Yeah, I'm having the same problem and I would like a fix ...please tell me that 2.4.1 fixes this
The source is gone in 3.0, these classes are obsolete there. Are you browsing cvs? you have to try the attic or the 2.4 ( I think ) cvs branch. Before they left they moved to jbosspool, but I think this is post-2.4
With the jca stuff, you can specify "per-factory" or "per-user" pooling. I think "per-user" is what you want; I don't know if or how to do this with XADataSourceLoader configuration.