T svc = proxyProvider.getRemoteProxy(remoteService);
if (svc == null) {
// double check that the extensions loader has been bootstrapped
JaxrsExtensionsLoader extLoader = GWT.create(JaxrsExtensionsLoader.class);
extLoader.createProxies();
if (proxyProvider.getRemoteProxy(remoteService) == null)
throw new RuntimeException("No proxy found for JAX-RS interface: " + remoteService.getName());
else
return create(remoteService, callback, errorCallback);