return Null
End Sub