Failed to connect

Hi I’'m new to xmpp. please help.

I only have this in code:

try{

connection = new XMPPConnection(“talk.google.com”,5222);

} catch ()

and got error:

stream:error (text)

at org.jivesoftware.smack.PacketReader.parsePackets(PacketReader.java:320)

at org.jivesoftware.smack.PacketReader.access$000(PacketReader.java:43)

at org.jivesoftware.smack.PacketReader$1.run(PacketReader.java:63)

any idea what is going on? Thanks in advance

I fixed by using GoogleTalkConnection.