Smack works fine on many xmpp server,but...
It fails on one server. "No response from server."
sent
<stream:stream to="talk.renren.com" xmlns="jabber:client" xmlns:stream="http://etherx.jabber.org/streams" version="1.0">
<starttls xmlns="urn:ietf:params:xml:ns:xmpp-tls"/>
<stream:stream to="talk.xiaonei.com" xmlns="jabber:client" xmlns:stream="http://etherx.jabber.org/streams" version="1.0">
</stream:stream>
received
<?xml version='1.0'?><stream:stream from='talk.xiaonei.com' xmlns='jabber:client' xmlns:stream='http://etherx.jabber.org/streams' version='1.0'>
<stream:features><starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'/><mechanisms xmlns='urn:ietf:params:xml:ns:xmpp-sasl'><mechanism>PLAIN</mechanism></mechanisms></stream:features>
<proceed ...