Bug 271067

Created attachment 164736 [details]
Example 1

When adding a parameterized JavaFX property (such as `ObjectProperty<?>` or `ListProperty<?>`), the wizard should ask for the type(s) it is applied to, for better consistency in the generated code.

Example:

When filling the wizard as shown in `Example_1.png`, the generated code will look like this.

    private final ListProperty<?> users = new SimpleListProperty<>();

    public ObservableList getUsers() {
        return users.get();
    }

    public void setUsers(ObservableList value) {
        users.set(value);
    }

    public ListProperty usersProperty() {
        return users;
    }

Here, `getUsers()` will return an `ObservableList<Object>`, forcing a cast in the client code. Instead, the generated code should look like this.

    private final ListProperty<User> users = new SimpleListProperty<>();

    public ObservableList<User> getUsers() {
        return users.get();
    }

    public void setUsers(ObservableList<User> value) {
        users.set(value);
    }

    public ListProperty<User> usersProperty() {
        return users;
    }