code: public CommandResponse execute(GwtCommand request) {
  		if (request != null) {
  			return commandDispatcher.execute(request.getCommandName(), request.getCommandRequest(),
  					request.getUserToken(), request.getLocale());
  		}
  		return null;
  	}
docs: Execute a GWT RPC command request, and return the response. These request come from the client, and the response
  is sent back to the client. We use a {@link CommandDispatcher} to actually execute the command.