if (sender == null) { if (proxyList == null) sender = new MultiCastSender(); else sender = new TcpSender();
if (sender == null) { if (proxyList == null) sender = new MultiCastSender(); else sender = new TcpSender();
if (sender == null) { if (proxyList == null) sender = new MultiCastSender(); else sender = new TcpSender();
if (sender == null) { if (proxyList == null) sender = new MultiCastSender(); else sender = new TcpSender();