}
@Override
protected <T> GroupRequest<T> cast(Collection<Address> dests, Message msg,
RequestOptions options, boolean blockForResults) throws Exception {
RspFilter filter=options.getRspFilter();
RequestOptions newOptions = new RequestOptions(options.getMode(), options.getTimeout(), options.getAnycasting(),
(filter != null) ? new NoMuxHandlerRspFilter(filter) : new NoMuxHandlerRspFilter(),
options.getFlags());
return super.cast(dests, msg, newOptions, blockForResults);
}