An opensource chat application in j2ee or flash ?

Question

I need a starting point to develop an on site chat to communicate site visitors with site owners. I'm looking for an open source chat application written in java/j2ee. Do you know any good applications that I could use?

I'm also not sure about the architecture of the solution. Currently I'm hesitate between:

• server site solution: an j2ee application
• client site solution: something that can talk over jabber/xmpp

What would you suggest?

Answer 1

Here are some list of chat servers. Check freecs.

Answer 2

I can recommend the smack libraries and the openfire chat server, both from Ignite Realtime and free to use.

Already used them in some Java projects, openfire is easy to configure, smack is pretty easy to use. And smack offers a brilliant debugging feature which really saved me a few times!