That GWT tutorial is inactive, superseded by a project that is for Java but not GWT. It seems like all the Google projects demonstrating GWT integration with App Engine (or Endpoints to anywhere) are being replaced by projects for Java not GWT.
Inactive: https://github.com/googlearchive/appengine-gwtguestbook-namespaces-java ------------------------------ status: inactive This project is no longer actively developed or maintained. For new work on this check out relevant link Google App Engine Java Runtime SDK - GWT Guestbook Demo ------------------------------ Links to GoogleCloudPlatform/java-docs-samples https://github.com/GoogleCloudPlatform/java-docs-samples/tree/master/appengine/multitenancy/ ------------------------------ Multitenancy Java sample Shows the usage of the Namespaces API. An App Engine guestbook using Java, Maven, and Objectify. ------------------------------ On Fri, 2017-01-06 at 09:00 -0800, 'George (Cloud Platform Support)' via Google App Engine wrote: > You may consider starting with a simple GWT tutorial, then add > features gradually. -- You received this message because you are subscribed to the Google Groups "Google App Engine" group. To unsubscribe from this group and stop receiving emails from it, send an email to google-appengine+unsubscr...@googlegroups.com. To post to this group, send email to google-appengine@googlegroups.com. Visit this group at https://groups.google.com/group/google-appengine. To view this discussion on the web visit https://groups.google.com/d/msgid/google-appengine/09f65e91-afa7-4179-9605-1121d016fa82%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
