I'm having problems with ListButton.
When I try to clean a ListButton the last text selected before remains selected, even with no item in the ListData of the ListButton.
I tried listButton.clear() and listButton.getListData().clear(), but with none of this I can scape the problem.
I debugged the application, and the listData of the ListButton is clear after getListData().clear(), but the last selected text remains showing.
See attached image.
Perhaps listButton.setButtonData(null) should be performed in ListButton#clear().