From: <glassfish_at_javadesktop.org>
Date: Sat, 05 Sep 2009 00:34:52 PDT

You should use "java.naming.provider.url" instead of "Context.PROVIDER_URL" when creating the resource adapter config.
Generic ra interprets the configuration as strings, it does not resolve Contex.PROVIDER_URL to "java.naming.provider.url"
[Message sent by forum member 'rampsarathy' (ramesh.parthasarathy_at_sun.com)]

http://forums.java.net/jive/thread.jspa?messageID=363007