Seems like it won't work with JScrollPane or ScrollPane?

[ve3344]

Seems like it won't work with JScrollPane or ScrollPane?
Here is an example:

fun main() {

    val content = JPanel().apply {
        layout = LinearLayout(LinearLayout.VERTICAL)
        for (i in 0..3){
            add(JButton("a"), LinearConstraints().apply {
                width = 100
                height = 60
            })
        }

    }
    JFrame().apply {
        layout = LinearLayout(LinearLayout.VERTICAL)

        add(JScrollPane(content), LinearConstraints().apply {
            width = 200
            height = 200
        })

        size = Dimension(300, 300)
        defaultCloseOperation = WindowConstants.EXIT_ON_CLOSE
        isVisible = true
    }
}