You just need to "layer" GWT on top of the GAE/J "servlet/jsp" application by including web pages that load the JS generated by the GWT compiler.
I.e. you build ONE app that does it all, with server code and GWT generated JS all in one combined /war dir. You then debug locally on the devserver or deploy to a GAE app id. You develop GWT modules with client/shared/server code. Server code must be servlet code with no GWT calls. Shared code must be pure Java. Client code uses GWT jars and using the .get.XML module description files get compiled to JS in your /war Dir. Then load the generated "loader" for the JS code in an HTML file you put in /war also. There are GWT sample projects on App Engine you can follow. I have tried using the GWT RPCs from Android code and it works but is tricky and unduly couples your API for the mobile app to GWT. So I suggest you develop a core set of server API calls that you can call from (thin) GWT RPC services and an XML/JSON API you expose to your mobile apps (if you decide not to use endpoints). I will dig out a presentation I did on out experiences (SlideShare) and post a link....but you can find many tutorials and sample code. -- You received this message because you are subscribed to the Google Groups "Google Web Toolkit" group. To unsubscribe from this group and stop receiving emails from it, send an email to google-web-toolkit+unsubscr...@googlegroups.com. To post to this group, send email to google-web-toolkit@googlegroups.com. Visit this group at http://groups.google.com/group/google-web-toolkit. For more options, visit https://groups.google.com/groups/opt_out.
