Well, if you're into src code, you could simply fetch TCP and ConnectionTable from CVS, and diff against 2.2.9.1 (or whatever you're running).
Otherwise, you could also fetch the entire 2.3alpha from CVS, build it yourself and try with the new JAR.
Or I could send you the JAR, I can do a build in 2 seconds here. If you prefer the latter, send me (bela at jboss dot com) an email and I'll reply with the new JAR file.