new NioEventLoopGroup(1, new DefaultExecutorServiceFactory("group1"), NioUdtProvider.MESSAGE_PROVIDER);
final NioEventLoopGroup group2 =
new NioEventLoopGroup(1, new DefaultExecutorServiceFactory("group2"), NioUdtProvider.MESSAGE_PROVIDER);
final Bootstrap boot1 = new Bootstrap();
boot1.group(group1)
.channelFactory(NioUdtProvider.MESSAGE_RENDEZVOUS)
.localAddress(addr1).remoteAddress(addr2).handler(handler1);
final Bootstrap boot2 = new Bootstrap();
boot2.group(group2)