jpacontainer vaadin 7 ClassNotFoundException: Property$ConversionException

Vaadin 6 / 7 / 8
1

hi,

i have a problem with jpacontainer and vaadin 7. I have a Menuentity like this:


@Entity
@Table(name = "menu")
public class Menu extends BaseEntity implements Serializable {   // BaseEntity has id, uuid etc...

    @Column(name = "display_name", nullable = false, length = 45)
    private String displayName;

    @Column(nullable = false)
    private short folder;

    @Column(nullable = false)
    private int parent;

    @Column(nullable = false)
    private int position;

    @Column(name = "programm_name", length = 45)
    private String programmName;

    @OneToMany(mappedBy = "menu")
    private List<MenuRolle> menuRolles;

    public Menu() {
    }
    getter ..... setter....

and a jpacontainersection like this:


ComboBox menuCB = new ComboBox();
menuContainer = JPAContainerFactory.makeReadOnly(Menu.class, dao.getEntityManager());
menuCB.setContainerDataSource(menuContainer);
menuCB.setCaption("Caption");
menuCB.setPropertyDataSource(new SingleSelectTranslator(menuCB));
menuCB.setItemCaptionPropertyId("displayName");

and i get the following error: [com.vaadin.Application]
(http-localhost-127.0.0.1-8080-2) Terminal error:: java.lang.NoClassDefFoundError: com/vaadin/data/Property$ConversionException

thank you!

2

It looks like Property.ConversionException has moved to Converter.ConversionException (and maybe changed a little) in Vaadin 7.

Please
file a ticket
 about this for JPAContainer, indicating that it applies to Vaadin 7.

Mentioning the ticket number here might also help others looking for the issue in the future.

3

ok i’ll file a bug! but is there any workaround for this behaviour?

4

Hi,

I haven’t checked if there is some obstacle for it but IMO the Property could still have a deprecated alias for the ConversationException. That would make it more backwards compatible and add-on wouldn’t need a separate branch for Vaadin 7 (at least at this point).

cheers,
matti

5

here is the ticketnumber:
http://dev.vaadin.com/ticket/9163