Have you added your newly created place to AppPlaceHistoryMapper ? http://code.google.com/webtoolkit/doc/latest/DevGuideMvpActivitiesAndPlaces.html#PlaceHistoryMapper
@WithTokenizers({HelloPlace.Tokenizer.class, GoodbyePlace.Tokenizer.class}) public interface AppPlaceHistoryMapper extends PlaceHistoryMapper { } -- You received this message because you are subscribed to the Google Groups "Google Web Toolkit" group. To post to this group, send email to google-web-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.