In what way (and Restlet version) can a GWT application handle custom server-side exceptions and handle it from GWT client-side using the ClientProxy
interface such that the app can check if:
if(exception instanceof CustomServerException){
// Do UI stuff
}
Restlet 2.3 introduces annotated exceptions that allow to hide the use of the class ResourceException and leverage transparently user-defined exceptions on the client side with client proxy.
For more details, you can have à look at this link: https://templth.wordpress.com/2015/02/27/exception-handling-with-restlet/
Hope it helps you, Thierry