It isn't possible to configure the ChosenValueListBox in runtime.

[foal]

The ChosenValueListBox should act as delegate to all configuration methods (e.g. setPlaceholderText) of underlining ChosenListBox. Now to update placeholder text I need to keep the ChosenOption object allong with ChosenValueListBox.

On component create:

        options = new ChosenOptions();
        options.setNoResultsText(FtModuleRs.TXT.nothingFound());
        orders = new ChosenValueListBox<>(new UserOrderRendere(), options);

and something in code:

        options.setPlaceholderText(FtModuleRs.TXT.waitToLoad());
        orders.setAcceptableValues(ImmutableList.<UserOrder> of());

ugly, isn't?