TesterEchoServer.Config.PATH_ASYNC);
if (Endpoint.class.isAssignableFrom(clazz)) {
@SuppressWarnings("unchecked")
Class<? extends Endpoint> endpointClazz =
(Class<? extends Endpoint>) clazz;
wsSession = wsContainer.connectToServer(endpointClazz,
Builder.create().build(), uri);
} else {
wsSession = wsContainer.connectToServer(clazz, uri);
}